Let ViEEncoder handle resolution changes.

webrtc/media/engine/webrtcvideoengine2_unittest.cc

 /*
  *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 1059 matching lines @@
         rtx_ssrcs.push_back(ssrc + kRtxSsrcOffset);
       }
     }
     if (with_rtx) {
       return AddSendStream(
           cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
     }
     return AddSendStream(CreateSimStreamParams("cname", ssrcs));
   }
 
-  int GetMaxEncoderBitrate(cricket::FakeVideoCapturer& capturer) {
-    EXPECT_TRUE(capturer.CaptureFrame());
-
+  int GetMaxEncoderBitrate() {
     std::vector<FakeVideoSendStream*> streams =
         fake_call_->GetVideoSendStreams();
-    EXPECT_TRUE(streams.size() > 0);
+    EXPECT_EQ(1u, streams.size());
     FakeVideoSendStream* stream = streams[streams.size() - 1];
-
-    webrtc::VideoEncoderConfig encoder_config =
-        stream->GetEncoderConfig().Copy();
-    EXPECT_EQ(1, encoder_config.streams.size());
-    return encoder_config.streams[0].max_bitrate_bps;
+    EXPECT_EQ(1, stream->GetEncoderConfig().number_of_streams);
+    return stream->GetVideoStreams()[0].max_bitrate_bps;
   }
 
-  void SetAndExpectMaxBitrate(cricket::FakeVideoCapturer& capturer,
-                              int global_max,
+  void SetAndExpectMaxBitrate(int global_max,
                               int stream_max,
                               int expected_encoder_bitrate) {
     VideoSendParameters limited_send_params = send_parameters_;
     limited_send_params.max_bandwidth_bps = global_max;
     EXPECT_TRUE(channel_->SetSendParameters(limited_send_params));
     webrtc::RtpParameters parameters =
         channel_->GetRtpSendParameters(last_ssrc_);
     EXPECT_EQ(1UL, parameters.encodings.size());
     parameters.encodings[0].max_bitrate_bps = stream_max;
     EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
     // Read back the parameteres and verify they have the correct value
     parameters = channel_->GetRtpSendParameters(last_ssrc_);
     EXPECT_EQ(1UL, parameters.encodings.size());
     EXPECT_EQ(stream_max, parameters.encodings[0].max_bitrate_bps);
     // Verify that the new value propagated down to the encoder
-    EXPECT_EQ(expected_encoder_bitrate, GetMaxEncoderBitrate(capturer));
+    EXPECT_EQ(expected_encoder_bitrate, GetMaxEncoderBitrate());
   }
 
   std::unique_ptr<FakeCall> fake_call_;
   std::unique_ptr<VideoMediaChannel> channel_;
   cricket::VideoSendParameters send_parameters_;
   cricket::VideoRecvParameters recv_parameters_;
   uint32_t last_ssrc_;
 };
 
 TEST_F(WebRtcVideoChannel2Test, SetsSyncGroupFromSyncLabel) {
@@ skipping 391 matching lines @@
 // same source that will be sent later, which just means that we're ready
 // earlier.
 TEST_F(WebRtcVideoChannel2Test, ReconfiguresEncodersWhenNotSending) {
   cricket::VideoSendParameters parameters;
   parameters.codecs.push_back(kVp8Codec720p);
   ASSERT_TRUE(channel_->SetSendParameters(parameters));
   channel_->SetSend(false);
 
   FakeVideoSendStream* stream = AddSendStream();
 
-  // No frames entered, using default dimensions.
+  // No frames entered.
   std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
-  EXPECT_EQ(176u, streams[0].width);
-  EXPECT_EQ(144u, streams[0].height);
+  EXPECT_EQ(0u, streams[0].width);
+  EXPECT_EQ(0u, streams[0].height);
 
   cricket::FakeVideoCapturer capturer;
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
   EXPECT_EQ(cricket::CS_RUNNING,
             capturer.Start(capturer.GetSupportedFormats()->front()));
   EXPECT_TRUE(capturer.CaptureFrame());
 
   // Frame entered, should be reconfigured to new dimensions.
   streams = stream->GetVideoStreams();
   EXPECT_EQ(kVp8Codec720p.width, streams[0].width);
   EXPECT_EQ(kVp8Codec720p.height, streams[0].height);
-  // No frames should have been actually put in there though.
-  EXPECT_EQ(0, stream->GetNumberOfSwappedFrames());
 
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 TEST_F(WebRtcVideoChannel2Test, UsesCorrectSettingsForScreencast) {
   static const int kScreenshareMinBitrateKbps = 800;
   cricket::VideoCodec codec = kVp8Codec360p;
   cricket::VideoSendParameters parameters;
   parameters.codecs.push_back(codec);
   EXPECT_TRUE(channel_->SetSendParameters(parameters));
@@ skipping 17 matching lines @@
   ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
   FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
 
   EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
 
   // Verify non-screencast settings.
   webrtc::VideoEncoderConfig encoder_config =
       send_stream->GetEncoderConfig().Copy();
   EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo,
             encoder_config.content_type);
-  EXPECT_EQ(codec.width, encoder_config.streams.front().width);
-  EXPECT_EQ(codec.height, encoder_config.streams.front().height);
+  std::vector<webrtc::VideoStream> streams = send_stream->GetVideoStreams();
+  EXPECT_EQ(capture_format_hd.width, streams.front().width);
+  EXPECT_EQ(capture_format_hd.height, streams.front().height);
   EXPECT_EQ(0, encoder_config.min_transmit_bitrate_bps)
       << "Non-screenshare shouldn't use min-transmit bitrate.";
 
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
   // Removing a capturer triggers a black frame to be sent.
   EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
   VideoOptions screencast_options;
   screencast_options.is_screencast = rtc::Optional<bool>(true);
   EXPECT_TRUE(
       channel_->SetVideoSend(last_ssrc_, true, &screencast_options, &capturer));
   EXPECT_TRUE(capturer.CaptureFrame());
   // Send stream not recreated after option change.
   ASSERT_EQ(send_stream, fake_call_->GetVideoSendStreams().front());
   EXPECT_EQ(3, send_stream->GetNumberOfSwappedFrames());
 
   // Verify screencast settings.
   encoder_config = send_stream->GetEncoderConfig().Copy();
   EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
             encoder_config.content_type);
   EXPECT_EQ(kScreenshareMinBitrateKbps * 1000,
             encoder_config.min_transmit_bitrate_bps);
 
-  EXPECT_EQ(capture_format_hd.width, encoder_config.streams.front().width);
-  EXPECT_EQ(capture_format_hd.height, encoder_config.streams.front().height);
-  EXPECT_TRUE(encoder_config.streams[0].temporal_layer_thresholds_bps.empty());
-
+  streams = send_stream->GetVideoStreams();
+  EXPECT_EQ(capture_format_hd.width, streams.front().width);
+  EXPECT_EQ(capture_format_hd.height, streams.front().height);
+  EXPECT_TRUE(streams[0].temporal_layer_thresholds_bps.empty());
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 TEST_F(WebRtcVideoChannel2Test, NoRecreateStreamForScreencast) {
   EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
   ASSERT_TRUE(
       channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
   EXPECT_TRUE(channel_->SetSend(true));
 
   cricket::FakeVideoCapturer capturer;
@@ skipping 63 matching lines @@
   ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
   FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
 
   webrtc::VideoEncoderConfig encoder_config =
       send_stream->GetEncoderConfig().Copy();
 
   // Verify screencast settings.
   encoder_config = send_stream->GetEncoderConfig().Copy();
   EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
             encoder_config.content_type);
-  ASSERT_EQ(1u, encoder_config.streams.size());
-  ASSERT_EQ(1u, encoder_config.streams[0].temporal_layer_thresholds_bps.size());
+
+  std::vector<webrtc::VideoStream> streams = send_stream->GetVideoStreams();
+  ASSERT_EQ(1u, streams.size());
+  ASSERT_EQ(1u, streams[0].temporal_layer_thresholds_bps.size());
   EXPECT_EQ(kConferenceScreencastTemporalBitrateBps,
-            encoder_config.streams[0].temporal_layer_thresholds_bps[0]);
+            streams[0].temporal_layer_thresholds_bps[0]);
 
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 TEST_F(WebRtcVideoChannel2Test, SuspendBelowMinBitrateDisabledByDefault) {
   FakeVideoSendStream* stream = AddSendStream();
   EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
 }
 
 TEST_F(WebRtcVideoChannel2Test, SetMediaConfigSuspendBelowMinBitrate) {
@@ skipping 97 matching lines @@
 
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 // Test that setting the same options doesn't result in the encoder being
 // reconfigured.
 TEST_F(WebRtcVideoChannel2Test, SetIdenticalOptionsDoesntReconfigureEncoder) {
   VideoOptions options;
   cricket::FakeVideoCapturer capturer;
 
-  FakeVideoSendStream* send_stream = AddSendStream();
+  AddSendStream();
   EXPECT_EQ(cricket::CS_RUNNING,
             capturer.Start(capturer.GetSupportedFormats()->front()));
+  cricket::VideoSendParameters parameters;
+  parameters.codecs.push_back(kVp8Codec720p);
+  ASSERT_TRUE(channel_->SetSendParameters(parameters));
+  FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
+
+  EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
   EXPECT_TRUE(capturer.CaptureFrame());
-  // Expect 2 reconfigurations at this point, from the initial configuration
-  // and from the dimensions of the first frame.
-  EXPECT_EQ(2, send_stream->num_encoder_reconfigurations());
+  // Expect 1 reconfigurations at this point from the initial configuration.
+  EXPECT_EQ(1, send_stream->num_encoder_reconfigurations());
 
   // Set the options one more time and expect no additional reconfigurations.
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
-  EXPECT_TRUE(capturer.CaptureFrame());
+  EXPECT_EQ(1, send_stream->num_encoder_reconfigurations());
+
+  // Change |options| and expect 2 reconfigurations.
+  options.is_screencast = rtc::Optional<bool>(true);
+  EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
   EXPECT_EQ(2, send_stream->num_encoder_reconfigurations());
 
