diff --git a/api/video_codecs/test/video_encoder_software_fallback_wrapper_unittest.cc b/api/video_codecs/test/video_encoder_software_fallback_wrapper_unittest.cc
index 2822d693de..9adcd77bb9 100644
--- a/api/video_codecs/test/video_encoder_software_fallback_wrapper_unittest.cc
+++ b/api/video_codecs/test/video_encoder_software_fallback_wrapper_unittest.cc
@@ -189,7 +189,7 @@ void VideoEncoderSoftwareFallbackWrapperTest::EncodeFrame(int expected_ret) {
                                         .set_rotation(webrtc::kVideoRotation_0)
                                         .set_timestamp_us(0)
                                         .build());
-  EXPECT_EQ(expected_ret, fallback_wrapper_->Encode(*frame_, nullptr, &types));
+  EXPECT_EQ(expected_ret, fallback_wrapper_->Encode(*frame_, &types));
 }
 
 void VideoEncoderSoftwareFallbackWrapperTest::UtilizeFallbackEncoder() {
@@ -295,8 +295,7 @@ TEST_F(VideoEncoderSoftwareFallbackWrapperTest,
   // Encoding a frame using the fallback should arrive at the new callback.
   std::vector<FrameType> types(1, kVideoFrameKey);
   frame_->set_timestamp(frame_->timestamp() + 1000);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            fallback_wrapper_->Encode(*frame_, nullptr, &types));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_->Encode(*frame_, &types));
 
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_->Release());
 }
@@ -605,7 +604,7 @@ TEST(SoftwareFallbackEncoderTest, HwRateControllerTrusted) {
   VideoFrame frame = VideoFrame::Builder()
                          .set_video_frame_buffer(I420Buffer::Create(100, 100))
                          .build();
-  wrapper->Encode(frame, nullptr, nullptr);
+  wrapper->Encode(frame, nullptr);
 
   EXPECT_FALSE(wrapper->GetEncoderInfo().has_trusted_rate_controller);
 }
@@ -645,7 +644,7 @@ TEST(SoftwareFallbackEncoderTest, ReportsHardwareAccelerated) {
   VideoFrame frame = VideoFrame::Builder()
                          .set_video_frame_buffer(I420Buffer::Create(100, 100))
                          .build();
-  wrapper->Encode(frame, nullptr, nullptr);
+  wrapper->Encode(frame, nullptr);
   EXPECT_FALSE(wrapper->GetEncoderInfo().is_hardware_accelerated);
 }
 
@@ -669,7 +668,7 @@ TEST(SoftwareFallbackEncoderTest, ReportsInternalSource) {
   VideoFrame frame = VideoFrame::Builder()
                          .set_video_frame_buffer(I420Buffer::Create(100, 100))
                          .build();
-  wrapper->Encode(frame, nullptr, nullptr);
+  wrapper->Encode(frame, nullptr);
   EXPECT_FALSE(wrapper->GetEncoderInfo().has_internal_source);
 }
 
diff --git a/api/video_codecs/video_encoder.cc b/api/video_codecs/video_encoder.cc
index e56c597dc0..c28c181c80 100644
--- a/api/video_codecs/video_encoder.cc
+++ b/api/video_codecs/video_encoder.cc
@@ -101,6 +101,19 @@ VideoEncoder::EncoderInfo::EncoderInfo(const EncoderInfo&) = default;
 
 VideoEncoder::EncoderInfo::~EncoderInfo() = default;
 
+// Implementations of the interface must implement one or the other of these two
+// methods.
+int32_t VideoEncoder::Encode(const VideoFrame& frame,
+                             const std::vector<FrameType>* frame_types) {
+  return Encode(frame, nullptr, frame_types);
+}
+
+int32_t VideoEncoder::Encode(const VideoFrame& frame,
+                             const CodecSpecificInfo* codec_specific_info,
+                             const std::vector<FrameType>* frame_types) {
+  return Encode(frame, frame_types);
+}
+
 int32_t VideoEncoder::SetRates(uint32_t bitrate, uint32_t framerate) {
   RTC_NOTREACHED() << "SetRate(uint32_t, uint32_t) is deprecated.";
   return -1;
diff --git a/api/video_codecs/video_encoder.h b/api/video_codecs/video_encoder.h
index d48498bcc1..59dc55fb30 100644
--- a/api/video_codecs/video_encoder.h
+++ b/api/video_codecs/video_encoder.h
@@ -241,9 +241,13 @@ class RTC_EXPORT VideoEncoder {
   //                                  WEBRTC_VIDEO_CODEC_ERR_PARAMETER
   //                                  WEBRTC_VIDEO_CODEC_MEMORY
   //                                  WEBRTC_VIDEO_CODEC_ERROR
+  virtual int32_t Encode(const VideoFrame& frame,
+                         const std::vector<FrameType>* frame_types);
+  // TODO(bugs.webrtc.org/10379): Deprecated. Delete, and make above method pure
+  // virtual, as soon as downstream applications are updated.
   virtual int32_t Encode(const VideoFrame& frame,
                          const CodecSpecificInfo* codec_specific_info,
-                         const std::vector<FrameType>* frame_types) = 0;
+                         const std::vector<FrameType>* frame_types);
 
   // Inform the encoder about the new target bit rate.
   //
diff --git a/api/video_codecs/video_encoder_software_fallback_wrapper.cc b/api/video_codecs/video_encoder_software_fallback_wrapper.cc
index 778483d00b..c52262feee 100644
--- a/api/video_codecs/video_encoder_software_fallback_wrapper.cc
+++ b/api/video_codecs/video_encoder_software_fallback_wrapper.cc
@@ -88,7 +88,6 @@ class VideoEncoderSoftwareFallbackWrapper final : public VideoEncoder {
 
   int32_t Release() override;
   int32_t Encode(const VideoFrame& frame,
-                 const CodecSpecificInfo* codec_specific_info,
                  const std::vector<FrameType>* frame_types) override;
   int32_t SetRateAllocation(const VideoBitrateAllocation& bitrate_allocation,
                             uint32_t framerate) override;
@@ -253,16 +252,15 @@ int32_t VideoEncoderSoftwareFallbackWrapper::Release() {
 
 int32_t VideoEncoderSoftwareFallbackWrapper::Encode(
     const VideoFrame& frame,
-    const CodecSpecificInfo* codec_specific_info,
     const std::vector<FrameType>* frame_types) {
   if (use_fallback_encoder_)
-    return fallback_encoder_->Encode(frame, codec_specific_info, frame_types);
-  int32_t ret = encoder_->Encode(frame, codec_specific_info, frame_types);
+    return fallback_encoder_->Encode(frame, frame_types);
+  int32_t ret = encoder_->Encode(frame, frame_types);
   // If requested, try a software fallback.
   bool fallback_requested = (ret == WEBRTC_VIDEO_CODEC_FALLBACK_SOFTWARE);
   if (fallback_requested && InitFallbackEncoder()) {
     // Start using the fallback with this frame.
-    return fallback_encoder_->Encode(frame, codec_specific_info, frame_types);
+    return fallback_encoder_->Encode(frame, frame_types);
   }
   return ret;
 }
diff --git a/media/engine/encoder_simulcast_proxy.cc b/media/engine/encoder_simulcast_proxy.cc
index 3eccb6fae2..dd35bdbea9 100644
--- a/media/engine/encoder_simulcast_proxy.cc
+++ b/media/engine/encoder_simulcast_proxy.cc
@@ -44,9 +44,8 @@ int EncoderSimulcastProxy::InitEncode(const VideoCodec* inst,
 }
 
