Revert "Distinguish between send and receive video codecs"

This reverts commit 18314bd8d2cb27fa58e4d304bbc428e3ed1736ba.

Reason for revert: Breaks downstream test.

Original change's description:
> Distinguish between send and receive video codecs
> 
> Even though send and receive codecs are the same,
> they might have different support in HW.
> Distinguish between send and receive codecs to be able to keep
> track of which codecs have HW support.
> 
> Bug: chromium:1029737
> Change-Id: I16a80da44c5061ca42f2aabda76e6bf0b879bf7b
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161306
> Reviewed-by: Anders Carlsson <andersc@webrtc.org>
> Reviewed-by: Steve Anton <steveanton@webrtc.org>
> Commit-Queue: Johannes Kron <kron@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#30041}

TBR=steveanton@webrtc.org,andersc@webrtc.org,kron@webrtc.org

Change-Id: I7e5807460006db613e9b3b369ec6036b88f164fd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1029737
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161662
Reviewed-by: Johannes Kron <kron@webrtc.org>
Commit-Queue: Johannes Kron <kron@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30042}
diff --git a/api/test/video/function_video_decoder_factory.h b/api/test/video/function_video_decoder_factory.h
index 23214cc..03a4323 100644
--- a/api/test/video/function_video_decoder_factory.h
+++ b/api/test/video/function_video_decoder_factory.h
@@ -33,14 +33,11 @@
       std::function<std::unique_ptr<VideoDecoder>(const SdpVideoFormat&)>
           create)
       : create_(std::move(create)) {}
-  FunctionVideoDecoderFactory(
-      std::function<std::unique_ptr<VideoDecoder>()> create,
-      std::vector<SdpVideoFormat> sdp_video_formats)
-      : create_([create](const SdpVideoFormat&) { return create(); }),
-        sdp_video_formats_(sdp_video_formats) {}
 
+  // Unused by tests.
   std::vector<SdpVideoFormat> GetSupportedFormats() const override {
-    return sdp_video_formats_;
+    RTC_NOTREACHED();
+    return {};
   }
 
   std::unique_ptr<VideoDecoder> CreateVideoDecoder(
@@ -51,7 +48,6 @@
  private:
   const std::function<std::unique_ptr<VideoDecoder>(const SdpVideoFormat&)>
       create_;
-  const std::vector<SdpVideoFormat> sdp_video_formats_;
 };
 
 }  // namespace test
diff --git a/media/base/fake_media_engine.cc b/media/base/fake_media_engine.cc
index f194da2..c31ef97 100644
--- a/media/base/fake_media_engine.cc
+++ b/media/base/fake_media_engine.cc
@@ -567,8 +567,7 @@
     : capture_(false), fail_create_channel_(false) {
   // Add a fake video codec. Note that the name must not be "" as there are
   // sanity checks against that.
-  send_codecs_.push_back(VideoCodec(0, "fake_video_codec"));
-  recv_codecs_.push_back(VideoCodec(0, "fake_video_codec"));
+  codecs_.push_back(VideoCodec(0, "fake_video_codec"));
 }
 RtpCapabilities FakeVideoEngine::GetCapabilities() const {
   return RtpCapabilities();
@@ -599,22 +598,12 @@
   RTC_DCHECK(it != channels_.end());
   channels_.erase(it);
 }
-std::vector<VideoCodec> FakeVideoEngine::send_codecs() const {
-  return send_codecs_;
+std::vector<VideoCodec> FakeVideoEngine::codecs() const {
+  return codecs_;
 }
-
-std::vector<VideoCodec> FakeVideoEngine::recv_codecs() const {
-  return recv_codecs_;
+void FakeVideoEngine::SetCodecs(const std::vector<VideoCodec> codecs) {
+  codecs_ = codecs;
 }
-
-void FakeVideoEngine::SetSendCodecs(const std::vector<VideoCodec> codecs) {
-  send_codecs_ = codecs;
-}
-
-void FakeVideoEngine::SetRecvCodecs(const std::vector<VideoCodec> codecs) {
-  recv_codecs_ = codecs;
-}
-
 bool FakeVideoEngine::SetCapture(bool capture) {
   capture_ = capture;
   return true;
@@ -638,8 +627,7 @@
   voice_->SetSendCodecs(codecs);
 }
 void FakeMediaEngine::SetVideoCodecs(const std::vector<VideoCodec>& codecs) {
-  video_->SetSendCodecs(codecs);
-  video_->SetRecvCodecs(codecs);
+  video_->SetCodecs(codecs);
 }
 
 FakeVoiceMediaChannel* FakeMediaEngine::GetVoiceChannel(size_t index) {
diff --git a/media/base/fake_media_engine.h b/media/base/fake_media_engine.h
index 7082132..3df8f85 100644
--- a/media/base/fake_media_engine.h
+++ b/media/base/fake_media_engine.h
@@ -559,16 +559,13 @@
       override;
   FakeVideoMediaChannel* GetChannel(size_t index);
   void UnregisterChannel(VideoMediaChannel* channel);
-  std::vector<VideoCodec> send_codecs() const override;
-  std::vector<VideoCodec> recv_codecs() const override;
-  void SetSendCodecs(const std::vector<VideoCodec> codecs);
-  void SetRecvCodecs(const std::vector<VideoCodec> codecs);
+  std::vector<VideoCodec> codecs() const override;
+  void SetCodecs(const std::vector<VideoCodec> codecs);
   bool SetCapture(bool capture);
 
  private:
   std::vector<FakeVideoMediaChannel*> channels_;
-  std::vector<VideoCodec> send_codecs_;
-  std::vector<VideoCodec> recv_codecs_;
+  std::vector<VideoCodec> codecs_;
   bool capture_;
   VideoOptions options_;
   bool fail_create_channel_;
diff --git a/media/base/media_engine.h b/media/base/media_engine.h
index 841b2b6..173df50 100644
--- a/media/base/media_engine.h
+++ b/media/base/media_engine.h
@@ -99,9 +99,7 @@
       webrtc::VideoBitrateAllocatorFactory*
           video_bitrate_allocator_factory) = 0;
 
