Allow media track switching.

media/test/pipeline_integration_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
@@ skipping 667 matching lines @@
       : service_manager::test::ServiceTest(
             "media_pipeline_integration_shelltests") {}
 
   void SetUp() override {
     ServiceTest::SetUp();
     InitializeMediaLibrary();
   }
 
  protected:
   std::unique_ptr<Renderer> CreateRenderer(
-      ScopedVector<VideoDecoder> prepend_video_decoders,
-      ScopedVector<AudioDecoder> prepend_audio_decoders) override {
+      CreateVideoDecodersCB prepend_video_decoders_cb,
+      CreateAudioDecodersCB prepend_audio_decoders_cb) override {
     connector()->BindInterface("media", &media_interface_factory_);
 
     mojom::RendererPtr mojo_renderer;
     media_interface_factory_->CreateRenderer(std::string(),
                                              mojo::MakeRequest(&mojo_renderer));
 
     return base::MakeUnique<MojoRenderer>(message_loop_.task_runner(),
                                           std::move(mojo_renderer));
   }
 
@@ skipping 427 matching lines @@
 
   // Disable video track first, to re-enable it later and stop the pipeline
   // (which destroys the media renderer) while video restart is pending.
   pipeline_->OnSelectedVideoTrackChanged(base::nullopt);
   ASSERT_TRUE(WaitUntilCurrentTimeIsAfter(TimestampMs(200)));
 
   pipeline_->OnSelectedVideoTrackChanged(MediaTrack::Id("1"));
   Stop();
 }
 
+TEST_F(PipelineIntegrationTest, SwitchAudioTrackDuringPlayback) {
+  ASSERT_EQ(PIPELINE_OK, Start("multitrack-3video-2audio.webm", kHashed));
+  Play();
+  ASSERT_TRUE(WaitUntilCurrentTimeIsAfter(TimestampMs(100)));
+  // The first audio track (TrackId=4) is enabled by default. This should
+  // disable TrackId=4 and enable TrackId=5.
+  std::vector<MediaTrack::Id> track_ids;
+  track_ids.push_back("5");
+  pipeline_->OnEnabledAudioTracksChanged(track_ids);
+  ASSERT_TRUE(WaitUntilCurrentTimeIsAfter(TimestampMs(200)));
+  Stop();
+}
+
+TEST_F(PipelineIntegrationTest, SwitchVideoTrackDuringPlayback) {
+  ASSERT_EQ(PIPELINE_OK, Start("multitrack-3video-2audio.webm", kHashed));
+  Play();
+  ASSERT_TRUE(WaitUntilCurrentTimeIsAfter(TimestampMs(100)));
+  // The first video track (TrackId=1) is enabled by default. This should
+  // disable TrackId=1 and enable TrackId=2.
+  pipeline_->OnSelectedVideoTrackChanged(MediaTrack::Id("2"));
+  ASSERT_TRUE(WaitUntilCurrentTimeIsAfter(TimestampMs(200)));
+  Stop();
+}
+
 TEST_F(PipelineIntegrationTest,
        MAYBE_CLOCKLESS(BasicPlaybackOpusOggTrimmingHashed)) {
   ASSERT_EQ(PIPELINE_OK,
             Start("opus-trimming-test.webm", kHashed | kClockless));
 
   Play();
 
   ASSERT_TRUE(WaitUntilOnEnded());
   EXPECT_HASH_EQ(kOpusEndTrimmingHash_1, GetAudioHash());
 
@@ skipping 504 matching lines @@
 #if BUILDFLAG(USE_PROPRIETARY_CODECS)
 
 TEST_F(PipelineIntegrationTest, BasicPlaybackHi10P) {
   ASSERT_EQ(PIPELINE_OK, Start("bear-320x180-hi10p.mp4", kClockless));
 
   Play();
 
   ASSERT_TRUE(WaitUntilOnEnded());
 }
 
-TEST_F(PipelineIntegrationTest, BasicFallback) {
+ScopedVector<VideoDecoder> CreateFailingVideoDecoder() {
   ScopedVector<VideoDecoder> failing_video_decoder;
   failing_video_decoder.push_back(new FailingVideoDecoder());
+  return failing_video_decoder;
+}
 
-  ASSERT_EQ(PIPELINE_OK,
-            Start("bear.mp4", kClockless, std::move(failing_video_decoder)));
+TEST_F(PipelineIntegrationTest, BasicFallback) {
+  ASSERT_EQ(PIPELINE_OK, Start("bear.mp4", kClockless,
+                               base::Bind(&CreateFailingVideoDecoder)));
 
   Play();
 
   ASSERT_TRUE(WaitUntilOnEnded());
 };
 
 TEST_F(PipelineIntegrationTest, MediaSource_ADTS) {
   MockMediaSource source("sfx.adts", kADTS, kAppendWholeFile);
   EXPECT_EQ(PIPELINE_OK, StartPipelineWithMediaSource(&source));
   source.EndOfStream();
@@ skipping 967 matching lines @@
 
 TEST_F(PipelineIntegrationTest, BasicPlaybackPositiveStartTime) {
   ASSERT_EQ(PIPELINE_OK, Start("nonzero-start-time.webm"));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
   ASSERT_EQ(base::TimeDelta::FromMicroseconds(396000),
             demuxer_->GetStartTime());
 }
 
 }  // namespace media