 int EncoderSimulcastProxy::Encode(const VideoFrame& input_image,
-                                  const CodecSpecificInfo* codec_specific_info,
                                   const std::vector<FrameType>* frame_types) {
-  return encoder_->Encode(input_image, codec_specific_info, frame_types);
+  return encoder_->Encode(input_image, frame_types);
 }
 
 int EncoderSimulcastProxy::RegisterEncodeCompleteCallback(
diff --git a/media/engine/encoder_simulcast_proxy.h b/media/engine/encoder_simulcast_proxy.h
index f01c5c36e7..ce408ac1ba 100644
--- a/media/engine/encoder_simulcast_proxy.h
+++ b/media/engine/encoder_simulcast_proxy.h
@@ -46,7 +46,6 @@ class EncoderSimulcastProxy : public VideoEncoder {
                  int number_of_cores,
                  size_t max_payload_size) override;
   int Encode(const VideoFrame& input_image,
-             const CodecSpecificInfo* codec_specific_info,
              const std::vector<FrameType>* frame_types) override;
   int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
   int SetRateAllocation(const VideoBitrateAllocation& bitrate,
diff --git a/media/engine/simulcast_encoder_adapter.cc b/media/engine/simulcast_encoder_adapter.cc
index d5474405cf..fc18aa4091 100644
--- a/media/engine/simulcast_encoder_adapter.cc
+++ b/media/engine/simulcast_encoder_adapter.cc
@@ -338,7 +338,6 @@ int SimulcastEncoderAdapter::InitEncode(const VideoCodec* inst,
 
 int SimulcastEncoderAdapter::Encode(
     const VideoFrame& input_image,
-    const CodecSpecificInfo* codec_specific_info,
     const std::vector<FrameType>* frame_types) {
   RTC_DCHECK_CALLED_SEQUENTIALLY(&encoder_queue_);
 
@@ -399,8 +398,8 @@ int SimulcastEncoderAdapter::Encode(
     if ((dst_width == src_width && dst_height == src_height) ||
         input_image.video_frame_buffer()->type() ==
             VideoFrameBuffer::Type::kNative) {
-      int ret = streaminfos_[stream_idx].encoder->Encode(
-          input_image, codec_specific_info, &stream_frame_types);
+      int ret = streaminfos_[stream_idx].encoder->Encode(input_image,
+                                                         &stream_frame_types);
       if (ret != WEBRTC_VIDEO_CODEC_OK) {
         return ret;
       }
@@ -426,8 +425,8 @@ int SimulcastEncoderAdapter::Encode(
                              .set_rotation(webrtc::kVideoRotation_0)
                              .set_timestamp_ms(input_image.render_time_ms())
                              .build();
-      int ret = streaminfos_[stream_idx].encoder->Encode(
-          frame, codec_specific_info, &stream_frame_types);
+      int ret =
+          streaminfos_[stream_idx].encoder->Encode(frame, &stream_frame_types);
       if (ret != WEBRTC_VIDEO_CODEC_OK) {
         return ret;
       }
diff --git a/media/engine/simulcast_encoder_adapter.h b/media/engine/simulcast_encoder_adapter.h
index 7029bc15fb..a62e8794b3 100644
--- a/media/engine/simulcast_encoder_adapter.h
+++ b/media/engine/simulcast_encoder_adapter.h
@@ -45,7 +45,6 @@ class SimulcastEncoderAdapter : public VideoEncoder {
                  int number_of_cores,
                  size_t max_payload_size) override;
   int Encode(const VideoFrame& input_image,
-             const CodecSpecificInfo* codec_specific_info,
              const std::vector<FrameType>* frame_types) override;
   int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
   int SetRateAllocation(const VideoBitrateAllocation& bitrate,
diff --git a/media/engine/simulcast_encoder_adapter_unittest.cc b/media/engine/simulcast_encoder_adapter_unittest.cc
index 78cdceda8e..2d575ec7e8 100644
--- a/media/engine/simulcast_encoder_adapter_unittest.cc
+++ b/media/engine/simulcast_encoder_adapter_unittest.cc
@@ -574,7 +574,7 @@ TEST_F(TestSimulcastEncoderAdapterFake, ReusesEncodersInOrder) {
   EXPECT_CALL(*original_encoders[2], Encode(_, _, _))
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   frame_types.resize(3, kVideoFrameKey);
-  EXPECT_EQ(0, adapter_->Encode(input_frame, nullptr, &frame_types));
+  EXPECT_EQ(0, adapter_->Encode(input_frame, &frame_types));
   EXPECT_CALL(*original_encoders[0], Release())
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   EXPECT_CALL(*original_encoders[1], Release())
@@ -599,7 +599,7 @@ TEST_F(TestSimulcastEncoderAdapterFake, ReusesEncodersInOrder) {
   EXPECT_CALL(*original_encoders[1], Encode(_, _, _))
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   frame_types.resize(2, kVideoFrameKey);
-  EXPECT_EQ(0, adapter_->Encode(input_frame, nullptr, &frame_types));
+  EXPECT_EQ(0, adapter_->Encode(input_frame, &frame_types));
   EXPECT_CALL(*original_encoders[0], Release())
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   EXPECT_CALL(*original_encoders[1], Release())
@@ -619,7 +619,7 @@ TEST_F(TestSimulcastEncoderAdapterFake, ReusesEncodersInOrder) {
   EXPECT_CALL(*original_encoders[0], Encode(_, _, _))
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   frame_types.resize(1, kVideoFrameKey);
-  EXPECT_EQ(0, adapter_->Encode(input_frame, nullptr, &frame_types));
+  EXPECT_EQ(0, adapter_->Encode(input_frame, &frame_types));
   EXPECT_CALL(*original_encoders[0], Release())
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   EXPECT_EQ(0, adapter_->Release());
@@ -643,7 +643,7 @@ TEST_F(TestSimulcastEncoderAdapterFake, ReusesEncodersInOrder) {
   EXPECT_CALL(*new_encoders[2], Encode(_, _, _))
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   frame_types.resize(3, kVideoFrameKey);
-  EXPECT_EQ(0, adapter_->Encode(input_frame, nullptr, &frame_types));
+  EXPECT_EQ(0, adapter_->Encode(input_frame, &frame_types));
   EXPECT_CALL(*original_encoders[0], Release())
       .WillOnce(Return(WEBRTC_VIDEO_CODEC_OK));
   EXPECT_CALL(*new_encoders[1], Release())
@@ -891,7 +891,7 @@ TEST_F(TestSimulcastEncoderAdapterFake,
   for (MockVideoEncoder* encoder : helper_->factory()->encoders())
     EXPECT_CALL(*encoder, Encode(::testing::Ref(input_frame), _, _)).Times(1);
   std::vector<FrameType> frame_types(3, kVideoFrameKey);
-  EXPECT_EQ(0, adapter_->Encode(input_frame, nullptr, &frame_types));
+  EXPECT_EQ(0, adapter_->Encode(input_frame, &frame_types));
 }
 
