| // 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. |
| |
| #ifndef CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_ |
| #define CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_ |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/synchronization/lock.h" |
| #include "base/threading/thread_checker.h" |
| #include "cc/layers/video_frame_provider.h" |
| #include "media/filters/skcanvas_video_renderer.h" |
| #include "skia/ext/platform_canvas.h" |
| #include "third_party/WebKit/public/platform/WebMediaPlayer.h" |
| #include "url/gurl.h" |
| |
| namespace blink { |
| class WebFrame; |
| class WebMediaPlayerClient; |
| } |
| |
| namespace media { |
| class MediaLog; |
| } |
| |
| |
| namespace content { |
| class MediaStreamAudioRenderer; |
| class MediaStreamRendererFactory; |
| class VideoFrameProvider; |
| class WebLayerImpl; |
| class WebMediaPlayerDelegate; |
| |
| // WebMediaPlayerMS delegates calls from WebCore::MediaPlayerPrivate to |
| // Chrome's media player when "src" is from media stream. |
| // |
| // WebMediaPlayerMS works with multiple objects, the most important ones are: |
| // |
| // VideoFrameProvider |
| // provides video frames for rendering. |
| // |
| // TODO(wjia): add AudioPlayer. |
| // AudioPlayer |
| // plays audio streams. |
| // |
| // blink::WebMediaPlayerClient |
| // WebKit client of this media player object. |
| class WebMediaPlayerMS |
| : public blink::WebMediaPlayer, |
| public cc::VideoFrameProvider, |
| public base::SupportsWeakPtr<WebMediaPlayerMS> { |
| public: |
| // Construct a WebMediaPlayerMS with reference to the client, and |
| // a MediaStreamClient which provides VideoFrameProvider. |
| WebMediaPlayerMS(blink::WebFrame* frame, |
| blink::WebMediaPlayerClient* client, |
| base::WeakPtr<WebMediaPlayerDelegate> delegate, |
| media::MediaLog* media_log, |
| scoped_ptr<MediaStreamRendererFactory> factory); |
| virtual ~WebMediaPlayerMS(); |
| |
| virtual void load(LoadType load_type, |
| const blink::WebURL& url, |
| CORSMode cors_mode); |
| |
| // Playback controls. |
| virtual void play(); |
| virtual void pause(); |
| virtual bool supportsSave() const; |
| virtual void seek(double seconds); |
| virtual void setRate(double rate); |
| virtual void setVolume(double volume); |
| virtual void setPreload(blink::WebMediaPlayer::Preload preload); |
| virtual blink::WebTimeRanges buffered() const; |
| virtual double maxTimeSeekable() const; |
| |
| // Methods for painting. |
| virtual void paint(blink::WebCanvas* canvas, |
| const blink::WebRect& rect, |
| unsigned char alpha); |
| |
| // True if the loaded media has a playable video/audio track. |
| virtual bool hasVideo() const; |
| virtual bool hasAudio() const; |
| |
| // Dimensions of the video. |
| virtual blink::WebSize naturalSize() const; |
| |
| // Getters of playback state. |
| virtual bool paused() const; |
| virtual bool seeking() const; |
| virtual double duration() const; |
| virtual double currentTime() const; |
| |
| // Internal states of loading and network. |
| virtual blink::WebMediaPlayer::NetworkState networkState() const; |
| virtual blink::WebMediaPlayer::ReadyState readyState() const; |
| |
| virtual bool didLoadingProgress(); |
| |
| virtual bool hasSingleSecurityOrigin() const; |
| virtual bool didPassCORSAccessCheck() const; |
| |
| virtual double mediaTimeForTimeValue(double timeValue) const; |
| |
| virtual unsigned decodedFrameCount() const; |
| virtual unsigned droppedFrameCount() const; |
| virtual unsigned audioDecodedByteCount() const; |
| virtual unsigned videoDecodedByteCount() const; |
| |
| // VideoFrameProvider implementation. |
| virtual void SetVideoFrameProviderClient( |
| cc::VideoFrameProvider::Client* client) OVERRIDE; |
| virtual scoped_refptr<media::VideoFrame> GetCurrentFrame() OVERRIDE; |
| virtual void PutCurrentFrame(const scoped_refptr<media::VideoFrame>& frame) |
| OVERRIDE; |
| |
| private: |
| // The callback for VideoFrameProvider to signal a new frame is available. |
| void OnFrameAvailable(const scoped_refptr<media::VideoFrame>& frame); |
| // Need repaint due to state change. |
| void RepaintInternal(); |
| |
| // The callback for source to report error. |
| void OnSourceError(); |
| |
| // Helpers that set the network/ready state and notifies the client if |
| // they've changed. |
| void SetNetworkState(blink::WebMediaPlayer::NetworkState state); |
| void SetReadyState(blink::WebMediaPlayer::ReadyState state); |
| |
| // Getter method to |client_|. |
| blink::WebMediaPlayerClient* GetClient(); |
| |
| blink::WebFrame* frame_; |
| |
| blink::WebMediaPlayer::NetworkState network_state_; |
| blink::WebMediaPlayer::ReadyState ready_state_; |
| |
| blink::WebTimeRanges buffered_; |
| |
| // Used for DCHECKs to ensure methods calls executed in the correct thread. |
| base::ThreadChecker thread_checker_; |
| |
| blink::WebMediaPlayerClient* client_; |
| |
| base::WeakPtr<WebMediaPlayerDelegate> delegate_; |
| |
| // Specify content:: to disambiguate from cc::. |
| scoped_refptr<content::VideoFrameProvider> video_frame_provider_; |
| bool paused_; |
| |
| // |current_frame_| is updated only on main thread. The object it holds |
| // can be freed on the compositor thread if it is the last to hold a |
| // reference but media::VideoFrame is a thread-safe ref-pointer. It is |
| // however read on the compositing thread so locking is required around all |
| // modifications on the main thread, and all reads on the compositing thread. |
| scoped_refptr<media::VideoFrame> current_frame_; |
| // |current_frame_used_| is updated on both main and compositing thread. |
| // It's used to track whether |current_frame_| was painted for detecting |
| // when to increase |dropped_frame_count_|. |
| bool current_frame_used_; |
| // |current_frame_lock_| protects |current_frame_used_| and |current_frame_|. |
| base::Lock current_frame_lock_; |
| bool pending_repaint_; |
| |
| scoped_ptr<WebLayerImpl> video_weblayer_; |
| |
| // A pointer back to the compositor to inform it about state changes. This is |
| // not NULL while the compositor is actively using this webmediaplayer. |
| cc::VideoFrameProvider::Client* video_frame_provider_client_; |
| |
| bool received_first_frame_; |
| base::TimeDelta current_time_; |
| unsigned total_frame_count_; |
| unsigned dropped_frame_count_; |
| media::SkCanvasVideoRenderer video_renderer_; |
| |
| scoped_refptr<MediaStreamAudioRenderer> audio_renderer_; |
| |
| scoped_refptr<media::MediaLog> media_log_; |
| |
| scoped_ptr<MediaStreamRendererFactory> renderer_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerMS); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_ |