mediapipe/calculators/audio/spectrogram_calculator.proto

@@ -80,7 +80,7 @@ message SpectrogramCalculatorOptions {
   // If use_local_timestamp is true, the output packet's timestamp is based on
   // the last sample of the packet and it's inferred from the latest input
   // packet's timestamp.  If false, the output packet's timestamp is based on
-  // the cumulative timestamping, which is inferred from the initial input
+  // the cumulative timestamping, which is inferred from the intial input
   // timestamp and the cumulative number of samples.
   optional bool use_local_timestamp = 8 [default = false];
 }

mediapipe/calculators/audio/time_series_framer_calculator.proto

@@ -66,7 +66,7 @@ message TimeSeriesFramerCalculatorOptions {
   // If use_local_timestamp is true, the output packet's timestamp is based on
   // the last sample of the packet and it's inferred from the latest input
   // packet's timestamp.  If false, the output packet's timestamp is based on
-  // the cumulative timestamping, which is inferred from the initial input
+  // the cumulative timestamping, which is inferred from the intial input
   // timestamp and the cumulative number of samples.
   optional bool use_local_timestamp = 6 [default = false];
 }

mediapipe/calculators/core/BUILD

@@ -727,7 +727,6 @@ cc_library(
         "//mediapipe/framework/port:logging",
         "//mediapipe/framework/port:ret_check",
         "//mediapipe/framework/port:status",
-        "@com_google_absl//absl/status",
     ],
     alwayslink = 1,
 )
@@ -743,7 +742,6 @@ cc_test(
         "//mediapipe/framework/port:parse_text_proto",
         "//mediapipe/framework/port:status",
         "//mediapipe/framework/tool:options_util",
-        "//mediapipe/util:packet_test_util",
         "@com_google_absl//absl/memory",
         "@com_google_absl//absl/strings",
     ],

mediapipe/calculators/core/packet_sequencer_calculator_test.cc

@@ -71,7 +71,7 @@ TEST_F(PacketSequencerCalculatorTest, IsRegistered) {
       CalculatorBaseRegistry::IsRegistered("PacketSequencerCalculator"));
 }
 
-// Shows how control packets receive timestamps before and after frame packets
+// Shows how control packets recieve timestamps before and after frame packets
 // have arrived.
 TEST_F(PacketSequencerCalculatorTest, ChannelEarly) {
   CalculatorGraphConfig::Node node_config = BuildNodeConfig();

mediapipe/calculators/core/side_packet_to_stream_calculator.cc

@@ -17,7 +17,6 @@
 #include <set>
 #include <string>
 
-#include "absl/status/status.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/port/logging.h"
 #include "mediapipe/framework/port/ret_check.h"
@@ -33,7 +32,6 @@ namespace {
 constexpr char kTagAtPreStream[] = "AT_PRESTREAM";
 constexpr char kTagAtPostStream[] = "AT_POSTSTREAM";
 constexpr char kTagAtZero[] = "AT_ZERO";
-constexpr char kTagAtFirstTick[] = "AT_FIRST_TICK";
 constexpr char kTagAtTick[] = "AT_TICK";
 constexpr char kTagTick[] = "TICK";
 constexpr char kTagAtTimestamp[] = "AT_TIMESTAMP";
@@ -45,7 +43,6 @@ static std::map<std::string, Timestamp>* kTimestampMap = []() {
   res->emplace(kTagAtPostStream, Timestamp::PostStream());
   res->emplace(kTagAtZero, Timestamp(0));
   res->emplace(kTagAtTick, Timestamp::Unset());
-  res->emplace(kTagAtFirstTick, Timestamp::Unset());
   res->emplace(kTagAtTimestamp, Timestamp::Unset());
   return res;
 }();
@@ -62,8 +59,8 @@ std::string GetOutputTag(const CC& cc) {
 // timestamp, depending on the tag used to define output stream(s). (One tag can
 // be used only.)
 //
-// Valid tags are AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, AT_TICK, AT_FIRST_TICK,
-// AT_TIMESTAMP and corresponding timestamps are Timestamp::PreStream(),
+// Valid tags are AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, AT_TICK, AT_TIMESTAMP
+// and corresponding timestamps are Timestamp::PreStream(),
 // Timestamp::PostStream(), Timestamp(0), timestamp of a packet received in TICK
 // input, and timestamp received from a side input.
 //
@@ -99,7 +96,6 @@ class SidePacketToStreamCalculator : public CalculatorBase {
 
  private:
   bool is_tick_processing_ = false;
-  bool close_on_first_tick_ = false;
   std::string output_tag_;
 };
 REGISTER_CALCULATOR(SidePacketToStreamCalculator);
@@ -107,16 +103,13 @@ REGISTER_CALCULATOR(SidePacketToStreamCalculator);
 absl::Status SidePacketToStreamCalculator::GetContract(CalculatorContract* cc) {
   const auto& tags = cc->Outputs().GetTags();
   RET_CHECK(tags.size() == 1 && kTimestampMap->count(*tags.begin()) == 1)
-      << "Only one of AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, AT_TICK, "
-         "AT_FIRST_TICK and AT_TIMESTAMP tags is allowed and required to "
-         "specify output stream(s).";
-  const bool has_tick_output =
-      cc->Outputs().HasTag(kTagAtTick) || cc->Outputs().HasTag(kTagAtFirstTick);
-  const bool has_tick_input = cc->Inputs().HasTag(kTagTick);
-  RET_CHECK((has_tick_output && has_tick_input) ||
-            (!has_tick_output && !has_tick_input))
-      << "Either both TICK input and tick (AT_TICK/AT_FIRST_TICK) output "
-         "should be used or none of them.";
+      << "Only one of AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, AT_TICK and "
+         "AT_TIMESTAMP tags is allowed and required to specify output "
+         "stream(s).";
+  RET_CHECK(
+      (cc->Outputs().HasTag(kTagAtTick) && cc->Inputs().HasTag(kTagTick)) ||
+      (!cc->Outputs().HasTag(kTagAtTick) && !cc->Inputs().HasTag(kTagTick)))
+      << "Either both of TICK and AT_TICK should be used or none of them.";
   RET_CHECK((cc->Outputs().HasTag(kTagAtTimestamp) &&
              cc->InputSidePackets().HasTag(kTagSideInputTimestamp)) ||
             (!cc->Outputs().HasTag(kTagAtTimestamp) &&
@@ -155,17 +148,11 @@ absl::Status SidePacketToStreamCalculator::Open(CalculatorContext* cc) {
     // timestamp bound update.
     cc->SetOffset(TimestampDiff(0));
   }
-  if (output_tag_ == kTagAtFirstTick) {
-    close_on_first_tick_ = true;
-  }
   return absl::OkStatus();
 }
 
 absl::Status SidePacketToStreamCalculator::Process(CalculatorContext* cc) {
   if (is_tick_processing_) {
-    if (cc->Outputs().Get(output_tag_, 0).IsClosed()) {
-      return absl::OkStatus();
-    }
     // TICK input is guaranteed to be non-empty, as it's the only input stream
     // for this calculator.
     const auto& timestamp = cc->Inputs().Tag(kTagTick).Value().Timestamp();
@@ -173,9 +160,6 @@ absl::Status SidePacketToStreamCalculator::Process(CalculatorContext* cc) {
       cc->Outputs()
           .Get(output_tag_, i)
           .AddPacket(cc->InputSidePackets().Index(i).At(timestamp));
-      if (close_on_first_tick_) {
-        cc->Outputs().Get(output_tag_, i).Close();
-      }
     }
 
     return absl::OkStatus();
@@ -186,7 +170,6 @@ absl::Status SidePacketToStreamCalculator::Process(CalculatorContext* cc) {
 
 absl::Status SidePacketToStreamCalculator::Close(CalculatorContext* cc) {
   if (!cc->Outputs().HasTag(kTagAtTick) &&
-      !cc->Outputs().HasTag(kTagAtFirstTick) &&
       !cc->Outputs().HasTag(kTagAtTimestamp)) {
     const auto& timestamp = kTimestampMap->at(output_tag_);
     for (int i = 0; i < cc->Outputs().NumEntries(output_tag_); ++i) {

mediapipe/calculators/core/side_packet_to_stream_calculator_test.cc

@@ -27,17 +27,13 @@
 #include "mediapipe/framework/port/status.h"
 #include "mediapipe/framework/port/status_matchers.h"
 #include "mediapipe/framework/tool/options_util.h"
-#include "mediapipe/util/packet_test_util.h"
 
 namespace mediapipe {
 namespace {
 
-using ::testing::ElementsAre;
-using ::testing::Eq;
-using ::testing::HasSubstr;
-using ::testing::IsEmpty;
+using testing::HasSubstr;
 
-TEST(SidePacketToStreamCalculator, WrongConfigWithMissingTick) {
+TEST(SidePacketToStreamCalculator, WrongConfig_MissingTick) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -56,35 +52,10 @@ TEST(SidePacketToStreamCalculator, WrongConfigWithMissingTick) {
   EXPECT_THAT(
       status.message(),
       HasSubstr(
-          "Either both TICK input and tick (AT_TICK/AT_FIRST_TICK) output "
-          "should be used or none of them."));
+          "Either both of TICK and AT_TICK should be used or none of them."));
 }
 
-TEST(SidePacketToStreamCalculator,
-     WrongConfigWithMissingTickForFirstTickProcessing) {
-  CalculatorGraphConfig graph_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(
-          R"pb(
-            input_stream: "tick"
-            input_side_packet: "side_packet"
-            output_stream: "packet"
-            node {
-              calculator: "SidePacketToStreamCalculator"
-              input_side_packet: "side_packet"
-              output_stream: "AT_FIRST_TICK:packet"
-            }
-          )pb");
-  CalculatorGraph graph;
-  auto status = graph.Initialize(graph_config);
-  EXPECT_FALSE(status.ok());
-  EXPECT_THAT(
-      status.message(),
-      HasSubstr(
-          "Either both TICK input and tick (AT_TICK/AT_FIRST_TICK) output "
-          "should be used or none of them."));
-}
-
-TEST(SidePacketToStreamCalculator, WrongConfigWithMissingTimestampSideInput) {
+TEST(SidePacketToStreamCalculator, WrongConfig_MissingTimestampSideInput) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -105,7 +76,7 @@ TEST(SidePacketToStreamCalculator, WrongConfigWithMissingTimestampSideInput) {
                         "or none of them."));
 }
 
-TEST(SidePacketToStreamCalculator, WrongConfigWithNonExistentTag) {
+TEST(SidePacketToStreamCalculator, WrongConfig_NonExistentTag) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -121,13 +92,14 @@ TEST(SidePacketToStreamCalculator, WrongConfigWithNonExistentTag) {
   CalculatorGraph graph;
   auto status = graph.Initialize(graph_config);
   EXPECT_FALSE(status.ok());
-  EXPECT_THAT(status.message(),
-              HasSubstr("Only one of AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, "
-                        "AT_TICK, AT_FIRST_TICK and AT_TIMESTAMP tags is "
-                        "allowed and required to specify output stream(s)."));
+  EXPECT_THAT(
+      status.message(),
+      HasSubstr("Only one of AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, AT_TICK and "
+                "AT_TIMESTAMP tags is allowed and required to specify output "
+                "stream(s)."));
 }
 
-TEST(SidePacketToStreamCalculator, WrongConfigWithMixedTags) {
+TEST(SidePacketToStreamCalculator, WrongConfig_MixedTags) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -145,13 +117,14 @@ TEST(SidePacketToStreamCalculator, WrongConfigWithMixedTags) {
   CalculatorGraph graph;
   auto status = graph.Initialize(graph_config);
   EXPECT_FALSE(status.ok());
-  EXPECT_THAT(status.message(),
-              HasSubstr("Only one of AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, "
-                        "AT_TICK, AT_FIRST_TICK and AT_TIMESTAMP tags is "
-                        "allowed and required to specify output stream(s)."));
+  EXPECT_THAT(
+      status.message(),
+      HasSubstr("Only one of AT_PRESTREAM, AT_POSTSTREAM, AT_ZERO, AT_TICK and "
+                "AT_TIMESTAMP tags is allowed and required to specify output "
+                "stream(s)."));
 }
 
-TEST(SidePacketToStreamCalculator, WrongConfigWithNotEnoughSidePackets) {
+TEST(SidePacketToStreamCalculator, WrongConfig_NotEnoughSidePackets) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -173,7 +146,7 @@ TEST(SidePacketToStreamCalculator, WrongConfigWithNotEnoughSidePackets) {
           "Same number of input side packets and output streams is required."));
 }
 
-TEST(SidePacketToStreamCalculator, WrongConfigWithNotEnoughOutputStreams) {
+TEST(SidePacketToStreamCalculator, WrongConfig_NotEnoughOutputStreams) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -275,50 +248,7 @@ TEST(SidePacketToStreamCalculator, AtTick) {
   tick_and_verify(/*at_timestamp=*/1025);
 }
 
-TEST(SidePacketToStreamCalculator, AtFirstTick) {
-  CalculatorGraphConfig graph_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(
-          R"pb(
-            input_stream: "tick"
-            input_side_packet: "side_packet"
-            output_stream: "packet"
-            node {
-              calculator: "SidePacketToStreamCalculator"
-              input_stream: "TICK:tick"
-              input_side_packet: "side_packet"
-              output_stream: "AT_FIRST_TICK:packet"
-            }
-          )pb");
-  std::vector<Packet> output_packets;
-  tool::AddVectorSink("packet", &graph_config, &output_packets);
-  CalculatorGraph graph;
-
-  MP_ASSERT_OK(graph.Initialize(graph_config));
-  const int expected_value = 20;
-  const Timestamp kTestTimestamp(1234);
-  MP_ASSERT_OK(
-      graph.StartRun({{"side_packet", MakePacket<int>(expected_value)}}));
-
-  auto insert_tick = [&graph](Timestamp at_timestamp) {
-    MP_ASSERT_OK(graph.AddPacketToInputStream(
-        "tick", MakePacket<int>(/*doesn't matter*/ 1).At(at_timestamp)));
-    MP_ASSERT_OK(graph.WaitUntilIdle());
-  };
-
-  insert_tick(kTestTimestamp);
-
-  EXPECT_THAT(output_packets,
-              ElementsAre(PacketContainsTimestampAndPayload<int>(
-                  Eq(kTestTimestamp), Eq(expected_value))));
-
-  output_packets.clear();
-
-  // Should not result in an additional output.
-  insert_tick(kTestTimestamp + 1);
-  EXPECT_THAT(output_packets, IsEmpty());
-}
-
-TEST(SidePacketToStreamCalculator, AtTickWithMultipleSidePackets) {
+TEST(SidePacketToStreamCalculator, AtTick_MultipleSidePackets) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(
@@ -372,62 +302,6 @@ TEST(SidePacketToStreamCalculator, AtTickWithMultipleSidePackets) {
   tick_and_verify(/*at_timestamp=*/1025);
 }
 
-TEST(SidePacketToStreamCalculator, AtFirstTickWithMultipleSidePackets) {
-  CalculatorGraphConfig graph_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(
-          R"pb(
-            input_stream: "tick"
-            input_side_packet: "side_packet0"
-            input_side_packet: "side_packet1"
-            output_stream: "packet0"
-            output_stream: "packet1"
-            node {
-              calculator: "SidePacketToStreamCalculator"
-              input_stream: "TICK:tick"
-              input_side_packet: "side_packet0"
-              input_side_packet: "side_packet1"
-              output_stream: "AT_FIRST_TICK:0:packet0"
-              output_stream: "AT_FIRST_TICK:1:packet1"
-            }
-          )pb");
-  std::vector<Packet> output_packets0;
-  tool::AddVectorSink("packet0", &graph_config, &output_packets0);
-  std::vector<Packet> output_packets1;
-  tool::AddVectorSink("packet1", &graph_config, &output_packets1);
-  CalculatorGraph graph;
-
-  MP_ASSERT_OK(graph.Initialize(graph_config));
-  const int expected_value0 = 20;
-  const int expected_value1 = 128;
-  const Timestamp kTestTimestamp(1234);
-  MP_ASSERT_OK(
-      graph.StartRun({{"side_packet0", MakePacket<int>(expected_value0)},
-                      {"side_packet1", MakePacket<int>(expected_value1)}}));
-
-  auto insert_tick = [&graph](Timestamp at_timestamp) {
-    MP_ASSERT_OK(graph.AddPacketToInputStream(
-        "tick", MakePacket<int>(/*doesn't matter*/ 1).At(at_timestamp)));
-    MP_ASSERT_OK(graph.WaitUntilIdle());
-  };
-
-  insert_tick(kTestTimestamp);
-
-  EXPECT_THAT(output_packets0,
-              ElementsAre(PacketContainsTimestampAndPayload<int>(
-                  Eq(kTestTimestamp), Eq(expected_value0))));
-  EXPECT_THAT(output_packets1,
-              ElementsAre(PacketContainsTimestampAndPayload<int>(
-                  Eq(kTestTimestamp), Eq(expected_value1))));
-
-  output_packets0.clear();
-  output_packets1.clear();
-
-  // Should not result in an additional output.
-  insert_tick(kTestTimestamp + 1);
-  EXPECT_THAT(output_packets0, IsEmpty());
-  EXPECT_THAT(output_packets1, IsEmpty());
-}
-
 TEST(SidePacketToStreamCalculator, AtTimestamp) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
@@ -460,7 +334,7 @@ TEST(SidePacketToStreamCalculator, AtTimestamp) {
   EXPECT_EQ(expected_value, output_packets.back().Get<int>());
 }
 
-TEST(SidePacketToStreamCalculator, AtTimestampWithMultipleOutputs) {
+TEST(SidePacketToStreamCalculator, AtTimestamp_MultipleOutputs) {
   CalculatorGraphConfig graph_config =
       ParseTextProtoOrDie<CalculatorGraphConfig>(
           R"pb(

mediapipe/calculators/core/value_or_default_calculator_test.cc

@@ -174,7 +174,7 @@ TEST(ValueOrDefaultCalculatorTest, DefaultAndValues) {
       ElementsAre(kDefaultValue, 1, 2, kDefaultValue, 3, kDefaultValue));
 }
 
-TEST(ValueOrDefaultCalculatorTest, TimestampsMismatch) {
+TEST(ValueOrDefaultCalculatorTest, TimestampsMissmatch) {
   // Check that when we provide the inputs not on time - we don't get them.
   ValueOrDefaultRunner runner;
   const std::vector<int64_t> ticks = {1, 2, 5, 8, 12, 33, 231};

mediapipe/calculators/image/BUILD

@@ -301,11 +301,9 @@ cc_test(
         "//mediapipe/framework/port:parse_text_proto",
         "//mediapipe/gpu:gpu_buffer_to_image_frame_calculator",
         "//mediapipe/gpu:image_frame_to_gpu_buffer_calculator",
-        "//mediapipe/gpu:multi_pool",
         "//third_party:opencv",
         "@com_google_absl//absl/container:flat_hash_set",
         "@com_google_absl//absl/flags:flag",
-        "@com_google_absl//absl/log:absl_check",
         "@com_google_absl//absl/strings",
         "@com_google_googletest//:gtest_main",
     ],

mediapipe/calculators/image/affine_transformation_runner_opencv.cc

@@ -59,7 +59,7 @@ class OpenCvRunner
       const ImageFrame& input, const std::array<float, 16>& matrix,
       const AffineTransformation::Size& size,
       AffineTransformation::BorderMode border_mode) override {
-    // OpenCV warpAffine works in absolute coordinates, so the transform (which
+    // OpenCV warpAffine works in absolute coordinates, so the transfom (which
     // accepts and produces relative coordinates) should be adjusted to first
     // normalize coordinates and then scale them.
     // clang-format off

mediapipe/calculators/image/image_clone_calculator.cc

@@ -65,7 +65,7 @@ class ImageCloneCalculator : public Node {
     }
 #else
     MP_RETURN_IF_ERROR(mediapipe::GlCalculatorHelper::UpdateContract(
-        cc, /*request_gpu_as_optional=*/true));
+        cc, /*requesst_gpu_as_optional=*/true));
 #endif  // MEDIAPIPE_DISABLE_GPU
     return absl::OkStatus();
   }

mediapipe/calculators/image/image_cropping_calculator.proto

@@ -24,7 +24,7 @@ message ImageCroppingCalculatorOptions {
   }
 
   // Output texture buffer dimensions. The values defined in the options will be
-  // overridden by the WIDTH and HEIGHT input streams if they exist.
+  // overriden by the WIDTH and HEIGHT input streams if they exist.
   optional int32 width = 1;
   optional int32 height = 2;
 

mediapipe/calculators/image/image_file_properties_calculator.cc

@@ -77,7 +77,7 @@ absl::StatusOr<double> ComputeFocalLengthInPixels(int image_width,
   return focal_length_pixels;
 }
 
-absl::StatusOr<ImageFileProperties> GetImageFileProperties(
+absl::StatusOr<ImageFileProperties> GetImageFileProperites(
     const std::string& image_bytes) {
   easyexif::EXIFInfo result;
   int code = result.parseFrom(image_bytes);
@@ -151,7 +151,7 @@ class ImageFilePropertiesCalculator : public CalculatorBase {
     if (cc->InputSidePackets().NumEntries() == 1) {
       const std::string& image_bytes =
           cc->InputSidePackets().Index(0).Get<std::string>();
-      MP_ASSIGN_OR_RETURN(properties_, GetImageFileProperties(image_bytes));
+      MP_ASSIGN_OR_RETURN(properties_, GetImageFileProperites(image_bytes));
       read_properties_ = true;
     }
 
@@ -169,7 +169,7 @@ class ImageFilePropertiesCalculator : public CalculatorBase {
         return absl::OkStatus();
       }
       const std::string& image_bytes = cc->Inputs().Index(0).Get<std::string>();
-      MP_ASSIGN_OR_RETURN(properties_, GetImageFileProperties(image_bytes));
+      MP_ASSIGN_OR_RETURN(properties_, GetImageFileProperites(image_bytes));
       read_properties_ = true;
     }
     if (read_properties_) {

mediapipe/calculators/image/image_transformation_calculator.cc

@@ -656,15 +656,6 @@ absl::Status ImageTransformationCalculator::RenderGpu(CalculatorContext* cc) {
                                                   input.format());
 
   gpu_helper_.BindFramebuffer(dst);
-
-  if (scale_mode_ == mediapipe::ScaleMode::FIT) {
-    // In kFit scale mode, the rendered quad does not fill the whole
-    // framebuffer, so clear it beforehand.
-    glClearColor(padding_color_[0] / 255.0f, padding_color_[1] / 255.0f,
-                 padding_color_[2] / 255.0f, 1.0f);
-    glClear(GL_COLOR_BUFFER_BIT);
-  }
-
   glActiveTexture(GL_TEXTURE1);
   glBindTexture(src1.target(), src1.name());
 

mediapipe/calculators/image/image_transformation_calculator.proto

@@ -46,14 +46,13 @@ message ImageTransformationCalculatorOptions {
   optional bool flip_horizontally = 5 [default = false];
   // Scale mode.
   optional ScaleMode.Mode scale_mode = 6;
-  // Padding type. This option is only used when the scale mode is FIT. If set
-  // to true (default), a constant border is added with color specified by
-  // padding_color. If set to false, a border is added by replicating edge
-  // pixels (only supported for CPU).
+  // Padding type. This option is only used when the scale mode is FIT.
+  // Default is to use BORDER_CONSTANT. If set to false, it will use
+  // BORDER_REPLICATE instead.
   optional bool constant_padding = 7 [default = true];
 
   // The color for the padding. This option is only used when the scale mode is
-  // FIT. Default is black.
+  // FIT. Default is black. This is for CPU only.
   optional Color padding_color = 8;
 
   // Interpolation method to use. Note that on CPU when LINEAR is specified,

mediapipe/calculators/image/image_transformation_calculator_test.cc

@@ -1,11 +1,9 @@
-#include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "absl/container/flat_hash_set.h"
 #include "absl/flags/flag.h"
-#include "absl/log/absl_check.h"
 #include "absl/strings/substitute.h"
 #include "mediapipe/framework/calculator.pb.h"
 #include "mediapipe/framework/calculator_framework.h"
@@ -18,14 +16,10 @@
 #include "mediapipe/framework/port/opencv_imgcodecs_inc.h"
 #include "mediapipe/framework/port/opencv_imgproc_inc.h"
 #include "mediapipe/framework/port/parse_text_proto.h"
-#include "mediapipe/gpu/multi_pool.h"
 #include "testing/base/public/gmock.h"
 #include "testing/base/public/googletest.h"
-#include "testing/base/public/gunit.h"
 #include "third_party/OpenCV/core.hpp"  // IWYU pragma: keep
-#include "third_party/OpenCV/core/base.hpp"
 #include "third_party/OpenCV/core/mat.hpp"
-#include "third_party/OpenCV/core/types.hpp"
 
 namespace mediapipe {
 
@@ -82,12 +76,11 @@ TEST(ImageTransformationCalculatorTest, NearestNeighborResizing) {
           ->Tag("OUTPUT_DIMENSIONS")
           .packets.push_back(input_output_dim_packet.At(Timestamp(0)));
 
-      ABSL_QCHECK_OK(runner.Run());
+      MP_ASSERT_OK(runner.Run());
       const auto& outputs = runner.Outputs();
-      ABSL_QCHECK_EQ(outputs.NumEntries(), 1);
+      ASSERT_EQ(outputs.NumEntries(), 1);
       const std::vector<Packet>& packets = outputs.Tag("IMAGE").packets;
-      ABSL_QCHECK_EQ(packets.size(), 1);
-
+      ASSERT_EQ(packets.size(), 1);
       const auto& result = packets[0].Get<ImageFrame>();
       ASSERT_EQ(output_dim.first, result.Width());
       ASSERT_EQ(output_dim.second, result.Height());
@@ -144,12 +137,11 @@ TEST(ImageTransformationCalculatorTest,
           ->Tag("OUTPUT_DIMENSIONS")
           .packets.push_back(input_output_dim_packet.At(Timestamp(0)));
 
-      ABSL_QCHECK_OK(runner.Run());
+      MP_ASSERT_OK(runner.Run());
       const auto& outputs = runner.Outputs();
-      ABSL_QCHECK_EQ(outputs.NumEntries(), 1);
+      ASSERT_EQ(outputs.NumEntries(), 1);
       const std::vector<Packet>& packets = outputs.Tag("IMAGE").packets;
-      ABSL_QCHECK_EQ(packets.size(), 1);
-
+      ASSERT_EQ(packets.size(), 1);
       const auto& result = packets[0].Get<ImageFrame>();
       ASSERT_EQ(output_dim.first, result.Width());
       ASSERT_EQ(output_dim.second, result.Height());
@@ -215,17 +207,17 @@ TEST(ImageTransformationCalculatorTest, NearestNeighborResizingGpu) {
       tool::AddVectorSink("output_image", &graph_config, &output_image_packets);
 
       CalculatorGraph graph(graph_config);
-      ABSL_QCHECK_OK(graph.StartRun({}));
+      MP_ASSERT_OK(graph.StartRun({}));
 
-      ABSL_QCHECK_OK(graph.AddPacketToInputStream(
+      MP_ASSERT_OK(graph.AddPacketToInputStream(
           "input_image",
           MakePacket<ImageFrame>(std::move(input_image)).At(Timestamp(0))));
-      ABSL_QCHECK_OK(graph.AddPacketToInputStream(
+      MP_ASSERT_OK(graph.AddPacketToInputStream(
           "image_size",
           MakePacket<std::pair<int, int>>(output_dim).At(Timestamp(0))));
 
-      ABSL_QCHECK_OK(graph.WaitUntilIdle());
-      ABSL_QCHECK_EQ(output_image_packets.size(), 1);
+      MP_ASSERT_OK(graph.WaitUntilIdle());
+      ASSERT_THAT(output_image_packets, testing::SizeIs(1));
 
       const auto& output_image = output_image_packets[0].Get<ImageFrame>();
       ASSERT_EQ(output_dim.first, output_image.Width());
@@ -295,16 +287,16 @@ TEST(ImageTransformationCalculatorTest,
       tool::AddVectorSink("output_image", &graph_config, &output_image_packets);
 
       CalculatorGraph graph(graph_config);
-      ABSL_QCHECK_OK(graph.StartRun({}));
+      MP_ASSERT_OK(graph.StartRun({}));
 
-      ABSL_QCHECK_OK(graph.AddPacketToInputStream(
+      MP_ASSERT_OK(graph.AddPacketToInputStream(
           "input_image", input_image_packet.At(Timestamp(0))));
-      ABSL_QCHECK_OK(graph.AddPacketToInputStream(
+      MP_ASSERT_OK(graph.AddPacketToInputStream(
           "image_size",
           MakePacket<std::pair<int, int>>(output_dim).At(Timestamp(0))));
 
