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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_IMPL_H_ | |
| 6 #define CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_IMPL_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/basictypes.h" | |
| 12 #include "base/memory/ref_counted.h" | |
| 13 #include "base/memory/scoped_ptr.h" | |
| 14 #include "base/memory/weak_ptr.h" | |
| 15 #include "base/threading/thread.h" | |
| 16 #include "content/renderer/media/buffered_data_source_host_impl.h" | |
| 17 #include "content/renderer/media/video_frame_compositor.h" | |
| 18 #include "media/base/audio_renderer_sink.h" | |
| 19 // TODO(xhwang): Remove when we remove prefixed EME implementation. | |
| 20 #include "media/base/media_keys.h" | |
| 21 #include "media/base/pipeline.h" | |
| 22 #include "media/base/text_track.h" | |
| 23 #include "media/filters/skcanvas_video_renderer.h" | |
| 24 #include "skia/ext/platform_canvas.h" | |
| 25 #include "third_party/WebKit/public/platform/WebAudioSourceProvider.h" | |
| 26 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h" | |
| 27 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h" | |
| 28 #include "third_party/WebKit/public/platform/WebMediaPlayer.h" | |
| 29 #include "third_party/WebKit/public/platform/WebMediaPlayerClient.h" | |
| 30 #include "url/gurl.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 class WebLocalFrame; | |
| 34 } | |
| 35 | |
| 36 namespace base { | |
| 37 class SingleThreadTaskRunner; | |
| 38 } | |
| 39 | |
| 40 namespace cc_blink { | |
| 41 class WebLayerImpl; | |
| 42 } | |
| 43 | |
| 44 namespace media { | |
| 45 class AudioHardwareConfig; | |
| 46 class ChunkDemuxer; | |
| 47 class GpuVideoAcceleratorFactories; | |
| 48 class MediaLog; | |
| 49 } | |
| 50 | |
| 51 | |
| 52 namespace content { | |
| 53 class BufferedDataSource; | |
| 54 class EncryptedMediaPlayerSupport; | |
| 55 class VideoFrameCompositor; | |
| 56 class WebAudioSourceProviderImpl; | |
| 57 class WebMediaPlayerDelegate; | |
| 58 class WebMediaPlayerParams; | |
| 59 class WebTextTrackImpl; | |
| 60 | |
| 61 // The canonical implementation of blink::WebMediaPlayer that's backed by | |
| 62 // media::Pipeline. Handles normal resource loading, Media Source, and | |
| 63 // Encrypted Media. | |
| 64 class WebMediaPlayerImpl | |
| 65 : public blink::WebMediaPlayer, | |
| 66 public base::SupportsWeakPtr<WebMediaPlayerImpl> { | |
| 67 public: | |
| 68 // Constructs a WebMediaPlayer implementation using Chromium's media stack. | |
| 69 // |delegate| may be null. | |
| 70 WebMediaPlayerImpl(blink::WebLocalFrame* frame, | |
| 71 blink::WebMediaPlayerClient* client, | |
| 72 base::WeakPtr<WebMediaPlayerDelegate> delegate, | |
| 73 const WebMediaPlayerParams& params); | |
| 74 virtual ~WebMediaPlayerImpl(); | |
| 75 | |
| 76 virtual void load(LoadType load_type, | |
| 77 const blink::WebURL& url, | |
| 78 CORSMode cors_mode); | |
| 79 | |
| 80 // Playback controls. | |
| 81 virtual void play(); | |
| 82 virtual void pause(); | |
| 83 virtual bool supportsSave() const; | |
| 84 virtual void seek(double seconds); | |
| 85 virtual void setRate(double rate); | |
| 86 virtual void setVolume(double volume); | |
| 87 virtual void setPreload(blink::WebMediaPlayer::Preload preload); | |
| 88 virtual blink::WebTimeRanges buffered() const; | |
| 89 virtual double maxTimeSeekable() const; | |
| 90 | |
| 91 // Methods for painting. | |
| 92 virtual void paint(blink::WebCanvas* canvas, | |
