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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_FILTERS_VIDEO_RENDERER_BASE_H_ | 5 #ifndef MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_ |
6 #define MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_ | 6 #define MEDIA_FILTERS_VIDEO_RENDERER_BASE_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" |
| 11 #include "base/memory/scoped_vector.h" |
11 #include "base/memory/weak_ptr.h" | 12 #include "base/memory/weak_ptr.h" |
12 #include "base/synchronization/condition_variable.h" | 13 #include "base/synchronization/condition_variable.h" |
13 #include "base/synchronization/lock.h" | 14 #include "base/synchronization/lock.h" |
14 #include "base/threading/platform_thread.h" | 15 #include "base/threading/platform_thread.h" |
15 #include "media/base/decryptor.h" | 16 #include "media/base/decryptor.h" |
16 #include "media/base/demuxer_stream.h" | 17 #include "media/base/demuxer_stream.h" |
17 #include "media/base/pipeline_status.h" | 18 #include "media/base/pipeline_status.h" |
18 #include "media/base/video_decoder.h" | 19 #include "media/base/video_decoder.h" |
19 #include "media/base/video_frame.h" | 20 #include "media/base/video_frame.h" |
20 #include "media/base/video_renderer.h" | 21 #include "media/base/video_renderer.h" |
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36 class MEDIA_EXPORT VideoRendererBase | 37 class MEDIA_EXPORT VideoRendererBase |
37 : public VideoRenderer, | 38 : public VideoRenderer, |
38 public base::PlatformThread::Delegate { | 39 public base::PlatformThread::Delegate { |
39 public: | 40 public: |
40 typedef base::Callback<void(const scoped_refptr<VideoFrame>&)> PaintCB; | 41 typedef base::Callback<void(const scoped_refptr<VideoFrame>&)> PaintCB; |
41 typedef base::Callback<void(bool)> SetOpaqueCB; | 42 typedef base::Callback<void(bool)> SetOpaqueCB; |
42 | 43 |
43 // Maximum duration of the last frame. | 44 // Maximum duration of the last frame. |
44 static base::TimeDelta kMaxLastFrameDuration(); | 45 static base::TimeDelta kMaxLastFrameDuration(); |
45 | 46 |
| 47 // |decoders| contains the VideoDecoders to use when initializing. |
| 48 // |
46 // |paint_cb| is executed on the video frame timing thread whenever a new | 49 // |paint_cb| is executed on the video frame timing thread whenever a new |
47 // frame is available for painting. | 50 // frame is available for painting. |
48 // | 51 // |
49 // |set_opaque_cb| is executed when the renderer is initialized to inform | 52 // |set_opaque_cb| is executed when the renderer is initialized to inform |
50 // the player whether the decoder's output will be opaque or not. | 53 // the player whether the decoder's output will be opaque or not. |
51 // | 54 // |
52 // Implementors should avoid doing any sort of heavy work in this method and | 55 // Implementors should avoid doing any sort of heavy work in this method and |
53 // instead post a task to a common/worker thread to handle rendering. Slowing | 56 // instead post a task to a common/worker thread to handle rendering. Slowing |
54 // down the video thread may result in losing synchronization with audio. | 57 // down the video thread may result in losing synchronization with audio. |
55 // | 58 // |
56 // Setting |drop_frames_| to true causes the renderer to drop expired frames. | 59 // Setting |drop_frames_| to true causes the renderer to drop expired frames. |
57 VideoRendererBase(const scoped_refptr<base::MessageLoopProxy>& message_loop, | 60 VideoRendererBase(const scoped_refptr<base::MessageLoopProxy>& message_loop, |
| 61 ScopedVector<VideoDecoder> decoders, |
58 const SetDecryptorReadyCB& set_decryptor_ready_cb, | 62 const SetDecryptorReadyCB& set_decryptor_ready_cb, |
59 const PaintCB& paint_cb, | 63 const PaintCB& paint_cb, |
60 const SetOpaqueCB& set_opaque_cb, | 64 const SetOpaqueCB& set_opaque_cb, |
61 bool drop_frames); | 65 bool drop_frames); |