-  virtual std::vector<VideoCodec> send_codecs() const = 0;
-  virtual std::vector<VideoCodec> recv_codecs() const = 0;
-
+  virtual std::vector<VideoCodec> codecs() const = 0;
   virtual RtpCapabilities GetCapabilities() const = 0;
 };
 
diff --git a/media/engine/fake_webrtc_video_engine.cc b/media/engine/fake_webrtc_video_engine.cc
index ac02356..0ee2bcc 100644
--- a/media/engine/fake_webrtc_video_engine.cc
+++ b/media/engine/fake_webrtc_video_engine.cc
@@ -117,14 +117,6 @@
   supported_codec_formats_.push_back(format);
 }
 
-void FakeWebRtcVideoDecoderFactory::AddSupportedVideoCodecType(
-    const std::string& name) {
-  // This is to match the default H264 params of cricket::VideoCodec.
-  cricket::VideoCodec video_codec(name);
-  supported_codec_formats_.push_back(
-      webrtc::SdpVideoFormat(video_codec.name, video_codec.params));
-}
-
 int FakeWebRtcVideoDecoderFactory::GetNumCreatedDecoders() {
   return num_created_decoders_;
 }
diff --git a/media/engine/fake_webrtc_video_engine.h b/media/engine/fake_webrtc_video_engine.h
index 51d7c66..7b32ac8 100644
--- a/media/engine/fake_webrtc_video_engine.h
+++ b/media/engine/fake_webrtc_video_engine.h
@@ -68,7 +68,6 @@
 
   void DecoderDestroyed(FakeWebRtcVideoDecoder* decoder);
   void AddSupportedVideoCodecType(const webrtc::SdpVideoFormat& format);
-  void AddSupportedVideoCodecType(const std::string& name);
   int GetNumCreatedDecoders();
   const std::vector<FakeWebRtcVideoDecoder*>& decoders();
 
diff --git a/media/engine/null_webrtc_video_engine.h b/media/engine/null_webrtc_video_engine.h
index 5c31e21..590f0b0 100644
--- a/media/engine/null_webrtc_video_engine.h
+++ b/media/engine/null_webrtc_video_engine.h
@@ -30,11 +30,7 @@
 // CompositeMediaEngine.
 class NullWebRtcVideoEngine : public VideoEngineInterface {
  public:
-  std::vector<VideoCodec> send_codecs() const override {
-    return std::vector<VideoCodec>();
-  }
-
-  std::vector<VideoCodec> recv_codecs() const override {
+  std::vector<VideoCodec> codecs() const override {
     return std::vector<VideoCodec>();
   }
 
diff --git a/media/engine/webrtc_video_engine.cc b/media/engine/webrtc_video_engine.cc
index f7d942f..e3ac88b 100644
--- a/media/engine/webrtc_video_engine.cc
+++ b/media/engine/webrtc_video_engine.cc
@@ -139,11 +139,11 @@
   return output_codecs;
 }
 
-template <class T>
-std::vector<VideoCodec> GetPayloadTypesAndDefaultCodecs(const T factory) {
-  return factory ? AssignPayloadTypesAndDefaultCodecs(
-                       factory->GetSupportedFormats())
-                 : std::vector<VideoCodec>();
+std::vector<VideoCodec> AssignPayloadTypesAndDefaultCodecs(
+    const webrtc::VideoEncoderFactory* encoder_factory) {
+  return encoder_factory ? AssignPayloadTypesAndDefaultCodecs(
+                               encoder_factory->GetSupportedFormats())
+                         : std::vector<VideoCodec>();
 }
 
 bool IsTemporalLayersSupported(const std::string& codec_name) {
@@ -476,12 +476,8 @@
                                 encoder_factory_.get(), decoder_factory_.get(),
                                 video_bitrate_allocator_factory);
 }
-std::vector<VideoCodec> WebRtcVideoEngine::send_codecs() const {
-  return GetPayloadTypesAndDefaultCodecs(encoder_factory_.get());
-}
-
-std::vector<VideoCodec> WebRtcVideoEngine::recv_codecs() const {
-  return GetPayloadTypesAndDefaultCodecs(decoder_factory_.get());
+std::vector<VideoCodec> WebRtcVideoEngine::codecs() const {
+  return AssignPayloadTypesAndDefaultCodecs(encoder_factory_.get());
 }
 
 RtpCapabilities WebRtcVideoEngine::GetCapabilities() const {
@@ -551,7 +547,8 @@
 
   rtcp_receiver_report_ssrc_ = kDefaultRtcpReceiverReportSsrc;
   sending_ = false;
-  recv_codecs_ = MapCodecs(GetPayloadTypesAndDefaultCodecs(decoder_factory_));
+  recv_codecs_ =
+      MapCodecs(AssignPayloadTypesAndDefaultCodecs(encoder_factory_));
   recv_flexfec_payload_type_ = recv_codecs_.front().flexfec_payload_type;
 }
 