-      ABSL_QCHECK_OK(graph.WaitUntilIdle());
-      ABSL_QCHECK_EQ(output_image_packets.size(), 1);
+      MP_ASSERT_OK(graph.WaitUntilIdle());
+      ASSERT_THAT(output_image_packets, testing::SizeIs(1));
 
       const auto& output_image = output_image_packets[0].Get<ImageFrame>();
       ASSERT_EQ(output_dim.first, output_image.Width());
@@ -319,112 +311,5 @@ TEST(ImageTransformationCalculatorTest,
   }
 }
 
-TEST(ImageTransformationCalculatorTest, FitScalingClearsBackground) {
-  // Regression test for not clearing the background in FIT scaling mode.
-  // First scale an all-red (=r) image from 8x4 to 8x4, so it's a plain copy:
-  //   rrrrrrrr
-  //   rrrrrrrr
-  //   rrrrrrrr
-  //   rrrrrrrr
-  // Then scale an all-blue image from 4x4 to 8x4 in FIT mode. This should
-  // introduce dark yellow (=y) letterboxes left and right due to padding_color:
-  //   yybbbbyy
-  //   yybbbbyy
-  //   yybbbbyy
-  //   yybbbbyy
-  // We make sure that the all-red buffer gets reused. Without clearing the
-  // background, the blue (=b) image will have red letterboxes:
-  //   rrbbbbrr
-  //   rrbbbbrr
-  //   rrbbbbrr
-  //   rrbbbbrr
-
-  constexpr int kSmall = 4, kLarge = 8;
-  ImageFrame input_image_red(ImageFormat::SRGBA, kLarge, kSmall);
-  cv::Mat input_image_red_mat = formats::MatView(&input_image_red);
-  input_image_red_mat = cv::Scalar(255, 0, 0, 255);
-
-  ImageFrame input_image_blue(ImageFormat::SRGBA, kSmall, kSmall);
-  cv::Mat input_image_blue_mat = formats::MatView(&input_image_blue);
-  input_image_blue_mat = cv::Scalar(0, 0, 255, 255);
-
-  Packet input_image_red_packet =
-      MakePacket<ImageFrame>(std::move(input_image_red));
-  Packet input_image_blue_packet =
-      MakePacket<ImageFrame>(std::move(input_image_blue));
-
-  CalculatorGraphConfig graph_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(absl::Substitute(
-          R"pb(
-            input_stream: "input_image"
-            output_stream: "output_image"
-
-            node {
-              calculator: "ImageFrameToGpuBufferCalculator"
-              input_stream: "input_image"
-              output_stream: "input_image_gpu"
-            }
-
-            node {
-              calculator: "ImageTransformationCalculator"
-              input_stream: "IMAGE_GPU:input_image_gpu"
-              output_stream: "IMAGE_GPU:output_image_gpu"
-              options: {
-                [mediapipe.ImageTransformationCalculatorOptions.ext]: {
-                  scale_mode: FIT
-                  output_width: $0,
-                  output_height: $1,
-                  padding_color: { red: 128, green: 128, blue: 0 }
-                }
-              }
-            }
-
-            node {
-              calculator: "GpuBufferToImageFrameCalculator"
-              input_stream: "output_image_gpu"
-              output_stream: "output_image"
-            })pb",
-          kLarge, kSmall));
-
-  std::vector<Packet> output_image_packets;
-  tool::AddVectorSink("output_image", &graph_config, &output_image_packets);
-
-  CalculatorGraph graph(graph_config);
-  ABSL_QCHECK_OK(graph.StartRun({}));
-
-  // Send the red image multiple times to cause the GPU pool to actually use
-  // a pool.
-  int num_red_packets =
-      std::max(kDefaultMultiPoolOptions.min_requests_before_pool, 1);
-  for (int n = 0; n < num_red_packets; ++n) {
-    ABSL_QCHECK_OK(graph.AddPacketToInputStream(
-        "input_image", input_image_red_packet.At(Timestamp(n))));
-  }
-  ABSL_QCHECK_OK(graph.AddPacketToInputStream(
-      "input_image", input_image_blue_packet.At(Timestamp(num_red_packets))));
-
-  ABSL_QCHECK_OK(graph.WaitUntilIdle());
-  ABSL_QCHECK_EQ(output_image_packets.size(), num_red_packets + 1);
-
-  const auto& output_image_red = output_image_packets[0].Get<ImageFrame>();
-  const auto& output_image_blue =
-      output_image_packets[num_red_packets].Get<ImageFrame>();
-
-  ABSL_QCHECK_EQ(output_image_red.Width(), kLarge);
-  ABSL_QCHECK_EQ(output_image_red.Height(), kSmall);
-  ABSL_QCHECK_EQ(output_image_blue.Width(), kLarge);
-  ABSL_QCHECK_EQ(output_image_blue.Height(), kSmall);
-
-  cv::Mat output_image_blue_mat = formats::MatView(&output_image_blue);
-  ImageFrame expected_image_blue(ImageFormat::SRGBA, kLarge, kSmall);
-  cv::Mat expected_image_blue_mat = formats::MatView(&expected_image_blue);
-  expected_image_blue_mat = cv::Scalar(128, 128, 0, 255);
-  cv::Rect rect((kLarge - kSmall) / 2, 0, kSmall, kSmall);
-  cv::rectangle(expected_image_blue_mat, rect, cv::Scalar(0, 0, 255, 255),
-                cv::FILLED);
-  EXPECT_EQ(cv::sum(cv::sum(output_image_blue_mat != expected_image_blue_mat)),
-            cv::Scalar(0));
-}
-
 }  // namespace
 }  // namespace mediapipe

mediapipe/calculators/image/segmentation_smoothing_calculator.cc

@@ -118,7 +118,7 @@ absl::Status SegmentationSmoothingCalculator::GetContract(
 
 #if !MEDIAPIPE_DISABLE_GPU
   MP_RETURN_IF_ERROR(mediapipe::GlCalculatorHelper::UpdateContract(
-      cc, /*request_gpu_as_optional=*/true));
+      cc, /*requesst_gpu_as_optional=*/true));
 #endif  // !MEDIAPIPE_DISABLE_GPU
 
   return absl::OkStatus();

mediapipe/calculators/image/warp_affine_calculator.cc

@@ -206,7 +206,7 @@ class WarpAffineCalculatorImpl : public mediapipe::api2::NodeImpl<InterfaceT> {
     if constexpr (std::is_same_v<InterfaceT, WarpAffineCalculatorGpu> ||
                   std::is_same_v<InterfaceT, WarpAffineCalculator>) {
       MP_RETURN_IF_ERROR(mediapipe::GlCalculatorHelper::UpdateContract(
-          cc, /*request_gpu_as_optional=*/true));
+          cc, /*requesst_gpu_as_optional=*/true));
     }
     return absl::OkStatus();
   }

mediapipe/calculators/image/warp_affine_calculator_test.cc

@@ -284,7 +284,7 @@ std::array<float, 16> GetMatrix(cv::Mat input, mediapipe::NormalizedRect roi,
       .IgnoreError();
   mediapipe::GetRotatedSubRectToRectTransformMatrix(
       roi_absolute, input.cols, input.rows,
-      /*flip_horizontally=*/false, &transform_mat);
+      /*flip_horizontaly=*/false, &transform_mat);
   return transform_mat;
 }
 

mediapipe/calculators/image/yuv_to_image_calculator.cc

@@ -49,7 +49,7 @@ std::string FourCCToString(libyuv::FourCC fourcc) {
 // The input `YUVImage` is expected to be in the NV12, NV21, YV12 or I420 (aka
 // YV21) format (as per the `fourcc()` property). This covers the most commonly
 // used YUV image formats used on mobile devices. Other formats are not
-// supported and will result in an `InvalidArgumentError`.
+// supported and wil result in an `InvalidArgumentError`.
 class YUVToImageCalculator : public Node {
  public:
   static constexpr Input<YUVImage> kInput{"YUV_IMAGE"};

mediapipe/calculators/tensor/BUILD

@@ -657,7 +657,6 @@ cc_library(
     }),
     deps = [
         ":tensor_converter_calculator_cc_proto",
-        ":tensor_converter_cpu",
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework:port",
         "//mediapipe/framework/formats:image_frame",
@@ -666,7 +665,6 @@ cc_library(
         "//mediapipe/framework/port:ret_check",
         "//mediapipe/framework/port:status",
         "//mediapipe/framework/port:statusor",
-        "//mediapipe/gpu:gpu_buffer",
         "//mediapipe/gpu:gpu_buffer_format",
         "//mediapipe/gpu:gpu_origin_cc_proto",
         "//mediapipe/util:resource_util",
@@ -676,17 +674,10 @@ cc_library(
         "@com_google_absl//absl/log:check",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
-        "@com_google_absl//absl/strings",
         "@com_google_absl//absl/strings:str_format",
     ] + select({
         "//mediapipe/gpu:disable_gpu": [],
-        "//conditions:default": [
-            "tensor_converter_calculator_gpu_deps",
-            "//mediapipe/gpu:gl_base",
-            "//mediapipe/gpu:gl_calculator_helper",
-            "//mediapipe/gpu:gl_simple_shaders",
-            "//mediapipe/gpu:shader_util",
-        ],
+        "//conditions:default": ["tensor_converter_calculator_gpu_deps"],
     }) + select({
         "//mediapipe:apple": [
             "//third_party/apple_frameworks:MetalKit",
@@ -696,35 +687,6 @@ cc_library(
     alwayslink = 1,
 )
 
-cc_library(
-    name = "tensor_converter_cpu",
-    srcs = ["tensor_converter_cpu.cc"],
-    hdrs = ["tensor_converter_cpu.h"],
-    deps = [
-        "//mediapipe/framework/formats:image_frame",
-        "//mediapipe/framework/formats:matrix",
-        "//mediapipe/framework/formats:tensor",
-        "//mediapipe/framework/port:ret_check",
-        "//mediapipe/framework/port:status",
-        "@com_google_absl//absl/status",
-        "@com_google_absl//absl/status:statusor",
-    ],
-)
-
-cc_test(
-    name = "tensor_converter_cpu_test",
-    srcs = ["tensor_converter_cpu_test.cc"],
-    deps = [
-        ":tensor_converter_cpu",
-        "//mediapipe/framework/formats:matrix",
-        "//mediapipe/framework/formats:tensor",
-        "//mediapipe/framework/port:gtest",
-        "//mediapipe/framework/port:gtest_main",
-        "//mediapipe/framework/port:status_matchers",
-        "//mediapipe/util:image_test_utils",
-    ],
-)
-
 cc_library(
     name = "tensor_converter_calculator_gpu_deps",
     visibility = ["//visibility:private"],
@@ -1452,8 +1414,6 @@ cc_library(
     }),
     deps = [
         ":tensors_to_segmentation_calculator_cc_proto",
-        ":tensors_to_segmentation_converter",
-        ":tensors_to_segmentation_utils",
         "//mediapipe/framework:calculator_context",
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework:port",
@@ -1461,11 +1421,9 @@ cc_library(
         "//mediapipe/framework/formats:image_frame",
         "//mediapipe/framework/formats:tensor",
         "//mediapipe/framework/port:ret_check",
-        "//mediapipe/framework/port:status",
         "//mediapipe/framework/port:statusor",
         "//mediapipe/gpu:gpu_origin_cc_proto",
         "//mediapipe/util:resource_util",
-        "@com_google_absl//absl/status",
         "@com_google_absl//absl/strings",
         "@com_google_absl//absl/strings:str_format",
         "@com_google_absl//absl/types:span",
@@ -1476,7 +1434,6 @@ cc_library(
             "//mediapipe/gpu:gl_calculator_helper",
             "//mediapipe/gpu:gl_simple_shaders",
             "//mediapipe/gpu:gpu_buffer",
-            "//mediapipe/gpu:gpu_buffer_format",
             "//mediapipe/gpu:shader_util",
         ],
     }) + selects.with_or({
@@ -1496,96 +1453,19 @@ cc_library(
     }) + select({
         "//mediapipe/framework/port:disable_opencv": [],
         "//conditions:default": [
-            ":tensors_to_segmentation_converter_opencv",
+            "//mediapipe/framework/formats:image_opencv",
+            "//mediapipe/framework/port:opencv_imgproc",
         ],
     }),
     alwayslink = 1,
 )
 
-cc_library(
-    name = "tensors_to_segmentation_utils",
-    srcs = ["tensors_to_segmentation_utils.cc"],
-    hdrs = ["tensors_to_segmentation_utils.h"],
-    deps = [
-        "//mediapipe/framework:port",
-        "//mediapipe/framework/port:ret_check",
-        "@com_google_absl//absl/status:statusor",
-    ],
-)
-
-cc_test(
-    name = "tensors_to_segmentation_utils_test",
-    srcs = ["tensors_to_segmentation_utils_test.cc"],
-    deps = [
-        ":tensors_to_segmentation_utils",
-        "//mediapipe/framework/port:gtest_main",
-        "//mediapipe/framework/port:status_matchers",
-        "@com_google_absl//absl/status:statusor",
-    ],
-)
-
-cc_library(
-    name = "tensors_to_segmentation_converter",
-    hdrs = ["tensors_to_segmentation_converter.h"],
-    deps = [
-        "//mediapipe/framework/formats:image",
-        "//mediapipe/framework/formats:tensor",
-        "@com_google_absl//absl/status:statusor",
-    ],
-)
-
-cc_library(
-    name = "tensors_to_segmentation_converter_opencv",
-    srcs = ["tensors_to_segmentation_converter_opencv.cc"],
-    hdrs = ["tensors_to_segmentation_converter_opencv.h"],
-    deps = [
-        ":tensors_to_segmentation_calculator_cc_proto",
-        ":tensors_to_segmentation_converter",
-        ":tensors_to_segmentation_utils",
-        "//mediapipe/framework/formats:image",
-        "//mediapipe/framework/formats:image_frame",
-        "//mediapipe/framework/formats:image_opencv",
-        "//mediapipe/framework/formats:tensor",
-        "//mediapipe/framework/port:opencv_core",
-        "//mediapipe/framework/port:opencv_imgproc",
-        "//mediapipe/framework/port:ret_check",
-        "//mediapipe/framework/port:status",
-        "@com_google_absl//absl/status",
-        "@com_google_absl//absl/status:statusor",
-    ],
-)
-
-cc_library(
-    name = "tensors_to_segmentation_calculator_test_utils",
-    testonly = 1,
-    srcs = ["tensors_to_segmentation_calculator_test_utils.cc"],
-    hdrs = ["tensors_to_segmentation_calculator_test_utils.h"],
-    deps = [
-        ":tensors_to_segmentation_calculator_cc_proto",
-        "//mediapipe/framework:calculator_cc_proto",
-        "//mediapipe/framework/port:parse_text_proto",
-        "@com_google_absl//absl/log:absl_log",
-        "@com_google_absl//absl/strings",
-    ],
-)
-
-cc_test(
-    name = "tensors_to_segmentation_calculator_test_utils_test",
-    srcs = ["tensors_to_segmentation_calculator_test_utils_test.cc"],
-    deps = [
-        ":tensors_to_segmentation_calculator_cc_proto",
-        ":tensors_to_segmentation_calculator_test_utils",
-        "//mediapipe/framework/port:gtest_main",
-    ],
-)
-
 cc_test(
     name = "tensors_to_segmentation_calculator_test",
     srcs = ["tensors_to_segmentation_calculator_test.cc"],
     deps = [
         ":tensors_to_segmentation_calculator",
         ":tensors_to_segmentation_calculator_cc_proto",
-        ":tensors_to_segmentation_calculator_test_utils",
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework:calculator_runner",
         "//mediapipe/framework:packet",
@@ -1596,6 +1476,10 @@ cc_test(
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/framework/formats:tensor",
         "//mediapipe/framework/port:gtest_main",
+        "//mediapipe/framework/port:parse_text_proto",
+        "@com_google_absl//absl/log",
+        "@com_google_absl//absl/log:absl_log",
+        "@com_google_absl//absl/strings",
     ],
 )
 

mediapipe/calculators/tensor/audio_to_tensor_calculator.cc

@@ -109,7 +109,7 @@ bool IsValidFftSize(int size) {
 //   Non-streaming mode: when "stream_mode" is set to false in the calculator
 //     options, the calculators treats the packets in the input audio stream as
 //     a batch of unrelated audio buffers. In each Process() call, the input
-//     buffer will be first resampled, and framed as fixed-sized, possibly
+//     buffer will be frist resampled, and framed as fixed-sized, possibly
 //     overlapping tensors. The last tensor produced by a Process() invocation
 //     will be zero-padding if the remaining samples are insufficient. As the
 //     calculator treats the input packets as unrelated, all samples will be
@@ -159,7 +159,7 @@ class AudioToTensorCalculator : public Node {
  public:
   static constexpr Input<Matrix> kAudioIn{"AUDIO"};
   // TODO: Removes this optional input stream when the "AUDIO" stream
-  // uses the new mediapipe audio data containers that carry audio metadata,
+  // uses the new mediapipe audio data containers that carry audio metatdata,
   // such as sample rate.
   static constexpr Input<double>::Optional kAudioSampleRateIn{"SAMPLE_RATE"};
   static constexpr Output<std::vector<Tensor>> kTensorsOut{"TENSORS"};

mediapipe/calculators/tensor/audio_to_tensor_calculator.proto

@@ -37,7 +37,7 @@ message AudioToTensorCalculatorOptions {
   // will be converted into tensors.
   optional double target_sample_rate = 4;
 
-  // Whether to treat the input audio stream as a continuous stream or a batch
+  // Whether to treat the input audio stream as a continous stream or a batch
   // of unrelated audio buffers.
   optional bool stream_mode = 5 [default = true];
 

mediapipe/calculators/tensor/image_to_tensor_calculator_test.cc

@@ -206,7 +206,7 @@ mediapipe::ImageFormat::Format GetImageFormat(int image_channels) {
   } else if (image_channels == 1) {
     return ImageFormat::GRAY8;
   }
-  ABSL_CHECK(false) << "Unsupported input image channels: " << image_channels;
+  ABSL_CHECK(false) << "Unsupported input image channles: " << image_channels;
 }
 
 Packet MakeImageFramePacket(cv::Mat input) {

mediapipe/calculators/tensor/tensor_converter_calculator.cc

@@ -14,7 +14,6 @@
 
 #include <cstdint>
 #include <string>
-#include <utility>
 #include <vector>
 
 #include "absl/log/absl_check.h"
@@ -22,22 +21,17 @@
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"
 #include "absl/strings/str_format.h"
-#include "absl/strings/substitute.h"
-#include "absl/types/optional.h"
 #include "mediapipe/calculators/tensor/tensor_converter_calculator.pb.h"
-#include "mediapipe/calculators/tensor/tensor_converter_cpu.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/formats/image_frame.h"
 #include "mediapipe/framework/formats/matrix.h"
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/framework/port.h"
 #include "mediapipe/framework/port/ret_check.h"
-#include "mediapipe/framework/port/status_macros.h"
 #include "mediapipe/gpu/gpu_buffer_format.h"
 #include "mediapipe/gpu/gpu_origin.pb.h"
 
 #if !MEDIAPIPE_DISABLE_GPU
-#include "mediapipe/gpu/gl_base.h"
 #include "mediapipe/gpu/gpu_buffer.h"
 #if MEDIAPIPE_METAL_ENABLED
 #import <CoreVideo/CoreVideo.h>
@@ -100,13 +94,16 @@ absl::StatusOr<bool> ShouldFlipVertically(
   }
 }
 
+typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>
+    RowMajorMatrixXf;
+typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::ColMajor>
+    ColMajorMatrixXf;
+
 constexpr char kImageFrameTag[] = "IMAGE";
 constexpr char kGpuBufferTag[] = "IMAGE_GPU";
 constexpr char kTensorsTag[] = "TENSORS";
 constexpr char kMatrixTag[] = "MATRIX";
 
-constexpr std::pair<float, float> kDefaultOutputRange = {0.0f, 1.0f};
-
 }  // namespace
 
 namespace mediapipe {
@@ -159,6 +156,10 @@ class TensorConverterCalculator : public CalculatorBase {
  private:
   absl::Status InitGpu(CalculatorContext* cc);
   absl::Status LoadOptions(CalculatorContext* cc, bool use_gpu);
+  template <class T>
+  absl::Status NormalizeImage(const ImageFrame& image_frame,
+                              bool flip_vertically, float* tensor_ptr);
+  absl::Status CopyMatrixToTensor(const Matrix& matrix, float* tensor_ptr);
   absl::Status ProcessCPU(CalculatorContext* cc);
   absl::Status ProcessGPU(CalculatorContext* cc);
 
@@ -278,21 +279,46 @@ absl::Status TensorConverterCalculator::ProcessCPU(CalculatorContext* cc) {
     }
     const auto& image_frame =
         cc->Inputs().Tag(kImageFrameTag).Get<ImageFrame>();
-    MP_ASSIGN_OR_RETURN(Tensor output,
-                        ConvertImageFrameToTensorOnCpu(
-                            image_frame,
-                            output_range_.has_value() ? output_range_.value()
-                                                      : kDefaultOutputRange,
-                            flip_vertically_, max_num_channels_));
-    output_tensors->emplace_back(std::move(output));
+    const int height = image_frame.Height();
+    const int width = image_frame.Width();
+    const int channels = image_frame.NumberOfChannels();
+    const int channels_preserved = std::min(channels, max_num_channels_);
+    const mediapipe::ImageFormat::Format format = image_frame.Format();
+
+    if (!(format == mediapipe::ImageFormat::SRGBA ||
+          format == mediapipe::ImageFormat::SRGB ||
+          format == mediapipe::ImageFormat::GRAY8 ||
+          format == mediapipe::ImageFormat::VEC32F1))
+      RET_CHECK_FAIL() << "Unsupported CPU input format.";
+
+    output_tensors->emplace_back(
+        Tensor::ElementType::kFloat32,
+        Tensor::Shape{1, height, width, channels_preserved});
+    auto cpu_view = output_tensors->back().GetCpuWriteView();
+
+    // Copy image data into tensor.
+    if (image_frame.ByteDepth() == 1) {
+      MP_RETURN_IF_ERROR(NormalizeImage<uint8_t>(image_frame, flip_vertically_,
+                                                 cpu_view.buffer<float>()));
+    } else if (image_frame.ByteDepth() == 4) {
+      MP_RETURN_IF_ERROR(NormalizeImage<float>(image_frame, flip_vertically_,
+                                               cpu_view.buffer<float>()));
+    } else {
+      return absl::InternalError(
+          "Only byte-based (8 bit) and float (32 bit) images supported.");
+    }
   } else if (cc->Inputs().HasTag(kMatrixTag)) {
     if (cc->Inputs().Tag(kMatrixTag).IsEmpty()) {
       return absl::OkStatus();
     }
     const auto& matrix = cc->Inputs().Tag(kMatrixTag).Get<Matrix>();
-    MP_ASSIGN_OR_RETURN(Tensor output,
-                        ConvertMatrixToTensorOnCpu(matrix, row_major_matrix_));
-    output_tensors->emplace_back(std::move(output));
+    const int height = matrix.rows();
+    const int width = matrix.cols();
+    const int channels = 1;
+    output_tensors->emplace_back(Tensor::ElementType::kFloat32,
+                                 Tensor::Shape{1, height, width, channels});
+    MP_RETURN_IF_ERROR(CopyMatrixToTensor(
+        matrix, output_tensors->back().GetCpuWriteView().buffer<float>()));
   } else {
     return absl::OkStatus();
   }
@@ -643,4 +669,67 @@ absl::Status TensorConverterCalculator::LoadOptions(CalculatorContext* cc,
   return absl::OkStatus();
 }
 
+template <class T>
+absl::Status TensorConverterCalculator::NormalizeImage(
+    const ImageFrame& image_frame, bool flip_vertically, float* tensor_ptr) {
+  const int height = image_frame.Height();
+  const int width = image_frame.Width();
+  const int channels = image_frame.NumberOfChannels();
+  const int channels_preserved = std::min(channels, max_num_channels_);
+  const int channels_ignored = channels - channels_preserved;
+
+  if (output_range_.has_value()) {
+    // If the output float range is set and we are not using custom
+    // normalization, normalize the pixel values from [0, 255] to the specified
+    // output range.
+    RET_CHECK_NE(output_range_->first, output_range_->second);
+    const float scale = (output_range_->second - output_range_->first) / 255.0f;
+    const float bias = output_range_->first;
+
+    for (int i = 0; i < height; ++i) {
+      const T* image_ptr = reinterpret_cast<const T*>(
+          image_frame.PixelData() +
+          (flip_vertically ? height - 1 - i : i) * image_frame.WidthStep());
+      for (int j = 0; j < width; ++j) {
+        for (int c = 0; c < channels_preserved; ++c) {
+          *tensor_ptr++ = *image_ptr++ * scale + bias;
+        }
+        image_ptr += channels_ignored;
+      }
+    }
+  } else {
+    // [0,1], scale only (bias == 0)
+    // Verified that there are no precision issues with 1.0f / 255.0f expression
+    const float scale = 1.0f / 255.0f;
+    for (int i = 0; i < height; ++i) {
+      const T* image_ptr = reinterpret_cast<const T*>(
+          image_frame.PixelData() +
+          (flip_vertically ? height - 1 - i : i) * image_frame.WidthStep());
+      for (int j = 0; j < width; ++j) {
+        for (int c = 0; c < channels_preserved; ++c) {
+          *tensor_ptr++ = *image_ptr++ * scale;
+        }
+        image_ptr += channels_ignored;
+      }
+    }
+  }
+
+  return absl::OkStatus();
+}
+
+absl::Status TensorConverterCalculator::CopyMatrixToTensor(const Matrix& matrix,
+                                                           float* tensor_ptr) {
+  if (row_major_matrix_) {
+    auto matrix_map =
+        Eigen::Map<RowMajorMatrixXf>(tensor_ptr, matrix.rows(), matrix.cols());
+    matrix_map = matrix;
+  } else {
+    auto matrix_map =
+        Eigen::Map<ColMajorMatrixXf>(tensor_ptr, matrix.rows(), matrix.cols());
+    matrix_map = matrix;
+  }
+
+  return absl::OkStatus();
+}
+
 }  // namespace mediapipe

mediapipe/calculators/tensor/tensor_converter_calculator_test.cc

@@ -321,61 +321,6 @@ TEST_F(TensorConverterCalculatorTest, SetOutputRange) {
   }
 }
 
