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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_FFMPEG_VIDEO_DECODER_H_ | 5 #ifndef MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_ |
6 #define MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_ | 6 #define MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
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27 | 27 |
28 class MEDIA_EXPORT FFmpegVideoDecoder : public VideoDecoder { | 28 class MEDIA_EXPORT FFmpegVideoDecoder : public VideoDecoder { |
29 public: | 29 public: |
30 explicit FFmpegVideoDecoder( | 30 explicit FFmpegVideoDecoder( |
31 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); | 31 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); |
32 virtual ~FFmpegVideoDecoder(); | 32 virtual ~FFmpegVideoDecoder(); |
33 | 33 |
34 // VideoDecoder implementation. | 34 // VideoDecoder implementation. |
35 virtual void Initialize(const VideoDecoderConfig& config, | 35 virtual void Initialize(const VideoDecoderConfig& config, |
36 bool low_delay, | 36 bool low_delay, |
37 const PipelineStatusCB& status_cb) OVERRIDE; | 37 const PipelineStatusCB& status_cb, |
| 38 const OutputCB& output_cb) OVERRIDE; |
38 virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, | 39 virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, |
39 const DecodeCB& decode_cb) OVERRIDE; | 40 const DecodeCB& decode_cb) OVERRIDE; |
40 virtual void Reset(const base::Closure& closure) OVERRIDE; | 41 virtual void Reset(const base::Closure& closure) OVERRIDE; |
41 virtual void Stop() OVERRIDE; | 42 virtual void Stop() OVERRIDE; |
42 | 43 |
43 // Callback called from within FFmpeg to allocate a buffer based on | 44 // Callback called from within FFmpeg to allocate a buffer based on |
44 // the dimensions of |codec_context|. See AVCodecContext.get_buffer | 45 // the dimensions of |codec_context|. See AVCodecContext.get_buffer |
45 // documentation inside FFmpeg. | 46 // documentation inside FFmpeg. |
46 int GetVideoBuffer(AVCodecContext *codec_context, AVFrame* frame); | 47 int GetVideoBuffer(AVCodecContext *codec_context, AVFrame* frame); |
47 | 48 |
48 private: | 49 private: |
49 enum DecoderState { | 50 enum DecoderState { |
50 kUninitialized, | 51 kUninitialized, |
51 kNormal, | 52 kNormal, |
52 kFlushCodec, | |
53 kDecodeFinished, | 53 kDecodeFinished, |
54 kError | 54 kError |
55 }; | 55 }; |
56 | 56 |
57 // Handles decoding an unencrypted encoded buffer. | 57 // Handles decoding an unencrypted encoded buffer. |
58 void DecodeBuffer(const scoped_refptr<DecoderBuffer>& buffer); | |
59 bool FFmpegDecode(const scoped_refptr<DecoderBuffer>& buffer, | 58 bool FFmpegDecode(const scoped_refptr<DecoderBuffer>& buffer, |
60 scoped_refptr<VideoFrame>* video_frame); | 59 scoped_refptr<VideoFrame>* video_frame); |
61 | 60 |
62 // Handles (re-)initializing the decoder with a (new) config. | 61 // Handles (re-)initializing the decoder with a (new) config. |
63 // Returns true if initialization was successful. | 62 // Returns true if initialization was successful. |
64 bool ConfigureDecoder(bool low_delay); | 63 bool ConfigureDecoder(bool low_delay); |
65 | 64 |
66 // Releases resources associated with |codec_context_| and |av_frame_| | 65 // Releases resources associated with |codec_context_| and |av_frame_| |
67 // and resets them to NULL. | 66 // and resets them to NULL. |
68 void ReleaseFFmpegResources(); | 67 void ReleaseFFmpegResources(); |
69 | 68 |
70 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 69 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
71 | 70 |
72 DecoderState state_; | 71 DecoderState state_; |
73 | 72 |
74 // TODO(xhwang): Merge DecodeBuffer() into Decode() and remove this. | 73 OutputCB output_cb_; |
75 DecodeCB decode_cb_; | |
76 | 74 |
77 // FFmpeg structures owned by this object. | 75 // FFmpeg structures owned by this object. |
78 scoped_ptr<AVCodecContext, ScopedPtrAVFreeContext> codec_context_; | 76 scoped_ptr<AVCodecContext, ScopedPtrAVFreeContext> codec_context_; |
79 scoped_ptr<AVFrame, ScopedPtrAVFreeFrame> av_frame_; | 77 scoped_ptr<AVFrame, ScopedPtrAVFreeFrame> av_frame_; |
80 | 78 |
81 VideoDecoderConfig config_; | 79 VideoDecoderConfig config_; |
82 | 80 |
83 VideoFramePool frame_pool_; | 81 VideoFramePool frame_pool_; |
84 | 82 |
85 DISALLOW_COPY_AND_ASSIGN(FFmpegVideoDecoder); | 83 DISALLOW_COPY_AND_ASSIGN(FFmpegVideoDecoder); |
86 }; | 84 }; |
87 | 85 |
88 } // namespace media | 86 } // namespace media |
89 | 87 |
90 #endif // MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_ | 88 #endif // MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_ |
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