@@ -975,7 +972,7 @@
 
   // Verify that every mapped codec is supported locally.
   const std::vector<VideoCodec> local_supported_codecs =
-      GetPayloadTypesAndDefaultCodecs(decoder_factory_);
+      AssignPayloadTypesAndDefaultCodecs(encoder_factory_);
   for (const VideoCodecSettings& mapped_codec : mapped_codecs) {
     if (!FindMatchingCodec(local_supported_codecs, mapped_codec.codec)) {
       RTC_LOG(LS_ERROR)
diff --git a/media/engine/webrtc_video_engine.h b/media/engine/webrtc_video_engine.h
index 9b5e72d..3a0a156 100644
--- a/media/engine/webrtc_video_engine.h
+++ b/media/engine/webrtc_video_engine.h
@@ -97,8 +97,7 @@
       webrtc::VideoBitrateAllocatorFactory* video_bitrate_allocator_factory)
       override;
 
-  std::vector<VideoCodec> send_codecs() const override;
-  std::vector<VideoCodec> recv_codecs() const override;
+  std::vector<VideoCodec> codecs() const override;
   RtpCapabilities GetCapabilities() const override;
 
  private:
diff --git a/media/engine/webrtc_video_engine_unittest.cc b/media/engine/webrtc_video_engine_unittest.cc
index f2e61e4..b3d3608 100644
--- a/media/engine/webrtc_video_engine_unittest.cc
+++ b/media/engine/webrtc_video_engine_unittest.cc
@@ -265,7 +265,7 @@
   // Find the codec in the engine with the given name. The codec must be
   // present.
   cricket::VideoCodec GetEngineCodec(const std::string& name) const;
-  void AddSupportedVideoCodecType(const std::string& name);
+
   VideoMediaChannel* SetSendParamsWithAllSupportedCodecs();
 
   VideoMediaChannel* SetRecvParamsWithSupportedCodecs(
@@ -296,7 +296,7 @@
   encoder_factory_->AddSupportedVideoCodecType("VP8");
   AssignDefaultCodec();
 
-  std::vector<VideoCodec> engine_codecs = engine_.send_codecs();
+  std::vector<VideoCodec> engine_codecs = engine_.codecs();
   for (size_t i = 0; i < engine_codecs.size(); ++i) {
     if (engine_codecs[i].name != kRtxCodecName)
       continue;
@@ -375,7 +375,7 @@
   // dtor is called.
   ::testing::NiceMock<MockVideoSource> video_source;
 
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
 
   std::unique_ptr<VideoMediaChannel> channel(
       SetSendParamsWithAllSupportedCodecs());
@@ -414,7 +414,7 @@
   // dtor is called.
   ::testing::NiceMock<MockVideoSource> video_source;
 
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
 
   std::unique_ptr<VideoMediaChannel> channel(
       SetSendParamsWithAllSupportedCodecs());
@@ -438,8 +438,8 @@
 TEST_F(WebRtcVideoEngineTest, CVOSetHeaderExtensionAfterCapturer) {
   ::testing::NiceMock<MockVideoSource> video_source;
 
-  AddSupportedVideoCodecType("VP8");
-  AddSupportedVideoCodecType("VP9");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP9");
 
   std::unique_ptr<VideoMediaChannel> channel(
       SetSendParamsWithAllSupportedCodecs());
@@ -483,7 +483,7 @@
 }
 
 TEST_F(WebRtcVideoEngineTest, SetSendFailsBeforeSettingCodecs) {
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
 
   std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
       call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
@@ -498,7 +498,7 @@
 }
 
 TEST_F(WebRtcVideoEngineTest, GetStatsWithoutSendCodecsSetDoesNotCrash) {
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
 
   std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
       call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
@@ -509,7 +509,7 @@
 }
 
 TEST_F(WebRtcVideoEngineTest, UseFactoryForVp8WhenSupported) {
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
 
   std::unique_ptr<VideoMediaChannel> channel(
       SetSendParamsWithAllSupportedCodecs());
@@ -569,7 +569,7 @@
   encoder_factory_->AddSupportedVideoCodec(h264_high);
 
   // First figure out what payload types the test codecs got assigned.
-  const std::vector<cricket::VideoCodec> codecs = engine_.send_codecs();
+  const std::vector<cricket::VideoCodec> codecs = engine_.codecs();
   // Now search for RTX codecs for them. Expect that they all have associated
   // RTX codecs.
   EXPECT_TRUE(HasRtxCodec(
@@ -586,7 +586,7 @@
 
 #if defined(RTC_ENABLE_VP9)
 TEST_F(WebRtcVideoEngineTest, CanConstructDecoderForVp9EncoderFactory) {
-  AddSupportedVideoCodecType("VP9");
+  encoder_factory_->AddSupportedVideoCodecType("VP9");
 
   std::unique_ptr<VideoMediaChannel> channel(
       SetSendParamsWithAllSupportedCodecs());
@@ -597,7 +597,7 @@
 #endif  // defined(RTC_ENABLE_VP9)
 