 TEST_F(TestSimulcastEncoderAdapterFake, TestFailureReturnCodesFromEncodeCalls) {
@@ -918,7 +918,7 @@ TEST_F(TestSimulcastEncoderAdapterFake, TestFailureReturnCodesFromEncodeCalls) {
                                .build();
   std::vector<FrameType> frame_types(3, kVideoFrameKey);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_FALLBACK_SOFTWARE,
-            adapter_->Encode(input_frame, nullptr, &frame_types));
+            adapter_->Encode(input_frame, &frame_types));
 }
 
 TEST_F(TestSimulcastEncoderAdapterFake, TestInitFailureCleansUpEncoders) {
@@ -1033,7 +1033,7 @@ TEST_F(TestSimulcastEncoderAdapterFake, ActivatesCorrectStreamsInInitEncode) {
 
   std::vector<FrameType> frame_types;
   frame_types.resize(3, kVideoFrameKey);
-  EXPECT_EQ(0, adapter_->Encode(input_frame, nullptr, &frame_types));
+  EXPECT_EQ(0, adapter_->Encode(input_frame, &frame_types));
 }
 
 TEST_F(TestSimulcastEncoderAdapterFake, TrustedRateControl) {
diff --git a/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc b/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc
index e1788644bb..57c3a9fbf1 100644
--- a/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc
+++ b/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc
@@ -65,8 +65,7 @@ class TestH264Impl : public VideoCodecUnitTest {
 
 TEST_F(TestH264Impl, MAYBE_EncodeDecode) {
   VideoFrame* input_frame = NextInputFrame();
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -93,7 +92,7 @@ TEST_F(TestH264Impl, MAYBE_EncodeDecode) {
 
 TEST_F(TestH264Impl, MAYBE_DecodedQpEqualsEncodedQp) {
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -111,8 +110,7 @@ TEST_F(TestH264Impl, MAYBE_DecodedQpEqualsEncodedQp) {
 
 TEST_F(TestH264Impl, MAYBE_EncodedColorSpaceEqualsInputColorSpace) {
   VideoFrame* input_frame = NextInputFrame();
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -127,7 +125,7 @@ TEST_F(TestH264Impl, MAYBE_EncodedColorSpaceEqualsInputColorSpace) {
           .build();
 
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(input_frame_w_color_space, nullptr, nullptr));
+            encoder_->Encode(input_frame_w_color_space, nullptr));
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
   ASSERT_TRUE(encoded_frame.ColorSpace());
   EXPECT_EQ(*encoded_frame.ColorSpace(), color_space);
@@ -135,7 +133,7 @@ TEST_F(TestH264Impl, MAYBE_EncodedColorSpaceEqualsInputColorSpace) {
 
 TEST_F(TestH264Impl, MAYBE_DecodedColorSpaceEqualsEncodedColorSpace) {
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
diff --git a/modules/video_coding/codecs/multiplex/include/multiplex_encoder_adapter.h b/modules/video_coding/codecs/multiplex/include/multiplex_encoder_adapter.h
index 0543edd5ac..0dd1930914 100644
--- a/modules/video_coding/codecs/multiplex/include/multiplex_encoder_adapter.h
+++ b/modules/video_coding/codecs/multiplex/include/multiplex_encoder_adapter.h
@@ -43,7 +43,6 @@ class MultiplexEncoderAdapter : public VideoEncoder {
                  int number_of_cores,
                  size_t max_payload_size) override;
   int Encode(const VideoFrame& input_image,
-             const CodecSpecificInfo* codec_specific_info,
              const std::vector<FrameType>* frame_types) override;
   int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
   int SetRateAllocation(const VideoBitrateAllocation& bitrate,
diff --git a/modules/video_coding/codecs/multiplex/multiplex_encoder_adapter.cc b/modules/video_coding/codecs/multiplex/multiplex_encoder_adapter.cc
index b93fd92814..4b27b181ff 100644
--- a/modules/video_coding/codecs/multiplex/multiplex_encoder_adapter.cc
+++ b/modules/video_coding/codecs/multiplex/multiplex_encoder_adapter.cc
@@ -138,7 +138,6 @@ int MultiplexEncoderAdapter::InitEncode(const VideoCodec* inst,
 
 int MultiplexEncoderAdapter::Encode(
     const VideoFrame& input_image,
-    const CodecSpecificInfo* codec_specific_info,
     const std::vector<FrameType>* frame_types) {
   if (!encoded_complete_callback_) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
@@ -181,8 +180,7 @@ int MultiplexEncoderAdapter::Encode(
   ++picture_index_;
 
   // Encode YUV
-  int rv = encoders_[kYUVStream]->Encode(input_image, codec_specific_info,
-                                         &adjusted_frame_types);
+  int rv = encoders_[kYUVStream]->Encode(input_image, &adjusted_frame_types);
 
   // If we do not receive an alpha frame, we send a single frame for this
   // |picture_index_|. The receiver will receive |frame_count| as 1 which
@@ -208,8 +206,7 @@ int MultiplexEncoderAdapter::Encode(
                                .set_rotation(input_image.rotation())
                                .set_id(input_image.id())
                                .build();
-  rv = encoders_[kAXXStream]->Encode(alpha_image, codec_specific_info,
-                                     &adjusted_frame_types);
+  rv = encoders_[kAXXStream]->Encode(alpha_image, &adjusted_frame_types);
   return rv;
 }
 
diff --git a/modules/video_coding/codecs/multiplex/test/multiplex_adapter_unittest.cc b/modules/video_coding/codecs/multiplex/test/multiplex_adapter_unittest.cc
index d3757004a7..3aa7c2883a 100644
--- a/modules/video_coding/codecs/multiplex/test/multiplex_adapter_unittest.cc
+++ b/modules/video_coding/codecs/multiplex/test/multiplex_adapter_unittest.cc
@@ -219,8 +219,7 @@ TEST_P(TestMultiplexAdapter, ConstructAndDestructEncoder) {
 
 TEST_P(TestMultiplexAdapter, EncodeDecodeI420Frame) {
   std::unique_ptr<VideoFrame> input_frame = CreateInputFrame(false);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -238,8 +237,7 @@ TEST_P(TestMultiplexAdapter, EncodeDecodeI420Frame) {
 
 TEST_P(TestMultiplexAdapter, EncodeDecodeI420AFrame) {
   std::unique_ptr<VideoFrame> yuva_frame = CreateInputFrame(true);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*yuva_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*yuva_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -264,8 +262,7 @@ TEST_P(TestMultiplexAdapter, EncodeDecodeI420AFrame) {
 