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 class Vp9SettingsTest : public WebRtcVideoChannel2Test {
  public:
   Vp9SettingsTest() : Vp9SettingsTest("") {}
   explicit Vp9SettingsTest(const char* field_trials)
       : WebRtcVideoChannel2Test(field_trials) {
@@ skipping 472 matching lines @@
   ASSERT_TRUE(channel_->SetSendParameters(parameters));
   stream = fake_call_->GetVideoSendStreams()[0];
   ASSERT_TRUE(stream != NULL);
   config = stream->GetConfig().Copy();
   EXPECT_EQ(-1, config.rtp.fec.ulpfec_payload_type)
       << "SetSendCodec without FEC should disable current FEC.";
 }
 
 TEST_F(WebRtcVideoChannel2Test, SetSendCodecsChangesExistingStreams) {
   cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec720p);
+  cricket::VideoCodec codec720p(100, "VP8", 1280, 720, 30);
+  codec720p.SetParam(kCodecParamMaxQuantization, kDefaultQpMax);
+  parameters.codecs.push_back(codec720p);
+
   ASSERT_TRUE(channel_->SetSendParameters(parameters));
   channel_->SetSend(true);
 
   FakeVideoSendStream* stream = AddSendStream();
-
   cricket::FakeVideoCapturer capturer;
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(capturer.CaptureFrame());
 
   std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
-  EXPECT_EQ(kVp8Codec720p.width, streams[0].width);
-  EXPECT_EQ(kVp8Codec720p.height, streams[0].height);
+  EXPECT_EQ(kDefaultQpMax, streams[0].max_qp);
 
   parameters.codecs.clear();
-  parameters.codecs.push_back(kVp8Codec360p);
+  codec720p.SetParam(kCodecParamMaxQuantization, kDefaultQpMax + 1);
+  parameters.codecs.push_back(codec720p);
   ASSERT_TRUE(channel_->SetSendParameters(parameters));
   streams = fake_call_->GetVideoSendStreams()[0]->GetVideoStreams();
-  EXPECT_EQ(kVp8Codec360p.width, streams[0].width);
-  EXPECT_EQ(kVp8Codec360p.height, streams[0].height);
+  EXPECT_EQ(kDefaultQpMax + 1, streams[0].max_qp);
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithBitrates) {
   SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
                                      200000);
 }
 
 TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithHighMaxBitrate) {
   SetSendCodecsShouldWorkForBitrates("", 0, "", -1, "10000", 10000000);
@@ skipping 1064 matching lines @@
   AddSendStream();
 
   cricket::FakeVideoCapturer capturer;
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
   cricket::VideoFormat capture_format_hd =
       capturer.GetSupportedFormats()->front();
   EXPECT_EQ(1280, capture_format_hd.width);
   EXPECT_EQ(720, capture_format_hd.height);
   EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format_hd));
   EXPECT_TRUE(channel_->SetSend(true));
+  capturer.CaptureFrame();
 
-  int default_encoder_bitrate = GetMaxEncoderBitrate(capturer);
+  int default_encoder_bitrate = GetMaxEncoderBitrate();
   EXPECT_TRUE(default_encoder_bitrate > 1000);
 
   // TODO(skvlad): Resolve the inconsistency between the interpretation
   // of the global bitrate limit for audio and video:
   // - Audio: max_bandwidth_bps = 0 - fail the operation,
   //          max_bandwidth_bps = -1 - remove the bandwidth limit
   // - Video: max_bandwidth_bps = 0 - remove the bandwidth limit,
   //          max_bandwidth_bps = -1 - do not change the previously set
   //                                   limit.
 
-  SetAndExpectMaxBitrate(capturer, 1000, 0, 1000);
-  SetAndExpectMaxBitrate(capturer, 1000, 800, 800);
-  SetAndExpectMaxBitrate(capturer, 600, 800, 600);
-  SetAndExpectMaxBitrate(capturer, 0, 800, 800);
-  SetAndExpectMaxBitrate(capturer, 0, 0, default_encoder_bitrate);
+  SetAndExpectMaxBitrate(1000, 0, 1000);
+  SetAndExpectMaxBitrate(1000, 800, 800);
+  SetAndExpectMaxBitrate(600, 800, 600);
+  SetAndExpectMaxBitrate(0, 800, 800);
+  SetAndExpectMaxBitrate(0, 0, default_encoder_bitrate);
 
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
 }
 
 TEST_F(WebRtcVideoChannel2Test, CannotSetMaxBitrateForNonexistentStream) {
   webrtc::RtpParameters nonexistent_parameters =
       channel_->GetRtpSendParameters(last_ssrc_);
   EXPECT_EQ(0, nonexistent_parameters.encodings.size());
 
   nonexistent_parameters.encodings.push_back(webrtc::RtpEncodingParameters());
@@ skipping 385 matching lines @@
 }
 
 // Test that we normalize send codec format size in simulcast.
 TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWithOddSizeInSimulcast) {
   cricket::VideoCodec codec(kVp8Codec270p);
   codec.width += 1;
   codec.height += 1;
   VerifySimulcastSettings(codec, 2, 2);
 }
 }  // namespace cricket