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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 // This file contains an implementation of an H.264 Decoded Picture Buffer | 5 // This file contains an implementation of an H.264 Decoded Picture Buffer |
6 // used in H264 decoders. | 6 // used in H264 decoders. |
7 | 7 |
8 #ifndef CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_ | 8 #ifndef CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_ |
9 #define CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_ | 9 #define CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_ |
10 | 10 |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
14 #include "base/memory/scoped_vector.h" | 14 #include "base/memory/scoped_vector.h" |
15 #include "content/common/gpu/media/h264_parser.h" | 15 #include "media/filters/h264_parser.h" |
16 | 16 |
17 namespace content { | 17 namespace content { |
18 | 18 |
19 // A picture (a frame or a field) in the H.264 spec sense. | 19 // A picture (a frame or a field) in the H.264 spec sense. |
20 // See spec at http://www.itu.int/rec/T-REC-H.264 | 20 // See spec at http://www.itu.int/rec/T-REC-H.264 |
21 struct H264Picture { | 21 struct H264Picture { |
22 enum Field { | 22 enum Field { |
23 FIELD_NONE, | 23 FIELD_NONE, |
24 FIELD_TOP, | 24 FIELD_TOP, |
25 FIELD_BOTTOM, | 25 FIELD_BOTTOM, |
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48 // Does memory management op 5 needs to be executed after this | 48 // Does memory management op 5 needs to be executed after this |
49 // picture has finished decoding? | 49 // picture has finished decoding? |
50 bool mem_mgmt_5; | 50 bool mem_mgmt_5; |
51 | 51 |
52 Field field; | 52 Field field; |
53 | 53 |
54 // Values from slice_hdr to be used during reference marking and | 54 // Values from slice_hdr to be used during reference marking and |
55 // memory management after finishing this picture. | 55 // memory management after finishing this picture. |
56 bool long_term_reference_flag; | 56 bool long_term_reference_flag; |
57 bool adaptive_ref_pic_marking_mode_flag; | 57 bool adaptive_ref_pic_marking_mode_flag; |
58 H264DecRefPicMarking ref_pic_marking[H264SliceHeader::kRefListSize]; | 58 media::H264DecRefPicMarking |
| 59 ref_pic_marking[media::H264SliceHeader::kRefListSize]; |
59 | 60 |
60 typedef std::vector<H264Picture*> PtrVector; | 61 typedef std::vector<H264Picture*> PtrVector; |
61 }; | 62 }; |
62 | 63 |
63 // DPB - Decoded Picture Buffer. | 64 // DPB - Decoded Picture Buffer. |
64 // Stores decoded pictures that will be used for future display | 65 // Stores decoded pictures that will be used for future display |
65 // and/or reference. | 66 // and/or reference. |
66 class H264DPB { | 67 class H264DPB { |
67 public: | 68 public: |
68 H264DPB(); | 69 H264DPB(); |
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127 private: | 128 private: |
128 Pictures pics_; | 129 Pictures pics_; |
129 size_t max_num_pics_; | 130 size_t max_num_pics_; |
130 | 131 |
131 DISALLOW_COPY_AND_ASSIGN(H264DPB); | 132 DISALLOW_COPY_AND_ASSIGN(H264DPB); |
132 }; | 133 }; |
133 | 134 |
134 } // namespace content | 135 } // namespace content |
135 | 136 |
136 #endif // CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_ | 137 #endif // CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_ |
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