 TEST_P(TestMultiplexAdapter, CheckSingleFrameEncodedBitstream) {
   std::unique_ptr<VideoFrame> input_frame = CreateInputFrame(false);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -284,8 +281,7 @@ TEST_P(TestMultiplexAdapter, CheckSingleFrameEncodedBitstream) {
 
 TEST_P(TestMultiplexAdapter, CheckDoubleFramesEncodedBitstream) {
   std::unique_ptr<VideoFrame> yuva_frame = CreateInputFrame(true);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*yuva_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*yuva_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -311,8 +307,7 @@ TEST_P(TestMultiplexAdapter, ImageIndexIncreases) {
   std::unique_ptr<VideoFrame> yuva_frame = CreateInputFrame(true);
   const size_t expected_num_encoded_frames = 3;
   for (size_t i = 0; i < expected_num_encoded_frames; ++i) {
-    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*yuva_frame, nullptr, nullptr));
+    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*yuva_frame, nullptr));
     EncodedImage encoded_frame;
     CodecSpecificInfo codec_specific_info;
     ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
diff --git a/modules/video_coding/codecs/test/videoprocessor.cc b/modules/video_coding/codecs/test/videoprocessor.cc
index 31da98bde4..ac637388df 100644
--- a/modules/video_coding/codecs/test/videoprocessor.cc
+++ b/modules/video_coding/codecs/test/videoprocessor.cc
@@ -288,8 +288,7 @@ void VideoProcessor::ProcessFrame() {
   const std::vector<FrameType> frame_types =
       (frame_number == 0) ? std::vector<FrameType>{kVideoFrameKey}
                           : std::vector<FrameType>{kVideoFrameDelta};
-  const int encode_return_code =
-      encoder_->Encode(input_frame, nullptr, &frame_types);
+  const int encode_return_code = encoder_->Encode(input_frame, &frame_types);
   for (size_t i = 0; i < num_simulcast_or_spatial_layers_; ++i) {
     FrameStatistics* frame_stat = stats_->GetFrame(frame_number, i);
     frame_stat->encode_return_code = encode_return_code;
diff --git a/modules/video_coding/codecs/vp8/test/vp8_impl_unittest.cc b/modules/video_coding/codecs/vp8/test/vp8_impl_unittest.cc
index 555f9783cc..ec687dfab4 100644
--- a/modules/video_coding/codecs/vp8/test/vp8_impl_unittest.cc
+++ b/modules/video_coding/codecs/vp8/test/vp8_impl_unittest.cc
@@ -81,7 +81,7 @@ class TestVp8Impl : public VideoCodecUnitTest {
       frame_types.emplace_back(FrameType::kVideoFrameDelta);
     }
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(input_frame, nullptr, &frame_types));
+              encoder_->Encode(input_frame, &frame_types));
     ASSERT_TRUE(WaitForEncodedFrame(encoded_frame, codec_specific_info));
     VerifyQpParser(*encoded_frame);
     VideoEncoder::EncoderInfo encoder_info = encoder_->GetEncoderInfo();
@@ -138,7 +138,7 @@ TEST_F(TestVp8Impl, EncodeFrameAndRelease) {
 
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Release());
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_UNINITIALIZED,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
 }
 
 TEST_F(TestVp8Impl, InitDecode) {
diff --git a/modules/video_coding/codecs/vp9/test/vp9_impl_unittest.cc b/modules/video_coding/codecs/vp9/test/vp9_impl_unittest.cc
index 7b5f07b844..cd29915b9c 100644
--- a/modules/video_coding/codecs/vp9/test/vp9_impl_unittest.cc
+++ b/modules/video_coding/codecs/vp9/test/vp9_impl_unittest.cc
@@ -122,8 +122,7 @@ TEST_F(TestVp9Impl, DISABLED_EncodeDecode) {
 TEST_F(TestVp9Impl, EncodeDecode) {
 #endif
   VideoFrame* input_frame = NextInputFrame();
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -155,8 +154,7 @@ TEST_F(TestVp9Impl, EncodeDecode) {
 TEST_F(TestVp9Impl, EncodedRotationEqualsInputRotation) {
   VideoFrame* input_frame = NextInputFrame();
   input_frame->set_rotation(kVideoRotation_0);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -164,8 +162,7 @@ TEST_F(TestVp9Impl, EncodedRotationEqualsInputRotation) {
 
   input_frame = NextInputFrame();
   input_frame->set_rotation(kVideoRotation_90);
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
   EXPECT_EQ(kVideoRotation_90, encoded_frame.rotation_);
 }
@@ -173,8 +170,7 @@ TEST_F(TestVp9Impl, EncodedRotationEqualsInputRotation) {
 TEST_F(TestVp9Impl, EncodedColorSpaceEqualsInputColorSpace) {
   // Video frame without explicit color space information.
   VideoFrame* input_frame = NextInputFrame();
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -188,7 +184,7 @@ TEST_F(TestVp9Impl, EncodedColorSpaceEqualsInputColorSpace) {
           .set_color_space(color_space)
           .build();
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(input_frame_w_hdr, nullptr, nullptr));
+            encoder_->Encode(input_frame_w_hdr, nullptr));
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
   ASSERT_TRUE(encoded_frame.ColorSpace());
   EXPECT_EQ(*encoded_frame.ColorSpace(), color_space);
@@ -196,7 +192,7 @@ TEST_F(TestVp9Impl, EncodedColorSpaceEqualsInputColorSpace) {
 
 TEST_F(TestVp9Impl, DecodedColorSpaceEqualsEncodedColorSpace) {
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -226,7 +222,7 @@ TEST_F(TestVp9Impl, DecodedColorSpaceEqualsEncodedColorSpace) {
 
 TEST_F(TestVp9Impl, DecodedQpEqualsEncodedQp) {
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -244,7 +240,7 @@ TEST_F(TestVp9Impl, DecodedQpEqualsEncodedQp) {
 
 TEST_F(TestVp9Impl, ParserQpEqualsEncodedQp) {
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -265,7 +261,7 @@ TEST_F(TestVp9Impl, EncoderWith2TemporalLayers) {
 
   // Temporal layer 0.
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -273,17 +269,17 @@ TEST_F(TestVp9Impl, EncoderWith2TemporalLayers) {
 
   // Temporal layer 1.
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ExpectFrameWith(1);
 
   // Temporal layer 0.
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ExpectFrameWith(0);
 
   // Temporal layer 1.
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ExpectFrameWith(1);
 }
 
