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Move stream API landmarks_projection to third_party.

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PiperOrigin-RevId: 563246209
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MediaPipe Team 2023-09-06 16:18:32 -07:00 committed by Copybara-Service
parent 7252f6f2e7
commit a9da6d325c
4 changed files with 115 additions and 0 deletions
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27
mediapipe/framework/api2/stream/BUILD
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@ -2,6 +2,33 @@ package(default_visibility = ["//visibility:public"])
licenses(["notice"])
cc_library(
name = "landmarks_projection",
srcs = ["landmarks_projection.cc"],
hdrs = ["landmarks_projection.h"],
deps = [
"//mediapipe/calculators/util:landmark_projection_calculator",
"//mediapipe/framework/api2:builder",
"//mediapipe/framework/formats:landmark_cc_proto",
],
)
cc_test(
name = "landmarks_projection_test",
srcs = ["landmarks_projection_test.cc"],
deps = [
":landmarks_projection",
"//mediapipe/framework:calculator_framework",
"//mediapipe/framework/api2:builder",
"//mediapipe/framework/formats:landmark_cc_proto",
"//mediapipe/framework/port:gtest",
"//mediapipe/framework/port:gtest_main",
"//mediapipe/framework/port:parse_text_proto",
"//mediapipe/framework/port:status",
"//mediapipe/framework/port:status_matchers",
],
)
cc_library(
name = "loopback",
hdrs = ["loopback.h"],

20
mediapipe/framework/api2/stream/landmarks_projection.cc Normal file
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@ -0,0 +1,20 @@
#include "mediapipe/framework/api2/stream/landmarks_projection.h"
#include <array>
#include "mediapipe/framework/api2/builder.h"
#include "mediapipe/framework/formats/landmark.pb.h"
namespace mediapipe::api2::builder {
Stream<mediapipe::NormalizedLandmarkList> ProjectLandmarks(
Stream<mediapipe::NormalizedLandmarkList> landmarks,
Stream<std::array<float, 16>> projection_matrix, Graph& graph) {
auto& projector = graph.AddNode("LandmarkProjectionCalculator");
landmarks.ConnectTo(projector.In("NORM_LANDMARKS"));
projection_matrix.ConnectTo(projector.In("PROJECTION_MATRIX"));
return projector.Out("NORM_LANDMARKS")
.Cast<mediapipe::NormalizedLandmarkList>();
}
} // namespace mediapipe::api2::builder

23
mediapipe/framework/api2/stream/landmarks_projection.h Normal file
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@ -0,0 +1,23 @@
#ifndef MEDIAPIPE_FRAMEWORK_API2_STREAM_LANDMARKS_PROJECTION_H_
#define MEDIAPIPE_FRAMEWORK_API2_STREAM_LANDMARKS_PROJECTION_H_
#include <array>
#include "mediapipe/framework/api2/builder.h"
#include "mediapipe/framework/formats/landmark.pb.h"
namespace mediapipe::api2::builder {
// Updates @graph to project predicted @landmarks back to the original @image
// based on @projection_matrix
//
// @landmarks - landmarks (NormalizedLandmarkList) stream, output from the model
// @projection_matrix - matrix that stores the preprocessing information
// @graph - mediapipe graph to update.
Stream<mediapipe::NormalizedLandmarkList> ProjectLandmarks(
Stream<mediapipe::NormalizedLandmarkList> landmarks,
Stream<std::array<float, 16>> projection_matrix, Graph& graph);
} // namespace mediapipe::api2::builder
#endif // MEDIAPIPE_FRAMEWORK_API2_STREAM_LANDMARKS_PROJECTION_H_

45
mediapipe/framework/api2/stream/landmarks_projection_test.cc Normal file
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@ -0,0 +1,45 @@
#include "mediapipe/framework/api2/stream/landmarks_projection.h"
#include <array>
#include "mediapipe/framework/api2/builder.h"
#include "mediapipe/framework/calculator_framework.h"
#include "mediapipe/framework/formats/landmark.pb.h"
#include "mediapipe/framework/port/gmock.h"
#include "mediapipe/framework/port/gtest.h"
#include "mediapipe/framework/port/parse_text_proto.h"
#include "mediapipe/framework/port/status_matchers.h"
namespace mediapipe::api2::builder {
namespace {
TEST(LandmarksProjection, ProjectLandmarks) {
mediapipe::api2::builder::Graph graph;
Stream<NormalizedLandmarkList> landmarks =
graph.In("NORM_LANDMARKS").Cast<NormalizedLandmarkList>();
Stream<std::array<float, 16>> projection_matrix =
graph.In("PROJECTION_MATRIX").Cast<std::array<float, 16>>();
Stream<NormalizedLandmarkList> result =
ProjectLandmarks(landmarks, projection_matrix, graph);
result.SetName("landmarks_value");
EXPECT_THAT(
graph.GetConfig(),
EqualsProto(mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
node {
calculator: "LandmarkProjectionCalculator"
input_stream: "NORM_LANDMARKS:__stream_0"
input_stream: "PROJECTION_MATRIX:__stream_1"
output_stream: "NORM_LANDMARKS:landmarks_value"
}
input_stream: "NORM_LANDMARKS:__stream_0"
input_stream: "PROJECTION_MATRIX:__stream_1"
)pb")));
CalculatorGraph calcualtor_graph;
MP_EXPECT_OK(calcualtor_graph.Initialize(graph.GetConfig()));
}
} // namespace
} // namespace mediapipe::api2::builder