-TEST_F(TensorConverterCalculatorTest,
-       ShouldConvertImageWithDefaultOutputRange) {
-  CalculatorGraph graph;
-  CalculatorGraphConfig graph_config =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(
-          R"pb(
-            input_stream: "input_image"
-            node {
-              calculator: "TensorConverterCalculator"
-              input_stream: "IMAGE:input_image"
-              output_stream: "TENSORS:tensor"
-              options {
-                [mediapipe.TensorConverterCalculatorOptions.ext] {
-                  zero_center: false
-                }
-              }
-            }
-          )pb");
-  std::vector<Packet> output_packets;
-  tool::AddVectorSink("tensor", &graph_config, &output_packets);
-
-  // Run the graph.
-  MP_ASSERT_OK(graph.Initialize(graph_config));
-  MP_ASSERT_OK(graph.StartRun({}));
-  auto input_image = std::make_unique<ImageFrame>(ImageFormat::GRAY8, 1, 1);
-  cv::Mat mat = mediapipe::formats::MatView(input_image.get());
-  mat.at<uint8_t>(0, 0) = 200;
-  MP_ASSERT_OK(graph.AddPacketToInputStream(
-      "input_image", Adopt(input_image.release()).At(Timestamp(0))));
-
-  // Wait until the calculator finishes processing.
-  MP_ASSERT_OK(graph.WaitUntilIdle());
-  ASSERT_EQ(output_packets.size(), 1);
-
-  // Get and process results.
-  const std::vector<Tensor>& tensor_vec =
-      output_packets[0].Get<std::vector<Tensor>>();
-  ASSERT_EQ(tensor_vec.size(), 1);
-
-  const Tensor* tensor = &tensor_vec[0];
-
-  // Calculate the expected normalized value:
-  float expected_value = 200.0 / 255.0;
-
-  EXPECT_EQ(tensor->element_type(), Tensor::ElementType::kFloat32);
-  auto view = tensor->GetCpuReadView();
-  float actual_value = *view.buffer<float>();
-  EXPECT_FLOAT_EQ(actual_value, expected_value);
-
-  // Fully close graph at end, otherwise calculator+tensors are destroyed
-  // after calling WaitUntilDone().
-  MP_ASSERT_OK(graph.CloseInputStream("input_image"));
-  MP_ASSERT_OK(graph.WaitUntilDone());
-}
-
 TEST_F(TensorConverterCalculatorTest, FlipVertically) {
   CalculatorGraph graph;
   CalculatorGraphConfig graph_config =

mediapipe/calculators/tensor/tensor_converter_cpu.cc

@@ -1,145 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensor_converter_cpu.h"
-
-#include <algorithm>
-#include <cstdint>
-#include <utility>
-
-#include "absl/status/status.h"
-#include "absl/status/statusor.h"
-#include "mediapipe/framework/formats/image_frame.h"
-#include "mediapipe/framework/formats/matrix.h"
-#include "mediapipe/framework/formats/tensor.h"
-#include "mediapipe/framework/port/ret_check.h"
-#include "mediapipe/framework/port/status_macros.h"
-
-namespace mediapipe {
-namespace {
-
-typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>
-    RowMajorMatrixXf;
-typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::ColMajor>
-    ColMajorMatrixXf;
-
-template <class T>
-absl::Status NormalizeImage(const ImageFrame& image_frame, bool flip_vertically,
-                            const std::pair<float, float>& output_range,
-                            int max_num_channels, float* tensor_ptr) {
-  const int height = image_frame.Height();
-  const int width = image_frame.Width();
-  const int channels = image_frame.NumberOfChannels();
-  const int channels_preserved = std::min(channels, max_num_channels);
-  const int channels_ignored = channels - channels_preserved;
-
-  RET_CHECK_NE(output_range.first, output_range.second);
-  const float scale = (output_range.second - output_range.first) / 255.0f;
-  const float bias = output_range.first;
-
-  for (int i = 0; i < height; ++i) {
-    const T* image_ptr = reinterpret_cast<const T*>(
-        image_frame.PixelData() +
-        (flip_vertically ? height - 1 - i : i) * image_frame.WidthStep());
-    for (int j = 0; j < width; ++j) {
-      for (int c = 0; c < channels_preserved; ++c) {
-        *tensor_ptr++ = *image_ptr++ * scale + bias;
-      }
-      image_ptr += channels_ignored;
-    }
-  }
-  return absl::OkStatus();
-}
-
-}  // namespace
-
-absl::Status NormalizeUInt8Image(const ImageFrame& image_frame,
-                                 bool flip_vertically,
-                                 const std::pair<float, float>& output_range,
-                                 int max_num_channels, float* tensor_ptr) {
-  return NormalizeImage<uint8_t>(image_frame, flip_vertically, output_range,
-                                 max_num_channels, tensor_ptr);
-}
-
-absl::Status NormalizeFloatImage(const ImageFrame& image_frame,
-                                 bool flip_vertically,
-                                 const std::pair<float, float>& output_range,
-                                 int max_num_channels, float* tensor_ptr) {
-  return NormalizeImage<float>(image_frame, flip_vertically, output_range,
-                               max_num_channels, tensor_ptr);
-}
-
-absl::Status CopyMatrixToTensor(const Matrix& matrix, bool is_row_major_matrix,
-                                float* tensor_ptr) {
-  if (is_row_major_matrix) {
-    auto matrix_map =
-        Eigen::Map<RowMajorMatrixXf>(tensor_ptr, matrix.rows(), matrix.cols());
-    matrix_map = matrix;
-  } else {
-    auto matrix_map =
-        Eigen::Map<ColMajorMatrixXf>(tensor_ptr, matrix.rows(), matrix.cols());
-    matrix_map = matrix;
-  }
-  return absl::OkStatus();
-}
-
-absl::StatusOr<Tensor> ConvertImageFrameToTensorOnCpu(
-    const ImageFrame& image_frame, const std::pair<float, float>& output_range,
-    bool flip_vertically, int max_num_channels) {
-  const int height = image_frame.Height();
-  const int width = image_frame.Width();
-  const int channels = image_frame.NumberOfChannels();
-  const int channels_preserved = std::min(channels, max_num_channels);
-  const mediapipe::ImageFormat::Format format = image_frame.Format();
-
-  if (!(format == mediapipe::ImageFormat::SRGBA ||
-        format == mediapipe::ImageFormat::SRGB ||
-        format == mediapipe::ImageFormat::GRAY8 ||
-        format == mediapipe::ImageFormat::VEC32F1))
-    RET_CHECK_FAIL() << "Unsupported CPU input format.";
-
-  Tensor output_tensor(Tensor::ElementType::kFloat32,
-                       Tensor::Shape{1, height, width, channels_preserved});
-  auto cpu_view = output_tensor.GetCpuWriteView();
-
-  // Copy image data into tensor.
-  if (image_frame.ByteDepth() == 1) {
-    MP_RETURN_IF_ERROR(NormalizeUInt8Image(image_frame, flip_vertically,
-                                           output_range, max_num_channels,
-                                           cpu_view.buffer<float>()));
-  } else if (image_frame.ByteDepth() == 4) {
-    MP_RETURN_IF_ERROR(NormalizeFloatImage(image_frame, flip_vertically,
-                                           output_range, max_num_channels,
-                                           cpu_view.buffer<float>()));
-  } else {
-    return absl::InternalError(
-        "Only byte-based (8 bit) and float (32 bit) images supported.");
-  }
-  return output_tensor;
-}
-
-absl::StatusOr<Tensor> ConvertMatrixToTensorOnCpu(const Matrix& matrix,
-                                                  bool row_major_matrix) {
-  const int height = matrix.rows();
-  const int width = matrix.cols();
-  const int channels = 1;
-  Tensor output_tensor(Tensor::ElementType::kFloat32,
-                       Tensor::Shape{1, height, width, channels});
-  MP_RETURN_IF_ERROR(
-      CopyMatrixToTensor(matrix, row_major_matrix,
-                         output_tensor.GetCpuWriteView().buffer<float>()));
-  return output_tensor;
-}
-
-}  // namespace mediapipe

mediapipe/calculators/tensor/tensor_converter_cpu.h

@@ -1,61 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef MEDIAPIPE_CALCULATORS_TENSOR_TENSOR_CONVERTER_CPU_H_
-#define MEDIAPIPE_CALCULATORS_TENSOR_TENSOR_CONVERTER_CPU_H_
-
-#include <utility>
-
-#include "absl/status/status.h"
-#include "absl/status/statusor.h"
-#include "mediapipe/framework/formats/image_frame.h"
-#include "mediapipe/framework/formats/matrix.h"
-#include "mediapipe/framework/formats/tensor.h"
-
-namespace mediapipe {
-
-// Converts an ImageFrame to a vector of Tensors.
-// @flip_vertically enables to flip the image during conversion.
-// @max_num_channels can be used to reserve extra channels in the output
-// tensors.
-// Returns output Tensor.
-absl::StatusOr<Tensor> ConvertImageFrameToTensorOnCpu(
-    const ImageFrame& image_frame, const std::pair<float, float>& output_range,
-    bool flip_vertically, int max_num_channels);
-
-// Converts a Matrix to a vector of Tensors.
-// @row_major_matrix defines the ordering in the input matrix.
-// @max_num_channels can be used to reserve extra channels in the output
-// tensors.
-// Returns output Tensor.
-absl::StatusOr<Tensor> ConvertMatrixToTensorOnCpu(const Matrix& matrix,
-                                                  bool row_major_matrix);
-
-// For testing only below.
-absl::Status NormalizeUInt8Image(const ImageFrame& image_frame,
-                                 bool flip_vertically,
-                                 const std::pair<float, float>& output_range,
-                                 int max_num_channels, float* tensor_ptr);
-
-absl::Status NormalizeFloatImage(const ImageFrame& image_frame,
-                                 bool flip_vertically,
-                                 const std::pair<float, float>& output_range,
-                                 int max_num_channels, float* tensor_ptr);
-
-absl::Status CopyMatrixToTensor(const Matrix& matrix, bool is_row_major_matrix,
-                                float* tensor_ptr);
-
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_CALCULATORS_TENSOR_TENSOR_CONVERTER_CPU_H_

mediapipe/calculators/tensor/tensor_converter_cpu_test.cc

@@ -1,175 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensor_converter_cpu.h"
-
-#include <cstdint>
-#include <utility>
-#include <vector>
-
-#include "mediapipe/framework/formats/matrix.h"
-#include "mediapipe/framework/formats/tensor.h"
-#include "mediapipe/framework/port/gmock.h"
-#include "mediapipe/framework/port/gtest.h"
-#include "mediapipe/framework/port/status_matchers.h"
-#include "mediapipe/util/image_test_utils.h"
-
-namespace mediapipe {
-namespace {
-
-Matrix CreateTestMatrix(int num_rows, int num_columns) {
-  Matrix matrix(num_rows, num_columns);
-  for (int r = 0; r < num_rows; ++r) {
-    for (int c = 0; c < num_columns; ++c) {
-      matrix(r, c) = r * num_columns + c;
-    }
-  }
-  return matrix;
-}
-
-TEST(TensorConverterCpuTest, ShouldCopyMatrixInRowMajorFormatToTensor) {
-  auto test_matrix = CreateTestMatrix(/* num_rows=*/3, /*num_columns=*/4);
-  std::vector<float> tensor_data(test_matrix.size(), 0.0f);
-
-  MP_EXPECT_OK(CopyMatrixToTensor(test_matrix, /*is_row_major_matrix=*/true,
-                                  tensor_data.data()));
-
-  for (int i = 0; i < tensor_data.size(); ++i) {
-    const int row = i / test_matrix.cols();
-    const int column = i % test_matrix.cols();
-    EXPECT_FLOAT_EQ(tensor_data[i], (test_matrix)(row, column));
-  }
-}
-
-TEST(TensorConverterCpuTest, ShouldCopyMatrixInColumnMajorFormatToTensor) {
-  auto test_matrix = CreateTestMatrix(/*num_rows=*/3, /*num_columns=*/4);
-  std::vector<float> tensor_data(test_matrix.size(), 0.0f);
-
-  MP_EXPECT_OK(CopyMatrixToTensor(test_matrix, /*is_row_major_matrix=*/false,
-                                  tensor_data.data()));
-
-  for (int i = 0; i < tensor_data.size(); ++i) {
-    const int row = i % test_matrix.rows();
-    const int column = i / test_matrix.rows();
-    EXPECT_FLOAT_EQ(tensor_data[i], (test_matrix)(row, column));
-  }
-}
-
-TEST(TensorConverterCpuTest, ShouldNormalizeGrey8ImageWithDefaultRange) {
-  auto grey8_image_frame = CreateTestGrey8ImageFrame(/*width=*/3, /*height=*/4);
-  std::vector<float> tensor_data(
-      grey8_image_frame.Width() * grey8_image_frame.Height(), 0.0f);
-
-  MP_EXPECT_OK(NormalizeUInt8Image(grey8_image_frame, /*flip_vertically=*/false,
-                                   {0.0f, 1.0f}, /*num_tensor_channels=*/1,
-                                   tensor_data.data()));
-
-  for (int i = 0; i < tensor_data.size(); ++i) {
-    EXPECT_FLOAT_EQ(
-        tensor_data[i],
-        static_cast<uint8_t>(grey8_image_frame.PixelData()[i]) / 255.0f);
-  }
-}
-
-TEST(TensorConverterCpuTest, ShouldNormalizeGrey8ImageWithSpecifiedRange) {
-  auto grey8_image_frame = CreateTestGrey8ImageFrame(/*width=*/3, /*height=*/4);
-  std::vector<float> tensor_data(
-      grey8_image_frame.Width() * grey8_image_frame.Height(), 0.0f);
-  const auto range = std::make_pair(2.0f, 3.0f);
-
-  MP_EXPECT_OK(
-      NormalizeUInt8Image(grey8_image_frame, /*flip_vertically=*/false, range,
-                          /*num_tensor_channels=*/1, tensor_data.data()));
-
-  for (int i = 0; i < tensor_data.size(); ++i) {
-    EXPECT_FLOAT_EQ(tensor_data[i],
-                    static_cast<uint8_t>(grey8_image_frame.PixelData()[i]) /
-                            255.0f * (range.second - range.first) +
-                        range.first);
-  }
-}
-
-TEST(TensorConverterCpuTest, ShouldNormalizeGrey8ImageFlipped) {
-  auto grey8_image_frame = CreateTestGrey8ImageFrame(/*width=*/3, /*height=*/4);
-  std::vector<float> tensor_data(
-      grey8_image_frame.Width() * grey8_image_frame.Height(), 0.0f);
-
-  MP_EXPECT_OK(NormalizeUInt8Image(grey8_image_frame, /*flip_vertically=*/true,
-                                   {0.0f, 1.0f}, /*num_tensor_channels=*/1,
-                                   tensor_data.data()));
-
-  for (int i = 0; i < tensor_data.size(); ++i) {
-    const int x = i % grey8_image_frame.Width();
-    const int y = i / grey8_image_frame.Width();
-    const int flipped_y = grey8_image_frame.Height() - y - 1;
-
-    const int index = flipped_y * grey8_image_frame.Width() + x;
-    EXPECT_FLOAT_EQ(
-        tensor_data[index],
-        static_cast<uint8_t>(grey8_image_frame.PixelData()[i]) / 255.0f);
-  }
-}
-
-TEST(TensorConverterCpuTest, ShouldNormalizeFloatImageWithDefaultRange) {
-  auto float_image_frame =
-      CreateTestFloat32ImageFrame(/*width=*/3, /*height=*/4);
-  std::vector<float> tensor_data(
-      float_image_frame.Width() * float_image_frame.Height(), 0.0f);
-
-  MP_EXPECT_OK(NormalizeFloatImage(float_image_frame, /*flip_vertically=*/false,
-                                   {0.0f, 1.0f}, /*num_tensor_channels=*/1,
-                                   tensor_data.data()));
-
-  for (int i = 0; i < tensor_data.size(); ++i) {
-    EXPECT_FLOAT_EQ(tensor_data[i], reinterpret_cast<const float*>(
-                                        float_image_frame.PixelData())[i] /
-                                        255.0f);
-  }
-}
-
-TEST(TensorConverterCpuTest, ConvertImageFrameToTensorOnCpu) {
-  auto grey8_image_frame = CreateTestGrey8ImageFrame(/*width=*/3, /*height=*/4);
-
-  MP_ASSERT_OK_AND_ASSIGN(Tensor output, ConvertImageFrameToTensorOnCpu(
-                                             grey8_image_frame, {0.0f, 1.0f},
-                                             /*flip_vertically=*/false,
-                                             /*max_num_channels=*/1));
-
-  const auto cpu_read_view = output.GetCpuReadView();
-  const float* tensor_ptr = cpu_read_view.buffer<float>();
-  for (int i = 0; i < grey8_image_frame.Width() * grey8_image_frame.Height();
-       ++i) {
-    EXPECT_FLOAT_EQ(
-        tensor_ptr[i],
-        static_cast<uint8_t>(grey8_image_frame.PixelData()[i]) / 255.0);
-  }
-}
-
-TEST(TensorConverterCpuTest, ConvertMatrixToTensorOnCpu) {
-  auto test_matrix = CreateTestMatrix(/*num_rows=*/3, /*num_columns=*/4);
-
-  MP_ASSERT_OK_AND_ASSIGN(
-      Tensor output, ConvertMatrixToTensorOnCpu(test_matrix,
-                                                /*row_major_matrix=*/false));
-
-  const auto cpu_read_view = output.GetCpuReadView();
-  const float* tensor_ptr = cpu_read_view.buffer<float>();
-  for (int i = 0; i < test_matrix.size(); ++i) {
-    EXPECT_FLOAT_EQ(tensor_ptr[i], test_matrix.data()[i]);
-  }
-}
-
-}  // namespace
-
-}  // namespace mediapipe

mediapipe/calculators/tensor/tensors_to_detections_calculator.cc

@@ -879,6 +879,13 @@ absl::Status TensorsToDetectionsCalculator::ConvertToDetections(
     if (max_results_ > 0 && output_detections->size() == max_results_) {
       break;
     }
+    if (options_.has_min_score_thresh() &&
+        detection_scores[i] < options_.min_score_thresh()) {
+      continue;
+    }
+    if (!IsClassIndexAllowed(detection_classes[i])) {
+      continue;
+    }
     const int box_offset = i * num_coords_;
     Detection detection = ConvertToDetection(
         /*box_ymin=*/detection_boxes[box_offset + box_indices_[0]],
@@ -888,11 +895,6 @@ absl::Status TensorsToDetectionsCalculator::ConvertToDetections(
         absl::MakeConstSpan(detection_scores + i, classes_per_detection_),
         absl::MakeConstSpan(detection_classes + i, classes_per_detection_),
         options_.flip_vertically());
-    // if all the scores and classes are filtered out, we skip the empty
-    // detection.
-    if (detection.score().empty()) {
-      continue;
-    }
     const auto& bbox = detection.location_data().relative_bounding_box();
     if (bbox.width() < 0 || bbox.height() < 0 || std::isnan(bbox.width()) ||
         std::isnan(bbox.height())) {
@@ -930,10 +932,6 @@ Detection TensorsToDetectionsCalculator::ConvertToDetection(
     if (!IsClassIndexAllowed(class_ids[i])) {
       continue;
     }
-    if (options_.has_min_score_thresh() &&
-        scores[i] < options_.min_score_thresh()) {
-      continue;
-    }
     detection.add_score(scores[i]);
     detection.add_label_id(class_ids[i]);
   }

mediapipe/calculators/tensor/tensors_to_landmarks_calculator.cc

@@ -124,7 +124,7 @@ absl::Status TensorsToLandmarksCalculator::Open(CalculatorContext* cc) {
        kFlipVertically(cc).IsConnected())) {
     RET_CHECK(options_.has_input_image_height() &&
               options_.has_input_image_width())
-        << "Must provide input width/height for using flipping when outputting "
+        << "Must provide input width/height for using flipping when outputing "
            "landmarks in absolute coordinates.";
   }
   return absl::OkStatus();

mediapipe/calculators/tensor/tensors_to_segmentation_calculator.cc

@@ -12,35 +12,32 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <memory>
-#include <string>
-#include <tuple>
-#include <utility>
 #include <vector>
 
-#include "absl/status/status.h"
-#include "absl/strings/str_cat.h"
+#include "absl/strings/str_format.h"
+#include "absl/types/span.h"
 #include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_converter.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_utils.h"
 #include "mediapipe/framework/calculator_context.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/formats/image.h"
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/framework/port.h"
 #include "mediapipe/framework/port/ret_check.h"
-#include "mediapipe/framework/port/status_macros.h"
+#include "mediapipe/framework/port/statusor.h"
 #include "mediapipe/gpu/gpu_origin.pb.h"
+#include "mediapipe/util/resource_util.h"
+#include "tensorflow/lite/interpreter.h"
 
 #if !MEDIAPIPE_DISABLE_GPU
 #include "mediapipe/gpu/gl_calculator_helper.h"
 #include "mediapipe/gpu/gl_simple_shaders.h"
-#include "mediapipe/gpu/gpu_buffer_format.h"
+#include "mediapipe/gpu/gpu_buffer.h"
 #include "mediapipe/gpu/shader_util.h"
 #endif  // !MEDIAPIPE_DISABLE_GPU
 
 #if !MEDIAPIPE_DISABLE_OPENCV
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_converter_opencv.h"
+#include "mediapipe/framework/formats/image_opencv.h"
+#include "mediapipe/framework/port/opencv_imgproc_inc.h"
 #endif  // !MEDIAPIPE_DISABLE_OPENCV
 
 #if MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_31
@@ -65,9 +62,37 @@ namespace {
 constexpr int kWorkgroupSize = 8;  // Block size for GPU shader.
 enum { ATTRIB_VERTEX, ATTRIB_TEXTURE_POSITION, NUM_ATTRIBUTES };
 
+// Commonly used to compute the number of blocks to launch in a kernel.
+int NumGroups(const int size, const int group_size) {  // NOLINT
+  return (size + group_size - 1) / group_size;
+}
+
+bool CanUseGpu() {
+#if !MEDIAPIPE_DISABLE_GPU || MEDIAPIPE_METAL_ENABLED
+  // TODO: Configure GPU usage policy in individual calculators.
+  constexpr bool kAllowGpuProcessing = true;
+  return kAllowGpuProcessing;
+#else
+  return false;
+#endif  // !MEDIAPIPE_DISABLE_GPU || MEDIAPIPE_METAL_ENABLED
+}
+
 constexpr char kTensorsTag[] = "TENSORS";
 constexpr char kOutputSizeTag[] = "OUTPUT_SIZE";
 constexpr char kMaskTag[] = "MASK";
+
+absl::StatusOr<std::tuple<int, int, int>> GetHwcFromDims(
+    const std::vector<int>& dims) {
+  if (dims.size() == 3) {
+    return std::make_tuple(dims[0], dims[1], dims[2]);
+  } else if (dims.size() == 4) {
+    // BHWC format check B == 1
+    RET_CHECK_EQ(1, dims[0]) << "Expected batch to be 1 for BHWC heatmap";
+    return std::make_tuple(dims[1], dims[2], dims[3]);
+  } else {
+    RET_CHECK(false) << "Invalid shape for segmentation tensor " << dims.size();
+  }
+}
 }  // namespace
 
 namespace mediapipe {
@@ -131,28 +156,19 @@ class TensorsToSegmentationCalculator : public CalculatorBase {
  private:
   absl::Status LoadOptions(CalculatorContext* cc);
   absl::Status InitGpu(CalculatorContext* cc);
-  absl::Status ProcessGpu(CalculatorContext* cc,
-                          const std::vector<Tensor>& input_tensors,
-                          std::tuple<int, int, int> hwc, int output_width,
-                          int output_height);
+  absl::Status ProcessGpu(CalculatorContext* cc);
+  absl::Status ProcessCpu(CalculatorContext* cc);
   void GlRender();
 
   bool DoesGpuTextureStartAtBottom() {
     return options_.gpu_origin() != mediapipe::GpuOrigin_Mode_TOP_LEFT;
   }
-  absl::Status InitConverterIfNecessary() {
-#if !MEDIAPIPE_DISABLE_OPENCV
-    if (!cpu_converter_) {
-      MP_ASSIGN_OR_RETURN(cpu_converter_, CreateOpenCvConverter(options_));
-    }
-#else
-    RET_CHECK_FAIL() << "OpenCV processing disabled.";
-#endif  // !MEDIAPIPE_DISABLE_OPENCV
-    return absl::OkStatus();
-  }
 
-  mediapipe::TensorsToSegmentationCalculatorOptions options_;
-  std::unique_ptr<TensorsToSegmentationConverter> cpu_converter_;
+#if !MEDIAPIPE_DISABLE_OPENCV
+  template <class T>
+  absl::Status ApplyActivation(cv::Mat& tensor_mat, cv::Mat* small_mask_mat);
+#endif  // !MEDIAPIPE_DISABLE_OPENCV
+  ::mediapipe::TensorsToSegmentationCalculatorOptions options_;
 
 #if !MEDIAPIPE_DISABLE_GPU
   mediapipe::GlCalculatorHelper gpu_helper_;
@@ -245,7 +261,7 @@ absl::Status TensorsToSegmentationCalculator::Process(CalculatorContext* cc) {
     MP_ASSIGN_OR_RETURN(auto hwc,
                         GetHwcFromDims(input_tensors[0].shape().dims));
     int tensor_channels = std::get<2>(hwc);
-    using Options = ::mediapipe::TensorsToSegmentationCalculatorOptions;
+    typedef mediapipe::TensorsToSegmentationCalculatorOptions Options;
     switch (options_.activation()) {
       case Options::NONE:
         RET_CHECK_EQ(tensor_channels, 1);
@@ -259,17 +275,6 @@ absl::Status TensorsToSegmentationCalculator::Process(CalculatorContext* cc) {
     }
   }
 
-  // Get dimensions.
-  MP_ASSIGN_OR_RETURN(auto hwc, GetHwcFromDims(input_tensors[0].shape().dims));
-  auto [tensor_height, tensor_width, tensor_channels] = hwc;
-  int output_width = tensor_width, output_height = tensor_height;
-  if (cc->Inputs().HasTag(kOutputSizeTag)) {
-    const auto& size =
-        cc->Inputs().Tag(kOutputSizeTag).Get<std::pair<int, int>>();
-    output_width = size.first;
-    output_height = size.second;
-  }
-
   if (use_gpu) {
 #if !MEDIAPIPE_DISABLE_GPU
     if (!gpu_initialized_) {
@@ -281,25 +286,16 @@ absl::Status TensorsToSegmentationCalculator::Process(CalculatorContext* cc) {
 #endif  // !MEDIAPIPE_DISABLE_GPU
 
 #if !MEDIAPIPE_DISABLE_GPU
-    MP_RETURN_IF_ERROR(
-        gpu_helper_.RunInGlContext([this, cc, &input_tensors, output_width,
-                                    output_height, hwc]() -> absl::Status {
-          MP_RETURN_IF_ERROR(
-              ProcessGpu(cc, input_tensors, hwc, output_width, output_height));
-          return absl::OkStatus();
-        }));
+    MP_RETURN_IF_ERROR(gpu_helper_.RunInGlContext([this, cc]() -> absl::Status {
+      MP_RETURN_IF_ERROR(ProcessGpu(cc));
+      return absl::OkStatus();
+    }));
 #else
     RET_CHECK_FAIL() << "GPU processing disabled.";
 #endif  // !MEDIAPIPE_DISABLE_GPU
   } else {
 #if !MEDIAPIPE_DISABLE_OPENCV
-    // Lazily initialize converter.
-    MP_RETURN_IF_ERROR(InitConverterIfNecessary());
-    MP_ASSIGN_OR_RETURN(
-        std::unique_ptr<Image> output_mask,
-        cpu_converter_->Convert(input_tensors, output_width, output_height));
-    cc->Outputs().Tag(kMaskTag).Add(output_mask.release(),
-                                    cc->InputTimestamp());
+    MP_RETURN_IF_ERROR(ProcessCpu(cc));
 #else
     RET_CHECK_FAIL() << "OpenCV processing disabled.";
 #endif  // !MEDIAPIPE_DISABLE_OPENCV
@@ -333,15 +329,132 @@ absl::Status TensorsToSegmentationCalculator::Close(CalculatorContext* cc) {
   return absl::OkStatus();
 }
 
