OLD | NEW |
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/macros.h" | 9 #include "base/macros.h" |
10 #include "base/threading/thread_checker.h" | 10 #include "base/threading/thread_checker.h" |
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
48 | 48 |
49 private: | 49 private: |
50 enum DecoderState { | 50 enum DecoderState { |
51 kUninitialized, | 51 kUninitialized, |
52 kNormal, | 52 kNormal, |
53 kFlushCodec, | 53 kFlushCodec, |
54 kDecodeFinished, | 54 kDecodeFinished, |
55 kError | 55 kError |
56 }; | 56 }; |
57 | 57 |
| 58 // Return values for decoding alpha plane. |
| 59 enum AlphaDecodeStatus { |
| 60 kAlphaPlaneProcessed, // Alpha plane (if found) was decoded successfully. |
| 61 kNoAlphaPlaneData, // Alpha plane was found, but decoder did not return any |
| 62 // data. |
| 63 kAlphaPlaneError // Fatal error occured when trying to decode alpha plane. |
| 64 }; |
| 65 |
58 // Handles (re-)initializing the decoder with a (new) config. | 66 // Handles (re-)initializing the decoder with a (new) config. |
59 // Returns true when initialization was successful. | 67 // Returns true when initialization was successful. |
60 bool ConfigureDecoder(const VideoDecoderConfig& config); | 68 bool ConfigureDecoder(const VideoDecoderConfig& config); |
61 | 69 |
62 void CloseDecoder(); | 70 void CloseDecoder(); |
63 | 71 |
64 // Try to decode |buffer| into |video_frame|. Return true if all decoding | 72 // Try to decode |buffer| into |video_frame|. Return true if all decoding |
65 // succeeded. Note that decoding can succeed and still |video_frame| be | 73 // succeeded. Note that decoding can succeed and still |video_frame| be |
66 // nullptr if there has been a partial decoding. | 74 // nullptr if there has been a partial decoding. |
67 bool VpxDecode(const scoped_refptr<DecoderBuffer>& buffer, | 75 bool VpxDecode(const scoped_refptr<DecoderBuffer>& buffer, |
68 scoped_refptr<VideoFrame>* video_frame); | 76 scoped_refptr<VideoFrame>* video_frame); |
69 | 77 |
70 bool CopyVpxImageToVideoFrame(const struct vpx_image* vpx_image, | 78 bool CopyVpxImageToVideoFrame(const struct vpx_image* vpx_image, |
| 79 const struct vpx_image* vpx_image_alpha, |
71 scoped_refptr<VideoFrame>* video_frame); | 80 scoped_refptr<VideoFrame>* video_frame); |
72 | 81 |
| 82 AlphaDecodeStatus DecodeAlphaPlane( |
| 83 const struct vpx_image* vpx_image, |
| 84 const struct vpx_image** vpx_image_alpha, |
| 85 const scoped_refptr<DecoderBuffer>& buffer); |
| 86 |
73 base::ThreadChecker thread_checker_; | 87 base::ThreadChecker thread_checker_; |
74 | 88 |
75 DecoderState state_; | 89 DecoderState state_; |
76 | 90 |
77 OutputCB output_cb_; | 91 OutputCB output_cb_; |
78 | 92 |
79 VideoDecoderConfig config_; | 93 VideoDecoderConfig config_; |
80 | 94 |
81 vpx_codec_ctx* vpx_codec_; | 95 vpx_codec_ctx* vpx_codec_; |
82 vpx_codec_ctx* vpx_codec_alpha_; | 96 vpx_codec_ctx* vpx_codec_alpha_; |
83 | 97 |
84 // |memory_pool_| is a single-threaded memory pool used for VP9 decoding | 98 // |memory_pool_| is a single-threaded memory pool used for VP9 decoding |
85 // with no alpha. |frame_pool_| is used for all other cases. | 99 // with no alpha. |frame_pool_| is used for all other cases. |
86 class MemoryPool; | 100 class MemoryPool; |
87 scoped_refptr<MemoryPool> memory_pool_; | 101 scoped_refptr<MemoryPool> memory_pool_; |
88 | 102 |
89 VideoFramePool frame_pool_; | 103 VideoFramePool frame_pool_; |
90 | 104 |
91 DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder); | 105 DISALLOW_COPY_AND_ASSIGN(VpxVideoDecoder); |
92 }; | 106 }; |
93 | 107 |
94 } // namespace media | 108 } // namespace media |
95 | 109 |
96 #endif // MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ | 110 #endif // MEDIA_FILTERS_VPX_VIDEO_DECODER_H_ |
OLD | NEW |