| 93 const blink::WebRect& rect, | |
| 94 unsigned char alpha, | |
| 95 SkXfermode::Mode mode); | |
| 96 // TODO(dshwang): remove it because above method replaces. crbug.com/401027 | |
| 97 virtual void paint(blink::WebCanvas* canvas, | |
| 98 const blink::WebRect& rect, | |
| 99 unsigned char alpha); | |
| 100 | |
| 101 // True if the loaded media has a playable video/audio track. | |
| 102 virtual bool hasVideo() const; | |
| 103 virtual bool hasAudio() const; | |
| 104 | |
| 105 // Dimensions of the video. | |
| 106 virtual blink::WebSize naturalSize() const; | |
| 107 | |
| 108 // Getters of playback state. | |
| 109 virtual bool paused() const; | |
| 110 virtual bool seeking() const; | |
| 111 virtual double duration() const; | |
| 112 virtual double timelineOffset() const; | |
| 113 virtual double currentTime() const; | |
| 114 | |
| 115 // Internal states of loading and network. | |
| 116 // TODO(hclam): Ask the pipeline about the state rather than having reading | |
| 117 // them from members which would cause race conditions. | |
| 118 virtual blink::WebMediaPlayer::NetworkState networkState() const; | |
| 119 virtual blink::WebMediaPlayer::ReadyState readyState() const; | |
| 120 | |
| 121 virtual bool didLoadingProgress(); | |
| 122 | |
| 123 virtual bool hasSingleSecurityOrigin() const; | |
| 124 virtual bool didPassCORSAccessCheck() const; | |
| 125 | |
| 126 virtual double mediaTimeForTimeValue(double timeValue) const; | |
| 127 | |
| 128 virtual unsigned decodedFrameCount() const; | |
| 129 virtual unsigned droppedFrameCount() const; | |
| 130 virtual unsigned audioDecodedByteCount() const; | |
| 131 virtual unsigned videoDecodedByteCount() const; | |
| 132 | |
| 133 virtual bool copyVideoTextureToPlatformTexture( | |
| 134 blink::WebGraphicsContext3D* web_graphics_context, | |
| 135 unsigned int texture, | |
| 136 unsigned int level, | |
| 137 unsigned int internal_format, | |
| 138 unsigned int type, | |
| 139 bool premultiply_alpha, | |
| 140 bool flip_y); | |
| 141 | |
| 142 virtual blink::WebAudioSourceProvider* audioSourceProvider(); | |
| 143 | |
| 144 virtual MediaKeyException generateKeyRequest( | |
| 145 const blink::WebString& key_system, | |
| 146 const unsigned char* init_data, | |
| 147 unsigned init_data_length); | |
| 148 | |
| 149 virtual MediaKeyException addKey(const blink::WebString& key_system, | |
| 150 const unsigned char* key, | |
| 151 unsigned key_length, | |
| 152 const unsigned char* init_data, | |
| 153 unsigned init_data_length, | |
| 154 const blink::WebString& session_id); | |
| 155 | |
| 156 virtual MediaKeyException cancelKeyRequest( | |
| 157 const blink::WebString& key_system, | |
| 158 const blink::WebString& session_id); | |
| 159 | |
| 160 // TODO(jrummell): Remove this method once Blink updated to use the other | |
| 161 // two methods. | |
| 162 virtual void setContentDecryptionModule( | |
| 163 blink::WebContentDecryptionModule* cdm); | |
| 164 virtual void setContentDecryptionModule( | |
| 165 blink::WebContentDecryptionModule* cdm, | |
| 166 blink::WebContentDecryptionModuleResult result); | |
| 167 virtual void setContentDecryptionModuleSync( | |
| 168 blink::WebContentDecryptionModule* cdm); | |
| 169 | |
| 170 void OnPipelineSeeked(bool time_changed, media::PipelineStatus status); | |
| 171 void OnPipelineEnded(); | |
| 172 void OnPipelineError(media::PipelineStatus error); | |
| 173 void OnPipelineMetadata(media::PipelineMetadata metadata); | |
