Implement disabling and enabling media tracks

media/blink/webmediaplayer_impl.cc

 // Copyright 2013 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 "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
@@ skipping 549 matching lines @@
 
   return pipeline_metadata_.has_video;
 }
 
 bool WebMediaPlayerImpl::hasAudio() const {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
   return pipeline_metadata_.has_audio;
 }
 
+void WebMediaPlayerImpl::enabledAudioTracksChanged(
+    const blink::WebVector<blink::WebMediaPlayer::TrackId>& enabledTrackIds) {
+  DCHECK(main_task_runner_->BelongsToCurrentThread());
+
+  std::ostringstream logstr;
+  std::vector<MediaTrack::Id> enabledMediaTrackIds;
+  for (const auto& blinkTrackId : enabledTrackIds) {
+    MediaTrack::Id track_id = blinkTrackId.utf8().data();
+    logstr << track_id << " ";
+    enabledMediaTrackIds.push_back(track_id);
+  }
+  MEDIA_LOG(INFO, media_log_) << "Enabled audio tracks: [" << logstr.str()
+                              << "]";
+  pipeline_.OnEnabledAudioTracksChanged(enabledMediaTrackIds);
+}
+
+void WebMediaPlayerImpl::selectedVideoTrackChanged(
+    blink::WebMediaPlayer::TrackId* selectedTrackId) {
+  DCHECK(main_task_runner_->BelongsToCurrentThread());
+
+  std::ostringstream logstr;
+  std::vector<MediaTrack::Id> selectedVideoMediaTrackId;
+  if (selectedTrackId) {
+    selectedVideoMediaTrackId.push_back(selectedTrackId->utf8().data());
+    logstr << selectedVideoMediaTrackId[0];
+  }
+  MEDIA_LOG(INFO, media_log_) << "Selected video track: [" << logstr.str()
+                              << "]";
+  pipeline_.OnSelectedVideoTrackChanged(selectedVideoMediaTrackId);
+}
+
 blink::WebSize WebMediaPlayerImpl::naturalSize() const {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
   return blink::WebSize(pipeline_metadata_.natural_size);
 }
 
 bool WebMediaPlayerImpl::paused() const {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
 #if defined(OS_ANDROID)  // WMPI_CAST
@@ skipping 1079 matching lines @@
   if (isRemote())
     return;
 #endif
 
   // Idle timeout chosen arbitrarily.
   background_pause_timer_.Start(FROM_HERE, base::TimeDelta::FromSeconds(5),
                                 this, &WebMediaPlayerImpl::OnPause);
 }
 
 }  // namespace media