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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_ | 5 #ifndef MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_ |
6 #define MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_ | 6 #define MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 | 9 |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
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45 public base::PlatformThread::Delegate { | 45 public base::PlatformThread::Delegate { |
46 public: | 46 public: |
47 // |decoders| contains the VideoDecoders to use when initializing. | 47 // |decoders| contains the VideoDecoders to use when initializing. |
48 // | 48 // |
49 // Implementors should avoid doing any sort of heavy work in this method and | 49 // Implementors should avoid doing any sort of heavy work in this method and |
50 // instead post a task to a common/worker thread to handle rendering. Slowing | 50 // instead post a task to a common/worker thread to handle rendering. Slowing |
51 // down the video thread may result in losing synchronization with audio. | 51 // down the video thread may result in losing synchronization with audio. |
52 // | 52 // |
53 // Setting |drop_frames_| to true causes the renderer to drop expired frames. | 53 // Setting |drop_frames_| to true causes the renderer to drop expired frames. |
54 VideoRendererImpl( | 54 VideoRendererImpl( |
55 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, | 55 const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner, |
| 56 const scoped_refptr<base::TaskRunner>& worker_task_runner, |
56 VideoRendererSink* sink, | 57 VideoRendererSink* sink, |
57 ScopedVector<VideoDecoder> decoders, | 58 ScopedVector<VideoDecoder> decoders, |
58 bool drop_frames, | 59 bool drop_frames, |
59 const scoped_refptr<GpuVideoAcceleratorFactories>& gpu_factories, | 60 const scoped_refptr<GpuVideoAcceleratorFactories>& gpu_factories, |
60 const scoped_refptr<MediaLog>& media_log); | 61 const scoped_refptr<MediaLog>& media_log); |
61 ~VideoRendererImpl() override; | 62 ~VideoRendererImpl() override; |
62 | 63 |
63 // VideoRenderer implementation. | 64 // VideoRenderer implementation. |
64 void Initialize(DemuxerStream* stream, | 65 void Initialize(DemuxerStream* stream, |
65 const PipelineStatusCB& init_cb, | 66 const PipelineStatusCB& init_cb, |
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90 } | 91 } |
91 | 92 |
92 private: | 93 private: |
93 // Creates a dedicated |thread_| for video rendering. | 94 // Creates a dedicated |thread_| for video rendering. |
94 void CreateVideoThread(); | 95 void CreateVideoThread(); |
95 | 96 |
96 // Callback for |video_frame_stream_| initialization. | 97 // Callback for |video_frame_stream_| initialization. |
97 void OnVideoFrameStreamInitialized(bool success); | 98 void OnVideoFrameStreamInitialized(bool success); |
98 | 99 |
99 // Callback for |video_frame_stream_| to deliver decoded video frames and | 100 // Callback for |video_frame_stream_| to deliver decoded video frames and |
| 101 // report video decoding status. If a frame is available the planes will be |
| 102 // copied asynchronously and FrameReady will be called once finished copying. |
| 103 void FrameReadyForCopyingToGpuMemoryBuffers( |
| 104 VideoFrameStream::Status status, |
| 105 const scoped_refptr<VideoFrame>& frame); |
| 106 |
| 107 // Callback for |video_frame_stream_| to deliver decoded video frames and |
100 // report video decoding status. | 108 // report video decoding status. |
101 void FrameReady(VideoFrameStream::Status status, | 109 void FrameReady(VideoFrameStream::Status status, |
102 const scoped_refptr<VideoFrame>& frame); | 110 const scoped_refptr<VideoFrame>& frame); |
103 | 111 |
104 // Helper method for adding a frame to |ready_frames_|. | 112 // Helper method for adding a frame to |ready_frames_|. |
105 void AddReadyFrame_Locked(const scoped_refptr<VideoFrame>& frame); | 113 void AddReadyFrame_Locked(const scoped_refptr<VideoFrame>& frame); |
106 | 114 |
107 // Helper method that schedules an asynchronous read from the | 115 // Helper method that schedules an asynchronous read from the |
108 // |video_frame_stream_| as long as there isn't a pending read and we have | 116 // |video_frame_stream_| as long as there isn't a pending read and we have |
109 // capacity. | 117 // capacity. |
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293 | 301 |
294 // NOTE: Weak pointers must be invalidated before all other member variables. | 302 // NOTE: Weak pointers must be invalidated before all other member variables. |
295 base::WeakPtrFactory<VideoRendererImpl> weak_factory_; | 303 base::WeakPtrFactory<VideoRendererImpl> weak_factory_; |
296 | 304 |
297 DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl); | 305 DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl); |
298 }; | 306 }; |
299 | 307 |
300 } // namespace media | 308 } // namespace media |
301 | 309 |
302 #endif // MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_ | 310 #endif // MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_ |
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