+absl::Status TensorsToSegmentationCalculator::ProcessCpu(
+    CalculatorContext* cc) {
+#if !MEDIAPIPE_DISABLE_OPENCV
+  // Get input streams, and dimensions.
+  const auto& input_tensors =
+      cc->Inputs().Tag(kTensorsTag).Get<std::vector<Tensor>>();
+  MP_ASSIGN_OR_RETURN(auto hwc, GetHwcFromDims(input_tensors[0].shape().dims));
+  auto [tensor_height, tensor_width, tensor_channels] = hwc;
+  int output_width = tensor_width, output_height = tensor_height;
+  if (cc->Inputs().HasTag(kOutputSizeTag)) {
+    const auto& size =
+        cc->Inputs().Tag(kOutputSizeTag).Get<std::pair<int, int>>();
+    output_width = size.first;
+    output_height = size.second;
+  }
+
+  // Create initial working mask.
+  cv::Mat small_mask_mat(cv::Size(tensor_width, tensor_height), CV_32FC1);
+
+  // Wrap input tensor.
+  auto raw_input_tensor = &input_tensors[0];
+  auto raw_input_view = raw_input_tensor->GetCpuReadView();
+  const float* raw_input_data = raw_input_view.buffer<float>();
+  cv::Mat tensor_mat(cv::Size(tensor_width, tensor_height),
+                     CV_MAKETYPE(CV_32F, tensor_channels),
+                     const_cast<float*>(raw_input_data));
+
+  // Process mask tensor and apply activation function.
+  if (tensor_channels == 2) {
+    MP_RETURN_IF_ERROR(ApplyActivation<cv::Vec2f>(tensor_mat, &small_mask_mat));
+  } else if (tensor_channels == 1) {
+    RET_CHECK(mediapipe::TensorsToSegmentationCalculatorOptions::SOFTMAX !=
+              options_.activation());  // Requires 2 channels.
+    if (mediapipe::TensorsToSegmentationCalculatorOptions::NONE ==
+        options_.activation())  // Pass-through optimization.
+      tensor_mat.copyTo(small_mask_mat);
+    else
+      MP_RETURN_IF_ERROR(ApplyActivation<float>(tensor_mat, &small_mask_mat));
+  } else {
+    RET_CHECK_FAIL() << "Unsupported number of tensor channels "
+                     << tensor_channels;
+  }
+
+  // Send out image as CPU packet.
+  std::shared_ptr<ImageFrame> mask_frame = std::make_shared<ImageFrame>(
+      ImageFormat::VEC32F1, output_width, output_height);
+  std::unique_ptr<Image> output_mask = absl::make_unique<Image>(mask_frame);
+  auto output_mat = formats::MatView(output_mask.get());
+  // Upsample small mask into output.
+  cv::resize(small_mask_mat, *output_mat,
+             cv::Size(output_width, output_height));
+  cc->Outputs().Tag(kMaskTag).Add(output_mask.release(), cc->InputTimestamp());
+#endif  // !MEDIAPIPE_DISABLE_OPENCV
+
+  return absl::OkStatus();
+}
+
+#if !MEDIAPIPE_DISABLE_OPENCV
+template <class T>
+absl::Status TensorsToSegmentationCalculator::ApplyActivation(
+    cv::Mat& tensor_mat, cv::Mat* small_mask_mat) {
+  // Configure activation function.
+  const int output_layer_index = options_.output_layer_index();
+  typedef mediapipe::TensorsToSegmentationCalculatorOptions Options;
+  const auto activation_fn = [&](const cv::Vec2f& mask_value) {
+    float new_mask_value = 0;
+    // TODO consider moving switch out of the loop,
+    // and also avoid float/Vec2f casting.
+    switch (options_.activation()) {
+      case Options::NONE: {
+        new_mask_value = mask_value[0];
+        break;
+      }
+      case Options::SIGMOID: {
+        const float pixel0 = mask_value[0];
+        new_mask_value = 1.0 / (std::exp(-pixel0) + 1.0);
+        break;
+      }
+      case Options::SOFTMAX: {
+        const float pixel0 = mask_value[0];
+        const float pixel1 = mask_value[1];
+        const float max_pixel = std::max(pixel0, pixel1);
+        const float min_pixel = std::min(pixel0, pixel1);
+        const float softmax_denom =
+            /*exp(max_pixel - max_pixel)=*/1.0f +
+            std::exp(min_pixel - max_pixel);
+        new_mask_value = std::exp(mask_value[output_layer_index] - max_pixel) /
+                         softmax_denom;
+        break;
+      }
+    }
+    return new_mask_value;
+  };
+
+  // Process mask tensor.
+  for (int i = 0; i < tensor_mat.rows; ++i) {
+    for (int j = 0; j < tensor_mat.cols; ++j) {
+      const T& input_pix = tensor_mat.at<T>(i, j);
+      const float mask_value = activation_fn(input_pix);
+      small_mask_mat->at<float>(i, j) = mask_value;
+    }
+  }
+
+  return absl::OkStatus();
+}
+#endif  // !MEDIAPIPE_DISABLE_OPENCV
+
 // Steps:
 // 1. receive tensor
 // 2. process segmentation tensor into small mask
 // 3. upsample small mask into output mask to be same size as input image
 absl::Status TensorsToSegmentationCalculator::ProcessGpu(
-    CalculatorContext* cc, const std::vector<Tensor>& input_tensors,
-    std::tuple<int, int, int> hwc, int output_width, int output_height) {
+    CalculatorContext* cc) {
 #if !MEDIAPIPE_DISABLE_GPU
+  // Get input streams, and dimensions.
+  const auto& input_tensors =
+      cc->Inputs().Tag(kTensorsTag).Get<std::vector<Tensor>>();
+  MP_ASSIGN_OR_RETURN(auto hwc, GetHwcFromDims(input_tensors[0].shape().dims));
   auto [tensor_height, tensor_width, tensor_channels] = hwc;
+  int output_width = tensor_width, output_height = tensor_height;
+  if (cc->Inputs().HasTag(kOutputSizeTag)) {
+    const auto& size =
+        cc->Inputs().Tag(kOutputSizeTag).Get<std::pair<int, int>>();
+    output_width = size.first;
+    output_height = size.second;
+  }
 
   // Create initial working mask texture.
 #if !(MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_31)
@@ -519,7 +632,7 @@ void TensorsToSegmentationCalculator::GlRender() {
 absl::Status TensorsToSegmentationCalculator::LoadOptions(
     CalculatorContext* cc) {
   // Get calculator options specified in the graph.
-  options_ = cc->Options<mediapipe::TensorsToSegmentationCalculatorOptions>();
+  options_ = cc->Options<::mediapipe::TensorsToSegmentationCalculatorOptions>();
 
   return absl::OkStatus();
 }
@@ -713,7 +826,7 @@ void main() {
 #endif  // MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_31
 
     // Shader defines.
-    using Options = ::mediapipe::TensorsToSegmentationCalculatorOptions;
+    typedef mediapipe::TensorsToSegmentationCalculatorOptions Options;
     const std::string output_layer_index =
         "\n#define OUTPUT_LAYER_INDEX int(" +
         std::to_string(options_.output_layer_index()) + ")";

mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test.cc

@@ -17,8 +17,10 @@
 #include <utility>
 #include <vector>
 
+#include "absl/log/absl_log.h"
+#include "absl/log/log.h"
+#include "absl/strings/substitute.h"
 #include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test_utils.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/calculator_runner.h"
 #include "mediapipe/framework/formats/image.h"
@@ -28,6 +30,7 @@
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/framework/packet.h"
 #include "mediapipe/framework/port/gtest.h"
+#include "mediapipe/framework/port/parse_text_proto.h"
 #include "mediapipe/framework/port/status_matchers.h"
 #include "mediapipe/framework/timestamp.h"
 
@@ -37,17 +40,58 @@ namespace {
 using ::testing::SizeIs;
 using ::testing::TestWithParam;
 using Options = mediapipe::TensorsToSegmentationCalculatorOptions;
-namespace test_utils = ::mediapipe::tensors_to_segmentation_utils;
 
-using TensorsToSegmentationCalculatorTest =
-    TestWithParam<test_utils::FormattingTestCase>;
+std::string ActivationTypeToString(Options::Activation activation) {
+  switch (activation) {
+    case Options::NONE:
+      return "NONE";
+    case Options::SIGMOID:
+      return "SIGMOID";
+    case Options::SOFTMAX:
+      return "SOFTMAX";
+    default:
+      ABSL_LOG(FATAL) << "Unknown activation type: " << activation;
+      return "UNKNOWN";
+  }
+}
+
+struct FormattingTestCase {
+  std::string test_name;
+  std::vector<float> inputs;
+  std::vector<float> expected_outputs;
+  Options::Activation activation;
+  int rows = 1;
+  int cols = 1;
+  int rows_new = 1;
+  int cols_new = 1;
+  int channels = 1;
+  double max_abs_diff = 1e-7;
+};
+
+using TensorsToSegmentationCalculatorTest = TestWithParam<FormattingTestCase>;
 
 TEST_P(TensorsToSegmentationCalculatorTest, ParameterizedTests) {
   const auto& [test_name, inputs, expected_outputs, activation, rows, cols,
                rows_new, cols_new, channels, max_abs_diff] = GetParam();
 
   auto graph_config =
-      test_utils::CreateGraphConfigForTest(/*test_gpu=*/false, activation);
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(absl::Substitute(
+          R"pb(
+            input_stream: "tensors"
+            input_stream: "size"
+            node {
+              calculator: "TensorsToSegmentationCalculator"
+              input_stream: "TENSORS:tensors"
+              input_stream: "OUTPUT_SIZE:size"
+              output_stream: "MASK:image_as_mask"
+              options: {
+                [mediapipe.TensorsToSegmentationCalculatorOptions.ext] {
+                  activation: $0
+                }
+              }
+            }
+          )pb",
+          ActivationTypeToString(activation)));
 
   std::vector<Packet> output_packets;
   tool::AddVectorSink("image_as_mask", &graph_config, &output_packets);
@@ -107,7 +151,7 @@ TEST_P(TensorsToSegmentationCalculatorTest, ParameterizedTests) {
 
 INSTANTIATE_TEST_SUITE_P(
     TensorsToSegmentationCalculatorTests, TensorsToSegmentationCalculatorTest,
-    testing::ValuesIn<test_utils::FormattingTestCase>({
+    testing::ValuesIn<FormattingTestCase>({
         {.test_name = "NoActivationAndNoOutputResize",
          .inputs = {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0,
                     12.0, 13.0, 14.0, 15.0, 16.0},

mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test_utils.cc

@@ -1,111 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test_utils.h"
-
-#include <string>
-#include <vector>
-
-#include "absl/log/absl_log.h"
-#include "absl/strings/substitute.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/framework/calculator.pb.h"
-#include "mediapipe/framework/port/parse_text_proto.h"
-
-namespace mediapipe {
-namespace tensors_to_segmentation_utils {
-
-std::string ActivationTypeToString(
-    const TensorsToSegmentationCalculatorOptions::Activation& activation) {
-  switch (activation) {
-    case TensorsToSegmentationCalculatorOptions::NONE:
-      return "NONE";
-    case TensorsToSegmentationCalculatorOptions::SIGMOID:
-      return "SIGMOID";
-    case TensorsToSegmentationCalculatorOptions::SOFTMAX:
-      return "SOFTMAX";
-  }
-  ABSL_LOG(FATAL) << "Unknown activation type: " << activation;
-  return "UNKNOWN";
-}
-
-std::vector<unsigned char> ArrayFloatToUnsignedChar(
-    const std::vector<float>& array) {
-  std::vector<unsigned char> result;
-  result.reserve(array.size());
-  for (int i = 0; i < array.size(); ++i) {
-    result.push_back(static_cast<unsigned char>(array[i]));
-  }
-  return result;
-}
-
-std::vector<float> MakeRedAlphaMatrix(const std::vector<float>& values) {
-  std::vector<float> result;
-  result.reserve(values.size() * 4);
-  for (const float& value : values) {
-    result.push_back(value);
-    result.push_back(0);
-    result.push_back(0);
-    result.push_back(value);
-  }
-  return result;
-}
-
-// For GPU tests, the input tensor needs to be moved to GPU, using
-// TensorViewRequestor. After calculation, the output needs to be moved back
-// to CPU, using ToImageCalculator. The output is an ImageFrame.
-mediapipe::CalculatorGraphConfig CreateGraphConfigForTest(
-    bool test_gpu,
-    const TensorsToSegmentationCalculatorOptions::Activation& activation) {
-  std::string pre_process = R"pb(
-    node {
-      calculator: "mediapipe.aimatter.TensorViewRequestor"
-      input_stream: "TENSORS:tensors"
-      output_stream: "TENSORS:tensors_gpu"
-      options {
-        [mediapipe.aimatter.TensorViewRequestorOptions.ext] { gpu {} }
-      }
-    }
-  )pb";
-  std::string post_process = R"pb(
-    node {
-      calculator: "FromImageCalculator"
-      input_stream: "IMAGE:image_as_mask_gpu"
-      output_stream: "IMAGE_CPU:image_as_mask"
-    }
-  )pb";
-  return mediapipe::ParseTextProtoOrDie<mediapipe::CalculatorGraphConfig>(
-      absl::Substitute(
-          R"pb(
-            input_stream: "tensors"
-            input_stream: "size" $0
-            node {
-              calculator: "TensorsToSegmentationCalculator"
-              input_stream: "TENSORS:tensors$1"
-              input_stream: "OUTPUT_SIZE:size"
-              output_stream: "MASK:image_as_mask$2"
-              options: {
-                [mediapipe.TensorsToSegmentationCalculatorOptions.ext] {
-                  activation: $3
-                  gpu_origin: TOP_LEFT
-                }
-              }
-            } $4
-          )pb",
-          test_gpu ? pre_process : "", test_gpu ? "_gpu" : "",
-          test_gpu ? "_gpu" : "", ActivationTypeToString(activation),
-          test_gpu ? post_process : ""));
-}
-}  // namespace tensors_to_segmentation_utils
-}  // namespace mediapipe

mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test_utils.h

@@ -1,57 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CALCULATOR_TEST_UTILS_H_
-#define MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CALCULATOR_TEST_UTILS_H_
-
-#include <memory>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/framework/calculator.pb.h"
-
-namespace mediapipe {
-namespace tensors_to_segmentation_utils {
-std::string ActivationTypeToString(
-    const mediapipe::TensorsToSegmentationCalculatorOptions::Activation&
-        activation);
-
-std::vector<unsigned char> ArrayFloatToUnsignedChar(
-    const std::vector<float>& array);
-
-std::vector<float> MakeRedAlphaMatrix(const std::vector<float>& values);
-
-mediapipe::CalculatorGraphConfig CreateGraphConfigForTest(
-    bool test_gpu,
-    const mediapipe::TensorsToSegmentationCalculatorOptions::Activation&
-        activation);
-
-struct FormattingTestCase {
-  std::string test_name;
-  std::vector<float> inputs;
-  std::vector<float> expected_outputs;
-  mediapipe::TensorsToSegmentationCalculatorOptions::Activation activation;
-  int rows = 1;
-  int cols = 1;
-  int rows_new = 1;
-  int cols_new = 1;
-  int channels = 1;
-  double max_abs_diff = 1e-7;
-};
-}  // namespace tensors_to_segmentation_utils
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CALCULATOR_TEST_UTILS_H_

mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test_utils_test.cc

@@ -1,50 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator_test_utils.h"
-
-#include <vector>
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/framework/port/gtest.h"
-
-namespace mediapipe::tensors_to_segmentation_utils {
-namespace {
-
-using Options = ::mediapipe::TensorsToSegmentationCalculatorOptions;
-
-TEST(TensorsToSegmentationCalculatorTestUtilsTest,
-     ActivationTypeToStringWorksCorrectly) {
-  EXPECT_EQ(ActivationTypeToString(Options::NONE), "NONE");
-  EXPECT_EQ(ActivationTypeToString(Options::SIGMOID), "SIGMOID");
-  EXPECT_EQ(ActivationTypeToString(Options::SOFTMAX), "SOFTMAX");
-}
-
-TEST(TensorsToSegmentationCalculatorTestUtilsTest,
-     ArrayFloatToUnsignedCharWorksCorrectly) {
-  std::vector<float> input = {1.0, 2.0, 3.0};
-  std::vector<unsigned char> expected = {1, 2, 3};
-  EXPECT_EQ(ArrayFloatToUnsignedChar(input), expected);
-}
-
-TEST(TensorsToSegmentationCalculatorTestUtilsTest,
-     MakeRedAlphaMatrixWorksCorrectly) {
-  std::vector<float> input = {1.0, 2.0, 3.0};
-  std::vector<float> expected = {1.0, 0.0, 0.0, 1.0, 2.0, 0.0,
-                                 0.0, 2.0, 3.0, 0.0, 0.0, 3.0};
-  EXPECT_EQ(MakeRedAlphaMatrix(input), expected);
-}
-
-}  // namespace
-}  // namespace mediapipe::tensors_to_segmentation_utils

mediapipe/calculators/tensor/tensors_to_segmentation_converter.h

@@ -1,43 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CONVERTER_H_
-#define MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CONVERTER_H_
-
-#include <memory>
-#include <vector>
-
-#include "absl/status/statusor.h"
-#include "mediapipe/framework/formats/image.h"
-#include "mediapipe/framework/formats/tensor.h"
-
-namespace mediapipe {
-
-class TensorsToSegmentationConverter {
- public:
-  virtual ~TensorsToSegmentationConverter() = default;
-
-  // Converts tensors to image mask.
-  // Returns a unique pointer containing the converted image.
-  // @input_tensors contains the tensors needed to be processed.
-  // @output_width/height describes output dimensions to reshape the output mask
-  // into.
-  virtual absl::StatusOr<std::unique_ptr<Image>> Convert(
-      const std::vector<Tensor>& input_tensors, int output_width,
-      int output_height) = 0;
-};
-
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CONVERTER_H_

mediapipe/calculators/tensor/tensors_to_segmentation_converter_opencv.cc

@@ -1,157 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_converter_opencv.h"
-
-#include <algorithm>
-#include <cmath>
-#include <memory>
-#include <vector>
-
-#include "absl/status/status.h"
-#include "absl/status/statusor.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_converter.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_utils.h"
-#include "mediapipe/framework/formats/image.h"
-#include "mediapipe/framework/formats/image_frame.h"
-#include "mediapipe/framework/formats/image_opencv.h"
-#include "mediapipe/framework/formats/tensor.h"
-#include "mediapipe/framework/port/opencv_core_inc.h"
-#include "mediapipe/framework/port/opencv_imgproc_inc.h"
-#include "mediapipe/framework/port/ret_check.h"
-#include "mediapipe/framework/port/status_macros.h"
-
-namespace mediapipe {
-namespace {
-
-class OpenCvProcessor : public TensorsToSegmentationConverter {
- public:
-  absl::Status Init(const TensorsToSegmentationCalculatorOptions& options) {
-    options_ = options;
-    return absl::OkStatus();
-  }
-
-  absl::StatusOr<std::unique_ptr<Image>> Convert(
-      const std::vector<Tensor>& input_tensors, int output_width,
-      int output_height) override;
-
- private:
-  template <class T>
-  absl::Status ApplyActivation(cv::Mat& tensor_mat, cv::Mat* small_mask_mat);
-
-  TensorsToSegmentationCalculatorOptions options_;
-};
-
-absl::StatusOr<std::unique_ptr<Image>> OpenCvProcessor::Convert(
-    const std::vector<Tensor>& input_tensors, int output_width,
-    int output_height) {
-  MP_ASSIGN_OR_RETURN(auto hwc, GetHwcFromDims(input_tensors[0].shape().dims));
-  auto [tensor_height, tensor_width, tensor_channels] = hwc;
-  // Create initial working mask.
-  cv::Mat small_mask_mat(cv::Size(tensor_width, tensor_height), CV_32FC1);
-
-  // Wrap input tensor.
-  auto raw_input_tensor = &input_tensors[0];
-  auto raw_input_view = raw_input_tensor->GetCpuReadView();
-  const float* raw_input_data = raw_input_view.buffer<float>();
-  cv::Mat tensor_mat(cv::Size(tensor_width, tensor_height),
-                     CV_MAKETYPE(CV_32F, tensor_channels),
-                     const_cast<float*>(raw_input_data));
-
-  // Process mask tensor and apply activation function.
-  if (tensor_channels == 2) {
-    MP_RETURN_IF_ERROR(ApplyActivation<cv::Vec2f>(tensor_mat, &small_mask_mat));
-  } else if (tensor_channels == 1) {
-    RET_CHECK(mediapipe::TensorsToSegmentationCalculatorOptions::SOFTMAX !=
-              options_.activation());  // Requires 2 channels.
-    if (mediapipe::TensorsToSegmentationCalculatorOptions::NONE ==
-        options_.activation())  // Pass-through optimization.
-      tensor_mat.copyTo(small_mask_mat);
-    else
-      MP_RETURN_IF_ERROR(ApplyActivation<float>(tensor_mat, &small_mask_mat));
-  } else {
-    RET_CHECK_FAIL() << "Unsupported number of tensor channels "
-                     << tensor_channels;
-  }
-
-  // Send out image as CPU packet.
-  std::shared_ptr<ImageFrame> mask_frame = std::make_shared<ImageFrame>(
-      ImageFormat::VEC32F1, output_width, output_height);
-  auto output_mask = std::make_unique<Image>(mask_frame);
-  auto output_mat = formats::MatView(output_mask.get());
-  // Upsample small mask into output.
-  cv::resize(small_mask_mat, *output_mat,
-             cv::Size(output_width, output_height));
-  return output_mask;
-}
-
-template <class T>
-absl::Status OpenCvProcessor::ApplyActivation(cv::Mat& tensor_mat,
-                                              cv::Mat* small_mask_mat) {
-  // Configure activation function.
-  const int output_layer_index = options_.output_layer_index();
-  using Options = ::mediapipe::TensorsToSegmentationCalculatorOptions;
-  const auto activation_fn = [&](const cv::Vec2f& mask_value) {
-    float new_mask_value = 0;
-    // TODO consider moving switch out of the loop,
-    // and also avoid float/Vec2f casting.
-    switch (options_.activation()) {
-      case Options::NONE: {
-        new_mask_value = mask_value[0];
-        break;
-      }
-      case Options::SIGMOID: {
-        const float pixel0 = mask_value[0];
-        new_mask_value = 1.0 / (std::exp(-pixel0) + 1.0);
-        break;
-      }
-      case Options::SOFTMAX: {
-        const float pixel0 = mask_value[0];
-        const float pixel1 = mask_value[1];
-        const float max_pixel = std::max(pixel0, pixel1);
-        const float min_pixel = std::min(pixel0, pixel1);
-        const float softmax_denom =
-            /*exp(max_pixel - max_pixel)=*/1.0f +
-            std::exp(min_pixel - max_pixel);
-        new_mask_value = std::exp(mask_value[output_layer_index] - max_pixel) /
-                         softmax_denom;
-        break;
-      }
-    }
-    return new_mask_value;
-  };
-
-  // Process mask tensor.
-  for (int i = 0; i < tensor_mat.rows; ++i) {
-    for (int j = 0; j < tensor_mat.cols; ++j) {
-      const T& input_pix = tensor_mat.at<T>(i, j);
-      const float mask_value = activation_fn(input_pix);
-      small_mask_mat->at<float>(i, j) = mask_value;
-    }
-  }
-
-  return absl::OkStatus();
-}
-
-}  // namespace
-
-absl::StatusOr<std::unique_ptr<TensorsToSegmentationConverter>>
-CreateOpenCvConverter(const TensorsToSegmentationCalculatorOptions& options) {
-  auto converter = std::make_unique<OpenCvProcessor>();
-  MP_RETURN_IF_ERROR(converter->Init(options));
-  return converter;
-}
-
-}  // namespace mediapipe

mediapipe/calculators/tensor/tensors_to_segmentation_converter_opencv.h

@@ -1,31 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CONVERTER_OPENCV_H_
-#define MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CONVERTER_OPENCV_H_
-
-#include <memory>
-
-#include "absl/status/statusor.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_converter.h"
-
-namespace mediapipe {
-// Creates OpenCV tensors-to-segmentation converter.
-absl::StatusOr<std::unique_ptr<TensorsToSegmentationConverter>>
-CreateOpenCvConverter(
-    const mediapipe::TensorsToSegmentationCalculatorOptions& options);
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_CONVERTER_OPENCV_H_

mediapipe/calculators/tensor/tensors_to_segmentation_utils.cc

@@ -1,52 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_utils.h"
-
-#include <tuple>
-#include <vector>
-
-#include "absl/status/statusor.h"
-#include "mediapipe/framework/port.h"
-#include "mediapipe/framework/port/ret_check.h"
-
-namespace mediapipe {
-
-int NumGroups(int size, int group_size) {
-  return (size + group_size - 1) / group_size;
-}
-
-bool CanUseGpu() {
-#if !MEDIAPIPE_DISABLE_GPU || MEDIAPIPE_METAL_ENABLED
-  // TODO: Configure GPU usage policy in individual calculators.
-  constexpr bool kAllowGpuProcessing = true;
-  return kAllowGpuProcessing;
-#else
-  return false;
-#endif  // !MEDIAPIPE_DISABLE_GPU || MEDIAPIPE_METAL_ENABLED
-}
-
-absl::StatusOr<std::tuple<int, int, int>> GetHwcFromDims(
-    const std::vector<int>& dims) {
-  if (dims.size() == 3) {
-    return std::make_tuple(dims[0], dims[1], dims[2]);
-  } else if (dims.size() == 4) {
-    // BHWC format check B == 1
-    RET_CHECK_EQ(dims[0], 1) << "Expected batch to be 1 for BHWC heatmap";
-    return std::make_tuple(dims[1], dims[2], dims[3]);
-  } else {
-    RET_CHECK(false) << "Invalid shape for segmentation tensor " << dims.size();
-  }
-}
-}  // namespace mediapipe

mediapipe/calculators/tensor/tensors_to_segmentation_utils.h

@@ -1,34 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_UTILS_H_
-#define MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_UTILS_H_
-
-#include <tuple>
-#include <vector>
-
-#include "absl/status/statusor.h"
-
-namespace mediapipe {
-
-// Commonly used to compute the number of blocks to launch in a kernel.
-int NumGroups(const int size, const int group_size);  // NOLINT
-
-bool CanUseGpu();
-
-absl::StatusOr<std::tuple<int, int, int>> GetHwcFromDims(
-    const std::vector<int>& dims);
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_CALCULATORS_TENSOR_TENSORS_TO_SEGMENTATION_UTILS_H_

mediapipe/calculators/tensor/tensors_to_segmentation_utils_test.cc

@@ -1,63 +0,0 @@
-// Copyright 2023 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "mediapipe/calculators/tensor/tensors_to_segmentation_utils.h"
-
-#include <tuple>
-#include <vector>
-
-#include "absl/status/statusor.h"
-#include "mediapipe/framework/port/gmock.h"
-#include "mediapipe/framework/port/gtest.h"
-#include "mediapipe/framework/port/status_matchers.h"
-
-namespace mediapipe {
-namespace {
-
-using ::testing::HasSubstr;
-
-TEST(TensorsToSegmentationUtilsTest, NumGroupsWorksProperly) {
-  EXPECT_EQ(NumGroups(13, 4), 4);
-  EXPECT_EQ(NumGroups(4, 13), 1);
-}
-
-TEST(TensorsToSegmentationUtilsTest, GetHwcFromDimsWorksProperly) {
-  std::vector<int> dims_3 = {2, 3, 4};
-  absl::StatusOr<std::tuple<int, int, int>> result_1 = GetHwcFromDims(dims_3);
-  MP_ASSERT_OK(result_1);
-  EXPECT_EQ(result_1.value(), (std::make_tuple(2, 3, 4)));
-  std::vector<int> dims_4 = {1, 3, 4, 5};
-  absl::StatusOr<std::tuple<int, int, int>> result_2 = GetHwcFromDims(dims_4);
-  MP_ASSERT_OK(result_2);
-  EXPECT_EQ(result_2.value(), (std::make_tuple(3, 4, 5)));
-}
-
-TEST(TensorsToSegmentationUtilsTest, GetHwcFromDimsBatchCheckFail) {
-  std::vector<int> dims_4 = {2, 3, 4, 5};
-  absl::StatusOr<std::tuple<int, int, int>> result = GetHwcFromDims(dims_4);
-  EXPECT_FALSE(result.ok());
-  EXPECT_THAT(result.status().message(),
-              HasSubstr("Expected batch to be 1 for BHWC heatmap"));
-}
-
-TEST(TensorsToSegmentationUtilsTest, GetHwcFromDimsInvalidShape) {
-  std::vector<int> dims_5 = {1, 2, 3, 4, 5};
-  absl::StatusOr<std::tuple<int, int, int>> result = GetHwcFromDims(dims_5);
-  EXPECT_FALSE(result.ok());
-  EXPECT_THAT(result.status().message(),
-              HasSubstr("Invalid shape for segmentation tensor"));
-}
-
-}  // namespace
-}  // namespace mediapipe

mediapipe/calculators/tensorflow/pack_media_sequence_calculator.cc

@@ -79,7 +79,7 @@ namespace mpms = mediapipe::mediasequence;
 //   and label and label_id are optional but at least one of them should be set.
 // "IMAGE_${NAME}", "BBOX_${NAME}", and "KEYPOINTS_${NAME}" will also store
 // prefixed versions of each stream, which allows for multiple image streams to
-// be included. However, the default names are supported by more tools.
+// be included. However, the default names are suppored by more tools.
 //
 // Example config:
 // node {

mediapipe/calculators/tensorflow/tensor_to_matrix_calculator.cc

@@ -67,8 +67,8 @@ absl::Status FillTimeSeriesHeaderIfValid(const Packet& header_packet,
 // -- 1-D or 2-D Tensor
 // Output:
 // -- Matrix with the same values as the Tensor
-// If input tensor is 1 dimensional, the output Matrix is of (1xn) shape.
-// If input tensor is 2 dimensional (batched), the output Matrix is (mxn) shape.
+// If input tensor is 1 dimensional, the ouput Matrix is of (1xn) shape.
+// If input tensor is 2 dimensional (batched), the ouput Matrix is (mxn) shape.
 //
 // Example Config
 // node: {

mediapipe/calculators/tensorflow/tensor_to_vector_int_calculator.cc

@@ -15,9 +15,9 @@
 // Calculator converts from one-dimensional Tensor of DT_FLOAT to vector<float>
 // OR from (batched) two-dimensional Tensor of DT_FLOAT to vector<vector<float>.
 