 TEST_F(WebRtcVideoEngineTest, PropagatesInputFrameTimestamp) {
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
   FakeCall* fake_call = new FakeCall();
   call_.reset(fake_call);
   std::unique_ptr<VideoMediaChannel> channel(
@@ -651,7 +651,7 @@
 }
 
 void WebRtcVideoEngineTest::AssignDefaultAptRtxTypes() {
-  std::vector<VideoCodec> engine_codecs = engine_.send_codecs();
+  std::vector<VideoCodec> engine_codecs = engine_.codecs();
   RTC_DCHECK(!engine_codecs.empty());
   for (const cricket::VideoCodec& codec : engine_codecs) {
     if (codec.name == "rtx") {
@@ -665,7 +665,7 @@
 }
 
 void WebRtcVideoEngineTest::AssignDefaultCodec() {
-  std::vector<VideoCodec> engine_codecs = engine_.send_codecs();
+  std::vector<VideoCodec> engine_codecs = engine_.codecs();
   RTC_DCHECK(!engine_codecs.empty());
   bool codec_set = false;
   for (const cricket::VideoCodec& codec : engine_codecs) {
@@ -681,7 +681,7 @@
 
 size_t WebRtcVideoEngineTest::GetEngineCodecIndex(
     const std::string& name) const {
-  const std::vector<cricket::VideoCodec> codecs = engine_.send_codecs();
+  const std::vector<cricket::VideoCodec> codecs = engine_.codecs();
   for (size_t i = 0; i < codecs.size(); ++i) {
     const cricket::VideoCodec engine_codec = codecs[i];
     if (!absl::EqualsIgnoreCase(name, engine_codec.name))
@@ -705,13 +705,7 @@
 
 cricket::VideoCodec WebRtcVideoEngineTest::GetEngineCodec(
     const std::string& name) const {
-  return engine_.send_codecs()[GetEngineCodecIndex(name)];
-}
-
-void WebRtcVideoEngineTest::AddSupportedVideoCodecType(
-    const std::string& name) {
-  encoder_factory_->AddSupportedVideoCodecType(name);
-  decoder_factory_->AddSupportedVideoCodecType(name);
+  return engine_.codecs()[GetEngineCodecIndex(name)];
 }
 
 VideoMediaChannel*
@@ -760,7 +754,7 @@
 }
 
 TEST_F(WebRtcVideoEngineTest, UsesSimulcastAdapterForVp8Factories) {
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
 
   std::unique_ptr<VideoMediaChannel> channel(
       SetSendParamsWithAllSupportedCodecs());
@@ -797,8 +791,8 @@
 }
 
 TEST_F(WebRtcVideoEngineTest, ChannelWithH264CanChangeToVp8) {
-  AddSupportedVideoCodecType("VP8");
-  AddSupportedVideoCodecType("H264");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("H264");
 
   // Frame source.
   webrtc::test::FrameForwarder frame_forwarder;
@@ -832,8 +826,8 @@
 
 TEST_F(WebRtcVideoEngineTest,
        UsesSimulcastAdapterForVp8WithCombinedVP8AndH264Factory) {
-  AddSupportedVideoCodecType("VP8");
-  AddSupportedVideoCodecType("H264");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("H264");
 
   std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
       call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
@@ -868,8 +862,8 @@
 
 TEST_F(WebRtcVideoEngineTest,
        DestroysNonSimulcastEncoderFromCombinedVP8AndH264Factory) {
-  AddSupportedVideoCodecType("VP8");
-  AddSupportedVideoCodecType("H264");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("H264");
 
   std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
       call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
@@ -902,7 +896,7 @@
   RTC_DCHECK(!override_field_trials_);
   override_field_trials_ = std::make_unique<webrtc::test::ScopedFieldTrials>(
       "WebRTC-H264Simulcast/Enabled/");
-  AddSupportedVideoCodecType("H264");
+  encoder_factory_->AddSupportedVideoCodecType("H264");
 
   std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
       call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
@@ -942,13 +936,13 @@
   auto flexfec = Field("name", &VideoCodec::name, "flexfec-03");
 
   // FlexFEC is not active without field trial.
-  EXPECT_THAT(engine_.send_codecs(), Not(Contains(flexfec)));
+  EXPECT_THAT(engine_.codecs(), Not(Contains(flexfec)));
 
   // FlexFEC is active with field trial.
   RTC_DCHECK(!override_field_trials_);
   override_field_trials_ = std::make_unique<webrtc::test::ScopedFieldTrials>(
       "WebRTC-FlexFEC-03-Advertised/Enabled/");
-  EXPECT_THAT(engine_.send_codecs(), Contains(flexfec));
+  EXPECT_THAT(engine_.codecs(), Contains(flexfec));
 }
 
 // Test that codecs are added in the order they are reported from the factory.
@@ -972,11 +966,11 @@
   // Set up external encoder factory with first codec, and initialize engine.
   encoder_factory_->AddSupportedVideoCodecType(kFakeExternalCodecName1);
 
-  std::vector<cricket::VideoCodec> codecs_before(engine_.send_codecs());
+  std::vector<cricket::VideoCodec> codecs_before(engine_.codecs());
 
   // Add second codec.
   encoder_factory_->AddSupportedVideoCodecType(kFakeExternalCodecName2);
-  std::vector<cricket::VideoCodec> codecs_after(engine_.send_codecs());
+  std::vector<cricket::VideoCodec> codecs_after(engine_.codecs());
   // The codec itself and RTX should have been added.
   EXPECT_EQ(codecs_before.size() + 2, codecs_after.size());
 
@@ -992,11 +986,12 @@
   encoder_factory_->AddSupportedVideoCodecType(kFakeCodecName);
 
   const size_t fake_codec_index = GetEngineCodecIndex(kFakeCodecName);
-  EXPECT_EQ("rtx", engine_.send_codecs().at(fake_codec_index + 1).name);
+  EXPECT_EQ("rtx", engine_.codecs().at(fake_codec_index + 1).name);
 }
 