@@ -295,7 +291,7 @@ TEST_F(TestVp9Impl, EncoderWith2SpatialLayers) {
 
   SetWaitForEncodedFramesThreshold(2);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   std::vector<EncodedImage> encoded_frame;
   std::vector<CodecSpecificInfo> codec_info;
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_info));
@@ -386,7 +382,7 @@ TEST_F(TestVp9Impl, EnableDisableSpatialLayers) {
     for (size_t frame_num = 0; frame_num < num_frames_to_encode; ++frame_num) {
       SetWaitForEncodedFramesThreshold(sl_idx + 1);
       EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-                encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+                encoder_->Encode(*NextInputFrame(), nullptr));
       std::vector<EncodedImage> encoded_frame;
       std::vector<CodecSpecificInfo> codec_specific_info;
       ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
@@ -405,7 +401,7 @@ TEST_F(TestVp9Impl, EnableDisableSpatialLayers) {
     for (size_t frame_num = 0; frame_num < num_frames_to_encode; ++frame_num) {
       SetWaitForEncodedFramesThreshold(sl_idx);
       EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-                encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+                encoder_->Encode(*NextInputFrame(), nullptr));
       std::vector<EncodedImage> encoded_frame;
       std::vector<CodecSpecificInfo> codec_specific_info;
       ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
@@ -435,7 +431,7 @@ TEST_F(TestVp9Impl, EndOfPicture) {
                                         codec_settings_.maxFramerate));
   SetWaitForEncodedFramesThreshold(2);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
 
   std::vector<EncodedImage> frames;
   std::vector<CodecSpecificInfo> codec_specific;
@@ -455,7 +451,7 @@ TEST_F(TestVp9Impl, EndOfPicture) {
 
   SetWaitForEncodedFramesThreshold(1);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
 
   ASSERT_TRUE(WaitForEncodedFrames(&frames, &codec_specific));
   EXPECT_FALSE(frames[0].SpatialIndex());
@@ -489,7 +485,7 @@ TEST_F(TestVp9Impl, InterLayerPred) {
 
     SetWaitForEncodedFramesThreshold(2);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
 
     std::vector<EncodedImage> frames;
     std::vector<CodecSpecificInfo> codec_specific;
@@ -505,7 +501,7 @@ TEST_F(TestVp9Impl, InterLayerPred) {
 
     SetWaitForEncodedFramesThreshold(2);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     ASSERT_TRUE(WaitForEncodedFrames(&frames, &codec_specific));
 
     // Delta frame.
@@ -550,7 +546,7 @@ TEST_F(TestVp9Impl,
            ++frame_num) {
         SetWaitForEncodedFramesThreshold(sl_idx + 1);
         EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-                  encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+                  encoder_->Encode(*NextInputFrame(), nullptr));
         std::vector<EncodedImage> encoded_frame;
         std::vector<CodecSpecificInfo> codec_specific_info;
         ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
@@ -606,7 +602,7 @@ TEST_F(TestVp9Impl,
            ++frame_num) {
         SetWaitForEncodedFramesThreshold(sl_idx + 1);
         EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-                  encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+                  encoder_->Encode(*NextInputFrame(), nullptr));
         std::vector<EncodedImage> encoded_frame;
         std::vector<CodecSpecificInfo> codec_specific_info;
         ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
@@ -667,7 +663,7 @@ TEST_F(TestVp9Impl, EnablingDisablingUpperLayerInTheSameGof) {
   for (int i = 0; i < 3; ++i) {
     SetWaitForEncodedFramesThreshold(2);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
     ASSERT_EQ(codec_specific_info.size(), 2u);
   }
@@ -682,7 +678,7 @@ TEST_F(TestVp9Impl, EnablingDisablingUpperLayerInTheSameGof) {
   // Encode 1 frame.
   SetWaitForEncodedFramesThreshold(1);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
   ASSERT_EQ(codec_specific_info.size(), 1u);
   EXPECT_EQ(encoded_frame[0]._frameType, kVideoFrameDelta);
@@ -701,7 +697,7 @@ TEST_F(TestVp9Impl, EnablingDisablingUpperLayerInTheSameGof) {
   // Encode 1 frame.
   SetWaitForEncodedFramesThreshold(2);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
   ASSERT_EQ(codec_specific_info.size(), 2u);
   EXPECT_EQ(encoded_frame[0]._frameType, kVideoFrameDelta);
@@ -745,7 +741,7 @@ TEST_F(TestVp9Impl, EnablingDisablingUpperLayerAccrossGof) {
   for (int i = 0; i < 3; ++i) {
     SetWaitForEncodedFramesThreshold(2);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
     ASSERT_EQ(codec_specific_info.size(), 2u);
   }
@@ -761,7 +757,7 @@ TEST_F(TestVp9Impl, EnablingDisablingUpperLayerAccrossGof) {
   for (int i = 0; i < 11; ++i) {
     SetWaitForEncodedFramesThreshold(1);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
     ASSERT_EQ(codec_specific_info.size(), 1u);
     EXPECT_EQ(encoded_frame[0]._frameType, kVideoFrameDelta);
@@ -782,7 +778,7 @@ TEST_F(TestVp9Impl, EnablingDisablingUpperLayerAccrossGof) {
   // Encode 1 frame.
   SetWaitForEncodedFramesThreshold(2);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frame, &codec_specific_info));
   ASSERT_EQ(codec_specific_info.size(), 2u);
   EXPECT_EQ(encoded_frame[0]._frameType, kVideoFrameDelta);
@@ -832,7 +828,7 @@ TEST_F(TestVp9Impl, EnablingNewLayerIsDelayedInScreenshareAndAddsSsInfo) {
        ++frame_num) {
     SetWaitForEncodedFramesThreshold(num_spatial_layers - 1);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     std::vector<EncodedImage> encoded_frames;
     std::vector<CodecSpecificInfo> codec_specific_info;
     ASSERT_TRUE(WaitForEncodedFrames(&encoded_frames, &codec_specific_info));
@@ -850,7 +846,7 @@ TEST_F(TestVp9Impl, EnablingNewLayerIsDelayedInScreenshareAndAddsSsInfo) {
   for (size_t frame_num = 0; frame_num < num_dropped_frames; ++frame_num) {
     SetWaitForEncodedFramesThreshold(1);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     // First layer is dropped due to frame rate cap. The last layer should not
     // be enabled yet.
     std::vector<EncodedImage> encoded_frames;
@@ -860,7 +856,7 @@ TEST_F(TestVp9Impl, EnablingNewLayerIsDelayedInScreenshareAndAddsSsInfo) {
 
   SetWaitForEncodedFramesThreshold(2);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   // Now all 3 layers should be encoded.
   std::vector<EncodedImage> encoded_frames;
   std::vector<CodecSpecificInfo> codec_specific_info;
@@ -910,7 +906,7 @@ TEST_F(TestVp9Impl, RemovingLayerIsNotDelayedInScreenshareAndAddsSsInfo) {
        ++frame_num) {
     SetWaitForEncodedFramesThreshold(num_spatial_layers);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     std::vector<EncodedImage> encoded_frames;
     std::vector<CodecSpecificInfo> codec_specific_info;
     ASSERT_TRUE(WaitForEncodedFrames(&encoded_frames, &codec_specific_info));
@@ -920,7 +916,7 @@ TEST_F(TestVp9Impl, RemovingLayerIsNotDelayedInScreenshareAndAddsSsInfo) {
   for (size_t frame_num = 0; frame_num < num_dropped_frames - 2; ++frame_num) {
     SetWaitForEncodedFramesThreshold(2);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     // First layer is dropped due to frame rate cap. The last layer should not
     // be enabled yet.
     std::vector<EncodedImage> encoded_frames;
@@ -942,7 +938,7 @@ TEST_F(TestVp9Impl, RemovingLayerIsNotDelayedInScreenshareAndAddsSsInfo) {
     // Expect back one frame.
     SetWaitForEncodedFramesThreshold(1);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
     // First layer is dropped due to frame rate cap. The last layer should not
     // be enabled yet.
     std::vector<EncodedImage> encoded_frames;
@@ -956,7 +952,7 @@ TEST_F(TestVp9Impl, RemovingLayerIsNotDelayedInScreenshareAndAddsSsInfo) {
 