-#include <cstdint>
 #include <memory>
 
+#include "absl/base/integral_types.h"
 #include "mediapipe/calculators/tensorflow/tensor_to_vector_int_calculator_options.pb.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/port/status.h"

mediapipe/calculators/tensorflow/tensorflow_inference_calculator.cc

@@ -111,8 +111,8 @@ class InferenceState {
 // input_side_packet.
 //
 // The input and output streams are TensorFlow tensors labeled by tags. The tags
-// for the streams are matched to feeds and fetches in a TensorFlow session
-// using a named_signature.generic_signature in the ModelManifest. The
+// for the streams are matched to feeds and fetchs in a TensorFlow session using
+// a named_signature.generic_signature in the ModelManifest. The
 // generic_signature is used as key-value pairs between the MediaPipe tag and
 // the TensorFlow tensor. The signature_name in the options proto determines
 // which named_signature is used. The keys in the generic_signature must be
@@ -128,7 +128,7 @@ class InferenceState {
 // addition. Once batch_size inputs have been provided, the batch will be run
 // and the output tensors sent out on the output streams with timestamps
 // corresponding to the input stream packets. Setting the batch_size to 1
-// completely disables batching, but is independent of add_batch_dim_to_tensors.
+// completely disables batching, but is indepdent of add_batch_dim_to_tensors.
 //
 // The TensorFlowInferenceCalculator also support feeding states recurrently for
 // RNNs and LSTMs. Simply set the recurrent_tag_pair options to define the

mediapipe/calculators/tensorflow/tensorflow_inference_calculator.proto

@@ -42,7 +42,7 @@ message TensorFlowInferenceCalculatorOptions {
   // If the 0th dimension is the batch dimension, then the tensors are
   // concatenated on that dimension. If the 0th is a data dimension, then a 0th
   // dimension is added before concatenating. If added, the extra dimension is
-  // removed before outputting the tensor. Examples of each case: If you want
+  // removed before outputing the tensor. Examples of each case: If you want
   // to batch spectra of audio over time for an LSTM, a time-frequency
   // representation has a 0th dimension as the batch dimension. If you want to
   // batch frames of video that are [width, height, channels], the batch

mediapipe/calculators/tflite/testdata/README.md

@@ -1,2 +1,2 @@
 The model files add.bin, add_quantized.bin
-(and corresponding metadata json files) come from tensorflow/lite/testdata/
+(and corresponding metatada json files) come from tensorflow/lite/testdata/

mediapipe/calculators/tflite/tflite_converter_calculator.cc

@@ -95,7 +95,7 @@ struct GPUData {
 // into a TfLiteTensor (float 32) or a GpuBuffer to a tflite::gpu::GlBuffer
 // or MTLBuffer.
 //
-// This calculator is designed to be used with the TfLiteInferenceCalculator,
+// This calculator is designed to be used with the TfLiteInferenceCalcualtor,
 // as a pre-processing step for calculator inputs.
 //
 // IMAGE and IMAGE_GPU inputs are normalized to [-1,1] (default) or [0,1],

mediapipe/calculators/tflite/tflite_converter_calculator.proto

@@ -31,7 +31,7 @@ message TfLiteConverterCalculatorOptions {
   // Custom settings to override the internal scaling factors `div` and `sub`.
   // Both values must be set to non-negative values. Will only take effect on
   // CPU AND when |use_custom_normalization| is set to true. When these custom
-  // values take effect, the |zero_center| setting above will be overridden, and
+  // values take effect, the |zero_center| setting above will be overriden, and
   // the normalized_value will be calculated as:
   // normalized_value = input / custom_div - custom_sub.
   optional bool use_custom_normalization = 6 [default = false];

mediapipe/calculators/tflite/tflite_tensors_to_classification_calculator.proto

@@ -25,7 +25,7 @@ message TfLiteTensorsToClassificationCalculatorOptions {
     optional TfLiteTensorsToClassificationCalculatorOptions ext = 266399463;
   }
 
-  // Score threshold for preserving the class.
+  // Score threshold for perserving the class.
   optional float min_score_threshold = 1;
   // Number of highest scoring labels to output.  If top_k is not positive then
   // all labels are used.

mediapipe/calculators/tflite/tflite_tensors_to_detections_calculator.cc

@@ -116,7 +116,7 @@ void ConvertAnchorsToRawValues(const std::vector<Anchor>& anchors,
 //               tensors can have 2 or 3 tensors. First tensor is the predicted
 //               raw boxes/keypoints. The size of the values must be (num_boxes
 //               * num_predicted_values). Second tensor is the score tensor. The
-//               size of the values must be (num_boxes * num_classes). It's
+//               size of the valuse must be (num_boxes * num_classes). It's
 //               optional to pass in a third tensor for anchors (e.g. for SSD
 //               models) depend on the outputs of the detection model. The size
 //               of anchor tensor must be (num_boxes * 4).

mediapipe/calculators/tflite/tflite_tensors_to_detections_calculator.proto

@@ -69,6 +69,6 @@ message TfLiteTensorsToDetectionsCalculatorOptions {
   // representation has a bottom-left origin (e.g., in OpenGL).
   optional bool flip_vertically = 18 [default = false];
 
-  // Score threshold for preserving decoded detections.
+  // Score threshold for perserving decoded detections.
   optional float min_score_thresh = 19;
 }

mediapipe/calculators/tflite/tflite_tensors_to_landmarks_calculator.cc

@@ -158,7 +158,7 @@ absl::Status TfLiteTensorsToLandmarksCalculator::Open(CalculatorContext* cc) {
     RET_CHECK(options_.has_input_image_height() &&
               options_.has_input_image_width())
         << "Must provide input width/height for using flip_vertically option "
-           "when outputting landmarks in absolute coordinates.";
+           "when outputing landmarks in absolute coordinates.";
   }
 
   flip_horizontally_ =

mediapipe/examples/android/solutions/gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.2-bin.zip
 networkTimeout=10000
-validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

mediapipe/examples/android/solutions/gradlew

@@ -83,8 +83,10 @@ done
 # This is normally unused
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -131,13 +133,10 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    if ! command -v java >/dev/null 2>&1
-    then
-        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
-    fi
 fi
 
 # Increase the maximum file descriptors if we can.
@@ -145,7 +144,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC2039,SC3045
+        # shellcheck disable=SC3045 
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -153,7 +152,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC2039,SC3045
+        # shellcheck disable=SC3045 
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -198,15 +197,11 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
-#     and any embedded shellness will be escaped.
-#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
-#     treated as '${Hostname}' itself on the command line.
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \

mediapipe/examples/desktop/autoflip/quality/kinematic_path_solver.h

@@ -43,9 +43,9 @@ class KinematicPathSolver {
         initialized_(false),
         pixels_per_degree_(pixels_per_degree) {}
   // Add an observation (detection) at a position and time.
-  absl::Status AddObservation(int position, const uint64_t time_us);
+  absl::Status AddObservation(int position, const uint64 time_us);
   // Get the predicted position at a time.
-  absl::Status UpdatePrediction(const int64_t time_us);
+  absl::Status UpdatePrediction(const int64 time_us);
   // Get the state at a time, as an int.
   absl::Status GetState(int* position);
   // Get the state at a time, as a float.
@@ -63,7 +63,7 @@ class KinematicPathSolver {
   bool IsMotionTooSmall(double delta_degs);
   // Check if a position measurement will cause the camera to be in motion
   // without updating the internal state.
-  absl::Status PredictMotionState(int position, const uint64_t time_us,
+  absl::Status PredictMotionState(int position, const uint64 time_us,
                                   bool* state);
   // Clear any history buffer of positions that are used when
   // filtering_time_window_us is set to a non-zero value.
@@ -85,9 +85,9 @@ class KinematicPathSolver {
   double current_position_px_;
   double prior_position_px_;
   double current_velocity_deg_per_s_;
-  uint64_t current_time_ = 0;
+  uint64 current_time_ = 0;
   // History of observations (second) and their time (first).
-  std::deque<std::pair<uint64_t, int>> raw_positions_at_time_;
+  std::deque<std::pair<uint64, int>> raw_positions_at_time_;
   // Current target position.
   double target_position_px_;
   // Defines if the camera is moving to a target (true) or reached a target

mediapipe/examples/desktop/autoflip/quality/scene_camera_motion_analyzer.h

@@ -67,7 +67,7 @@ class SceneCameraMotionAnalyzer {
       const KeyFrameCropOptions& key_frame_crop_options,
       const std::vector<KeyFrameCropResult>& key_frame_crop_results,
       const int scene_frame_width, const int scene_frame_height,
-      const std::vector<int64_t>& scene_frame_timestamps,
+      const std::vector<int64>& scene_frame_timestamps,
       const bool has_solid_color_background,
       SceneKeyFrameCropSummary* scene_summary,
       std::vector<FocusPointFrame>* focus_point_frames,
@@ -78,7 +78,7 @@ class SceneCameraMotionAnalyzer {
   // crop window in SceneKeyFrameCropSummary in the case of steady motion.
   absl::Status DecideCameraMotionType(
       const KeyFrameCropOptions& key_frame_crop_options,
-      const double scene_span_sec, const int64_t end_time_us,
+      const double scene_span_sec, const int64 end_time_us,
       SceneKeyFrameCropSummary* scene_summary,
       SceneCameraMotion* scene_camera_motion) const;
 
@@ -87,7 +87,7 @@ class SceneCameraMotionAnalyzer {
   absl::Status PopulateFocusPointFrames(
       const SceneKeyFrameCropSummary& scene_summary,
       const SceneCameraMotion& scene_camera_motion,
-      const std::vector<int64_t>& scene_frame_timestamps,
+      const std::vector<int64>& scene_frame_timestamps,
       std::vector<FocusPointFrame>* focus_point_frames) const;
 
  private:
@@ -118,7 +118,7 @@ class SceneCameraMotionAnalyzer {
   absl::Status PopulateFocusPointFramesForTracking(
       const SceneKeyFrameCropSummary& scene_summary,
       const FocusPointFrameType focus_point_frame_type,
-      const std::vector<int64_t>& scene_frame_timestamps,
+      const std::vector<int64>& scene_frame_timestamps,
       std::vector<FocusPointFrame>* focus_point_frames) const;
 
   // Decide to use steady motion.
@@ -142,7 +142,7 @@ class SceneCameraMotionAnalyzer {
 
   // Last position
   SceneCameraMotion last_scene_with_salient_region_;
-  int64_t time_since_last_salient_region_us_;
+  int64 time_since_last_salient_region_us_;
 
   // Scene has solid color background.
   bool has_solid_color_background_;

mediapipe/examples/desktop/autoflip/quality/scene_cropper.h

@@ -62,7 +62,7 @@ class SceneCropper {
   // TODO: split this function into two separate functions.
   absl::Status CropFrames(
       const SceneKeyFrameCropSummary& scene_summary,
-      const std::vector<int64_t>& scene_timestamps,
+      const std::vector<int64>& scene_timestamps,
       const std::vector<bool>& is_key_frames,
       const std::vector<cv::Mat>& scene_frames_or_empty,
       const std::vector<FocusPointFrame>& focus_point_frames,
@@ -73,7 +73,7 @@ class SceneCropper {
 
   absl::Status ProcessKinematicPathSolver(
       const SceneKeyFrameCropSummary& scene_summary,
-      const std::vector<int64_t>& scene_timestamps,
+      const std::vector<int64>& scene_timestamps,
       const std::vector<bool>& is_key_frames,
       const std::vector<FocusPointFrame>& focus_point_frames,
       const bool continue_last_scene, std::vector<cv::Mat>* all_xforms);

mediapipe/examples/desktop/autoflip/quality/utils.h

@@ -29,7 +29,7 @@ namespace autoflip {
 // Packs detected features and timestamp (ms) into a KeyFrameInfo object. Scales
 // features back to the original frame size if features have been detected on a
 // different frame size.
-absl::Status PackKeyFrameInfo(const int64_t frame_timestamp_ms,
+absl::Status PackKeyFrameInfo(const int64 frame_timestamp_ms,
                               const DetectionSet& detections,
                               const int original_frame_width,
                               const int original_frame_height,
@@ -71,7 +71,7 @@ absl::Status ComputeSceneStaticBordersSize(
 // interpolation functions in Lab space using input timestamps.
 absl::Status FindSolidBackgroundColor(
     const std::vector<StaticFeatures>& static_features,
-    const std::vector<int64_t>& static_features_timestamps,
+    const std::vector<int64>& static_features_timestamps,
     const double min_fraction_solid_background_color,
     bool* has_solid_background,
     PiecewiseLinearFunction* background_color_l_function,

mediapipe/framework/BUILD

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#
 
 load("//mediapipe/framework/port:build_config.bzl", "mediapipe_proto_library")
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
@@ -367,7 +368,6 @@ cc_library(
         "@com_google_absl//absl/container:flat_hash_set",
         "@com_google_absl//absl/log:absl_check",
         "@com_google_absl//absl/log:absl_log",
-        "@com_google_absl//absl/log:check",
         "@com_google_absl//absl/memory",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",

mediapipe/framework/api2/BUILD

@@ -81,13 +81,15 @@ cc_library(
     srcs = ["node.cc"],
     hdrs = ["node.h"],
     deps = [
+        ":const_str",
         ":contract",
+        ":packet",
+        ":port",
         "//mediapipe/framework:calculator_base",
         "//mediapipe/framework:calculator_context",
         "//mediapipe/framework:calculator_contract",
         "//mediapipe/framework:subgraph",
-        "//mediapipe/framework/deps:registration",
-        "@com_google_absl//absl/status",
+        "//mediapipe/framework/deps:no_destructor",
     ],
 )
 

mediapipe/framework/api2/builder.h

@@ -330,14 +330,6 @@ using MultiSideDestination = MultiPort<SideDestination<T>>;
 
 class NodeBase {
  public:
-  NodeBase() = default;
-  ~NodeBase() = default;
-  NodeBase(NodeBase&&) = default;
-  NodeBase& operator=(NodeBase&&) = default;
-  // Explicitly delete copies to improve error messages.
-  NodeBase(const NodeBase&) = delete;
-  NodeBase& operator=(const NodeBase&) = delete;
-
   // TODO: right now access to an indexed port is made directly by
   // specifying both a tag and an index. It would be better to represent this
   // as a two-step lookup, first getting a multi-port, and then accessing one
@@ -593,14 +585,6 @@ class PacketGenerator {
 
 class Graph {
  public:
-  Graph() = default;
-  ~Graph() = default;
-  Graph(Graph&&) = default;
-  Graph& operator=(Graph&&) = default;
-  // Explicitly delete copies to improve error messages.
-  Graph(const Graph&) = delete;
-  Graph& operator=(const Graph&) = delete;
-
   void SetType(std::string type) { type_ = std::move(type); }
 
   // Creates a node of a specific type. Should be used for calculators whose

mediapipe/framework/api2/node.h

@@ -1,15 +1,17 @@
 #ifndef MEDIAPIPE_FRAMEWORK_API2_NODE_H_
 #define MEDIAPIPE_FRAMEWORK_API2_NODE_H_
 
-#include <memory>
-#include <type_traits>
+#include <functional>
+#include <string>
 
-#include "absl/status/status.h"
+#include "mediapipe/framework/api2/const_str.h"
 #include "mediapipe/framework/api2/contract.h"
+#include "mediapipe/framework/api2/packet.h"
+#include "mediapipe/framework/api2/port.h"
 #include "mediapipe/framework/calculator_base.h"
 #include "mediapipe/framework/calculator_context.h"
 #include "mediapipe/framework/calculator_contract.h"
-#include "mediapipe/framework/deps/registration.h"
+#include "mediapipe/framework/deps/no_destructor.h"
 #include "mediapipe/framework/subgraph.h"
 
 namespace mediapipe {
@@ -176,10 +178,7 @@ class SubgraphImpl : public Subgraph,
       absl::make_unique<mediapipe::internal::CalculatorBaseFactoryFor<Impl>>)
 
 // This macro is used to register a non-split-contract calculator. Deprecated.
-#define MEDIAPIPE_REGISTER_NODE(name)                                    \
-  MEDIAPIPE_REGISTER_FACTORY_FUNCTION_QUALIFIED(                         \
-      mediapipe::CalculatorBaseRegistry, calculator_registration, #name, \
-      absl::make_unique<mediapipe::internal::CalculatorBaseFactoryFor<name>>)
+#define MEDIAPIPE_REGISTER_NODE(name) REGISTER_CALCULATOR(name)
 
 // This macro is used to define a subgraph that does not use automatic
 // registration. Deprecated.

mediapipe/framework/calculator_graph.cc

@@ -28,7 +28,6 @@
 #include "absl/container/flat_hash_set.h"
 #include "absl/log/absl_check.h"
 #include "absl/log/absl_log.h"
-#include "absl/log/check.h"
 #include "absl/memory/memory.h"
 #include "absl/status/status.h"
 #include "absl/strings/str_cat.h"
@@ -891,12 +890,12 @@ absl::Status CalculatorGraph::WaitForObservedOutput() {
 }
 
 absl::Status CalculatorGraph::AddPacketToInputStream(
-    absl::string_view stream_name, const Packet& packet) {
+    const std::string& stream_name, const Packet& packet) {
   return AddPacketToInputStreamInternal(stream_name, packet);
 }
 
 absl::Status CalculatorGraph::AddPacketToInputStream(
-    absl::string_view stream_name, Packet&& packet) {
+    const std::string& stream_name, Packet&& packet) {
   return AddPacketToInputStreamInternal(stream_name, std::move(packet));
 }
 
@@ -919,18 +918,14 @@ absl::Status CalculatorGraph::SetInputStreamTimestampBound(
 // std::forward will deduce the correct type as we pass along packet.
 template <typename T>
 absl::Status CalculatorGraph::AddPacketToInputStreamInternal(
-    absl::string_view stream_name, T&& packet) {
-  auto stream_it = graph_input_streams_.find(stream_name);
+    const std::string& stream_name, T&& packet) {
   std::unique_ptr<GraphInputStream>* stream =
-      stream_it == graph_input_streams_.end() ? nullptr : &stream_it->second;
+      mediapipe::FindOrNull(graph_input_streams_, stream_name);
   RET_CHECK(stream).SetNoLogging() << absl::Substitute(
       "AddPacketToInputStream called on input stream \"$0\" which is not a "
       "graph input stream.",
       stream_name);
-  auto node_id_it = graph_input_stream_node_ids_.find(stream_name);
-  ABSL_CHECK(node_id_it != graph_input_stream_node_ids_.end())
-      << "Map key not found: " << stream_name;
-  int node_id = node_id_it->second;
+  int node_id = mediapipe::FindOrDie(graph_input_stream_node_ids_, stream_name);
   ABSL_CHECK_GE(node_id, validated_graph_->CalculatorInfos().size());
   {
     absl::MutexLock lock(&full_input_streams_mutex_);

mediapipe/framework/calculator_graph.h

@@ -32,7 +32,6 @@
 #include "absl/container/flat_hash_set.h"
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"
-#include "absl/strings/string_view.h"
 #include "absl/synchronization/mutex.h"
 #include "mediapipe/framework/calculator.pb.h"
 #include "mediapipe/framework/calculator_base.h"
@@ -256,7 +255,7 @@ class CalculatorGraph {
   // sizes of the queues in the graph. The input stream must have been specified
   // in the configuration as a graph level input_stream. On error, nothing is
   // added.
-  absl::Status AddPacketToInputStream(absl::string_view stream_name,
+  absl::Status AddPacketToInputStream(const std::string& stream_name,
                                       const Packet& packet);
 
   // Same as the l-value version of this function by the same name, but moves
@@ -266,7 +265,7 @@ class CalculatorGraph {
   // packet may remain valid.  In particular, when using the ADD_IF_NOT_FULL
   // mode with a full queue, this will return StatusUnavailable and the caller
   // may try adding the packet again later.
-  absl::Status AddPacketToInputStream(absl::string_view stream_name,
+  absl::Status AddPacketToInputStream(const std::string& stream_name,
                                       Packet&& packet);
 
   // Indicates that input will arrive no earlier than a certain timestamp.
@@ -510,7 +509,7 @@ class CalculatorGraph {
   // AddPacketToInputStream(Packet&& packet) or
   // AddPacketToInputStream(const Packet& packet).
   template <typename T>
-  absl::Status AddPacketToInputStreamInternal(absl::string_view stream_name,
+  absl::Status AddPacketToInputStreamInternal(const std::string& stream_name,
                                               T&& packet);
 
   // Sets the executor that will run the nodes assigned to the executor

mediapipe/framework/deps/strong_int.h

@@ -31,14 +31,14 @@
 // A StrongInt<T> with a NullStrongIntValidator should compile away to a raw T
 // in optimized mode.  What this means is that the generated assembly for:
 //
-//   int64_t foo = 123;
-//   int64_t bar = 456;
-//   int64_t baz = foo + bar;
-//   constexpr int64_t fubar = 789;
+//   int64 foo = 123;
+//   int64 bar = 456;
+//   int64 baz = foo + bar;
+//   constexpr int64 fubar = 789;
 //
 // ...should be identical to the generated assembly for:
 //
-//    DEFINE_STRONG_INT_TYPE(MyStrongInt, int64_t);
+//    DEFINE_STRONG_INT_TYPE(MyStrongInt, int64);
 //    MyStrongInt foo(123);
 //    MyStrongInt bar(456);
 //    MyStrongInt baz = foo + bar;
@@ -97,7 +97,6 @@
 #ifndef MEDIAPIPE_DEPS_STRONG_INT_H_
 #define MEDIAPIPE_DEPS_STRONG_INT_H_
 
-#include <cstdint>
 #include <iosfwd>
 #include <limits>
 #include <ostream>
@@ -180,11 +179,11 @@ struct NullStrongIntValidator {
   }
   // Verify lhs << rhs.
   template <typename T>
-  static void ValidateLeftShift(T lhs, int64_t rhs) { /* do nothing */
+  static void ValidateLeftShift(T lhs, int64 rhs) { /* do nothing */
   }
   // Verify lhs >> rhs.
   template <typename T>
-  static void ValidateRightShift(T lhs, int64_t rhs) { /* do nothing */
+  static void ValidateRightShift(T lhs, int64 rhs) { /* do nothing */
   }
   // Verify lhs & rhs.
   template <typename T>
@@ -225,8 +224,8 @@ class StrongInt {
   //
   // Example: Assume you have two StrongInt types.
   //
-  //      DEFINE_STRONG_INT_TYPE(Bytes, int64_t);
-  //      DEFINE_STRONG_INT_TYPE(Megabytes, int64_t);
+  //      DEFINE_STRONG_INT_TYPE(Bytes, int64);
+  //      DEFINE_STRONG_INT_TYPE(Megabytes, int64);
   //
   //  If you want to be able to (explicitly) construct an instance of Bytes from
   //  an instance of Megabytes, simply define a converter function in the same
@@ -338,12 +337,12 @@ class StrongInt {
     value_ %= arg;
     return *this;
   }
-  StrongInt &operator<<=(int64_t arg) {  // NOLINT(whitespace/operators)
+  StrongInt &operator<<=(int64 arg) {  // NOLINT(whitespace/operators)
     ValidatorType::template ValidateLeftShift<ValueType>(value_, arg);
     value_ <<= arg;
     return *this;
   }
-  StrongInt &operator>>=(int64_t arg) {  // NOLINT(whitespace/operators)
+  StrongInt &operator>>=(int64 arg) {  // NOLINT(whitespace/operators)
     ValidatorType::template ValidateRightShift<ValueType>(value_, arg);
     value_ >>= arg;
     return *this;
@@ -379,19 +378,19 @@ std::ostream &operator<<(std::ostream &os,
   return os << arg.value();
 }
 
-// Provide the << operator, primarily for logging purposes. Specialized for
-// int8_t so that an integer and not a character is printed.
+// Provide the << operator, primarily for logging purposes. Specialized for int8
+// so that an integer and not a character is printed.
 template <typename TagType, typename ValidatorType>
 std::ostream &operator<<(std::ostream &os,
-                         StrongInt<TagType, int8_t, ValidatorType> arg) {
+                         StrongInt<TagType, int8, ValidatorType> arg) {
   return os << static_cast<int>(arg.value());
 }
 
 // Provide the << operator, primarily for logging purposes. Specialized for
-// uint8_t so that an integer and not a character is printed.
+// uint8 so that an integer and not a character is printed.
 template <typename TagType, typename ValidatorType>
 std::ostream &operator<<(std::ostream &os,
-                         StrongInt<TagType, uint8_t, ValidatorType> arg) {
+                         StrongInt<TagType, uint8, ValidatorType> arg) {
   return os << static_cast<unsigned int>(arg.value());
 }
 

mediapipe/framework/encode_binary_proto.bzl

@@ -76,12 +76,10 @@ def _get_proto_provider(dep):
     """
     if ProtoInfo in dep:
         return dep[ProtoInfo]
-
     elif hasattr(dep, "proto"):
         return dep.proto
     else:
-        fail("cannot happen, rule definition requires .proto" +
-             " or ProtoInfo")
+        fail("cannot happen, rule definition requires .proto or ProtoInfo")
 
 def _encode_binary_proto_impl(ctx):
     """Implementation of the encode_binary_proto rule."""
@@ -144,10 +142,7 @@ _encode_binary_proto = rule(
             cfg = "exec",
         ),
         "deps": attr.label_list(
-            providers = [
-                [ProtoInfo],
-                ["proto"],
-            ],
+            providers = [[ProtoInfo], ["proto"]],
         ),
         "input": attr.label(
             mandatory = True,
@@ -187,10 +182,7 @@ def _generate_proto_descriptor_set_impl(ctx):
     all_protos = depset(transitive = [
         _get_proto_provider(dep).transitive_sources
         for dep in ctx.attr.deps
-        if (
-            ProtoInfo in dep or
-            hasattr(dep, "proto")
-        )
+        if ProtoInfo in dep or hasattr(dep, "proto")
     ])
     descriptor = ctx.outputs.output
 
@@ -221,10 +213,7 @@ generate_proto_descriptor_set = rule(
             cfg = "exec",
         ),
         "deps": attr.label_list(
-            providers = [
-                [ProtoInfo],
-                ["proto"],
-            ],
+            providers = [[ProtoInfo], ["proto"]],
         ),
     },
     outputs = {"output": "%{name}.proto.bin"},

mediapipe/framework/formats/BUILD

@@ -124,15 +124,6 @@ cc_library(
     ],
 )
 
-cc_library(
-    name = "ahwb_view",
-    hdrs = ["ahwb_view.h"],
-    deps = [
-        "//mediapipe/framework:port",
-        "//mediapipe/gpu:gpu_buffer_storage",
-    ],
-)
-
 cc_library(
     name = "affine_transform",
     srcs = ["affine_transform.cc"],
@@ -155,27 +146,6 @@ cc_library(
     ],
 )
 