 TEST_F(WebRtcVideoEngineTest, RegisterDecodersIfSupported) {
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
+  decoder_factory_->AddSupportedVideoCodecType(webrtc::SdpVideoFormat("VP8"));
   cricket::VideoRecvParameters parameters;
   parameters.codecs.push_back(GetEngineCodec("VP8"));
 
@@ -1041,7 +1036,8 @@
 // empty list of RtpSource without crashing.
 TEST_F(WebRtcVideoEngineTest, GetSourcesWithNonExistingSsrc) {
   // Setup an recv stream with |kSsrc|.
-  AddSupportedVideoCodecType("VP8");
+  encoder_factory_->AddSupportedVideoCodecType("VP8");
+  decoder_factory_->AddSupportedVideoCodecType(webrtc::SdpVideoFormat("VP8"));
   cricket::VideoRecvParameters parameters;
   parameters.codecs.push_back(GetEngineCodec("VP8"));
   std::unique_ptr<VideoMediaChannel> channel(
@@ -1060,8 +1056,7 @@
   std::unique_ptr<webrtc::VideoDecoderFactory> decoder_factory;
   WebRtcVideoEngine engine(std::move(encoder_factory),
                            std::move(decoder_factory));
-  EXPECT_EQ(0u, engine.send_codecs().size());
-  EXPECT_EQ(0u, engine.recv_codecs().size());
+  EXPECT_EQ(0u, engine.codecs().size());
 }
 
 TEST(WebRtcVideoEngineNewVideoCodecFactoryTest, EmptyFactories) {
@@ -1074,8 +1069,7 @@
       (std::unique_ptr<webrtc::VideoEncoderFactory>(encoder_factory)),
       (std::unique_ptr<webrtc::VideoDecoderFactory>(decoder_factory)));
   EXPECT_CALL(*encoder_factory, GetSupportedFormats());
-  EXPECT_EQ(0u, engine.send_codecs().size());
-  EXPECT_EQ(0u, engine.recv_codecs().size());
+  EXPECT_EQ(0u, engine.codecs().size());
   EXPECT_CALL(*encoder_factory, Die());
   EXPECT_CALL(*decoder_factory, Die());
 }
@@ -1104,11 +1098,9 @@
   const std::vector<webrtc::SdpVideoFormat> supported_formats = {vp8_format};
   EXPECT_CALL(*encoder_factory, GetSupportedFormats())
       .WillRepeatedly(::testing::Return(supported_formats));
-  EXPECT_CALL(*decoder_factory, GetSupportedFormats())
-      .WillRepeatedly(::testing::Return(supported_formats));
 
   // Verify the codecs from the engine.
-  const std::vector<VideoCodec> engine_codecs = engine.send_codecs();
+  const std::vector<VideoCodec> engine_codecs = engine.codecs();
   // Verify default codecs has been added correctly.
   EXPECT_EQ(5u, engine_codecs.size());
   EXPECT_EQ("VP8", engine_codecs.at(0).name);
@@ -1241,14 +1233,12 @@
   const auto call = absl::WrapUnique(webrtc::Call::Create(call_config));
 
   // Create recv channel.
-  EXPECT_CALL(*decoder_factory, GetSupportedFormats())
-      .WillRepeatedly(::testing::Return(supported_formats));
   const int recv_ssrc = 321;
   std::unique_ptr<VideoMediaChannel> recv_channel(engine.CreateMediaChannel(
       call.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
       rate_allocator_factory.get()));
   cricket::VideoRecvParameters recv_parameters;
-  recv_parameters.codecs.push_back(engine.recv_codecs().front());
+  recv_parameters.codecs.push_back(engine.codecs().front());
   EXPECT_TRUE(recv_channel->SetRecvParameters(recv_parameters));
   EXPECT_TRUE(recv_channel->AddRecvStream(
       cricket::StreamParams::CreateLegacy(recv_ssrc)));
@@ -1336,9 +1326,9 @@
             webrtc::CreateBuiltinVideoBitrateAllocatorFactory()),
         engine_(
             webrtc::CreateBuiltinVideoEncoderFactory(),
-            std::make_unique<webrtc::test::FunctionVideoDecoderFactory>(
-                []() { return std::make_unique<webrtc::test::FakeDecoder>(); },
-                kSdpVideoFormats)),
+            std::make_unique<webrtc::test::FunctionVideoDecoderFactory>([]() {
+              return std::make_unique<webrtc::test::FakeDecoder>();
+            })),
         channel_(absl::WrapUnique(static_cast<cricket::WebRtcVideoChannel*>(
             engine_.CreateMediaChannel(
                 call_.get(),
@@ -1349,7 +1339,7 @@
     network_interface_.SetDestination(channel_.get());
     channel_->SetInterface(&network_interface_, webrtc::MediaTransportConfig());
     cricket::VideoRecvParameters parameters;
-    parameters.codecs = engine_.recv_codecs();
+    parameters.codecs = engine_.codecs();
     channel_->SetRecvParameters(parameters);
   }
 
@@ -1373,7 +1363,6 @@
     EXPECT_EQ(0, renderer_.errors());
   }
 
-  static const std::vector<webrtc::SdpVideoFormat> kSdpVideoFormats;
   webrtc::FieldTrialBasedConfig field_trials_;
   webrtc::RtcEventLogNull event_log_;
   std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory_;
@@ -1386,10 +1375,6 @@
   cricket::FakeVideoRenderer renderer_;
 };
 