| 174 void OnPipelineBufferingStateChanged(media::BufferingState buffering_state); | |
| 175 void OnDemuxerOpened(); | |
| 176 void OnAddTextTrack(const media::TextTrackConfig& config, | |
| 177 const media::AddTextTrackDoneCB& done_cb); | |
| 178 | |
| 179 private: | |
| 180 // Called after |defer_load_cb_| has decided to allow the load. If | |
| 181 // |defer_load_cb_| is null this is called immediately. | |
| 182 void DoLoad(LoadType load_type, | |
| 183 const blink::WebURL& url, | |
| 184 CORSMode cors_mode); | |
| 185 | |
| 186 // Called after asynchronous initialization of a data source completed. | |
| 187 void DataSourceInitialized(bool success); | |
| 188 | |
| 189 // Called when the data source is downloading or paused. | |
| 190 void NotifyDownloading(bool is_downloading); | |
| 191 | |
| 192 // Creates a media::Renderer that will be used by the |pipeline_|. | |
| 193 scoped_ptr<media::Renderer> CreateRenderer(); | |
| 194 | |
| 195 // Finishes starting the pipeline due to a call to load(). | |
| 196 void StartPipeline(); | |
| 197 | |
| 198 // Helpers that set the network/ready state and notifies the client if | |
| 199 // they've changed. | |
| 200 void SetNetworkState(blink::WebMediaPlayer::NetworkState state); | |
| 201 void SetReadyState(blink::WebMediaPlayer::ReadyState state); | |
| 202 | |
| 203 // Gets the duration value reported by the pipeline. | |
| 204 double GetPipelineDuration() const; | |
| 205 | |
| 206 // Callbacks from |pipeline_| that are forwarded to |client_|. | |
| 207 void OnDurationChanged(); | |
| 208 void OnNaturalSizeChanged(gfx::Size size); | |
| 209 void OnOpacityChanged(bool opaque); | |
| 210 | |
| 211 // Called by VideoRendererImpl on its internal thread with the new frame to be | |
| 212 // painted. | |
| 213 void FrameReady(const scoped_refptr<media::VideoFrame>& frame); | |
| 214 | |
| 215 // Returns the current video frame from |compositor_|. Blocks until the | |
| 216 // compositor can return the frame. | |
| 217 scoped_refptr<media::VideoFrame> GetCurrentFrameFromCompositor(); | |
| 218 | |
| 219 blink::WebLocalFrame* frame_; | |
| 220 | |
| 221 // TODO(hclam): get rid of these members and read from the pipeline directly. | |
| 222 blink::WebMediaPlayer::NetworkState network_state_; | |
| 223 blink::WebMediaPlayer::ReadyState ready_state_; | |
| 224 | |
| 225 // Preload state for when |data_source_| is created after setPreload(). | |
| 226 BufferedDataSource::Preload preload_; | |
| 227 | |
| 228 // Task runner for posting tasks on Chrome's main thread. Also used | |
| 229 // for DCHECKs so methods calls won't execute in the wrong thread. | |
| 230 const scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_; | |
| 231 | |
| 232 scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_; | |
| 233 scoped_refptr<media::MediaLog> media_log_; | |
| 234 media::Pipeline pipeline_; | |
| 235 | |
| 236 // The LoadType passed in the |load_type| parameter of the load() call. | |
| 237 LoadType load_type_; | |
| 238 | |
| 239 // Cache of metadata for answering hasAudio(), hasVideo(), and naturalSize(). | |
| 240 media::PipelineMetadata pipeline_metadata_; | |
| 241 | |
| 242 // Whether the video is known to be opaque or not. | |
| 243 bool opaque_; | |
| 244 | |
| 245 // Playback state. | |
| 246 // | |
| 247 // TODO(scherkus): we have these because Pipeline favours the simplicity of a | |
| 248 // single "playback rate" over worrying about paused/stopped etc... It forces | |
