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Make MuxCalculator with DefaultInputStreamHandler to handle graph closure gracefully

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PiperOrigin-RevId: 489336722
This commit is contained in:
MediaPipe Team 2022-11-17 16:28:08 -08:00 committed by Copybara-Service
parent a7bd725e65
commit ab3a5f0fbf
2 changed files with 10 additions and 10 deletions
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4
mediapipe/calculators/core/mux_calculator.cc
View File

@ -41,6 +41,10 @@ class MuxCalculator : public Node {
StreamHandler("MuxInputStreamHandler"));
absl::Status Process(CalculatorContext* cc) final {
if (kSelect(cc).IsStream() && kSelect(cc).IsEmpty()) {
return absl::OkStatus();
}
int select = *kSelect(cc);
RET_CHECK(0 <= select && select < kIn(cc).Count());
if (!kIn(cc)[select].IsEmpty()) {

16
mediapipe/calculators/core/mux_calculator_test.cc
View File

@ -439,7 +439,7 @@ TEST(MuxCalculatorTest, HandlesCloseGracefully) {
EXPECT_TRUE(output_packets.empty());
}
TEST(MuxCalculatorTest, CrashesOnCloseWithDeafultInputStreamHandler) {
TEST(MuxCalculatorTest, HandlesCloseGracefullyWithDeafultInputStreamHandler) {
CalculatorGraphConfig config =
mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(
R"pb(
@ -480,15 +480,11 @@ TEST(MuxCalculatorTest, CrashesOnCloseWithDeafultInputStreamHandler) {
MP_ASSERT_OK(graph.AddPacketToInputStream(
"value_0", MakePacket<int>(0).At(Timestamp(1000))));
MP_ASSERT_OK(graph.WaitUntilIdle());
// Currently MuxCalculator crashes with a correct packet set from
// DefaultInputStreamHandler. The SELECT packet is missing at Timestamp 1000,
// and an empty packet is the correct representation of that.
EXPECT_DEATH(
{
(void)graph.CloseAllInputStreams();
(void)graph.WaitUntilDone();
},
"Check failed: payload_");
MP_ASSERT_OK(graph.CloseAllInputStreams());
MP_ASSERT_OK(graph.WaitUntilDone());
ASSERT_EQ(output_packets.size(), 1);
EXPECT_TRUE(output_packets[0].IsEmpty());
}
} // namespace