-const std::vector<webrtc::SdpVideoFormat>
-    WebRtcVideoChannelEncodedFrameCallbackTest::kSdpVideoFormats = {
-        webrtc::SdpVideoFormat("VP8")};
-
 TEST_F(WebRtcVideoChannelEncodedFrameCallbackTest,
        SetEncodedFrameBufferFunction_DefaultStream) {
   testing::MockFunction<void(const webrtc::RecordableEncodedFrame&)> callback;
@@ -1495,7 +1480,7 @@
     network_interface_.SetDestination(channel_.get());
     channel_->SetInterface(&network_interface_, webrtc::MediaTransportConfig());
     cricket::VideoRecvParameters parameters;
-    parameters.codecs = engine_.send_codecs();
+    parameters.codecs = engine_.codecs();
     channel_->SetRecvParameters(parameters);
     EXPECT_TRUE(channel_->AddSendStream(DefaultSendStreamParams()));
     frame_forwarder_ = std::make_unique<webrtc::test::FrameForwarder>();
@@ -1643,7 +1628,7 @@
   }
 
   cricket::VideoCodec GetEngineCodec(const std::string& name) {
-    for (const cricket::VideoCodec& engine_codec : engine_.send_codecs()) {
+    for (const cricket::VideoCodec& engine_codec : engine_.codecs()) {
       if (absl::EqualsIgnoreCase(name, engine_codec.name))
         return engine_codec;
     }
@@ -2385,10 +2370,10 @@
         frame_source_(1280, 720, rtc::kNumMicrosecsPerSec / 30),
         last_ssrc_(0) {}
   void SetUp() override {
-    AddSupportedVideoCodecType("VP8");
-    AddSupportedVideoCodecType("VP9");
+    encoder_factory_->AddSupportedVideoCodecType("VP8");
+    encoder_factory_->AddSupportedVideoCodecType("VP9");
 #if defined(WEBRTC_USE_H264)
-    AddSupportedVideoCodecType("H264");
+    encoder_factory_->AddSupportedVideoCodecType("H264");
 #endif
 
     fake_call_.reset(new FakeCall());
@@ -2397,8 +2382,8 @@
         webrtc::CryptoOptions(), video_bitrate_allocator_factory_.get()));
     channel_->OnReadyToSend(true);
     last_ssrc_ = 123;
-    send_parameters_.codecs = engine_.send_codecs();
-    recv_parameters_.codecs = engine_.recv_codecs();
+    send_parameters_.codecs = engine_.codecs();
+    recv_parameters_.codecs = engine_.codecs();
     ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
   }
 
@@ -2570,7 +2555,7 @@
     VerifyCodecHasDefaultFeedbackParams(default_codec_, expect_lntf_enabled);
 
     cricket::VideoSendParameters parameters;
-    parameters.codecs = engine_.send_codecs();
+    parameters.codecs = engine_.codecs();
     EXPECT_TRUE(channel_->SetSendParameters(parameters));
     EXPECT_TRUE(channel_->SetSend(true));
 
@@ -2715,7 +2700,7 @@
 
 TEST_F(WebRtcVideoChannelTest, RecvStreamWithSimAndRtx) {
   cricket::VideoSendParameters parameters;
-  parameters.codecs = engine_.send_codecs();
+  parameters.codecs = engine_.codecs();
   EXPECT_TRUE(channel_->SetSendParameters(parameters));
   EXPECT_TRUE(channel_->SetSend(true));
   parameters.conference_mode = true;
@@ -3028,7 +3013,7 @@
 
   // Verify that transport cc feedback is turned on when setting default codecs
   // since the default codecs have transport cc feedback enabled.
-  parameters.codecs = engine_.send_codecs();
+  parameters.codecs = engine_.codecs();
   EXPECT_TRUE(channel_->SetSendParameters(parameters));
   stream = fake_call_->GetVideoReceiveStreams()[0];
   EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
@@ -3057,7 +3042,7 @@
 
   {
     cricket::VideoSendParameters parameters;
-    parameters.codecs = engine_.send_codecs();
+    parameters.codecs = engine_.codecs();
     EXPECT_TRUE(channel_->SetSendParameters(parameters));
     EXPECT_TRUE(channel_->SetSend(true));
   }
@@ -3081,7 +3066,7 @@
   EXPECT_FALSE(send_stream->GetConfig().rtp.lntf.enabled);
 
   // Setting the default codecs again, including VP8, turns LNTF back on.
-  parameters.codecs = engine_.send_codecs();
+  parameters.codecs = engine_.codecs();
   EXPECT_TRUE(channel_->SetSendParameters(parameters));
   recv_stream = fake_call_->GetVideoReceiveStreams()[0];
   EXPECT_TRUE(recv_stream->GetConfig().rtp.lntf.enabled);
@@ -3094,7 +3079,7 @@
   VerifyCodecHasDefaultFeedbackParams(default_codec_, false);
 
   cricket::VideoSendParameters parameters;
-  parameters.codecs = engine_.send_codecs();
+  parameters.codecs = engine_.codecs();
   EXPECT_TRUE(channel_->SetSendParameters(parameters));
   EXPECT_TRUE(channel_->SetSend(true));
 
@@ -3132,7 +3117,7 @@
 
   // Verify that NACK is turned on when setting default codecs since the
   // default codecs have NACK enabled.
-  parameters.codecs = engine_.send_codecs();
+  parameters.codecs = engine_.codecs();
   EXPECT_TRUE(channel_->SetSendParameters(parameters));
   recv_stream = fake_call_->GetVideoReceiveStreams()[0];
   EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
@@ -3870,7 +3855,7 @@
 
