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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_VPX_VIDEO_DECODER_H_ | 5 #ifndef MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ |
6 #define MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ | 6 #define MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/weak_ptr.h" |
10 #include "media/base/demuxer_stream.h" | 10 #include "media/base/demuxer_stream.h" |
11 #include "media/base/video_decoder.h" | 11 #include "media/base/video_decoder.h" |
12 | 12 |
13 struct vpx_codec_ctx; | 13 struct vpx_codec_ctx; |
14 struct vpx_image; | 14 struct vpx_image; |
15 | 15 |
16 namespace base { | 16 namespace base { |
17 class MessageLoopProxy; | 17 class MessageLoopProxy; |
18 } | 18 } |
19 | 19 |
20 namespace media { | 20 namespace media { |
21 | 21 |
22 class MEDIA_EXPORT VpxVideoDecoder : public VideoDecoder { | 22 class MEDIA_EXPORT VpxVideoDecoder : public VideoDecoder { |
23 public: | 23 public: |
24 explicit VpxVideoDecoder( | 24 explicit VpxVideoDecoder( |
25 const scoped_refptr<base::MessageLoopProxy>& message_loop); | 25 const scoped_refptr<base::MessageLoopProxy>& message_loop); |
| 26 virtual ~VpxVideoDecoder(); |
26 | 27 |
27 // VideoDecoder implementation. | 28 // VideoDecoder implementation. |
28 virtual void Initialize(const scoped_refptr<DemuxerStream>& stream, | 29 virtual void Initialize(const scoped_refptr<DemuxerStream>& stream, |
29 const PipelineStatusCB& status_cb, | 30 const PipelineStatusCB& status_cb, |
30 const StatisticsCB& statistics_cb) OVERRIDE; | 31 const StatisticsCB& statistics_cb) OVERRIDE; |
31 virtual void Read(const ReadCB& read_cb) OVERRIDE; | 32 virtual void Read(const ReadCB& read_cb) OVERRIDE; |
32 virtual void Reset(const base::Closure& closure) OVERRIDE; | 33 virtual void Reset(const base::Closure& closure) OVERRIDE; |
33 virtual void Stop(const base::Closure& closure) OVERRIDE; | 34 virtual void Stop(const base::Closure& closure) OVERRIDE; |
34 | 35 |
35 protected: | |
36 virtual ~VpxVideoDecoder(); | |
37 | |
38 private: | 36 private: |
39 enum DecoderState { | 37 enum DecoderState { |
40 kUninitialized, | 38 kUninitialized, |
41 kNormal, | 39 kNormal, |
42 kFlushCodec, | 40 kFlushCodec, |
43 kDecodeFinished | 41 kDecodeFinished |
44 }; | 42 }; |
45 | 43 |
46 // Handles (re-)initializing the decoder with a (new) config. | 44 // Handles (re-)initializing the decoder with a (new) config. |
47 // Returns true when initialization was successful. | 45 // Returns true when initialization was successful. |
(...skipping 11 matching lines...) Expand all Loading... |
59 bool Decode(const scoped_refptr<DecoderBuffer>& buffer, | 57 bool Decode(const scoped_refptr<DecoderBuffer>& buffer, |
60 scoped_refptr<VideoFrame>* video_frame); | 58 scoped_refptr<VideoFrame>* video_frame); |
61 | 59 |
62 // Reset decoder and call |reset_cb_|. | 60 // Reset decoder and call |reset_cb_|. |
63 void DoReset(); | 61 void DoReset(); |
64 | 62 |
65 void CopyVpxImageTo(const vpx_image* vpx_image, | 63 void CopyVpxImageTo(const vpx_image* vpx_image, |
66 scoped_refptr<VideoFrame>* video_frame); | 64 scoped_refptr<VideoFrame>* video_frame); |
67 | 65 |
68 scoped_refptr<base::MessageLoopProxy> message_loop_; | 66 scoped_refptr<base::MessageLoopProxy> message_loop_; |
| 67 base::WeakPtrFactory<VpxVideoDecoder> weak_factory_; |
| 68 base::WeakPtr<VpxVideoDecoder> weak_this_; |
69 | 69 |
70 DecoderState state_; | 70 DecoderState state_; |
71 | 71 |
72 StatisticsCB statistics_cb_; | 72 StatisticsCB statistics_cb_; |
73 ReadCB read_cb_; | 73 ReadCB read_cb_; |
74 base::Closure reset_cb_; | 74 base::Closure reset_cb_; |
75 | 75 |
76 // Pointer to the demuxer stream that will feed us compressed buffers. | 76 // Pointer to the demuxer stream that will feed us compressed buffers. |
77 scoped_refptr<DemuxerStream> demuxer_stream_; | 77 scoped_refptr<DemuxerStream> demuxer_stream_; |
78 | 78 |
79 vpx_codec_ctx* vpx_codec_; | 79 vpx_codec_ctx* vpx_codec_; |
80 | 80 |
81 DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder); | 81 DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder); |
82 }; | 82 }; |
83 | 83 |
84 } // namespace media | 84 } // namespace media |
85 | 85 |
86 #endif // MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ | 86 #endif // MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ |
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