   SetWaitForEncodedFramesThreshold(2);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   std::vector<EncodedImage> encoded_frames;
   std::vector<CodecSpecificInfo> codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frames, &codec_specific_info));
@@ -1000,7 +996,7 @@ TEST_F(TestVp9Impl, DisableNewLayerInVideoDelaysSsInfoTillTL0) {
   // Encode one TL0 frame
   SetWaitForEncodedFramesThreshold(num_spatial_layers);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frames, &codec_specific_info));
   EXPECT_EQ(codec_specific_info[0].codecSpecific.VP9.temporal_idx, 0u);
 
@@ -1016,14 +1012,14 @@ TEST_F(TestVp9Impl, DisableNewLayerInVideoDelaysSsInfoTillTL0) {
   // is not provided here.
   SetWaitForEncodedFramesThreshold(num_spatial_layers - 1);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frames, &codec_specific_info));
   EXPECT_EQ(codec_specific_info[0].codecSpecific.VP9.temporal_idx, 1u);
 
   // Next is TL0 frame, which should have delayed SS structure.
   SetWaitForEncodedFramesThreshold(num_spatial_layers - 1);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   ASSERT_TRUE(WaitForEncodedFrames(&encoded_frames, &codec_specific_info));
   EXPECT_EQ(codec_specific_info[0].codecSpecific.VP9.temporal_idx, 0u);
   EXPECT_TRUE(codec_specific_info[0].codecSpecific.VP9.ss_data_available);
@@ -1051,7 +1047,7 @@ TEST_F(TestVp9Impl,
             encoder_->SetRateAllocation(bitrate_allocation,
                                         codec_settings_.maxFramerate));
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_info));
@@ -1066,7 +1062,7 @@ TEST_F(TestVp9Impl, ScalabilityStructureIsAvailableInFlexibleMode) {
                                  0 /* max payload size (unused) */));
 
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+            encoder_->Encode(*NextInputFrame(), nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
@@ -1186,7 +1182,7 @@ TEST_P(TestVp9ImplWithLayering, FlexibleMode) {
        ++frame_num) {
     SetWaitForEncodedFramesThreshold(num_spatial_layers_);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
 
     const bool is_key_frame = frame_num == 0;
     const size_t gof_idx = frame_num % gof.num_frames_in_gof;
@@ -1225,7 +1221,7 @@ TEST_P(TestVp9ImplWithLayering, ExternalRefControl) {
        ++frame_num) {
     SetWaitForEncodedFramesThreshold(num_spatial_layers_);
     EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*NextInputFrame(), nullptr, nullptr));
+              encoder_->Encode(*NextInputFrame(), nullptr));
 
     const bool is_key_frame = frame_num == 0;
     const size_t gof_idx = frame_num % gof.num_frames_in_gof;
@@ -1269,8 +1265,7 @@ TEST_F(TestVp9ImplFrameDropping, PreEncodeFrameDropping) {
 
   VideoFrame* input_frame = NextInputFrame();
   for (size_t frame_num = 0; frame_num < num_frames_to_encode; ++frame_num) {
-    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*input_frame, nullptr, nullptr));
+    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
     const size_t timestamp = input_frame->timestamp() +
                              kVideoPayloadTypeFrequency / input_framerate_fps;
     input_frame->set_timestamp(static_cast<uint32_t>(timestamp));
@@ -1324,8 +1319,7 @@ TEST_F(TestVp9ImplFrameDropping, DifferentFrameratePerSpatialLayer) {
 
   VideoFrame* input_frame = NextInputFrame();
   for (size_t frame_num = 0; frame_num < num_input_frames; ++frame_num) {
-    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*input_frame, nullptr, nullptr));
+    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
     const size_t timestamp = input_frame->timestamp() +
                              kVideoPayloadTypeFrequency / input_framerate_fps;
     input_frame->set_timestamp(static_cast<uint32_t>(timestamp));
@@ -1380,8 +1374,7 @@ TEST_F(TestVp9ImplFrameDropping, LayerMaxFramerateIsCappedByCodecMaxFramerate) {
 
   VideoFrame* input_frame = NextInputFrame();
   for (size_t frame_num = 0; frame_num < num_input_frames; ++frame_num) {
-    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-              encoder_->Encode(*input_frame, nullptr, nullptr));
+    EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
     const size_t timestamp = input_frame->timestamp() +
                              kVideoPayloadTypeFrequency / input_framerate_fps;
     input_frame->set_timestamp(static_cast<uint32_t>(timestamp));
@@ -1432,8 +1425,7 @@ TEST_F(TestVp9ImplProfile2, EncodeDecode) {
     return;
 
   VideoFrame* input_frame = NextInputFrame();
-  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->Encode(*input_frame, nullptr, nullptr));
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Encode(*input_frame, nullptr));
   EncodedImage encoded_frame;
   CodecSpecificInfo codec_specific_info;
   ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame, &codec_specific_info));
diff --git a/modules/video_coding/utility/simulcast_test_fixture_impl.cc b/modules/video_coding/utility/simulcast_test_fixture_impl.cc
index 78cb0f5fe9..2d696544ac 100644
--- a/modules/video_coding/utility/simulcast_test_fixture_impl.cc
+++ b/modules/video_coding/utility/simulcast_test_fixture_impl.cc
@@ -303,11 +303,11 @@ void SimulcastTestFixtureImpl::RunActiveStreamsTest(
 