   VideoCodec codec;
   EXPECT_TRUE(channel_->GetSendCodec(&codec));
-  EXPECT_TRUE(codec.Matches(engine_.send_codecs()[0]));
+  EXPECT_TRUE(codec.Matches(engine_.codecs()[0]));
 
   // Using a RTX setup to verify that the default RTX payload type is good.
   const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
@@ -4218,7 +4203,7 @@
 TEST_F(WebRtcVideoChannelTest,
        SetSendCodecRejectsRtxWithoutAssociatedPayloadType) {
   const int kUnusedPayloadType = 127;
-  EXPECT_FALSE(FindCodecById(engine_.send_codecs(), kUnusedPayloadType));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType));
 
   cricket::VideoSendParameters parameters;
   cricket::VideoCodec rtx_codec(kUnusedPayloadType, "rtx");
@@ -4231,8 +4216,8 @@
        SetSendCodecRejectsRtxWithoutMatchingVideoCodec) {
   const int kUnusedPayloadType1 = 126;
   const int kUnusedPayloadType2 = 127;
-  EXPECT_FALSE(FindCodecById(engine_.send_codecs(), kUnusedPayloadType1));
-  EXPECT_FALSE(FindCodecById(engine_.send_codecs(), kUnusedPayloadType2));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
   {
     cricket::VideoCodec rtx_codec = cricket::VideoCodec::CreateRtxCodec(
         kUnusedPayloadType1, GetEngineCodec("VP8").id);
@@ -4255,8 +4240,8 @@
 TEST_F(WebRtcVideoChannelTest, SetSendCodecsWithChangedRtxPayloadType) {
   const int kUnusedPayloadType1 = 126;
   const int kUnusedPayloadType2 = 127;
-  EXPECT_FALSE(FindCodecById(engine_.send_codecs(), kUnusedPayloadType1));
-  EXPECT_FALSE(FindCodecById(engine_.send_codecs(), kUnusedPayloadType2));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
 
   // SSRCs for RTX.
   cricket::StreamParams params =
@@ -4657,8 +4642,8 @@
 TEST_F(WebRtcVideoChannelTest, SetRecvCodecsWithRtx) {
   const int kUnusedPayloadType1 = 126;
   const int kUnusedPayloadType2 = 127;
-  EXPECT_FALSE(FindCodecById(engine_.recv_codecs(), kUnusedPayloadType1));
-  EXPECT_FALSE(FindCodecById(engine_.recv_codecs(), kUnusedPayloadType2));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
 
   cricket::VideoRecvParameters parameters;
   parameters.codecs.push_back(GetEngineCodec("VP8"));
@@ -4756,8 +4741,8 @@
 TEST_F(WebRtcVideoChannelTest, SetRecvCodecsWithChangedRtxPayloadType) {
   const int kUnusedPayloadType1 = 126;
   const int kUnusedPayloadType2 = 127;
-  EXPECT_FALSE(FindCodecById(engine_.recv_codecs(), kUnusedPayloadType1));
-  EXPECT_FALSE(FindCodecById(engine_.recv_codecs(), kUnusedPayloadType2));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
 
   // SSRCs for RTX.
   cricket::StreamParams params =
@@ -4805,14 +4790,13 @@
 
 TEST_F(WebRtcVideoChannelTest, SetRecvCodecsAcceptDefaultCodecs) {
   cricket::VideoRecvParameters parameters;
-  parameters.codecs = engine_.recv_codecs();
+  parameters.codecs = engine_.codecs();
   EXPECT_TRUE(channel_->SetRecvParameters(parameters));
 
   FakeVideoReceiveStream* stream = AddRecvStream();
   const webrtc::VideoReceiveStream::Config& config = stream->GetConfig();
-  EXPECT_EQ(engine_.recv_codecs()[0].name,
-            config.decoders[0].video_format.name);
-  EXPECT_EQ(engine_.recv_codecs()[0].id, config.decoders[0].payload_type);
+  EXPECT_EQ(engine_.codecs()[0].name, config.decoders[0].video_format.name);
+  EXPECT_EQ(engine_.codecs()[0].id, config.decoders[0].payload_type);
 }
 
 TEST_F(WebRtcVideoChannelTest, SetRecvCodecsRejectUnsupportedCodec) {
@@ -5702,7 +5686,7 @@
     uint8_t payload_type,
     bool expect_created_receive_stream) {
   // kRedRtxPayloadType must currently be unused.
-  EXPECT_FALSE(FindCodecById(engine_.recv_codecs(), kRedRtxPayloadType));
+  EXPECT_FALSE(FindCodecById(engine_.codecs(), kRedRtxPayloadType));
 
   // Add a RED RTX codec.
   VideoCodec red_rtx_codec =
@@ -7559,7 +7543,6 @@
 
   void SetUp() override {
     encoder_factory_->AddSupportedVideoCodecType("VP8");
-    decoder_factory_->AddSupportedVideoCodecType("VP8");
     channel_.reset(engine_.CreateMediaChannel(
         &fake_call_, GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions(),
         mock_rate_allocator_factory_.get()));
diff --git a/pc/channel_manager.cc b/pc/channel_manager.cc
index 90e9752..ce8f473 100644
--- a/pc/channel_manager.cc
+++ b/pc/channel_manager.cc
@@ -94,9 +94,7 @@
   }
   codecs->clear();
 