62 virtual ~VideoRendererBase(); | 66 virtual ~VideoRendererBase(); |
63 | 67 |
64 // VideoRenderer implementation. | 68 // VideoRenderer implementation. |
65 virtual void Initialize(const scoped_refptr<DemuxerStream>& stream, | 69 virtual void Initialize(const scoped_refptr<DemuxerStream>& stream, |
66 const VideoDecoderList& decoders, | |
67 const PipelineStatusCB& init_cb, | 70 const PipelineStatusCB& init_cb, |
68 const StatisticsCB& statistics_cb, | 71 const StatisticsCB& statistics_cb, |
69 const TimeCB& max_time_cb, | 72 const TimeCB& max_time_cb, |
70 const NaturalSizeChangedCB& size_changed_cb, | 73 const NaturalSizeChangedCB& size_changed_cb, |
71 const base::Closure& ended_cb, | 74 const base::Closure& ended_cb, |
72 const PipelineStatusCB& error_cb, | 75 const PipelineStatusCB& error_cb, |
73 const TimeDeltaCB& get_time_cb, | 76 const TimeDeltaCB& get_time_cb, |
74 const TimeDeltaCB& get_duration_cb) OVERRIDE; | 77 const TimeDeltaCB& get_duration_cb) OVERRIDE; |
75 virtual void Play(const base::Closure& callback) OVERRIDE; | 78 virtual void Play(const base::Closure& callback) OVERRIDE; |
76 virtual void Pause(const base::Closure& callback) OVERRIDE; | 79 virtual void Pause(const base::Closure& callback) OVERRIDE; |
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122 // changes. | 125 // changes. |
123 // | 126 // |
124 // A read is scheduled to replace the frame. | 127 // A read is scheduled to replace the frame. |
125 void PaintNextReadyFrame_Locked(); | 128 void PaintNextReadyFrame_Locked(); |
126 | 129 |
127 // Drops the next frame from |ready_frames_| and runs |statistics_cb_|. | 130 // Drops the next frame from |ready_frames_| and runs |statistics_cb_|. |
128 // | 131 // |
129 // A read is scheduled to replace the frame. | 132 // A read is scheduled to replace the frame. |
130 void DropNextReadyFrame_Locked(); | 133 void DropNextReadyFrame_Locked(); |
131 | 134 |
| 135 void ResetDecoder(); |
| 136 void StopDecoder(const base::Closure& callback); |
| 137 |
132 void TransitionToPrerolled_Locked(); | 138 void TransitionToPrerolled_Locked(); |
133 | 139 |
134 scoped_refptr<base::MessageLoopProxy> message_loop_; | 140 scoped_refptr<base::MessageLoopProxy> message_loop_; |
135 base::WeakPtrFactory<VideoRendererBase> weak_factory_; | 141 base::WeakPtrFactory<VideoRendererBase> weak_factory_; |
136 base::WeakPtr<VideoRendererBase> weak_this_; | 142 base::WeakPtr<VideoRendererBase> weak_this_; |
137 | 143 |
| 144 scoped_ptr<VideoDecoderSelector> decoder_selector_; |
| 145 |
138 // Used for accessing data members. | 146 // Used for accessing data members. |
139 base::Lock lock_; | 147 base::Lock lock_; |
140 | 148 |
141 // Provides video frames to VideoRendererBase. | 149 // Provides video frames to VideoRendererBase. |
142 scoped_refptr<VideoFrameStream> video_frame_stream_; | 150 scoped_refptr<VideoFrameStream> video_frame_stream_; |
143 | 151 |
144 // Queue of incoming frames yet to be painted. | 152 // Queue of incoming frames yet to be painted. |
145 typedef std::deque<scoped_refptr<VideoFrame> > VideoFrameQueue; | 153 typedef std::deque<scoped_refptr<VideoFrame> > VideoFrameQueue; |
146 VideoFrameQueue ready_frames_; | 154 VideoFrameQueue ready_frames_; |
147 | 155 |
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239 // either for calling |paint_cb_| or for dropping. Set to kNoTimestamp() | 247 // either for calling |paint_cb_| or for dropping. Set to kNoTimestamp() |
240 // during flushing. | 248 // during flushing. |
241 base::TimeDelta last_timestamp_; | 249 base::TimeDelta last_timestamp_; |
242 | 250 |
243 DISALLOW_COPY_AND_ASSIGN(VideoRendererBase); | 251 DISALLOW_COPY_AND_ASSIGN(VideoRendererBase); |
244 }; | 252 }; |
245 | 253 |
246 } // namespace media | 254 } // namespace media |
247 | 255 |
248 #endif // MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_ | 256 #endif // MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_ |
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