   ExpectStreams(kVideoFrameKey, active_streams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, active_streams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::UpdateActiveStreams(
@@ -399,33 +399,33 @@ void SimulcastTestFixtureImpl::TestKeyFrameRequestsOnAllStreams() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, kNumberOfSimulcastStreams);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, kNumberOfSimulcastStreams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   frame_types[0] = kVideoFrameKey;
   ExpectStreams(kVideoFrameKey, kNumberOfSimulcastStreams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   std::fill(frame_types.begin(), frame_types.end(), kVideoFrameDelta);
   frame_types[1] = kVideoFrameKey;
   ExpectStreams(kVideoFrameKey, kNumberOfSimulcastStreams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   std::fill(frame_types.begin(), frame_types.end(), kVideoFrameDelta);
   frame_types[2] = kVideoFrameKey;
   ExpectStreams(kVideoFrameKey, kNumberOfSimulcastStreams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   std::fill(frame_types.begin(), frame_types.end(), kVideoFrameDelta);
   ExpectStreams(kVideoFrameDelta, kNumberOfSimulcastStreams);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestPaddingAllStreams() {
@@ -434,11 +434,11 @@ void SimulcastTestFixtureImpl::TestPaddingAllStreams() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 1);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 1);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestPaddingTwoStreams() {
@@ -447,11 +447,11 @@ void SimulcastTestFixtureImpl::TestPaddingTwoStreams() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 1);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 1);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestPaddingTwoStreamsOneMaxedOut() {
@@ -461,11 +461,11 @@ void SimulcastTestFixtureImpl::TestPaddingTwoStreamsOneMaxedOut() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 1);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 1);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestPaddingOneStream() {
@@ -474,11 +474,11 @@ void SimulcastTestFixtureImpl::TestPaddingOneStream() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 2);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 2);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestPaddingOneStreamTwoMaxedOut() {
@@ -488,11 +488,11 @@ void SimulcastTestFixtureImpl::TestPaddingOneStreamTwoMaxedOut() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 2);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 2);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestSendAllStreams() {
@@ -501,11 +501,11 @@ void SimulcastTestFixtureImpl::TestSendAllStreams() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 3);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 3);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestDisablingStreams() {
@@ -514,44 +514,44 @@ void SimulcastTestFixtureImpl::TestDisablingStreams() {
   std::vector<FrameType> frame_types(kNumberOfSimulcastStreams,
                                      kVideoFrameDelta);
   ExpectStreams(kVideoFrameKey, 3);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   ExpectStreams(kVideoFrameDelta, 3);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   // We should only get two streams and padding for one.
   SetRates(kTargetBitrates[0] + kTargetBitrates[1] + kMinBitrates[2] / 2, 30);
   ExpectStreams(kVideoFrameDelta, 2);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   // We should only get the first stream and padding for two.
   SetRates(kTargetBitrates[0] + kMinBitrates[1] / 2, 30);
   ExpectStreams(kVideoFrameDelta, 1);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   // We don't have enough bitrate for the thumbnail stream, but we should get
   // it anyway with current configuration.
   SetRates(kTargetBitrates[0] - 1, 30);
   ExpectStreams(kVideoFrameDelta, 1);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   // We should only get two streams and padding for one.
   SetRates(kTargetBitrates[0] + kTargetBitrates[1] + kMinBitrates[2] / 2, 30);
   // We get a key frame because a new stream is being enabled.
   ExpectStreams(kVideoFrameKey, 2);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   // We should get all three streams.
   SetRates(kTargetBitrates[0] + kTargetBitrates[1] + kTargetBitrates[2], 30);
   // We get a key frame because a new stream is being enabled.
   ExpectStreams(kVideoFrameKey, 3);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestActiveStreams() {
@@ -628,7 +628,7 @@ void SimulcastTestFixtureImpl::SwitchingToOneStream(int width, int height) {
       .Times(1)
       .WillRepeatedly(Return(
           EncodedImageCallback::Result(EncodedImageCallback::Result::OK, 0)));
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 
   // Switch back.
   DefaultSettings(&settings_, temporal_layer_profile, codec_type_);
@@ -647,7 +647,7 @@ void SimulcastTestFixtureImpl::SwitchingToOneStream(int width, int height) {
           .set_rotation(webrtc::kVideoRotation_0)
           .set_timestamp_us(0)
           .build());
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, &frame_types));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, &frame_types));
 }
 
 void SimulcastTestFixtureImpl::TestSwitchingToOneStream() {
@@ -675,7 +675,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers333PatternEncoder() {
   bool expected_layer_sync[3] = {false, false, false};
 
   // First frame: #0.
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(0, 0, 0, expected_temporal_idx);
   SetExpectedValues3<bool>(true, true, true, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -683,7 +683,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers333PatternEncoder() {
 
   // Next frame: #1.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(2, 2, 2, expected_temporal_idx);
   SetExpectedValues3<bool>(true, true, true, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -691,7 +691,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers333PatternEncoder() {
 
   // Next frame: #2.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(1, 1, 1, expected_temporal_idx);
   SetExpectedValues3<bool>(true, true, true, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -699,7 +699,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers333PatternEncoder() {
 
   // Next frame: #3.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(2, 2, 2, expected_temporal_idx);
   SetExpectedValues3<bool>(false, false, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -707,7 +707,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers333PatternEncoder() {
 
   // Next frame: #4.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(0, 0, 0, expected_temporal_idx);
   SetExpectedValues3<bool>(false, false, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -715,7 +715,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers333PatternEncoder() {
 
   // Next frame: #5.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(2, 2, 2, expected_temporal_idx);
   SetExpectedValues3<bool>(false, false, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -745,7 +745,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers321PatternEncoder() {
   bool expected_layer_sync[3] = {false, false, false};
 
   // First frame: #0.
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(0, 0, 255, expected_temporal_idx);
   SetExpectedValues3<bool>(true, true, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -753,7 +753,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers321PatternEncoder() {
 
   // Next frame: #1.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(2, 1, 255, expected_temporal_idx);
   SetExpectedValues3<bool>(true, true, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -761,7 +761,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers321PatternEncoder() {
 
   // Next frame: #2.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(1, 0, 255, expected_temporal_idx);
   SetExpectedValues3<bool>(true, false, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -769,7 +769,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers321PatternEncoder() {
 
   // Next frame: #3.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(2, 1, 255, expected_temporal_idx);
   SetExpectedValues3<bool>(false, false, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -777,7 +777,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers321PatternEncoder() {
 
   // Next frame: #4.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(0, 0, 255, expected_temporal_idx);
   SetExpectedValues3<bool>(false, false, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -785,7 +785,7 @@ void SimulcastTestFixtureImpl::TestSpatioTemporalLayers321PatternEncoder() {
 
   // Next frame: #5.
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
   SetExpectedValues3<int>(2, 1, 255, expected_temporal_idx);
   SetExpectedValues3<bool>(false, true, false, expected_layer_sync);
   VerifyTemporalIdxAndSyncForAllSpatialLayers(
@@ -819,7 +819,7 @@ void SimulcastTestFixtureImpl::TestStrideEncodeDecode() {
   plane_offset[kVPlane] = kColorV;
   CreateImage(input_buffer_, plane_offset);
 
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
 
   // Change color.
   plane_offset[kYPlane] += 1;
@@ -827,7 +827,7 @@ void SimulcastTestFixtureImpl::TestStrideEncodeDecode() {
   plane_offset[kVPlane] += 1;
   CreateImage(input_buffer_, plane_offset);
   input_frame_->set_timestamp(input_frame_->timestamp() + 3000);
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
 
   EncodedImage encoded_frame;
   // Only encoding one frame - so will be a key frame.
@@ -866,7 +866,7 @@ void SimulcastTestFixtureImpl::TestDecodeWidthHeightSet() {
             return EncodedImageCallback::Result(
                 EncodedImageCallback::Result::OK, 0);
           }));
-  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL, NULL));
+  EXPECT_EQ(0, encoder_->Encode(*input_frame_, NULL));
 