-cc_library(
-    name = "hardware_buffer",
-    srcs = ["hardware_buffer_android.cc"],
-    hdrs = ["hardware_buffer.h"],
-    linkopts = select({
-        "//conditions:default": [],
-        # Option for vendor binaries to avoid linking libandroid.so.
-        "//mediapipe/framework:android_no_jni": [],
-        "//mediapipe:android": ["-landroid"],
-        ":android_link_native_window": [
-            "-lnativewindow",  # Provides <android/hardware_buffer.h> to vendor binaries on Android API >= 26.
-        ],
-    }),
-    visibility = ["//visibility:private"],
-    deps = [
-        "//mediapipe/framework/port:ret_check",
-        "//mediapipe/framework/port:statusor",
-        "@com_google_absl//absl/log:absl_check",
-    ],
-)
-
 cc_library(
     name = "image_frame",
     srcs = ["image_frame.cc"],
@@ -514,31 +484,28 @@ cc_library(
         "//conditions:default": [],
         # Option for vendor binaries to avoid linking libandroid.so.
         "//mediapipe/framework:android_no_jni": [],
+        "//mediapipe:android": ["-landroid"],
+        ":android_link_native_window": [
+            "-lnativewindow",  # Provides <android/hardware_buffer.h> to vendor binaries on Android API >= 26.
+        ],
     }),
     deps = [
-        "//mediapipe/framework:port",
-        "@com_google_absl//absl/container:flat_hash_map",
-        "@com_google_absl//absl/log:absl_check",
-        "@com_google_absl//absl/log:absl_log",
-        "@com_google_absl//absl/memory",
-        "@com_google_absl//absl/synchronization",
-    ] + select({
-        "//mediapipe/gpu:disable_gpu": [],
-        "//conditions:default": [
-            "//mediapipe/gpu:gl_base",
-            "//mediapipe/gpu:gl_context",
-        ],
-        "//mediapipe:android": [
-            ":hardware_buffer",
-            "//mediapipe/gpu:gl_base",
-            "//mediapipe/gpu:gl_context",
-        ],
-        ":android_link_native_window": [
-            ":hardware_buffer",
-            "//mediapipe/gpu:gl_base",
-            "//mediapipe/gpu:gl_context",
-        ],
-    }),
+               "//mediapipe/framework:port",
+               "@com_google_absl//absl/container:flat_hash_map",
+               "@com_google_absl//absl/log:absl_check",
+               "@com_google_absl//absl/log:absl_log",
+               "@com_google_absl//absl/memory",
+               "@com_google_absl//absl/synchronization",
+           ] + select({
+               "//mediapipe/gpu:disable_gpu": [],
+               "//conditions:default": [
+                   "//mediapipe/gpu:gl_base",
+                   "//mediapipe/gpu:gl_context",
+               ],
+           }) +
+           select({
+               "//conditions:default": [],
+           }),
 )
 
 cc_test(

mediapipe/framework/formats/ahwb_view.h

@@ -1,54 +0,0 @@
-#ifndef MEDIAPIPE_FRAMEWORK_FORMATS_AHWB_VIEW_H_
-#define MEDIAPIPE_FRAMEWORK_FORMATS_AHWB_VIEW_H_
-
-#include "mediapipe/framework/port.h"
-#ifdef MEDIAPIPE_GPU_BUFFER_USE_AHWB
-#include <android/hardware_buffer.h>
-
-#include "mediapipe/gpu/gpu_buffer_storage.h"
-
-namespace mediapipe {
-
-// Wrapper to facilitate short lived access to Android Hardware Buffer objects.
-// Intended use cases:
-// - Extracting an AHWB for processing in another library after it's produced by
-// MediaPipe.
-// - Sending AHWBs to compute devices that are able to map the memory for their
-// own usage.
-// The AHWB abstractions in GpuBuffer and Tensor are likely more suitable for
-// other CPU/GPU uses of AHWBs.
-class AhwbView {
- public:
-  explicit AhwbView(AHardwareBuffer* handle) : handle_(handle) {}
-  // Non-copyable
-  AhwbView(const AhwbView&) = delete;
-  AhwbView& operator=(const AhwbView&) = delete;
-  // Non-movable
-  AhwbView(AhwbView&&) = delete;
-
-  // Only supports synchronous usage. All users of GetHandle must finish
-  // accessing the buffer before this view object is destroyed to avoid race
-  // conditions.
-  // TODO: Support asynchronous usage.
-  const AHardwareBuffer* GetHandle() const { return handle_; }
-
- private:
-  const AHardwareBuffer* handle_;
-};
-
-namespace internal {
-// Makes this class available as a GpuBuffer view.
-template <>
-class ViewProvider<AhwbView> {
- public:
-  virtual ~ViewProvider() = default;
-  virtual const AhwbView GetReadView(types<AhwbView>) const = 0;
-  virtual AhwbView GetWriteView(types<AhwbView>) = 0;
-};
-
-}  // namespace internal
-
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_GPU_BUFFER_USE_AHWB
-#endif  // MEDIAPIPE_FRAMEWORK_FORMATS_AHWB_VIEW_H_

mediapipe/framework/formats/deleting_file.cc

@@ -17,25 +17,10 @@
 
 #include <stdio.h>
 
-#include <utility>
-
 #include "absl/log/absl_log.h"
 
 namespace mediapipe {
 
-DeletingFile::DeletingFile(DeletingFile&& other)
-    : path_(std::move(other.path_)),
-      delete_on_destruction_(other.delete_on_destruction_) {
-  other.delete_on_destruction_ = false;
-}
-
-DeletingFile& DeletingFile::operator=(DeletingFile&& other) {
-  path_ = std::move(other.path_);
-  delete_on_destruction_ = other.delete_on_destruction_;
-  other.delete_on_destruction_ = false;
-  return *this;
-}
-
 DeletingFile::DeletingFile(const std::string& path, bool delete_on_destruction)
     : path_(path), delete_on_destruction_(delete_on_destruction) {}
 

mediapipe/framework/formats/deleting_file.h

@@ -28,11 +28,6 @@ class DeletingFile {
   DeletingFile(const DeletingFile&) = delete;
   DeletingFile& operator=(const DeletingFile&) = delete;
 
-  // DeletingFile is movable. The moved-from object remains in valid but
-  // unspecified state and will not perform any operations on destruction.
-  DeletingFile(DeletingFile&& other);
-  DeletingFile& operator=(DeletingFile&& other);
-
   // Provide the path to the file and whether the file should be deleted
   // when this object is destroyed.
   DeletingFile(const std::string& path, bool delete_on_destruction);

mediapipe/framework/formats/frame_buffer.h

@@ -16,11 +16,11 @@ limitations under the License.
 #ifndef MEDIAPIPE_FRAMEWORK_FORMATS_FRAME_BUFFER_H_
 #define MEDIAPIPE_FRAMEWORK_FORMATS_FRAME_BUFFER_H_
 
-#include <cstdint>
 #include <vector>
 
 #include "absl/log/absl_check.h"
 #include "absl/status/statusor.h"
+#include "mediapipe/framework/port/integral_types.h"
 
 namespace mediapipe {
 
@@ -76,13 +76,13 @@ class FrameBuffer {
 
   // Plane encapsulates buffer and stride information.
   struct Plane {
-    Plane(uint8_t* buffer, Stride stride) : buffer_(buffer), stride_(stride) {}
-    const uint8_t* buffer() const { return buffer_; }
-    uint8_t* mutable_buffer() { return buffer_; }
+    Plane(uint8* buffer, Stride stride) : buffer_(buffer), stride_(stride) {}
+    const uint8* buffer() const { return buffer_; }
+    uint8* mutable_buffer() { return buffer_; }
     Stride stride() const { return stride_; }
 
    private:
-    uint8_t* buffer_;
+    uint8* buffer_;
     Stride stride_;
   };
 
@@ -121,9 +121,9 @@ class FrameBuffer {
 
   // YUV data structure.
   struct YuvData {
-    const uint8_t* y_buffer;
-    const uint8_t* u_buffer;
-    const uint8_t* v_buffer;
+    const uint8* y_buffer;
+    const uint8* u_buffer;
+    const uint8* v_buffer;
     // Y buffer row stride in bytes.
     int y_row_stride;
     // U/V buffer row stride in bytes.

mediapipe/framework/formats/hardware_buffer.h

@@ -1,167 +0,0 @@
-// Copyright 2019 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef MEDIAPIPE_FRAMEWORK_FORMATS_HARDWARE_BUFFER_H_
-#define MEDIAPIPE_FRAMEWORK_FORMATS_HARDWARE_BUFFER_H_
-
-#include <cstdint>
-#include <memory>
-#include <optional>
-#include <utility>
-
-#include "absl/base/attributes.h"
-#include "absl/status/status.h"
-#include "absl/status/statusor.h"
-
-typedef struct AHardwareBuffer AHardwareBuffer;
-
-namespace mediapipe {
-
-struct HardwareBufferSpec {
-  // Buffer pixel formats. See NDK's hardware_buffer.h for descriptions.
-  enum {
-    // This must be kept in sync with NDK's hardware_buffer.h
-    AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM = 0x01,
-    AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM = 0x03,
-    AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT = 0x16,
-    AHARDWAREBUFFER_FORMAT_BLOB = 0x21,
-    AHARDWAREBUFFER_FORMAT_R8_UNORM = 0x38,
-  };
-
-  // Buffer usage descriptions. See NDK's hardware_buffer.h for descriptions.
-  enum {
-    // This must be kept in sync with NDK's hardware_buffer.h
-    AHARDWAREBUFFER_USAGE_CPU_READ_NEVER = 0x0UL,
-    AHARDWAREBUFFER_USAGE_CPU_READ_RARELY = 0x2UL,
-    AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN = 0x3UL,
-    AHARDWAREBUFFER_USAGE_CPU_WRITE_NEVER = UINT64_C(0) << 4,
-    AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY = UINT64_C(2) << 4,
-    AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN = UINT64_C(3) << 4,
-    AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE = UINT64_C(1) << 8,
-    AHARDWAREBUFFER_USAGE_GPU_FRAMEBUFFER = UINT64_C(1) << 9,
-    AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER = UINT64_C(1) << 24,
-  };
-
-  // Hashing required to use HardwareBufferSpec as key in buffer pools. See
-  // absl::Hash for details.
-  template <typename H>
-  friend H AbslHashValue(H h, const HardwareBufferSpec& spec) {
-    return H::combine(std::move(h), spec.width, spec.height, spec.layers,
-                      spec.format, spec.usage);
-  }
-
-  uint32_t width = 0;
-  uint32_t height = 0;
-  uint32_t layers = 0;
-  uint32_t format = 0;
-  uint64_t usage = 0;
-};
-
-// Equality operators
-inline bool operator==(const HardwareBufferSpec& lhs,
-                       const HardwareBufferSpec& rhs) {
-  return lhs.width == rhs.width && lhs.height == rhs.height &&
-         lhs.layers == rhs.layers && lhs.format == rhs.format &&
-         lhs.usage == rhs.usage;
-}
-inline bool operator!=(const HardwareBufferSpec& lhs,
-                       const HardwareBufferSpec& rhs) {
-  return !operator==(lhs, rhs);
-}
-
-// For internal use only. Thinly wraps the Android NDK AHardwareBuffer.
-class HardwareBuffer {
- public:
-  // Constructs a HardwareBuffer instance from a newly allocated Android NDK
-  // AHardwareBuffer.
-  static absl::StatusOr<HardwareBuffer> Create(const HardwareBufferSpec& spec);
-
-  // Destructs the HardwareBuffer, releasing the AHardwareBuffer.
-  ~HardwareBuffer();
-
-  // Support HardwareBuffer moves.
-  HardwareBuffer(HardwareBuffer&& other);
-
-  // Delete assignment and copy constructors.
-  HardwareBuffer(HardwareBuffer& other) = delete;
-  HardwareBuffer(const HardwareBuffer& other) = delete;
-  HardwareBuffer& operator=(const HardwareBuffer&) = delete;
-
-  // Returns true if AHWB is supported.
-  static bool IsSupported();
-
-  // Lock the hardware buffer for the given usage flags. fence_file_descriptor
-  // specifies a fence file descriptor on which to wait before locking the
-  // buffer. Returns raw memory address if lock is successful, nullptr
-  // otherwise.
-  ABSL_MUST_USE_RESULT absl::StatusOr<void*> Lock(
-      uint64_t usage, std::optional<int> fence_file_descriptor = std::nullopt);
-
-  // Unlocks the hardware buffer synchronously. This method blocks until
-  // unlocking is complete.
-  absl::Status Unlock();
-
-  // Unlocks the hardware buffer asynchronously. It returns a file_descriptor
-  // which can be used as a fence that is signaled once unlocking is complete.
-  absl::StatusOr<int> UnlockAsync();
-
-  // Returns the underlying raw AHardwareBuffer pointer to be used directly with
-  // AHardwareBuffer APIs.
-  AHardwareBuffer* GetAHardwareBuffer() const { return ahw_buffer_; }
-
-  // Returns whether this HardwareBuffer contains a valid AHardwareBuffer.
-  bool IsValid() const { return ahw_buffer_ != nullptr; }
-
-  // Returns whether this HardwareBuffer is locked.
-  bool IsLocked() const { return is_locked_; }
-
-  // Releases the AHardwareBuffer.
-  void Reset();
-
-  // Ahwb's are aligned to an implementation specific cacheline size.
-  uint32_t GetAlignedWidth() const;
-
-  // Returns buffer spec.
-  const HardwareBufferSpec& spec() const { return spec_; }
-
- private:
-  // Allocates an AHardwareBuffer instance;
-  static absl::StatusOr<AHardwareBuffer*> AllocateAHardwareBuffer(
-      const HardwareBufferSpec& spec);
-
-  // Constructs a HardwareBuffer instance from an already aquired
-  // AHardwareBuffer instance and its spec.
-  HardwareBuffer(const HardwareBufferSpec& spec, AHardwareBuffer* ahwb);
-
-  // Unlocks the hardware buffer. If fence_file_descriptor_ptr is not nullptr,
-  // the function won't block and instead fence_file_descriptor_ptr will be set
-  // to a file descriptor to become signaled once unlocking is complete.
-  absl::Status UnlockInternal(int* fence_file_descriptor_ptr);
-
-  // Releases ahw_buffer_ AHardwareBuffer instance;
-  absl::Status ReleaseAHardwareBuffer();
-
-  // Buffer spec.
-  HardwareBufferSpec spec_ = {};
-
-  // Android NDK AHardwareBuffer.
-  AHardwareBuffer* ahw_buffer_ = nullptr;
-
-  // Indicates if AHardwareBuffer is locked for reading or writing.
-  bool is_locked_ = false;
-};
-
-}  // namespace mediapipe
-
-#endif  // MEDIAPIPE_FRAMEWORK_FORMATS_AHWB_BUFFER_H_

mediapipe/framework/formats/hardware_buffer_android.cc

@@ -1,152 +0,0 @@
-// Copyright 2019 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#if !defined(MEDIAPIPE_NO_JNI) && \
-    (__ANDROID_API__ >= 26 ||     \
-     defined(__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__))
-
-#include <android/hardware_buffer.h>
-
-#include <memory>
-
-#include "absl/log/absl_check.h"
-#include "absl/status/status.h"
-#include "absl/status/statusor.h"
-#include "mediapipe/framework/formats/hardware_buffer.h"
-#include "mediapipe/framework/port/ret_check.h"
-
-namespace mediapipe {
-
-HardwareBuffer::HardwareBuffer(HardwareBuffer &&other) {
-  spec_ = std::exchange(other.spec_, {});
-  ahw_buffer_ = std::exchange(other.ahw_buffer_, nullptr);
-  is_locked_ = std::exchange(other.is_locked_, false);
-}
-
-HardwareBuffer::HardwareBuffer(const HardwareBufferSpec &spec,
-                               AHardwareBuffer *ahwb)
-    : spec_(spec), ahw_buffer_(ahwb), is_locked_(false) {}
-
-HardwareBuffer::~HardwareBuffer() { Reset(); }
-
-absl::StatusOr<HardwareBuffer> HardwareBuffer::Create(
-    const HardwareBufferSpec &spec) {
-  MP_ASSIGN_OR_RETURN(AHardwareBuffer * ahwb, AllocateAHardwareBuffer(spec));
-  return HardwareBuffer(spec, ahwb);
-}
-
-bool HardwareBuffer::IsSupported() {
-  if (__builtin_available(android 26, *)) {
-    return true;
-  }
-  return false;
-}
-
-absl::StatusOr<AHardwareBuffer *> HardwareBuffer::AllocateAHardwareBuffer(
-    const HardwareBufferSpec &spec) {
-  RET_CHECK(IsSupported()) << "AndroidHWBuffers not supported";
-
-  AHardwareBuffer *output = nullptr;
-  int error = 0;
-  if (__builtin_available(android 26, *)) {
-    AHardwareBuffer_Desc desc = {
-        .width = spec.width,
-        .height = spec.height,
-        .layers = spec.layers,
-        .format = spec.format,
-        .usage = spec.usage,
-    };
-    error = AHardwareBuffer_allocate(&desc, &output);
-  }
-  RET_CHECK(!error && output != nullptr) << "AHardwareBuffer_allocate failed";
-  return output;
-}
-
-absl::Status HardwareBuffer::ReleaseAHardwareBuffer() {
-  if (ahw_buffer_ == nullptr) {
-    return absl::OkStatus();
-  }
-  if (is_locked_) {
-    MP_RETURN_IF_ERROR(Unlock());
-  }
-  if (__builtin_available(android 26, *)) {
-    AHardwareBuffer_release(ahw_buffer_);
-  }
-  spec_ = {};
-  ahw_buffer_ = nullptr;
-  return absl::OkStatus();
-}
-
-absl::StatusOr<void *> HardwareBuffer::Lock(
-    uint64_t usage, std::optional<int> fence_file_descriptor) {
-  RET_CHECK(ahw_buffer_ != nullptr) << "Hardware Buffer not allocated";
-  RET_CHECK(!is_locked_) << "Hardware Buffer already locked";
-  void *mem = nullptr;
-  if (__builtin_available(android 26, *)) {
-    const int error = AHardwareBuffer_lock(
-        ahw_buffer_, usage,
-        fence_file_descriptor.has_value() ? *fence_file_descriptor : -1,
-        nullptr, &mem);
-    RET_CHECK(error == 0) << "Hardware Buffer lock failed. Error: " << error;
-  }
-  is_locked_ = true;
-  return mem;
-}
-
-absl::Status HardwareBuffer::Unlock() {
-  return UnlockInternal(/*fence_file_descriptor=*/nullptr);
-}
-
-absl::StatusOr<int> HardwareBuffer::UnlockAsync() {
-  int fence_file_descriptor = -1;
-  MP_RETURN_IF_ERROR(UnlockInternal(&fence_file_descriptor));
-  return fence_file_descriptor;
-}
-
-absl::Status HardwareBuffer::UnlockInternal(int *fence_file_descriptor) {
-  RET_CHECK(ahw_buffer_ != nullptr) << "Hardware Buffer not allocated";
-  if (!is_locked_) {
-    return absl::OkStatus();
-  }
-  if (__builtin_available(android 26, *)) {
-    const int error =
-        AHardwareBuffer_unlock(ahw_buffer_, fence_file_descriptor);
-    RET_CHECK(error == 0) << "Hardware Buffer unlock failed. error: " << error;
-  }
-  is_locked_ = false;
-  return absl::OkStatus();
-}
-
-uint32_t HardwareBuffer::GetAlignedWidth() const {
-  if (__builtin_available(android 26, *)) {
-    ABSL_CHECK(ahw_buffer_ != nullptr) << "Hardware Buffer not allocated";
-    AHardwareBuffer_Desc desc = {};
-    AHardwareBuffer_describe(ahw_buffer_, &desc);
-    ABSL_CHECK_GT(desc.stride, 0);
-    return desc.stride;
-  }
-  return 0;
-}
-
-void HardwareBuffer::Reset() {
-  const auto success = ReleaseAHardwareBuffer();
-  if (!success.ok()) {
-    ABSL_LOG(DFATAL) << "Failed to release AHardwareBuffer: " << success;
-  }
-}
-
-}  // namespace mediapipe
-
-#endif  // !defined(MEDIAPIPE_NO_JNI) && (__ANDROID_API__>= 26 ||
-        // defined(__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__))

mediapipe/framework/formats/hardware_buffer_test.cc

@@ -1,131 +0,0 @@
-#include "mediapipe/framework/formats/hardware_buffer.h"
-
-#include <android/hardware_buffer.h>
-
-#include <memory>
-
-#include "base/logging.h"
-#include "mediapipe/framework/port/status_macros.h"
-#include "testing/base/public/gmock.h"
-#include "testing/base/public/gunit.h"
-
-namespace mediapipe {
-
-namespace {
-
-HardwareBufferSpec GetTestHardwareBufferSpec(uint32_t size_bytes) {
-  return {.width = size_bytes,
-          .height = 1,
-          .layers = 1,
-          .format = HardwareBufferSpec::AHARDWAREBUFFER_FORMAT_BLOB,
-          .usage = HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY |
-                   HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN |
-                   HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
-                   HardwareBufferSpec::AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER};
-}
-
-TEST(HardwareBufferTest, ShouldConstructValidAHardwareBuffer) {
-  MP_ASSERT_OK_AND_ASSIGN(
-      HardwareBuffer hardware_buffer,
-      HardwareBuffer::Create(GetTestHardwareBufferSpec(/*size_bytes=*/123)));
-  EXPECT_NE(hardware_buffer.GetAHardwareBuffer(), nullptr);
-  EXPECT_TRUE(hardware_buffer.IsValid());
-}
-
-TEST(HardwareBufferTest, ShouldResetValidAHardwareBuffer) {
-  MP_ASSERT_OK_AND_ASSIGN(
-      HardwareBuffer hardware_buffer,
-      HardwareBuffer::Create(GetTestHardwareBufferSpec(/*size_bytes=*/123)));
-  EXPECT_TRUE(hardware_buffer.IsValid());
-  EXPECT_NE(*hardware_buffer.Lock(
-                HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY),
-            nullptr);
-  EXPECT_TRUE(hardware_buffer.IsLocked());
-
-  hardware_buffer.Reset();
-
-  EXPECT_FALSE(hardware_buffer.IsValid());
-  EXPECT_FALSE(hardware_buffer.IsLocked());
-}
-
-TEST(HardwareBufferTest, ShouldAllocateRequestedBufferSize) {
-  constexpr int kBufferSize = 123;
-  const HardwareBufferSpec spec = GetTestHardwareBufferSpec(kBufferSize);
-  MP_ASSERT_OK_AND_ASSIGN(HardwareBuffer hardware_buffer,
-                          HardwareBuffer::Create(spec));
-
-  EXPECT_TRUE(hardware_buffer.IsValid());
-  if (__builtin_available(android 26, *)) {
-    AHardwareBuffer_Desc desc;
-    AHardwareBuffer_describe(hardware_buffer.GetAHardwareBuffer(), &desc);
-    EXPECT_EQ(desc.width, spec.width);
-    EXPECT_EQ(desc.height, spec.height);
-    EXPECT_EQ(desc.layers, spec.layers);
-    EXPECT_EQ(desc.format, spec.format);
-    EXPECT_EQ(desc.usage, spec.usage);
-  }
-  EXPECT_EQ(hardware_buffer.spec().width, spec.width);
-  EXPECT_EQ(hardware_buffer.spec().height, spec.height);
-  EXPECT_EQ(hardware_buffer.spec().layers, spec.layers);
-  EXPECT_EQ(hardware_buffer.spec().format, spec.format);
-  EXPECT_EQ(hardware_buffer.spec().usage, spec.usage);
-}
-
-TEST(HardwareBufferTest, ShouldSupportMoveConstructor) {
-  constexpr int kBufferSize = 123;
-  const auto spec = GetTestHardwareBufferSpec(kBufferSize);
-  MP_ASSERT_OK_AND_ASSIGN(HardwareBuffer hardware_buffer_a,
-                          HardwareBuffer::Create(spec));
-  EXPECT_TRUE(hardware_buffer_a.IsValid());
-  void* const ahardware_buffer_ptr_a = hardware_buffer_a.GetAHardwareBuffer();
-  EXPECT_NE(ahardware_buffer_ptr_a, nullptr);
-  EXPECT_FALSE(hardware_buffer_a.IsLocked());
-  MP_ASSERT_OK_AND_ASSIGN(
-      void* const hardware_buffer_a_locked_ptr,
-      hardware_buffer_a.Lock(
-          HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY));
-  EXPECT_NE(hardware_buffer_a_locked_ptr, nullptr);
-  EXPECT_TRUE(hardware_buffer_a.IsLocked());
-
-  HardwareBuffer hardware_buffer_b(std::move(hardware_buffer_a));
-
-  EXPECT_FALSE(hardware_buffer_a.IsValid());
-  EXPECT_FALSE(hardware_buffer_a.IsLocked());
-  void* const ahardware_buffer_ptr_b = hardware_buffer_b.GetAHardwareBuffer();
-  EXPECT_EQ(ahardware_buffer_ptr_a, ahardware_buffer_ptr_b);
-  EXPECT_TRUE(hardware_buffer_b.IsValid());
-  EXPECT_TRUE(hardware_buffer_b.IsLocked());
-
-  EXPECT_EQ(hardware_buffer_a.spec(), HardwareBufferSpec());
-  EXPECT_EQ(hardware_buffer_b.spec(), spec);
-
-  MP_ASSERT_OK(hardware_buffer_b.Unlock());
-}
-
-TEST(HardwareBufferTest, ShouldSupportReadWrite) {
-  constexpr std::string_view kTestString = "TestString";
-  constexpr int kBufferSize = kTestString.size();
-  MP_ASSERT_OK_AND_ASSIGN(
-      HardwareBuffer hardware_buffer,
-      HardwareBuffer::Create(GetTestHardwareBufferSpec(kBufferSize)));
-
-  // Write test string.
-  MP_ASSERT_OK_AND_ASSIGN(
-      void* const write_ptr,
-      hardware_buffer.Lock(
-          HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY));
-  memcpy(write_ptr, kTestString.data(), kBufferSize);
-  MP_ASSERT_OK(hardware_buffer.Unlock());
-
-  // Read test string.
-  MP_ASSERT_OK_AND_ASSIGN(
-      void* const read_ptr,
-      hardware_buffer.Lock(
-          HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_READ_RARELY));
-  EXPECT_EQ(memcmp(read_ptr, kTestString.data(), kBufferSize), 0);
-  MP_ASSERT_OK(hardware_buffer.Unlock());
-}
-
-}  // namespace
-
-}  // namespace mediapipe

mediapipe/framework/formats/image.h

@@ -15,7 +15,6 @@
 #ifndef MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_H_
 #define MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_H_
 
-#include <cstdint>
 #include <utility>
 
 #include "absl/synchronization/mutex.h"
@@ -208,7 +207,7 @@ inline void Image::UnlockPixels() const {}
 //   Image buf = ...
 //   {
 //     PixelLock lock(&buf);
-//     uint8_t* buf_ptr = lock.Pixels();
+//     uint8* buf_ptr = lock.Pixels();
 //     ... use buf_ptr to access pixel data ...
 //     ... lock released automatically at end of scope ...
 //   }
@@ -229,7 +228,7 @@ class PixelReadLock {
   }
   PixelReadLock(const PixelReadLock&) = delete;
 
-  const uint8_t* Pixels() const {
+  const uint8* Pixels() const {
     if (frame_) return frame_->PixelData();
     return nullptr;
   }
@@ -255,7 +254,7 @@ class PixelWriteLock {
   }
   PixelWriteLock(const PixelWriteLock&) = delete;
 
-  uint8_t* Pixels() {
+  uint8* Pixels() {
     if (frame_) return frame_->MutablePixelData();
     return nullptr;
   }

mediapipe/framework/formats/image_frame.h

@@ -35,13 +35,13 @@
 #ifndef MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_FRAME_H_
 #define MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_FRAME_H_
 
-#include <cstdint>
 #include <functional>
 #include <memory>
 #include <string>
 
 #include "mediapipe/framework/formats/image_format.pb.h"
 #include "mediapipe/framework/port.h"
+#include "mediapipe/framework/port/integral_types.h"
 #include "mediapipe/framework/tool/type_util.h"
 
 #define IMAGE_FRAME_RAW_IMAGE MEDIAPIPE_HAS_RTTI
@@ -63,7 +63,7 @@ namespace mediapipe {
 // stored with row padding for alignment purposes.
 class ImageFrame {
  public:
-  typedef std::function<void(uint8_t*)> Deleter;
+  typedef std::function<void(uint8*)> Deleter;
 
   // This class offers a few standard delete functions and retains
   // compatibility with the previous API.
@@ -78,13 +78,13 @@ class ImageFrame {
   // Use a default alignment boundary of 16 because Intel SSE2 instructions may
   // incur performance penalty when accessing data not aligned on a 16-byte
   // boundary. FFmpeg requires at least this level of alignment.
-  static const uint32_t kDefaultAlignmentBoundary = 16;
+  static const uint32 kDefaultAlignmentBoundary = 16;
 
   // If the pixel data of an ImageFrame will be passed to an OpenGL function
   // such as glTexImage2D() or glReadPixels(), use a four-byte alignment
   // boundary because that is the initial value of the OpenGL GL_PACK_ALIGNMENT
   // and GL_UNPACK_ALIGNMENT parameters.
-  static const uint32_t kGlDefaultAlignmentBoundary = 4;
+  static const uint32 kGlDefaultAlignmentBoundary = 4;
 
   // Returns number of channels for an ImageFormat.
   static int NumberOfChannelsForFormat(ImageFormat::Format format);
@@ -104,7 +104,7 @@ class ImageFrame {
   // must be a power of 2 (the number 1 is valid, and means the data will
   // be stored contiguously).
   ImageFrame(ImageFormat::Format format, int width, int height,
-             uint32_t alignment_boundary);
+             uint32 alignment_boundary);
   // Same as above, but use kDefaultAlignmentBoundary for alignment_boundary.
   ImageFrame(ImageFormat::Format format, int width, int height);
 
@@ -115,8 +115,8 @@ class ImageFrame {
   // width*num_channels*depth.  Both width_step and depth are in units
   // of bytes.
   ImageFrame(ImageFormat::Format format, int width, int height, int width_step,
-             uint8_t* pixel_data,
-             Deleter deleter = std::default_delete<uint8_t[]>());
+             uint8* pixel_data,
+             Deleter deleter = std::default_delete<uint8[]>());
 
   ImageFrame(ImageFrame&& move_from);
   ImageFrame& operator=(ImageFrame&& move_from);
@@ -142,7 +142,7 @@ class ImageFrame {
   // alignment_boundary.  If IsAligned(16) is true then so are
   // IsAligned(8), IsAligned(4), IsAligned(2), and IsAligned(1).
   // alignment_boundary must be 1 or a power of 2.
-  bool IsAligned(uint32_t alignment_boundary) const;
+  bool IsAligned(uint32 alignment_boundary) const;
 
   // Returns the image / video format.
   ImageFormat::Format Format() const { return format_; }
@@ -167,13 +167,13 @@ class ImageFrame {
   // Reset the current image frame and copy the data from image_frame into
   // this image frame.  The alignment_boundary must be given (and won't
   // necessarily match the alignment_boundary of the input image_frame).
-  void CopyFrom(const ImageFrame& image_frame, uint32_t alignment_boundary);
+  void CopyFrom(const ImageFrame& image_frame, uint32 alignment_boundary);
 
