Hook WebMediaPlayerImpl up to Mojo's HTMLDocumentView.

mojo/services/html_viewer/webmediaplayer_factory.cc

+// Copyright 2014 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 "mojo/services/html_viewer/webmediaplayer_factory.h"
+
+#include "base/threading/thread.h"
+#include "media/audio/audio_manager.h"
+#include "media/audio/audio_manager_base.h"
+#include "media/audio/null_audio_sink.h"
+#include "media/base/audio_hardware_config.h"
+#include "media/base/media.h"
+#include "media/base/media_log.h"
+#include "media/blink/null_encrypted_media_player_support.h"
+#include "media/blink/webmediaplayer_impl.h"
+#include "media/blink/webmediaplayer_params.h"
+#include "media/filters/gpu_video_accelerator_factories.h"
+
+namespace mojo {
+
+WebMediaPlayerFactory::WebMediaPlayerFactory() {
+  if (!media::IsMediaLibraryInitialized())
+    media::InitializeMediaLibraryForTesting();

[scherkus (not reviewing), 2014/09/12 00:17:52]

sanity check: do you want to CHECK()?

[acolwell GONE FROM CHROMIUM, 2014/09/12 16:46:02]

Done.

+
+  audio_manager_.reset(media::AudioManager::Create(&fake_audio_log_factory_));
+
+  audio_hardware_config_.reset(new media::AudioHardwareConfig(
+      audio_manager_->GetInputStreamParameters(
+          media::AudioManagerBase::kDefaultDeviceId),
+      audio_manager_->GetDefaultOutputStreamParameters()));
+}
+
+WebMediaPlayerFactory::~WebMediaPlayerFactory() {
+}
+
+blink::WebMediaPlayer* WebMediaPlayerFactory::CreateMediaPlayer(
+    blink::WebLocalFrame* frame,
+    const blink::WebURL& url,
+    blink::WebMediaPlayerClient* client) {
+
+  media::WebMediaPlayerParams params(
+      media::WebMediaPlayerParams::DeferLoadCB(),
+      CreateAudioRendererSink(),
+      GetAudioHardwareConfig(),
+      new media::MediaLog(),
+      scoped_refptr<media::GpuVideoAcceleratorFactories>(),
+      GetMediaThreadTaskRunner(),
+      scoped_refptr<base::SingleThreadTaskRunner>(), // compositor_message_loop
+      base::Bind(&media::NullEncryptedMediaPlayerSupport::Create));
+  base::WeakPtr<media::WebMediaPlayerDelegate> delegate;
+
+  return new media::WebMediaPlayerImpl(frame, client, delegate, params);
+}
+
+const media::AudioHardwareConfig&
+WebMediaPlayerFactory::GetAudioHardwareConfig() {
+  return *audio_hardware_config_;
+}
+
+scoped_refptr<media::AudioRendererSink>
+WebMediaPlayerFactory::CreateAudioRendererSink() {
+  // TODO(acolwell): Replace this with an AudioRendererSink implementation
+  // that actually talks to the audio device or an audio mojo service.
+  return new media::NullAudioSink(GetMediaThreadTaskRunner());
+}
+
+scoped_refptr<base::SingleThreadTaskRunner>
+WebMediaPlayerFactory::GetMediaThreadTaskRunner() {
+  if (!media_thread_) {
+    media_thread_.reset(new base::Thread("Media"));
+    media_thread_->Start();
+  }
+  return media_thread_->message_loop_proxy();
+}
+
+}  // namespace mojo