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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" |
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46 // frame is available for painting. | 46 // frame is available for painting. |
47 // | 47 // |
48 // |set_opaque_cb| is executed when the renderer is initialized to inform | 48 // |set_opaque_cb| is executed when the renderer is initialized to inform |
49 // the player whether the decoder's output will be opaque or not. | 49 // the player whether the decoder's output will be opaque or not. |
50 // | 50 // |
51 // Implementors should avoid doing any sort of heavy work in this method and | 51 // Implementors should avoid doing any sort of heavy work in this method and |
52 // instead post a task to a common/worker thread to handle rendering. Slowing | 52 // instead post a task to a common/worker thread to handle rendering. Slowing |
53 // down the video thread may result in losing synchronization with audio. | 53 // down the video thread may result in losing synchronization with audio. |
54 // | 54 // |
55 // Setting |drop_frames_| to true causes the renderer to drop expired frames. | 55 // Setting |drop_frames_| to true causes the renderer to drop expired frames. |
56 // | |
57 // TODO(scherkus): pass the VideoFrame* to this callback and remove | |
58 // Get/PutCurrentFrame() http://crbug.com/108435 | |
59 VideoRendererBase(const scoped_refptr<base::MessageLoopProxy>& message_loop, | 56 VideoRendererBase(const scoped_refptr<base::MessageLoopProxy>& message_loop, |
60 const SetDecryptorReadyCB& set_decryptor_ready_cb, | 57 const SetDecryptorReadyCB& set_decryptor_ready_cb, |
61 const PaintCB& paint_cb, | 58 const PaintCB& paint_cb, |
62 const SetOpaqueCB& set_opaque_cb, | 59 const SetOpaqueCB& set_opaque_cb, |
63 bool drop_frames); | 60 bool drop_frames); |
64 virtual ~VideoRendererBase(); | 61 virtual ~VideoRendererBase(); |
65 | 62 |
66 // VideoRenderer implementation. | 63 // VideoRenderer implementation. |
67 virtual void Initialize(const scoped_refptr<DemuxerStream>& stream, | 64 virtual void Initialize(const scoped_refptr<DemuxerStream>& stream, |
68 const VideoDecoderList& decoders, | 65 const VideoDecoderList& decoders, |
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264 // either for calling |paint_cb_| or for dropping. Set to kNoTimestamp() | 261 // either for calling |paint_cb_| or for dropping. Set to kNoTimestamp() |
265 // during flushing. | 262 // during flushing. |
266 base::TimeDelta last_timestamp_; | 263 base::TimeDelta last_timestamp_; |
267 | 264 |
268 DISALLOW_COPY_AND_ASSIGN(VideoRendererBase); | 265 DISALLOW_COPY_AND_ASSIGN(VideoRendererBase); |
269 }; | 266 }; |
270 | 267 |
271 } // namespace media | 268 } // namespace media |
272 | 269 |
273 #endif // MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_ | 270 #endif // MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_ |
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