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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 // This file contains an implementation of a VP8 raw stream parser, | 5 // This file contains an implementation of a VP8 raw stream parser, |
6 // as defined in RFC 6386. | 6 // as defined in RFC 6386. |
7 | 7 |
8 #ifndef MEDIA_FILTERS_VP8_PARSER_H_ | 8 #ifndef MEDIA_FILTERS_VP8_PARSER_H_ |
9 #define MEDIA_FILTERS_VP8_PARSER_H_ | 9 #define MEDIA_FILTERS_VP8_PARSER_H_ |
10 | 10 |
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85 | 85 |
86 const size_t kMaxDCTPartitions = 8; | 86 const size_t kMaxDCTPartitions = 8; |
87 | 87 |
88 struct MEDIA_EXPORT Vp8FrameHeader { | 88 struct MEDIA_EXPORT Vp8FrameHeader { |
89 Vp8FrameHeader(); | 89 Vp8FrameHeader(); |
90 | 90 |
91 enum FrameType { KEYFRAME = 0, INTERFRAME = 1 }; | 91 enum FrameType { KEYFRAME = 0, INTERFRAME = 1 }; |
92 bool IsKeyframe() const { return key_frame == KEYFRAME; } | 92 bool IsKeyframe() const { return key_frame == KEYFRAME; } |
93 | 93 |
94 enum GoldenRefreshMode { | 94 enum GoldenRefreshMode { |
95 COPY_LAST_TO_GOLDEN = 1, | 95 kCopyLastToGolden = 1, |
96 COPY_ALT_TO_GOLDEN = 2, | 96 kCopyAltToGolden = 2, |
97 }; | 97 }; |
98 | 98 |
99 enum AltRefreshMode { | 99 enum AltRefreshMode { |
100 COPY_LAST_TO_ALT = 1, | 100 kCopyLastToAlt = 1, |
101 COPY_GOLDEN_TO_ALT = 2, | 101 kCopyGoldenToAlt = 2, |
102 }; | 102 }; |
103 | 103 |
104 FrameType key_frame; | 104 FrameType key_frame; |
105 uint8_t version; | 105 uint8_t version; |
106 bool is_experimental; | 106 bool is_experimental; |
107 bool show_frame; | 107 bool show_frame; |
108 size_t first_part_size; | 108 size_t first_part_size; |
109 | 109 |
110 uint16_t width; | 110 uint16_t width; |
111 uint8_t horizontal_scale; | 111 uint8_t horizontal_scale; |
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184 const uint8_t* stream_; | 184 const uint8_t* stream_; |
185 size_t bytes_left_; | 185 size_t bytes_left_; |
186 Vp8BoolDecoder bd_; | 186 Vp8BoolDecoder bd_; |
187 | 187 |
188 DISALLOW_COPY_AND_ASSIGN(Vp8Parser); | 188 DISALLOW_COPY_AND_ASSIGN(Vp8Parser); |
189 }; | 189 }; |
190 | 190 |
191 } // namespace media | 191 } // namespace media |
192 | 192 |
193 #endif // MEDIA_FILTERS_VP8_PARSER_H_ | 193 #endif // MEDIA_FILTERS_VP8_PARSER_H_ |
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