| 249 // all clients to manage the pause+playback rate externally, but is that | |
| 250 // really a bad thing? | |
| 251 // | |
| 252 // TODO(scherkus): since SetPlaybackRate(0) is asynchronous and we don't want | |
| 253 // to hang the render thread during pause(), we record the time at the same | |
| 254 // time we pause and then return that value in currentTime(). Otherwise our | |
| 255 // clock can creep forward a little bit while the asynchronous | |
| 256 // SetPlaybackRate(0) is being executed. | |
| 257 bool paused_; | |
| 258 bool seeking_; | |
| 259 double playback_rate_; | |
| 260 base::TimeDelta paused_time_; | |
| 261 | |
| 262 // TODO(scherkus): Replace with an explicit ended signal to HTMLMediaElement, | |
| 263 // see http://crbug.com/409280 | |
| 264 bool ended_; | |
| 265 | |
| 266 // Seek gets pending if another seek is in progress. Only last pending seek | |
| 267 // will have effect. | |
| 268 bool pending_seek_; | |
| 269 double pending_seek_seconds_; | |
| 270 | |
| 271 // Tracks whether to issue time changed notifications during buffering state | |
| 272 // changes. | |
| 273 bool should_notify_time_changed_; | |
| 274 | |
| 275 blink::WebMediaPlayerClient* client_; | |
| 276 | |
| 277 base::WeakPtr<WebMediaPlayerDelegate> delegate_; | |
| 278 | |
| 279 base::Callback<void(const base::Closure&)> defer_load_cb_; | |
| 280 | |
| 281 // Factories for supporting video accelerators. May be null. | |
| 282 scoped_refptr<media::GpuVideoAcceleratorFactories> gpu_factories_; | |
| 283 | |
| 284 // Routes audio playback to either AudioRendererSink or WebAudio. | |
| 285 scoped_refptr<WebAudioSourceProviderImpl> audio_source_provider_; | |
| 286 | |
| 287 bool supports_save_; | |
| 288 | |
| 289 // These two are mutually exclusive: | |
| 290 // |data_source_| is used for regular resource loads. | |
| 291 // |chunk_demuxer_| is used for Media Source resource loads. | |
| 292 // | |
| 293 // |demuxer_| will contain the appropriate demuxer based on which resource | |
| 294 // load strategy we're using. | |
| 295 scoped_ptr<BufferedDataSource> data_source_; | |
| 296 scoped_ptr<media::Demuxer> demuxer_; | |
| 297 media::ChunkDemuxer* chunk_demuxer_; | |
| 298 | |
| 299 BufferedDataSourceHostImpl buffered_data_source_host_; | |
| 300 | |
| 301 // Video rendering members. | |
| 302 scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_; | |
| 303 VideoFrameCompositor* compositor_; // Deleted on |compositor_task_runner_|. | |
| 304 media::SkCanvasVideoRenderer skcanvas_video_renderer_; | |
| 305 | |
| 306 // The compositor layer for displaying the video content when using composited | |
| 307 // playback. | |
| 308 scoped_ptr<cc_blink::WebLayerImpl> video_weblayer_; | |
| 309 | |
| 310 // Text track objects get a unique index value when they're created. | |
| 311 int text_track_index_; | |
| 312 | |
| 313 scoped_ptr<EncryptedMediaPlayerSupport> encrypted_media_support_; | |
| 314 | |
| 315 const media::AudioHardwareConfig& audio_hardware_config_; | |
| 316 | |
| 317 DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl); | |
| 318 }; | |
| 319 | |
| 320 } // namespace content | |
| 321 | |
| 322 #endif // CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_IMPL_H_ | |
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Chromium Code Reviews
Issue 495353003:
Move WebMediaPlayerImpl and its dependencies to media/blink. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master