   EXPECT_CALL(decoder_callback, Decoded(_, _, _))
       .WillOnce(testing::Invoke([](VideoFrame& decodedImage,
diff --git a/sdk/objc/unittests/objc_video_encoder_factory_tests.mm b/sdk/objc/unittests/objc_video_encoder_factory_tests.mm
index dd19a16728..9e862b05ad 100644
--- a/sdk/objc/unittests/objc_video_encoder_factory_tests.mm
+++ b/sdk/objc/unittests/objc_video_encoder_factory_tests.mm
@@ -84,11 +84,9 @@ TEST(ObjCVideoEncoderFactoryTest, EncodeReturnsOKOnSuccess) {
                                  .set_rotation(webrtc::kVideoRotation_0)
                                  .set_timestamp_us(0)
                                  .build();
-  webrtc::CodecSpecificInfo info;
-  info.codecType = webrtc::kVideoCodecH264;
   std::vector<webrtc::FrameType> frame_types;
 
-  EXPECT_EQ(encoder->Encode(frame, &info, &frame_types), WEBRTC_VIDEO_CODEC_OK);
+  EXPECT_EQ(encoder->Encode(frame, &frame_types), WEBRTC_VIDEO_CODEC_OK);
 }
 
 TEST(ObjCVideoEncoderFactoryTest, EncodeReturnsErrorOnFail) {
@@ -104,11 +102,9 @@ TEST(ObjCVideoEncoderFactoryTest, EncodeReturnsErrorOnFail) {
                                  .set_rotation(webrtc::kVideoRotation_0)
                                  .set_timestamp_us(0)
                                  .build();
-  webrtc::CodecSpecificInfo info;
-  info.codecType = webrtc::kVideoCodecH264;
   std::vector<webrtc::FrameType> frame_types;
 
-  EXPECT_EQ(encoder->Encode(frame, &info, &frame_types), WEBRTC_VIDEO_CODEC_ERROR);
+  EXPECT_EQ(encoder->Encode(frame, &frame_types), WEBRTC_VIDEO_CODEC_ERROR);
 }
 
 TEST(ObjCVideoEncoderFactoryTest, ReleaseEncodeReturnsOKOnSuccess) {
diff --git a/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.cc b/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.cc
index 95cf98aca8..e2557778f1 100644
--- a/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.cc
+++ b/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.cc
@@ -87,7 +87,6 @@ int32_t QualityAnalyzingVideoEncoder::Release() {
 
 int32_t QualityAnalyzingVideoEncoder::Encode(
     const VideoFrame& frame,
-    const CodecSpecificInfo* codec_specific_info,
     const std::vector<FrameType>* frame_types) {
   {
     rtc::CritScope crit(&lock_);
@@ -98,7 +97,7 @@ int32_t QualityAnalyzingVideoEncoder::Encode(
     RTC_DCHECK_LT(timestamp_to_frame_id_list_.size(), kMaxFrameInPipelineCount);
   }
   analyzer_->OnFramePreEncode(frame);
-  int32_t result = delegate_->Encode(frame, codec_specific_info, frame_types);
+  int32_t result = delegate_->Encode(frame, frame_types);
   if (result != WEBRTC_VIDEO_CODEC_OK) {
     // If origin encoder failed, then cleanup data for this frame.
     {
diff --git a/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.h b/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.h
index b59c81cfe4..a9a5873f81 100644
--- a/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.h
+++ b/test/pc/e2e/analyzer/video/quality_analyzing_video_encoder.h
@@ -68,7 +68,6 @@ class QualityAnalyzingVideoEncoder : public VideoEncoder,
       EncodedImageCallback* callback) override;
   int32_t Release() override;
   int32_t Encode(const VideoFrame& frame,
-                 const CodecSpecificInfo* codec_specific_info,
                  const std::vector<FrameType>* frame_types) override;
   int32_t SetRates(uint32_t bitrate, uint32_t framerate) override;
   int32_t SetRateAllocation(const VideoBitrateAllocation& allocation,
diff --git a/test/video_encoder_proxy_factory.h b/test/video_encoder_proxy_factory.h
index 9e5ea12ce2..7f5f6fcfcd 100644
--- a/test/video_encoder_proxy_factory.h
+++ b/test/video_encoder_proxy_factory.h
@@ -62,9 +62,8 @@ class VideoEncoderProxyFactory final : public VideoEncoderFactory {
 
    private:
     int32_t Encode(const VideoFrame& input_image,
-                   const CodecSpecificInfo* codec_specific_info,
                    const std::vector<FrameType>* frame_types) override {
-      return encoder_->Encode(input_image, codec_specific_info, frame_types);
+      return encoder_->Encode(input_image, frame_types);
     }
     int32_t InitEncode(const VideoCodec* config,
                        int32_t number_of_cores,
diff --git a/video/video_quality_test.cc b/video/video_quality_test.cc
index d40bab7e17..2b20a8dca2 100644
--- a/video/video_quality_test.cc
+++ b/video/video_quality_test.cc
@@ -142,12 +142,11 @@ class QualityTestVideoEncoder : public VideoEncoder,
   }
   int32_t Release() override { return encoder_->Release(); }
   int32_t Encode(const VideoFrame& frame,
-                 const CodecSpecificInfo* codec_specific_info,
                  const std::vector<FrameType>* frame_types) {
     if (analyzer_) {
       analyzer_->PreEncodeOnFrame(frame);
     }
-    return encoder_->Encode(frame, codec_specific_info, frame_types);
+    return encoder_->Encode(frame, frame_types);
   }
   int32_t SetRateAllocation(const VideoBitrateAllocation& allocation,
                             uint32_t framerate) override {
diff --git a/video/video_stream_encoder.cc b/video/video_stream_encoder.cc
index 528a77e24b..4b75c621ac 100644
--- a/video/video_stream_encoder.cc
+++ b/video/video_stream_encoder.cc
@@ -1268,8 +1268,7 @@ void VideoStreamEncoder::EncodeVideoFrame(const VideoFrame& video_frame,
   frame_encoder_timer_.OnEncodeStarted(out_frame.timestamp(),
                                        out_frame.render_time_ms());
 
-  const int32_t encode_status =
-      encoder_->Encode(out_frame, nullptr, &next_frame_types_);
+  const int32_t encode_status = encoder_->Encode(out_frame, &next_frame_types_);
 
   if (encode_status < 0) {
     RTC_LOG(LS_ERROR) << "Failed to encode frame. Error code: "
@@ -1307,7 +1306,6 @@ void VideoStreamEncoder::SendKeyFrame() {
                              .set_rotation(kVideoRotation_0)
                              .set_timestamp_us(0)
                              .build(),
-                         nullptr,
                          &next_frame_types_) == WEBRTC_VIDEO_CODEC_OK) {
       // Try to remove just-performed keyframe request, if stream still exists.
       next_frame_types_[0] = kVideoFrameDelta;