Pass ffmpeg media track info to HTMLMediaElement

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 173 matching lines @@
 #if defined(OS_ANDROID)  // WMPI_CAST
       cast_impl_(this, client_, params.context_3d_cb()),
 #endif
       volume_(1.0),
       volume_multiplier_(1.0),
       renderer_factory_(std::move(renderer_factory)),
       surface_manager_(params.surface_manager()),
       suppress_destruction_errors_(false) {
   DCHECK(!adjust_allocated_memory_cb_.is_null());
   DCHECK(renderer_factory_);
+  DCHECK(client_);
 
   if (delegate_)
     delegate_id_ = delegate_->AddObserver(this);
 
   media_log_->AddEvent(
       media_log_->CreateEvent(MediaLogEvent::WEBMEDIAPLAYER_CREATED));
 
   if (params.initial_cdm()) {
     SetCdm(base::Bind(&IgnoreCdmAttached),
            ToWebContentDecryptionModuleImpl(params.initial_cdm())
@@ skipping 592 matching lines @@
       ConvertToWebInitDataType(init_data_type), init_data.data(),
       base::saturated_cast<unsigned int>(init_data.size()));
 }
 
 void WebMediaPlayerImpl::OnFFmpegMediaTracksUpdated(
     scoped_ptr<MediaTracks> tracks) {
   // For MSE/chunk_demuxer case the media track updates are handled by
   // WebSourceBufferImpl.
   DCHECK(demuxer_.get());
   DCHECK(!chunk_demuxer_);
+
+  // Report the media track information to blink.
+  for (const auto& track : tracks->tracks()) {
+    if (track->type() == MediaTrack::Audio) {
+      auto track_id = client_->addAudioTrack(
+          blink::WebString::fromUTF8(track->id()),
+          blink::WebMediaPlayerClient::AudioTrackKindMain,
+          blink::WebString::fromUTF8(track->label()),
+          blink::WebString::fromUTF8(track->language()),
+          /*enabled*/ true);
+      (void)track_id;
+    } else if (track->type() == MediaTrack::Video) {
+      auto track_id = client_->addVideoTrack(
+          blink::WebString::fromUTF8(track->id()),
+          blink::WebMediaPlayerClient::VideoTrackKindMain,
+          blink::WebString::fromUTF8(track->label()),
+          blink::WebString::fromUTF8(track->language()),
+          /*selected*/ true);
+      (void)track_id;
+    } else {
+      // Text tracks are not supported through this code path yet.
+      NOTREACHED();
+    }
+  }
 }
 
 void WebMediaPlayerImpl::OnWaitingForDecryptionKey() {
   encrypted_client_->didBlockPlaybackWaitingForKey();
 
   // TODO(jrummell): didResumePlaybackBlockedForKey() should only be called
   // when a key has been successfully added (e.g. OnSessionKeysChange() with
   // |has_additional_usable_key| = true). http://crbug.com/461903
   encrypted_client_->didResumePlaybackBlockedForKey();
 }
@@ skipping 386 matching lines @@
   Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb =
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnEncryptedMediaInitData);
 
   // Figure out which demuxer to use.
   if (load_type_ != LoadTypeMediaSource) {
     DCHECK(!chunk_demuxer_);
     DCHECK(data_source_);
 
 #if !defined(MEDIA_DISABLE_FFMPEG)
     Demuxer::MediaTracksUpdatedCB media_tracks_updated_cb =
-        base::Bind(&WebMediaPlayerImpl::OnFFmpegMediaTracksUpdated,
-                   base::Unretained(this));
+        BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnFFmpegMediaTracksUpdated);
 
     demuxer_.reset(new FFmpegDemuxer(media_task_runner_, data_source_.get(),
                                      encrypted_media_init_data_cb,
                                      media_tracks_updated_cb, media_log_));
 #else
     OnPipelineError(PipelineStatus::DEMUXER_ERROR_COULD_NOT_OPEN);
     return;
 #endif
   } else {
     DCHECK(!chunk_demuxer_);
@@ skipping 204 matching lines @@
            << ", Video: " << stats.video_memory_usage << ", DataSource: "
            << (data_source_ ? data_source_->GetMemoryUsage() : 0)
            << ", Demuxer: " << demuxer_memory_usage;
 
   const int64_t delta = current_memory_usage - last_reported_memory_usage_;
   last_reported_memory_usage_ = current_memory_usage;
   adjust_allocated_memory_cb_.Run(delta);
 }
 
 }  // namespace media