   // Get a mutable pointer to the underlying image data.  The ImageFrame
   // retains ownership.
-  uint8_t* MutablePixelData() { return pixel_data_.get(); }
+  uint8* MutablePixelData() { return pixel_data_.get(); }
   // Get a const pointer to the underlying image data.
-  const uint8_t* PixelData() const { return pixel_data_.get(); }
+  const uint8* PixelData() const { return pixel_data_.get(); }
 
   // Returns the total size of the pixel data.
   int PixelDataSize() const { return Height() * WidthStep(); }
@@ -187,41 +187,41 @@ class ImageFrame {
   // ImageFrame takes ownership of pixel_data.  See the Constructor
   // with the same arguments for details.
   void AdoptPixelData(ImageFormat::Format format, int width, int height,
-                      int width_step, uint8_t* pixel_data,
-                      Deleter deleter = std::default_delete<uint8_t[]>());
+                      int width_step, uint8* pixel_data,
+                      Deleter deleter = std::default_delete<uint8[]>());
 
   // Resets the ImageFrame and makes it a copy of the provided pixel
   // data, which is assumed to be stored contiguously.  The ImageFrame
   // will use the given alignment_boundary.
   void CopyPixelData(ImageFormat::Format format, int width, int height,
-                     const uint8_t* pixel_data, uint32_t alignment_boundary);
+                     const uint8* pixel_data, uint32 alignment_boundary);
 
   // Resets the ImageFrame and makes it a copy of the provided pixel
   // data, with given width_step.  The ImageFrame
   // will use the given alignment_boundary.
   void CopyPixelData(ImageFormat::Format format, int width, int height,
-                     int width_step, const uint8_t* pixel_data,
-                     uint32_t alignment_boundary);
+                     int width_step, const uint8* pixel_data,
+                     uint32 alignment_boundary);
 
   // Allocates a frame of the specified format, width, height, and alignment,
   // without clearing any current pixel data. See the constructor with the same
   // argument list.
   void Reset(ImageFormat::Format format, int width, int height,
-             uint32_t alignment_boundary);
+             uint32 alignment_boundary);
 
   // Relinquishes ownership of the pixel data.  Notice that the unique_ptr
   // uses a non-standard deleter.
-  std::unique_ptr<uint8_t[], Deleter> Release();
+  std::unique_ptr<uint8[], Deleter> Release();
 
   // Copy the 8-bit ImageFrame into a contiguous, pre-allocated buffer. Note
   // that ImageFrame does not necessarily store its data contiguously (i.e. do
   // not use copy_n to move image data).
-  void CopyToBuffer(uint8_t* buffer, int buffer_size) const;
+  void CopyToBuffer(uint8* buffer, int buffer_size) const;
 
   // A version of CopyToBuffer for 16-bit pixel data. Note that buffer_size
   // stores the number of 16-bit elements in the buffer, not the number of
   // bytes.
-  void CopyToBuffer(uint16_t* buffer, int buffer_size) const;
+  void CopyToBuffer(uint16* buffer, int buffer_size) const;
 
   // A version of CopyToBuffer for float pixel data. Note that buffer_size
   // stores the number of float elements in the buffer, not the number of
@@ -233,12 +233,12 @@ class ImageFrame {
 
  private:
   // Returns true if alignment_number is 1 or a power of 2.
-  static bool IsValidAlignmentNumber(uint32_t alignment_boundary);
+  static bool IsValidAlignmentNumber(uint32 alignment_boundary);
 
   // The internal implementation of copying data from the provided pixel data.
   // If width_step is 0, then calculates width_step assuming no padding.
   void InternalCopyFrom(int width, int height, int width_step, int channel_size,
-                        const uint8_t* pixel_data);
+                        const uint8* pixel_data);
 
   // The internal implementation of copying data to the provided buffer.
   // If width_step is 0, then calculates width_step assuming no padding.
@@ -249,7 +249,7 @@ class ImageFrame {
   int height_;
   int width_step_;
 
-  std::unique_ptr<uint8_t[], Deleter> pixel_data_;
+  std::unique_ptr<uint8[], Deleter> pixel_data_;
 };
 
 }  // namespace mediapipe

mediapipe/framework/formats/location.cc

@@ -16,7 +16,6 @@
 
 #include <algorithm>
 #include <cmath>
-#include <cstdint>
 #include <memory>
 
 #include "absl/log/absl_check.h"

mediapipe/framework/formats/location_opencv.cc

@@ -215,7 +215,7 @@ Location CreateCvMaskLocation(const cv::Mat_<T>& mask) {
   return Location(location_data);
 }
 
-template Location CreateCvMaskLocation(const cv::Mat_<uint8_t>& mask);
+template Location CreateCvMaskLocation(const cv::Mat_<uint8>& mask);
 template Location CreateCvMaskLocation(const cv::Mat_<float>& mask);
 
 }  // namespace mediapipe

mediapipe/framework/formats/tensor.cc

@@ -24,9 +24,6 @@
 #if MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_30
 #include "mediapipe/gpu/gl_base.h"
 #endif  // MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_30
-#ifdef MEDIAPIPE_TENSOR_USE_AHWB
-#include "mediapipe/framework/formats/hardware_buffer.h"
-#endif  // MEDIAPIPE_TENSOR_USE_AHWB
 
 #if MEDIAPIPE_METAL_ENABLED
 #import <Metal/Metal.h>
@@ -342,14 +339,6 @@ Tensor::OpenGlBufferView Tensor::GetOpenGlBufferReadView() const {
       << "Tensor conversion between different GPU backing formats is not "
          "supported yet.";
   auto lock(absl::make_unique<absl::MutexLock>(&view_mutex_));
-  if ((valid_ & kValidOpenGlBuffer) && gl_context_ != nullptr &&
-      !gl_context_->IsCurrent() && GlContext::IsAnyContextCurrent()) {
-    ABSL_LOG_FIRST_N(WARNING, 1)
-        << "Tensor::GetOpenGlBufferReadView is not executed on the same GL "
-           "context where GL buffer was created. Note that Tensor has "
-           "limited synchronization support when sharing OpenGl objects "
-           "between multiple OpenGL contexts.";
-  }
   AllocateOpenGlBuffer();
   if (!(valid_ & kValidOpenGlBuffer)) {
     // If the call succeeds then AHWB -> SSBO are synchronized so any usage of
@@ -367,13 +356,7 @@ Tensor::OpenGlBufferView Tensor::GetOpenGlBufferReadView() const {
   }
   return {opengl_buffer_, std::move(lock),
 #ifdef MEDIAPIPE_TENSOR_USE_AHWB
-          // ssbo_read_ is passed to be populated on OpenGlBufferView
-          // destruction in order to perform delayed resources releasing (see
-          // tensor_ahwb.cc/DelayedReleaser) only when AHWB is in use.
-          //
-          // Not passing for the case when AHWB is not in use to avoid creation
-          // of unnecessary sync object and memory leak.
-          use_ahwb_ ? &ssbo_read_ : nullptr
+          &ssbo_read_
 #else
           nullptr
 #endif  // MEDIAPIPE_TENSOR_USE_AHWB
@@ -384,14 +367,6 @@ Tensor::OpenGlBufferView Tensor::GetOpenGlBufferWriteView(
     uint64_t source_location_hash) const {
   auto lock(absl::make_unique<absl::MutexLock>(&view_mutex_));
   TrackAhwbUsage(source_location_hash);
-  if ((valid_ & kValidOpenGlBuffer) && gl_context_ != nullptr &&
-      !gl_context_->IsCurrent() && GlContext::IsAnyContextCurrent()) {
-    ABSL_LOG_FIRST_N(WARNING, 1)
-        << "Tensor::GetOpenGlBufferWriteView is not executed on the same GL "
-           "context where GL buffer was created. Note that Tensor has "
-           "limited synchronization support when sharing OpenGl objects "
-           "between multiple OpenGL contexts.";
-  }
   AllocateOpenGlBuffer();
   valid_ = kValidOpenGlBuffer;
   return {opengl_buffer_, std::move(lock), nullptr};
@@ -561,8 +536,9 @@ Tensor::CpuReadView Tensor::GetCpuReadView() const {
     void* ptr = MapAhwbToCpuRead();
     if (ptr) {
       valid_ |= kValidCpu;
-      return {ptr, std::move(lock), [ahwb = ahwb_.get()] {
-                ABSL_CHECK_OK(ahwb->Unlock()) << "Unlock failed.";
+      return {ptr, std::move(lock), [ahwb = ahwb_] {
+                auto error = AHardwareBuffer_unlock(ahwb, nullptr);
+                ABSL_CHECK(error == 0) << "AHardwareBuffer_unlock " << error;
               }};
     }
   }
@@ -644,11 +620,9 @@ Tensor::CpuWriteView Tensor::GetCpuWriteView(
   if (__builtin_available(android 26, *)) {
     void* ptr = MapAhwbToCpuWrite();
     if (ptr) {
-      return {ptr, std::move(lock),
-              [ahwb = ahwb_.get(), fence_fd = &fence_fd_] {
-                auto fence_fd_status = ahwb->UnlockAsync();
-                ABSL_CHECK_OK(fence_fd_status) << "Unlock failed.";
-                *fence_fd = fence_fd_status.value();
+      return {ptr, std::move(lock), [ahwb = ahwb_, fence_fd = &fence_fd_] {
+                auto error = AHardwareBuffer_unlock(ahwb, fence_fd);
+                ABSL_CHECK(error == 0) << "AHardwareBuffer_unlock " << error;
               }};
     }
   }

mediapipe/framework/formats/tensor.h

@@ -44,8 +44,7 @@
 #ifdef MEDIAPIPE_TENSOR_USE_AHWB
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
-
-#include "mediapipe/framework/formats/hardware_buffer.h"
+#include <android/hardware_buffer.h>
 #endif  // MEDIAPIPE_TENSOR_USE_AHWB
 #if MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_30
 #include "mediapipe/gpu/gl_base.h"
@@ -196,11 +195,9 @@ class Tensor {
   using FinishingFunc = std::function<bool(bool)>;
   class AHardwareBufferView : public View {
    public:
-    AHardwareBuffer* handle() const {
-      return hardware_buffer_->GetAHardwareBuffer();
-    }
+    AHardwareBuffer* handle() const { return handle_; }
     AHardwareBufferView(AHardwareBufferView&& src) : View(std::move(src)) {
-      hardware_buffer_ = std::move(src.hardware_buffer_);
+      handle_ = std::exchange(src.handle_, nullptr);
       file_descriptor_ = src.file_descriptor_;
       fence_fd_ = std::exchange(src.fence_fd_, nullptr);
       ahwb_written_ = std::exchange(src.ahwb_written_, nullptr);
@@ -225,17 +222,17 @@ class Tensor {
 
    protected:
     friend class Tensor;
-    AHardwareBufferView(HardwareBuffer* hardware_buffer, int file_descriptor,
+    AHardwareBufferView(AHardwareBuffer* handle, int file_descriptor,
                         int* fence_fd, FinishingFunc* ahwb_written,
                         std::function<void()>* release_callback,
                         std::unique_ptr<absl::MutexLock>&& lock)
         : View(std::move(lock)),
-          hardware_buffer_(hardware_buffer),
+          handle_(handle),
           file_descriptor_(file_descriptor),
           fence_fd_(fence_fd),
           ahwb_written_(ahwb_written),
           release_callback_(release_callback) {}
-    HardwareBuffer* hardware_buffer_;
+    AHardwareBuffer* handle_;
     int file_descriptor_;
     // The view sets some Tensor's fields. The view is released prior to tensor.
     int* fence_fd_;
@@ -288,22 +285,18 @@ class Tensor {
   class OpenGlBufferView : public View {
    public:
     GLuint name() const { return name_; }
-
     OpenGlBufferView(OpenGlBufferView&& src) : View(std::move(src)) {
       name_ = std::exchange(src.name_, GL_INVALID_INDEX);
       ssbo_read_ = std::exchange(src.ssbo_read_, nullptr);
     }
     ~OpenGlBufferView() {
       if (ssbo_read_) {
-        // TODO: update tensor to properly handle cases when
-        // multiple views were requested multiple sync fence may be needed.
         *ssbo_read_ = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
       }
     }
 
    protected:
     friend class Tensor;
-
     OpenGlBufferView(GLuint name, std::unique_ptr<absl::MutexLock>&& lock,
                      GLsync* ssbo_read)
         : View(std::move(lock)), name_(name), ssbo_read_(ssbo_read) {}
@@ -391,7 +384,7 @@ class Tensor {
   mutable std::unique_ptr<MtlResources> mtl_resources_;
 
 #ifdef MEDIAPIPE_TENSOR_USE_AHWB
-  mutable std::unique_ptr<HardwareBuffer> ahwb_;
+  mutable AHardwareBuffer* ahwb_ = nullptr;
   // Signals when GPU finished writing into SSBO so AHWB can be used then. Or
   // signals when writing into AHWB has been finished so GPU can read from SSBO.
   // Sync and FD are bound together.

mediapipe/framework/formats/tensor_ahwb.cc

@@ -10,7 +10,7 @@
 #include "absl/log/absl_check.h"
 #include "absl/log/absl_log.h"
 #include "absl/synchronization/mutex.h"
-#include "mediapipe/framework/formats/hardware_buffer.h"
+#include "mediapipe/framework/port.h"
 #include "mediapipe/gpu/gl_base.h"
 #endif  // MEDIAPIPE_TENSOR_USE_AHWB
 
@@ -97,7 +97,7 @@ class DelayedReleaser {
   DelayedReleaser(DelayedReleaser&&) = delete;
   DelayedReleaser& operator=(DelayedReleaser&&) = delete;
 
-  static void Add(std::unique_ptr<HardwareBuffer> ahwb, GLuint opengl_buffer,
+  static void Add(AHardwareBuffer* ahwb, GLuint opengl_buffer,
                   EGLSyncKHR ssbo_sync, GLsync ssbo_read,
                   Tensor::FinishingFunc&& ahwb_written,
                   std::shared_ptr<mediapipe::GlContext> gl_context,
@@ -115,8 +115,8 @@ class DelayedReleaser {
 
     // Using `new` to access a non-public constructor.
     to_release_local.emplace_back(absl::WrapUnique(new DelayedReleaser(
-        std::move(ahwb), opengl_buffer, ssbo_sync, ssbo_read,
-        std::move(ahwb_written), gl_context, std::move(callback))));
+        ahwb, opengl_buffer, ssbo_sync, ssbo_read, std::move(ahwb_written),
+        gl_context, std::move(callback))));
     for (auto it = to_release_local.begin(); it != to_release_local.end();) {
       if ((*it)->IsSignaled()) {
         it = to_release_local.erase(it);
@@ -136,6 +136,9 @@ class DelayedReleaser {
 
   ~DelayedReleaser() {
     if (release_callback_) release_callback_();
+    if (__builtin_available(android 26, *)) {
+      AHardwareBuffer_release(ahwb_);
+    }
   }
 
   bool IsSignaled() {
@@ -178,7 +181,7 @@ class DelayedReleaser {
   }
 
  protected:
-  std::unique_ptr<HardwareBuffer> ahwb_;
+  AHardwareBuffer* ahwb_;
   GLuint opengl_buffer_;
   // TODO: use wrapper instead.
   EGLSyncKHR fence_sync_;
@@ -189,12 +192,12 @@ class DelayedReleaser {
   std::function<void()> release_callback_;
   static inline std::deque<std::unique_ptr<DelayedReleaser>> to_release_;
 
-  DelayedReleaser(std::unique_ptr<HardwareBuffer> ahwb, GLuint opengl_buffer,
+  DelayedReleaser(AHardwareBuffer* ahwb, GLuint opengl_buffer,
                   EGLSyncKHR fence_sync, GLsync ssbo_read,
                   Tensor::FinishingFunc&& ahwb_written,
                   std::shared_ptr<mediapipe::GlContext> gl_context,
                   std::function<void()>&& callback)
-      : ahwb_(std::move(ahwb)),
+      : ahwb_(ahwb),
         opengl_buffer_(opengl_buffer),
         fence_sync_(fence_sync),
         ssbo_read_(ssbo_read),
@@ -211,7 +214,7 @@ Tensor::AHardwareBufferView Tensor::GetAHardwareBufferReadView() const {
   ABSL_CHECK(!(valid_ & kValidOpenGlTexture2d))
       << "Tensor conversion between OpenGL texture and AHardwareBuffer is not "
          "supported.";
-  bool transfer = ahwb_ == nullptr;
+  bool transfer = !ahwb_;
   ABSL_CHECK(AllocateAHardwareBuffer())
       << "AHardwareBuffer is not supported on the target system.";
   valid_ |= kValidAHardwareBuffer;
@@ -220,10 +223,12 @@ Tensor::AHardwareBufferView Tensor::GetAHardwareBufferReadView() const {
   } else {
     if (valid_ & kValidOpenGlBuffer) CreateEglSyncAndFd();
   }
-  return {ahwb_.get(),        ssbo_written_,
+  return {ahwb_,
+          ssbo_written_,
           &fence_fd_,  // The FD is created for SSBO -> AHWB synchronization.
           &ahwb_written_,  // Filled by SetReadingFinishedFunc.
-          &release_callback_, std::move(lock)};
+          &release_callback_,
+          std::move(lock)};
 }
 
 void Tensor::CreateEglSyncAndFd() const {
@@ -253,11 +258,12 @@ Tensor::AHardwareBufferView Tensor::GetAHardwareBufferWriteView(
   ABSL_CHECK(AllocateAHardwareBuffer(size_alignment))
       << "AHardwareBuffer is not supported on the target system.";
   valid_ = kValidAHardwareBuffer;
-  return {ahwb_.get(),
+  return {ahwb_,
           /*ssbo_written=*/-1,
-          &fence_fd_,      // For SetWritingFinishedFD.
-          &ahwb_written_,  // Filled by SetReadingFinishedFunc.
-          &release_callback_,  std::move(lock)};
+          &fence_fd_,  // For SetWritingFinishedFD.
+          &ahwb_written_,
+          &release_callback_,
+          std::move(lock)};
 }
 
 bool Tensor::AllocateAHardwareBuffer(int size_alignment) const {
@@ -270,43 +276,40 @@ bool Tensor::AllocateAHardwareBuffer(int size_alignment) const {
   }
   use_ahwb_ = true;
 
-  if (ahwb_ == nullptr) {
-    HardwareBufferSpec spec = {};
-    if (size_alignment == 0) {
-      spec.width = bytes();
-    } else {
-      // We expect allocations to be page-aligned, implicitly satisfying any
-      // requirements from Edge TPU. No need to add a check for this,
-      // since Edge TPU will check for us.
-      spec.width = AlignedToPowerOf2(bytes(), size_alignment);
+  if (__builtin_available(android 26, *)) {
+    if (ahwb_ == nullptr) {
+      AHardwareBuffer_Desc desc = {};
+      if (size_alignment == 0) {
+        desc.width = bytes();
+      } else {
+        // We expect allocations to be page-aligned, implicitly satisfying any
+        // requirements from Edge TPU. No need to add a check for this,
+        // since Edge TPU will check for us.
+        desc.width = AlignedToPowerOf2(bytes(), size_alignment);
+      }
+      desc.height = 1;
+      desc.layers = 1;
+      desc.format = AHARDWAREBUFFER_FORMAT_BLOB;
+      desc.usage = AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN |
+                   AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
+                   AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER;
+      return AHardwareBuffer_allocate(&desc, &ahwb_) == 0;
     }
-    spec.height = 1;
-    spec.layers = 1;
-    spec.format = HardwareBufferSpec::AHARDWAREBUFFER_FORMAT_BLOB;
-    spec.usage = HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN |
-                 HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
-                 HardwareBufferSpec::AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER;
-    auto new_ahwb = HardwareBuffer::Create(spec);
-    if (!new_ahwb.ok()) {
-      ABSL_LOG(ERROR) << "Allocation of NDK Hardware Buffer failed: "
-                      << new_ahwb.status();
-      return false;
-    }
-    ahwb_ = std::make_unique<HardwareBuffer>(std::move(*new_ahwb));
+    return true;
   }
-  return true;
+  return false;
 }
 
 bool Tensor::AllocateAhwbMapToSsbo() const {
   if (__builtin_available(android 26, *)) {
     if (AllocateAHardwareBuffer()) {
-      if (MapAHardwareBufferToGlBuffer(ahwb_->GetAHardwareBuffer(), bytes())
-              .ok()) {
+      if (MapAHardwareBufferToGlBuffer(ahwb_, bytes()).ok()) {
         glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
         return true;
       }
       // Unable to make OpenGL <-> AHWB binding. Use regular SSBO instead.
-      ahwb_.reset();
+      AHardwareBuffer_release(ahwb_);
+      ahwb_ = nullptr;
     }
   }
   return false;
@@ -314,11 +317,14 @@ bool Tensor::AllocateAhwbMapToSsbo() const {
 
 // Moves Cpu/Ssbo resource under the Ahwb backed memory.
 void Tensor::MoveCpuOrSsboToAhwb() const {
-  auto dest =
-      ahwb_->Lock(HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY);
-  ABSL_CHECK_OK(dest) << "Lock of AHWB failed";
+  void* dest = nullptr;
+  if (__builtin_available(android 26, *)) {
+    auto error = AHardwareBuffer_lock(
+        ahwb_, AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY, -1, nullptr, &dest);
+    ABSL_CHECK(error == 0) << "AHardwareBuffer_lock " << error;
+  }
   if (valid_ & kValidCpu) {
-    std::memcpy(*dest, cpu_buffer_, bytes());
+    std::memcpy(dest, cpu_buffer_, bytes());
     // Free CPU memory because next time AHWB is mapped instead.
     free(cpu_buffer_);
     cpu_buffer_ = nullptr;
@@ -328,7 +334,7 @@ void Tensor::MoveCpuOrSsboToAhwb() const {
       glBindBuffer(GL_SHADER_STORAGE_BUFFER, opengl_buffer_);
       const void* src = glMapBufferRange(GL_SHADER_STORAGE_BUFFER, 0, bytes(),
                                          GL_MAP_READ_BIT);
-      std::memcpy(*dest, src, bytes());
+      std::memcpy(dest, src, bytes());
       glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
       glDeleteBuffers(1, &opengl_buffer_);
     });
@@ -341,7 +347,10 @@ void Tensor::MoveCpuOrSsboToAhwb() const {
     ABSL_LOG(FATAL) << "Can't convert tensor with mask " << valid_
                     << " into AHWB.";
   }
-  ABSL_CHECK_OK(ahwb_->Unlock()) << "Unlock of AHWB failed";
+  if (__builtin_available(android 26, *)) {
+    auto error = AHardwareBuffer_unlock(ahwb_, nullptr);
+    ABSL_CHECK(error == 0) << "AHardwareBuffer_unlock " << error;
+  }
 }
 
 // SSBO is created on top of AHWB. A fence is inserted into the GPU queue before
@@ -394,52 +403,59 @@ void Tensor::ReleaseAhwbStuff() {
     if (ahwb_) {
       if (ssbo_read_ != 0 || fence_sync_ != EGL_NO_SYNC_KHR || ahwb_written_) {
         if (ssbo_written_ != -1) close(ssbo_written_);
-        DelayedReleaser::Add(std::move(ahwb_), opengl_buffer_, fence_sync_,
-                             ssbo_read_, std::move(ahwb_written_), gl_context_,
+        DelayedReleaser::Add(ahwb_, opengl_buffer_, fence_sync_, ssbo_read_,
+                             std::move(ahwb_written_), gl_context_,
                              std::move(release_callback_));
         opengl_buffer_ = GL_INVALID_INDEX;
       } else {
         if (release_callback_) release_callback_();
-        ahwb_.reset();
+        AHardwareBuffer_release(ahwb_);
       }
     }
   }
 }
 
 void* Tensor::MapAhwbToCpuRead() const {
-  if (ahwb_ != nullptr) {
-    if (!(valid_ & kValidCpu)) {
-      if ((valid_ & kValidOpenGlBuffer) && ssbo_written_ == -1) {
-        // EGLSync is failed. Use another synchronization method.
-        // TODO: Use tflite::gpu::GlBufferSync and GlActiveSync.
-        gl_context_->Run([]() { glFinish(); });
-      } else if (valid_ & kValidAHardwareBuffer) {
-        ABSL_CHECK(ahwb_written_) << "Ahwb-to-Cpu synchronization requires the "
-                                     "completion function to be set";
-        ABSL_CHECK(ahwb_written_(true))
-            << "An error oqcured while waiting for the buffer to be written";
+  if (__builtin_available(android 26, *)) {
+    if (ahwb_) {
+      if (!(valid_ & kValidCpu)) {
+        if ((valid_ & kValidOpenGlBuffer) && ssbo_written_ == -1) {
+          // EGLSync is failed. Use another synchronization method.
+          // TODO: Use tflite::gpu::GlBufferSync and GlActiveSync.
+          gl_context_->Run([]() { glFinish(); });
+        } else if (valid_ & kValidAHardwareBuffer) {
+          ABSL_CHECK(ahwb_written_)
+              << "Ahwb-to-Cpu synchronization requires the "
+                 "completion function to be set";
+          ABSL_CHECK(ahwb_written_(true))
+              << "An error oqcured while waiting for the buffer to be written";
+        }
       }
+      void* ptr;
+      auto error =
+          AHardwareBuffer_lock(ahwb_, AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
+                               ssbo_written_, nullptr, &ptr);
+      ABSL_CHECK(error == 0) << "AHardwareBuffer_lock " << error;
+      close(ssbo_written_);
+      ssbo_written_ = -1;
+      return ptr;
     }
-    auto ptr =
-        ahwb_->Lock(HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-                    ssbo_written_);
-    ABSL_CHECK_OK(ptr) << "Lock of AHWB failed";
-    close(ssbo_written_);
-    ssbo_written_ = -1;
-    return *ptr;
   }
   return nullptr;
 }
 
 void* Tensor::MapAhwbToCpuWrite() const {
-  if (ahwb_ != nullptr) {
-    // TODO: If previously acquired view is GPU write view then need
-    // to be sure that writing is finished. That's a warning: two consequent
-    // write views should be interleaved with read view.
-    auto locked_ptr =
-        ahwb_->Lock(HardwareBufferSpec::AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN);
-    ABSL_CHECK_OK(locked_ptr) << "Lock of AHWB failed";
-    return *locked_ptr;
+  if (__builtin_available(android 26, *)) {
+    if (ahwb_) {
+      // TODO: If previously acquired view is GPU write view then need
+      // to be sure that writing is finished. That's a warning: two consequent
+      // write views should be interleaved with read view.
+      void* ptr;
+      auto error = AHardwareBuffer_lock(
+          ahwb_, AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN, -1, nullptr, &ptr);
+      ABSL_CHECK(error == 0) << "AHardwareBuffer_lock " << error;
+      return ptr;
+    }
   }
   return nullptr;
 }

mediapipe/framework/formats/tensor_ahwb_gpu_test.cc

@@ -6,7 +6,6 @@
 
 #include <cstdint>
 
-#include "absl/algorithm/container.h"
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/framework/formats/tensor/views/data_types.h"
 #include "mediapipe/gpu/gpu_test_base.h"
@@ -19,7 +18,7 @@
 // Then the test requests the CPU view and compares the values.
 // Float32 and Float16 tests are there.
 
