media: Make GpuMemoryBuffers VideoFrame copies asynchronous.

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>
 
@@ skipping 98 matching lines @@
     base::WeakPtr<WebMediaPlayerDelegate> delegate,
     scoped_ptr<RendererFactory> renderer_factory,
     CdmFactory* cdm_factory,
     const WebMediaPlayerParams& params)
     : frame_(frame),
       network_state_(WebMediaPlayer::NetworkStateEmpty),
       ready_state_(WebMediaPlayer::ReadyStateHaveNothing),
       preload_(BufferedDataSource::AUTO),
       main_task_runner_(base::ThreadTaskRunnerHandle::Get()),
       media_task_runner_(params.media_task_runner()),
+      worker_task_runner_(params.worker_task_runner()),
       media_log_(params.media_log()),
       pipeline_(media_task_runner_, media_log_.get()),
       load_type_(LoadTypeURL),
       opaque_(false),
       playback_rate_(0.0),
       paused_(true),
       seeking_(false),
       ended_(false),
       pending_seek_(false),
       should_notify_time_changed_(false),
@@ skipping 805 matching lines @@
     chunk_demuxer_ = new ChunkDemuxer(
         BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnDemuxerOpened),
         encrypted_media_init_data_cb, media_log_, true);
     demuxer_.reset(chunk_demuxer_);
   }
 
   // ... and we're ready to go!
   seeking_ = true;
 
   pipeline_.Start(
-      demuxer_.get(),
-      renderer_factory_->CreateRenderer(
-          media_task_runner_, audio_source_provider_.get(), compositor_),
+      demuxer_.get(), renderer_factory_->CreateRenderer(
+                          media_task_runner_, worker_task_runner_,
+                          audio_source_provider_.get(), compositor_),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineEnded),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineError),
       BIND_TO_RENDER_LOOP1(&WebMediaPlayerImpl::OnPipelineSeeked, false),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineMetadata),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineBufferingStateChanged),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnDurationChanged),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnAddTextTrack),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnWaitingForDecryptionKey));
 }
 
@@ skipping 95 matching lines @@
 
   // pause() may be called after playback has ended and the HTMLMediaElement
   // requires that currentTime() == duration() after ending.  We want to ensure
   // |paused_time_| matches currentTime() in this case or a future seek() may
   // incorrectly discard what it thinks is a seek to the existing time.
   paused_time_ =
       ended_ ? pipeline_.GetMediaDuration() : pipeline_.GetMediaTime();
 }
 
 }  // namespace media