-  // TODO(kron): Update code to distuiguish between send and receive codecs. Use
-  // send codecs for now to be consistent with old behavior.
-  std::vector<VideoCodec> video_codecs = media_engine_->video().send_codecs();
+  std::vector<VideoCodec> video_codecs = media_engine_->video().codecs();
   for (const auto& video_codec : video_codecs) {
     if (!enable_rtx_ &&
         absl::EqualsIgnoreCase(kRtxCodecName, video_codec.name)) {
diff --git a/pc/peer_connection_media_unittest.cc b/pc/peer_connection_media_unittest.cc
index 8290930..077c4a3 100644
--- a/pc/peer_connection_media_unittest.cc
+++ b/pc/peer_connection_media_unittest.cc
@@ -1434,7 +1434,7 @@
 TEST_F(PeerConnectionMediaTestUnifiedPlan,
        SetCodecPreferencesVideoRejectsOnlyRtxRedFec) {
   auto fake_engine = std::make_unique<FakeMediaEngine>();
-  auto video_codecs = fake_engine->video().send_codecs();
+  auto video_codecs = fake_engine->video().codecs();
   video_codecs.push_back(
       cricket::VideoCodec(video_codecs.back().id + 1, cricket::kRtxCodecName));
   video_codecs.push_back(
@@ -1540,7 +1540,7 @@
 
 TEST_F(PeerConnectionMediaTestUnifiedPlan, SetCodecPreferencesVideoWithRtx) {
   auto caller_fake_engine = std::make_unique<FakeMediaEngine>();
-  auto caller_video_codecs = caller_fake_engine->video().send_codecs();
+  auto caller_video_codecs = caller_fake_engine->video().codecs();
   caller_video_codecs.push_back(cricket::VideoCodec(
       caller_video_codecs.back().id + 1, cricket::kVp8CodecName));
   caller_video_codecs.push_back(cricket::VideoCodec(
@@ -1592,7 +1592,7 @@
 TEST_F(PeerConnectionMediaTestUnifiedPlan,
        SetCodecPreferencesVideoCodecsNegotiation) {
   auto caller_fake_engine = std::make_unique<FakeMediaEngine>();
-  auto caller_video_codecs = caller_fake_engine->video().send_codecs();
+  auto caller_video_codecs = caller_fake_engine->video().codecs();
   caller_video_codecs.push_back(cricket::VideoCodec(
       caller_video_codecs.back().id + 1, cricket::kVp8CodecName));
   caller_video_codecs.push_back(cricket::VideoCodec(
@@ -1666,7 +1666,7 @@
 TEST_F(PeerConnectionMediaTestUnifiedPlan,
        SetCodecPreferencesVideoCodecsNegotiationReverseOrder) {
   auto caller_fake_engine = std::make_unique<FakeMediaEngine>();
-  auto caller_video_codecs = caller_fake_engine->video().send_codecs();
+  auto caller_video_codecs = caller_fake_engine->video().codecs();
   caller_video_codecs.push_back(cricket::VideoCodec(
       caller_video_codecs.back().id + 1, cricket::kVp8CodecName));
   caller_video_codecs.push_back(cricket::VideoCodec(
diff --git a/sdk/objc/components/video_codec/RTCDefaultVideoDecoderFactory.m b/sdk/objc/components/video_codec/RTCDefaultVideoDecoderFactory.m
index 44445f4..bdb1851 100644
--- a/sdk/objc/components/video_codec/RTCDefaultVideoDecoderFactory.m
+++ b/sdk/objc/components/video_codec/RTCDefaultVideoDecoderFactory.m
@@ -21,41 +21,6 @@
 
 @implementation RTCDefaultVideoDecoderFactory
 
-- (NSArray<RTCVideoCodecInfo *> *)supportedCodecs {
-  NSDictionary<NSString *, NSString *> *constrainedHighParams = @{
-    @"profile-level-id" : kRTCMaxSupportedH264ProfileLevelConstrainedHigh,
-    @"level-asymmetry-allowed" : @"1",
-    @"packetization-mode" : @"1",
-  };
-  RTCVideoCodecInfo *constrainedHighInfo =
-      [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name
-                                   parameters:constrainedHighParams];
-
-  NSDictionary<NSString *, NSString *> *constrainedBaselineParams = @{
-    @"profile-level-id" : kRTCMaxSupportedH264ProfileLevelConstrainedBaseline,
-    @"level-asymmetry-allowed" : @"1",
-    @"packetization-mode" : @"1",
-  };
-  RTCVideoCodecInfo *constrainedBaselineInfo =
-      [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name
-                                   parameters:constrainedBaselineParams];
-
-  RTCVideoCodecInfo *vp8Info = [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp8Name];
-
-#if defined(RTC_ENABLE_VP9)
-  RTCVideoCodecInfo *vp9Info = [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp9Name];
-#endif
-
-  return @[
-    constrainedHighInfo,
-    constrainedBaselineInfo,
-    vp8Info,
-#if defined(RTC_ENABLE_VP9)
-    vp9Info,
-#endif
-  ];
-}
-
 - (id<RTCVideoDecoder>)createDecoder:(RTCVideoCodecInfo *)info {
   if ([info.name isEqualToString:kRTCVideoCodecH264Name]) {
     return [[RTCVideoDecoderH264 alloc] init];
@@ -70,4 +35,14 @@
   return nil;
 }
 
+- (NSArray<RTCVideoCodecInfo *> *)supportedCodecs {
+  return @[
+    [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name],
+    [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp8Name],
+#if defined(RTC_ENABLE_VP9)
+    [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp9Name],
+#endif
+  ];
+}
+
 @end