-namespace mediapipe {
+namespace {
 
 using mediapipe::Float16;
 using mediapipe::Tensor;
@@ -28,16 +27,6 @@ MATCHER_P(NearWithPrecision, precision, "") {
   return std::abs(std::get<0>(arg) - std::get<1>(arg)) < precision;
 }
 
-template <typename F = float>
-std::vector<F> CreateReferenceData(int num_elements) {
-  std::vector<F> reference;
-  reference.resize(num_elements);
-  for (int i = 0; i < num_elements; i++) {
-    reference[i] = static_cast<float>(i) / 10.0f;
-  }
-  return reference;
-}
-
 #if MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_31
 
 // Utility function to fill the GPU buffer.
@@ -121,7 +110,11 @@ TEST_F(TensorAhwbGpuTest, TestGpuToCpuFloat32) {
   });
   auto ptr = tensor.GetCpuReadView().buffer<float>();
   ASSERT_NE(ptr, nullptr);
-  std::vector<float> reference = CreateReferenceData(num_elements);
+  std::vector<float> reference;
+  reference.resize(num_elements);
+  for (int i = 0; i < num_elements; i++) {
+    reference[i] = static_cast<float>(i) / 10.0f;
+  }
   EXPECT_THAT(absl::Span<const float>(ptr, num_elements),
               testing::Pointwise(testing::FloatEq(), reference));
 }
@@ -144,7 +137,11 @@ TEST_F(TensorAhwbGpuTest, TestGpuToCpuFloat16) {
   });
   auto ptr = tensor.GetCpuReadView().buffer<Float16>();
   ASSERT_NE(ptr, nullptr);
-  std::vector<Float16> reference = CreateReferenceData<Float16>(num_elements);
+  std::vector<Float16> reference;
+  reference.resize(num_elements);
+  for (int i = 0; i < num_elements; i++) {
+    reference[i] = static_cast<float>(i) / 10.0f;
+  }
   // Precision is set to a reasonable value for Float16.
   EXPECT_THAT(absl::Span<const Float16>(ptr, num_elements),
               testing::Pointwise(NearWithPrecision(0.001), reference));
@@ -169,7 +166,11 @@ TEST_F(TensorAhwbGpuTest, TestReplacingCpuByAhwb) {
   }
   auto ptr = tensor.GetCpuReadView().buffer<float>();
   ASSERT_NE(ptr, nullptr);
-  std::vector<float> reference = CreateReferenceData(num_elements);
+  std::vector<float> reference;
+  reference.resize(num_elements);
+  for (int i = 0; i < num_elements; i++) {
+    reference[i] = static_cast<float>(i) / 10.0f;
+  }
   EXPECT_THAT(absl::Span<const float>(ptr, num_elements),
               testing::Pointwise(testing::FloatEq(), reference));
 }
@@ -193,107 +194,17 @@ TEST_F(TensorAhwbGpuTest, TestReplacingGpuByAhwb) {
   }
   auto ptr = tensor.GetCpuReadView().buffer<float>();
   ASSERT_NE(ptr, nullptr);
-  std::vector<float> reference = CreateReferenceData(num_elements);
+  std::vector<float> reference;
+  reference.resize(num_elements);
+  for (int i = 0; i < num_elements; i++) {
+    reference[i] = static_cast<float>(i) / 10.0f;
+  }
   EXPECT_THAT(absl::Span<const float>(ptr, num_elements),
               testing::Pointwise(testing::FloatEq(), reference));
 }
 
-std::vector<float> ReadGlBufferView(const Tensor::OpenGlBufferView& view,
-                                    int num_elements) {
-  glBindBuffer(GL_SHADER_STORAGE_BUFFER, view.name());
-  int bytes = num_elements * sizeof(float);
-  void* ptr =
-      glMapBufferRange(GL_SHADER_STORAGE_BUFFER, 0, bytes, GL_MAP_READ_BIT);
-  ABSL_CHECK(ptr) << "glMapBufferRange failed: " << glGetError();
-
-  std::vector<float> data;
-  data.resize(num_elements);
-  std::memcpy(data.data(), ptr, bytes);
-  glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
-  return data;
-}
-
-TEST_F(TensorAhwbGpuTest, TestGetOpenGlBufferReadViewNoAhwb) {
-  constexpr size_t kNumElements = 20;
-  std::vector<float> reference = CreateReferenceData(kNumElements);
-
-  Tensor tensor(Tensor::ElementType::kFloat32, Tensor::Shape({kNumElements}));
-  {
-    // Populate tensor on CPU and make sure view is destroyed
-    absl::c_copy(reference, tensor.GetCpuWriteView().buffer<float>());
-  }
-
-  RunInGlContext([&] {
-    // Triggers conversion to GL buffer.
-    auto ssbo_view = tensor.GetOpenGlBufferReadView();
-    ASSERT_NE(ssbo_view.name(), 0);
-    // ssbo_read_ must NOT be populated, as there's no AHWB associated with
-    // GL buffer
-    ASSERT_EQ(ssbo_view.ssbo_read_, nullptr);
-
-    std::vector<float> output = ReadGlBufferView(ssbo_view, kNumElements);
-    EXPECT_THAT(output, testing::Pointwise(testing::FloatEq(), reference));
-  });
-}
-
-TEST_F(TensorAhwbGpuTest, TestGetOpenGlBufferReadViewAhwbFromCpu) {
-  constexpr size_t kNumElements = 20;
-  std::vector<float> reference = CreateReferenceData(kNumElements);
-
-  Tensor tensor(Tensor::ElementType::kFloat32, Tensor::Shape({kNumElements}));
-  {
-    // Populate tensor on CPU and make sure view is destroyed
-    absl::c_copy(reference, tensor.GetCpuWriteView().buffer<float>());
-  }
-
-  {
-    // Make tensor to allocate ahwb and make sure view is destroyed.
-    ASSERT_NE(tensor.GetAHardwareBufferReadView().handle(), nullptr);
-  }
-
-  RunInGlContext([&] {
-    // Triggers conversion to GL buffer.
-    auto ssbo_view = tensor.GetOpenGlBufferReadView();
-    ASSERT_NE(ssbo_view.name(), 0);
-    // ssbo_read_ must be populated, so during view destruction it's set
-    // properly for further AHWB destruction
-    ASSERT_NE(ssbo_view.ssbo_read_, nullptr);
-
-    std::vector<float> output = ReadGlBufferView(ssbo_view, kNumElements);
-    EXPECT_THAT(output, testing::Pointwise(testing::FloatEq(), reference));
-  });
-}
-
-TEST_F(TensorAhwbGpuTest, TestGetOpenGlBufferReadViewAhwbFromGpu) {
-  constexpr size_t kNumElements = 20;
-  std::vector<float> reference = CreateReferenceData(kNumElements);
-
-  Tensor tensor(Tensor::ElementType::kFloat32, Tensor::Shape({kNumElements}));
-  {
-    // Make tensor to allocate ahwb and make sure view is destroyed.
-    ASSERT_NE(tensor.GetAHardwareBufferWriteView().handle(), nullptr);
-  }
-
-  RunInGlContext([&] {
-    FillGpuBuffer(tensor.GetOpenGlBufferWriteView().name(),
-                  tensor.shape().num_elements(), tensor.element_type());
-  });
-
-  RunInGlContext([&] {
-    // Triggers conversion to GL buffer.
-    auto ssbo_view = tensor.GetOpenGlBufferReadView();
-    ASSERT_NE(ssbo_view.name(), 0);
-    // ssbo_read_ must be populated, so during view destruction it's set
-    // properly for further AHWB destruction
-    ASSERT_NE(ssbo_view.ssbo_read_, nullptr);
-
-    std::vector<float> output = ReadGlBufferView(ssbo_view, kNumElements);
-    EXPECT_THAT(output, testing::Pointwise(testing::FloatEq(), reference));
-  });
-}
-
 #endif  // MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_31
-}  // namespace mediapipe
+}  // namespace
 
 #endif  // !defined(MEDIAPIPE_NO_JNI) && (__ANDROID_API__ >= 26 ||
         // defined(__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__))

mediapipe/framework/formats/tensor_ahwb_test.cc

@@ -1,5 +1,3 @@
-#include <android/hardware_buffer.h>
-
 #include "mediapipe/framework/formats/tensor.h"
 #include "testing/base/public/gmock.h"
 #include "testing/base/public/gunit.h"

mediapipe/framework/formats/yuv_image.h

@@ -15,7 +15,6 @@
 #ifndef MEDIAPIPE_FRAMEWORK_FORMATS_YUV_IMAGE_H_
 #define MEDIAPIPE_FRAMEWORK_FORMATS_YUV_IMAGE_H_
 
-#include <cstdint>
 #include <functional>
 #include <memory>
 
@@ -120,13 +119,13 @@ class YUVImage {
   ~YUVImage() { Clear(); }
 
   // Convenience constructor
-  YUVImage(libyuv::FourCC fourcc,                     //
-           std::unique_ptr<uint8_t[]> data_location,  //
-           uint8_t* data0, int stride0,               //
-           uint8_t* data1, int stride1,               //
-           uint8_t* data2, int stride2,               //
+  YUVImage(libyuv::FourCC fourcc,                   //
+           std::unique_ptr<uint8[]> data_location,  //
+           uint8* data0, int stride0,               //
+           uint8* data1, int stride1,               //
+           uint8* data2, int stride2,               //
            int width, int height, int bit_depth = 8) {
-    uint8_t* tmp = data_location.release();
+    uint8* tmp = data_location.release();
     std::function<void()> deallocate = [tmp]() { delete[] tmp; };
     Initialize(fourcc,          //
                deallocate,      //
@@ -138,14 +137,14 @@ class YUVImage {
 
   // Convenience constructor to construct the YUVImage with data stored
   // in three unique_ptrs.
-  YUVImage(libyuv::FourCC fourcc,                          //
-           std::unique_ptr<uint8_t[]> data0, int stride0,  //
-           std::unique_ptr<uint8_t[]> data1, int stride1,  //
-           std::unique_ptr<uint8_t[]> data2, int stride2,  //
+  YUVImage(libyuv::FourCC fourcc,                        //
+           std::unique_ptr<uint8[]> data0, int stride0,  //
+           std::unique_ptr<uint8[]> data1, int stride1,  //
+           std::unique_ptr<uint8[]> data2, int stride2,  //
            int width, int height, int bit_depth = 8) {
-    uint8_t* tmp0 = data0.release();
-    uint8_t* tmp1 = data1.release();
-    uint8_t* tmp2 = data2.release();
+    uint8* tmp0 = data0.release();
+    uint8* tmp1 = data1.release();
+    uint8* tmp2 = data2.release();
     std::function<void()> deallocate = [tmp0, tmp1, tmp2]() {
       delete[] tmp0;
       delete[] tmp1;
@@ -178,9 +177,9 @@ class YUVImage {
   // pixel format it holds.
   void Initialize(libyuv::FourCC fourcc,                        //
                   std::function<void()> deallocation_function,  //
-                  uint8_t* data0, int stride0,                  //
-                  uint8_t* data1, int stride1,                  //
-                  uint8_t* data2, int stride2,                  //
+                  uint8* data0, int stride0,                    //
+                  uint8* data1, int stride1,                    //
+                  uint8* data2, int stride2,                    //
                   int width, int height, int bit_depth = 8) {
     Clear();
     deallocation_function_ = deallocation_function;
@@ -215,7 +214,7 @@ class YUVImage {
 
   // Getters.
   libyuv::FourCC fourcc() const { return fourcc_; }
-  const uint8_t* data(int index) const { return data_[index]; }
+  const uint8* data(int index) const { return data_[index]; }
   int stride(int index) const { return stride_[index]; }
   int width() const { return width_; }
   int height() const { return height_; }
@@ -227,7 +226,7 @@ class YUVImage {
 
   // Setters.
   void set_fourcc(libyuv::FourCC fourcc) { fourcc_ = fourcc; }
-  uint8_t* mutable_data(int index) { return data_[index]; }
+  uint8* mutable_data(int index) { return data_[index]; }
   void set_stride(int index, int stride) { stride_[index] = stride; }
   void set_width(int width) { width_ = width; }
   void set_height(int height) { height_ = height; }
@@ -242,7 +241,7 @@ class YUVImage {
   std::function<void()> deallocation_function_;
 
   libyuv::FourCC fourcc_ = libyuv::FOURCC_ANY;
-  uint8_t* data_[kMaxNumPlanes];
+  uint8* data_[kMaxNumPlanes];
   int stride_[kMaxNumPlanes];
   int width_ = 0;
   int height_ = 0;

mediapipe/framework/port.h

@@ -50,7 +50,7 @@
 // but may or may not still be able to run other OpenGL code.
 #if !defined(MEDIAPIPE_DISABLE_GL_COMPUTE) &&                                  \
     (defined(__APPLE__) || defined(__EMSCRIPTEN__) || MEDIAPIPE_DISABLE_GPU || \
-     MEDIAPIPE_USING_LEGACY_SWIFTSHADER)
+     MEDIAPIPE_USING_SWIFTSHADER)
 #define MEDIAPIPE_DISABLE_GL_COMPUTE
 #endif
 
@@ -104,9 +104,4 @@
 #endif
 #endif  // MEDIAPIPE_HAS_RTTI
 
-// AHardware buffers are only available since Android API 26.
-#if (__ANDROID_API__ >= 26)
-#define MEDIAPIPE_GPU_BUFFER_USE_AHWB 1
-#endif
-
 #endif  // MEDIAPIPE_FRAMEWORK_PORT_H_

mediapipe/framework/port/build_config.bzl

@@ -26,7 +26,7 @@ def replace_suffix(string, old, new):
 
 def mediapipe_ts_library(
         name,
-        srcs = [],
+        srcs,
         visibility = None,
         deps = [],
         testonly = 0,

mediapipe/framework/tool/BUILD

@@ -13,13 +13,13 @@
 # limitations under the License.
 #
 
-load("//mediapipe/framework:mediapipe_cc_test.bzl", "mediapipe_cc_test")
 load("//mediapipe/framework/port:build_config.bzl", "mediapipe_proto_library")
 load(
     "//mediapipe/framework/tool:mediapipe_graph.bzl",
     "data_as_c_string",
     "mediapipe_binary_graph",
 )
+load("//mediapipe/framework:mediapipe_cc_test.bzl", "mediapipe_cc_test")
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
 
 licenses(["notice"])
@@ -616,7 +616,6 @@ cc_test(
         "//mediapipe/framework:calculator_runner",
         "//mediapipe/framework/port:gtest_main",
         "//mediapipe/framework/port:parse_text_proto",
-        "@com_google_absl//absl/functional:bind_front",
         "@com_google_absl//absl/strings",
     ],
 )
@@ -857,7 +856,6 @@ cc_library(
 mediapipe_cc_test(
     name = "switch_demux_calculator_test",
     srcs = ["switch_demux_calculator_test.cc"],
-    requires_full_emulation = False,
     deps = [
         ":container_util",
         ":switch_demux_calculator",
@@ -893,7 +891,6 @@ cc_library(
 mediapipe_cc_test(
     name = "switch_mux_calculator_test",
     srcs = ["switch_mux_calculator_test.cc"],
-    requires_full_emulation = False,
     deps = [
         ":container_util",
         ":switch_mux_calculator",

mediapipe/framework/tool/sink_test.cc

@@ -17,7 +17,6 @@
 #include <memory>
 #include <vector>
 
-#include "absl/functional/bind_front.h"
 #include "absl/strings/string_view.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/calculator_runner.h"

mediapipe/gpu/BUILD

@@ -196,7 +196,6 @@ cc_library(
         ":gpu_buffer_format",
         "//mediapipe/framework:executor",
         "//mediapipe/framework:mediapipe_profiling",
-        "//mediapipe/framework:port",
         "//mediapipe/framework:timestamp",
         "//mediapipe/framework/port:logging",
         "//mediapipe/framework/port:ret_check",
@@ -210,7 +209,6 @@ cc_library(
         "@com_google_absl//absl/memory",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
-        "@com_google_absl//absl/strings:str_format",
         "@com_google_absl//absl/synchronization",
     ] + select({
         "//conditions:default": [],
@@ -513,19 +511,11 @@ cc_library(
         ],
     }),
     deps = [
-        ":gl_base_hdr",
-        ":gl_context",
         ":gl_texture_buffer",
-        ":gl_texture_view",
         ":gpu_buffer_format",
         ":gpu_buffer_storage",
         ":image_frame_view",
-        "//mediapipe/framework:port",
-        "//mediapipe/framework/formats:ahwb_view",
         "//mediapipe/framework/formats:image_frame",
-        "//mediapipe/framework/port:ret_check",
-        "//third_party/GL:EGL_headers",
-        "@com_google_absl//absl/log:absl_check",
         "@com_google_absl//absl/strings:str_format",
     ],
 )
@@ -671,8 +661,6 @@ cc_library(
         "//mediapipe/framework/port:ret_check",
         "@com_google_absl//absl/base:core_headers",
         "@com_google_absl//absl/log:absl_check",
-        "@com_google_absl//absl/log:absl_log",
-        "@com_google_absl//absl/status",
     ] + select({
         "//conditions:default": [],
         "//mediapipe:apple": [
@@ -1235,13 +1223,9 @@ mediapipe_cc_test(
     ],
     requires_full_emulation = True,
     deps = [
-        ":gl_texture_buffer",
-        ":gl_texture_util",
         ":gpu_buffer_format",
         ":gpu_buffer_storage_ahwb",
-        ":gpu_test_base",
         "//mediapipe/framework/port:gtest_main",
-        "//mediapipe/framework/tool:test_util",
     ],
 )
 

mediapipe/gpu/gl_calculator_helper.cc

@@ -57,8 +57,8 @@ void GlCalculatorHelper::InitializeForTest(GpuResources* gpu_resources) {
 
 // static
 absl::Status GlCalculatorHelper::UpdateContract(CalculatorContract* cc,
-                                                bool request_gpu_as_optional) {
-  if (request_gpu_as_optional) {
+                                                bool requesst_gpu_as_optional) {
+  if (requesst_gpu_as_optional) {
     cc->UseService(kGpuService).Optional();
   } else {
     cc->UseService(kGpuService);

mediapipe/gpu/gl_calculator_helper.h

@@ -68,7 +68,7 @@ class GlCalculatorHelper {
   // This method can be called from GetContract to set up the needed GPU
   // resources.
   static absl::Status UpdateContract(CalculatorContract* cc,
-                                     bool request_gpu_as_optional = false);
+                                     bool requesst_gpu_as_optional = false);
 
   // This method can be called from FillExpectations to set the correct types
   // for the shared GL input side packet(s).

mediapipe/gpu/gl_context.cc

@@ -26,9 +26,7 @@
 #include "absl/log/absl_log.h"
 #include "absl/memory/memory.h"
 #include "absl/status/status.h"
-#include "absl/strings/str_format.h"
 #include "absl/synchronization/mutex.h"
-#include "mediapipe/framework/port.h"  // IWYU pragma: keep
 #include "mediapipe/framework/port/ret_check.h"
 #include "mediapipe/framework/port/status.h"
 #include "mediapipe/framework/port/status_builder.h"
@@ -50,17 +48,6 @@
 
 namespace mediapipe {
 
-namespace internal_gl_context {
-
-bool IsOpenGlVersionSameOrAbove(const OpenGlVersion& version,
-                                const OpenGlVersion& expected_version) {
-  return (version.major == expected_version.major &&
-          version.minor >= expected_version.minor) ||
-         version.major > expected_version.major;
-}
-
-}  // namespace internal_gl_context
-
 static void SetThreadName(const char* name) {
 #if defined(__GLIBC_PREREQ)
 #define LINUX_STYLE_SETNAME_NP __GLIBC_PREREQ(2, 12)
@@ -651,11 +638,6 @@ class GlSyncWrapper {
     // TODO: do something if the wait fails?
   }
 
-  // This method exists only for investigation purposes to distinguish stack
-  // traces: external vs. internal context.
-  // TODO: remove after glWaitSync crashes are resolved.
-  void WaitOnGpuExternalContext() { glWaitSync(sync_, 0, GL_TIMEOUT_IGNORED); }
-
   void WaitOnGpu() {
     if (!sync_) return;
       // WebGL2 specifies a waitSync call, but since cross-context
@@ -663,33 +645,6 @@ class GlSyncWrapper {
       // a warning when it's called, so let's just skip the call. See
       // b/184637485 for details.
 #ifndef __EMSCRIPTEN__
-
-    if (!GlContext::IsAnyContextCurrent()) {
-      // glWaitSync must be called on with some context current. Doing the
-      // opposite doesn't necessarily result in a crash or GL error. Hence,
-      // just logging an error and skipping the call.
-      ABSL_LOG_FIRST_N(ERROR, 1)
-          << "An attempt to wait for a sync without any context current.";
-      return;
-    }
-
-    auto context = GlContext::GetCurrent();
-    if (context == nullptr) {
-      // This can happen when WaitOnGpu is invoked on an external context,
-      // created by other than GlContext::Create means.
-      WaitOnGpuExternalContext();
-      return;
-    }
-
-    // GlContext::ShouldUseFenceSync guards creation of sync objects, so this
-    // CHECK should never fail if clients use MediaPipe APIs in an intended way.
-    // TODO: remove after glWaitSync crashes are resolved.
-    ABSL_CHECK(context->ShouldUseFenceSync()) << absl::StrFormat(
-        "An attempt to wait for a sync when it should not be used. (OpenGL "
-        "Version "
-        "%d.%d)",
-        context->gl_major_version(), context->gl_minor_version());
-
     glWaitSync(sync_, 0, GL_TIMEOUT_IGNORED);
 #endif
   }
@@ -742,13 +697,10 @@ class GlFenceSyncPoint : public GlSyncPoint {
 
   void Wait() override {
     if (!sync_) return;
-    if (GlContext::IsAnyContextCurrent()) {
+    gl_context_->Run([this] {
+      // TODO: must this run on the original context??
       sync_.Wait();
-      return;
-    }
-    // In case a current GL context is not available, we fall back using the
-    // captured gl_context_.
-    gl_context_->Run([this] { sync_.Wait(); });
+    });
   }
 
   void WaitOnGpu() override {
@@ -860,25 +812,15 @@ class GlNopSyncPoint : public GlSyncPoint {
 #endif
 
 bool GlContext::ShouldUseFenceSync() const {
-  using internal_gl_context::OpenGlVersion;
-#if defined(__EMSCRIPTEN__)
+#ifdef __EMSCRIPTEN__
   // In Emscripten the glWaitSync function is non-null depending on linkopts,
-  // but only works in a WebGL2 context.
-  constexpr OpenGlVersion kMinVersionSyncAvaiable = {.major = 3, .minor = 0};
-#elif defined(MEDIAPIPE_MOBILE)
-  // OpenGL ES, glWaitSync is available since 3.0
-  constexpr OpenGlVersion kMinVersionSyncAvaiable = {.major = 3, .minor = 0};
+  // but only works in a WebGL2 context, so fall back to use Finish if it is a
+  // WebGL1/ES2 context.
+  // TODO: apply this more generally once b/152794517 is fixed.
+  return gl_major_version() > 2;
 #else
-  // TODO: specify major/minor version per remaining platforms.
-  // By default, ignoring major/minor version requirement for backward
-  // compatibility.
-  constexpr OpenGlVersion kMinVersionSyncAvaiable = {.major = 0, .minor = 0};
-#endif
-
-  return SymbolAvailable(&glWaitSync) &&
-         internal_gl_context::IsOpenGlVersionSameOrAbove(
-             {.major = gl_major_version(), .minor = gl_minor_version()},
-             kMinVersionSyncAvaiable);
+  return SymbolAvailable(&glWaitSync);
+#endif  // __EMSCRIPTEN__
 }
 
 std::shared_ptr<GlSyncPoint> GlContext::CreateSyncToken() {

mediapipe/gpu/gl_context.h

@@ -71,8 +71,6 @@ typedef std::function<void()> GlVoidFunction;
 typedef std::function<absl::Status()> GlStatusFunction;
 
 class GlContext;
-// TODO: remove after glWaitSync crashes are resolved.
-class GlSyncWrapper;
 
 // Generic interface for synchronizing access to a shared resource from a
 // different context. This is an abstract class to keep users from
@@ -192,7 +190,8 @@ class GlContext : public std::enable_shared_from_this<GlContext> {
   // Like Run, but does not wait.
   void RunWithoutWaiting(GlVoidFunction gl_func);
 
-  // Returns a synchronization token for this GlContext.
+  // Returns a synchronization token.
+  // This should not be called outside of the GlContext thread.
   std::shared_ptr<GlSyncPoint> CreateSyncToken();
 
   // If another part of the framework calls glFinish, it should call this
@@ -331,9 +330,6 @@ class GlContext : public std::enable_shared_from_this<GlContext> {
       SyncTokenTypeForTest type);
 
  private:
-  // TODO: remove after glWaitSync crashes are resolved.
-  friend GlSyncWrapper;
-
   GlContext();
 
   bool ShouldUseFenceSync() const;
@@ -492,18 +488,6 @@ ABSL_DEPRECATED(
 const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
                                                      int plane);
 
-namespace internal_gl_context {
-
-struct OpenGlVersion {
-  int major;
-  int minor;
-};
-
-bool IsOpenGlVersionSameOrAbove(const OpenGlVersion& version,
-                                const OpenGlVersion& expected_version);
-
-}  // namespace internal_gl_context
-
 }  // namespace mediapipe
 
 #endif  // MEDIAPIPE_GPU_GL_CONTEXT_H_

mediapipe/gpu/gl_context_webgl.cc

@@ -32,7 +32,7 @@ namespace mediapipe {
 // TODO: Handle webGL "context lost" and "context restored" events.
 GlContext::StatusOrGlContext GlContext::Create(std::nullptr_t nullp,
                                                bool create_thread) {
-  return Create(static_cast<EMSCRIPTEN_WEBGL_CONTEXT_HANDLE>(0), create_thread);
+  return Create(0, create_thread);
 }
 
 GlContext::StatusOrGlContext GlContext::Create(const GlContext& share_context,

mediapipe/gpu/gl_texture_buffer.cc

@@ -14,8 +14,6 @@
 
 #include "mediapipe/gpu/gl_texture_buffer.h"
 
-#include <cstdint>
-
 #include "absl/log/absl_check.h"
 #include "absl/log/absl_log.h"
 #include "mediapipe/framework/formats/image_frame.h"
@@ -133,13 +131,6 @@ bool GlTextureBuffer::CreateInternal(const void* data, int alignment) {
       SymbolAvailable(&glTexStorage2D)) {
     ABSL_CHECK(data == nullptr) << "unimplemented";
     glTexStorage2D(target_, 1, info.gl_internal_format, width_, height_);
-  } else if (info.immutable) {
-    ABSL_CHECK(SymbolAvailable(&glTexStorage2D) &&
-               context->GetGlVersion() != GlVersion::kGLES2)
-        << "Immutable GpuBuffer format requested is not supported in this "
-        << "GlContext. Format was " << static_cast<uint32_t>(format_);
-    ABSL_CHECK(data == nullptr) << "unimplemented";
-    glTexStorage2D(target_, 1, info.gl_internal_format, width_, height_);
   } else {
     glTexImage2D(target_, 0 /* level */, info.gl_internal_format, width_,
                  height_, 0 /* border */, info.gl_format, info.gl_type, data);

mediapipe/gpu/gl_texture_buffer.h

@@ -19,7 +19,6 @@
 #define MEDIAPIPE_GPU_GL_TEXTURE_BUFFER_H_
 
 #include <atomic>
-#include <memory>
 
 #include "absl/memory/memory.h"
 #include "mediapipe/framework/formats/image_frame.h"

mediapipe/gpu/gl_thread_collector.h

@@ -17,7 +17,7 @@
 
 #include <cstdlib>
 
-#if defined(MEDIAPIPE_USING_LEGACY_SWIFTSHADER)
+#if defined(MEDIAPIPE_USING_SWIFTSHADER)
 #define MEDIAPIPE_NEEDS_GL_THREAD_COLLECTOR 1
 #endif
 

mediapipe/gpu/gpu_buffer_format.cc

@@ -35,10 +35,6 @@ namespace mediapipe {
 #endif  // GL_HALF_FLOAT_OES
 #endif  // __EMSCRIPTEN__
 
-#ifndef GL_RGBA8
-#define GL_RGBA8 0x8058
-#endif  // GL_RGBA8
-
 #if !MEDIAPIPE_DISABLE_GPU
 #ifdef GL_ES_VERSION_2_0
 static void AdaptGlTextureInfoForGLES2(GlTextureInfo* info) {
@@ -167,14 +163,6 @@ const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
            {
                {GL_RGBA32F, GL_RGBA, GL_FLOAT, 1},
            }},
-          {GpuBufferFormat::kImmutableRGBAFloat128,
-           {
-               {GL_RGBA32F, GL_RGBA, GL_FLOAT, 1, true /* immutable */},
-           }},
-          {GpuBufferFormat::kImmutableRGBA32,
-           {
-               {GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, 1, true /* immutable */},
-           }},
       }};
 
   static const auto* gles2_format_info = ([] {
@@ -218,7 +206,6 @@ const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
 
 ImageFormat::Format ImageFormatForGpuBufferFormat(GpuBufferFormat format) {
   switch (format) {
-    case GpuBufferFormat::kImmutableRGBA32:
     case GpuBufferFormat::kBGRA32:
       // TODO: verify we are handling order of channels correctly.
       return ImageFormat::SRGBA;
@@ -234,11 +221,10 @@ ImageFormat::Format ImageFormatForGpuBufferFormat(GpuBufferFormat format) {
       return ImageFormat::SRGB;
     case GpuBufferFormat::kTwoComponentFloat32:
       return ImageFormat::VEC32F2;
-    case GpuBufferFormat::kImmutableRGBAFloat128:
     case GpuBufferFormat::kRGBAFloat128:
       return ImageFormat::VEC32F4;
     case GpuBufferFormat::kRGBA32:
-      return ImageFormat::SRGBA;
+      // TODO: this likely maps to ImageFormat::SRGBA
     case GpuBufferFormat::kGrayHalf16:
     case GpuBufferFormat::kOneComponent8Alpha:
     case GpuBufferFormat::kOneComponent8Red: