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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/weak_ptr.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 #include "media/base/video_decoder_config.h" | 12 #include "media/base/video_decoder_config.h" |
| 13 #include "media/base/video_frame.h" | 13 #include "media/base/video_frame.h" |
| 14 | 14 |
| 15 struct vpx_codec_ctx; | 15 struct vpx_codec_ctx; |
| 16 struct vpx_image; | 16 struct vpx_image; |
| 17 | 17 |
| 18 namespace base { | 18 namespace base { |
| 19 class MessageLoopProxy; | 19 class SingleThreadTaskRunner; |
| 20 } | 20 } |
| 21 | 21 |
| 22 namespace media { | 22 namespace media { |
| 23 | 23 |
| 24 // Libvpx video decoder wrapper. | 24 // Libvpx video decoder wrapper. |
| 25 // Note: VpxVideoDecoder accepts only YV12A VP8 content or VP9 content. This is | 25 // Note: VpxVideoDecoder accepts only YV12A VP8 content or VP9 content. This is |
| 26 // done to avoid usurping FFmpeg for all vp8 decoding, because the FFmpeg VP8 | 26 // done to avoid usurping FFmpeg for all vp8 decoding, because the FFmpeg VP8 |
| 27 // decoder is faster than the libvpx VP8 decoder. | 27 // decoder is faster than the libvpx VP8 decoder. |
| 28 class MEDIA_EXPORT VpxVideoDecoder : public VideoDecoder { | 28 class MEDIA_EXPORT VpxVideoDecoder : public VideoDecoder { |
| 29 public: | 29 public: |
| 30 explicit VpxVideoDecoder( | 30 explicit VpxVideoDecoder( |
| 31 const scoped_refptr<base::MessageLoopProxy>& message_loop); | 31 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); |
| 32 virtual ~VpxVideoDecoder(); | 32 virtual ~VpxVideoDecoder(); |
| 33 | 33 |
| 34 // VideoDecoder implementation. | 34 // VideoDecoder implementation. |
| 35 virtual void Initialize(const VideoDecoderConfig& config, | 35 virtual void Initialize(const VideoDecoderConfig& config, |
| 36 const PipelineStatusCB& status_cb) OVERRIDE; | 36 const PipelineStatusCB& status_cb) OVERRIDE; |
| 37 virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, | 37 virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, |
| 38 const DecodeCB& decode_cb) OVERRIDE; | 38 const DecodeCB& decode_cb) OVERRIDE; |
| 39 virtual void Reset(const base::Closure& closure) OVERRIDE; | 39 virtual void Reset(const base::Closure& closure) OVERRIDE; |
| 40 virtual void Stop(const base::Closure& closure) OVERRIDE; | 40 virtual void Stop(const base::Closure& closure) OVERRIDE; |
| 41 virtual bool HasAlpha() const OVERRIDE; | 41 virtual bool HasAlpha() const OVERRIDE; |
| (...skipping 17 matching lines...) Expand all Loading... |
| 59 bool VpxDecode(const scoped_refptr<DecoderBuffer>& buffer, | 59 bool VpxDecode(const scoped_refptr<DecoderBuffer>& buffer, |
| 60 scoped_refptr<VideoFrame>* video_frame); | 60 scoped_refptr<VideoFrame>* video_frame); |
| 61 | 61 |
| 62 // Reset decoder and call |reset_cb_|. | 62 // Reset decoder and call |reset_cb_|. |
| 63 void DoReset(); | 63 void DoReset(); |
| 64 | 64 |
| 65 void CopyVpxImageTo(const vpx_image* vpx_image, | 65 void CopyVpxImageTo(const vpx_image* vpx_image, |
| 66 const struct vpx_image* vpx_image_alpha, | 66 const struct vpx_image* vpx_image_alpha, |
| 67 scoped_refptr<VideoFrame>* video_frame); | 67 scoped_refptr<VideoFrame>* video_frame); |
| 68 | 68 |
| 69 scoped_refptr<base::MessageLoopProxy> message_loop_; | 69 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
| 70 base::WeakPtrFactory<VpxVideoDecoder> weak_factory_; | 70 base::WeakPtrFactory<VpxVideoDecoder> weak_factory_; |
| 71 base::WeakPtr<VpxVideoDecoder> weak_this_; | 71 base::WeakPtr<VpxVideoDecoder> weak_this_; |
| 72 | 72 |
| 73 DecoderState state_; | 73 DecoderState state_; |
| 74 | 74 |
| 75 DecodeCB decode_cb_; | 75 DecodeCB decode_cb_; |
| 76 base::Closure reset_cb_; | 76 base::Closure reset_cb_; |
| 77 | 77 |
| 78 VideoDecoderConfig config_; | 78 VideoDecoderConfig config_; |
| 79 | 79 |
| 80 vpx_codec_ctx* vpx_codec_; | 80 vpx_codec_ctx* vpx_codec_; |
| 81 vpx_codec_ctx* vpx_codec_alpha_; | 81 vpx_codec_ctx* vpx_codec_alpha_; |
| 82 | 82 |
| 83 DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder); | 83 DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder); |
| 84 }; | 84 }; |
| 85 | 85 |
| 86 } // namespace media | 86 } // namespace media |
| 87 | 87 |
| 88 #endif // MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ | 88 #endif // MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ |
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