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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 H264 Annex-B video stream parser. | 5 // This file contains an implementation of an H264 Annex-B video stream parser. |
| 6 | 6 |
| 7 #ifndef MEDIA_FILTERS_H264_PARSER_H_ | 7 #ifndef MEDIA_FILTERS_H264_PARSER_H_ |
| 8 #define MEDIA_FILTERS_H264_PARSER_H_ | 8 #define MEDIA_FILTERS_H264_PARSER_H_ |
| 9 | 9 |
| 10 #include <stddef.h> | 10 #include <stddef.h> |
| 11 #include <stdint.h> | 11 #include <stdint.h> |
| 12 #include <sys/types.h> | 12 #include <sys/types.h> |
| 13 | 13 |
| 14 #include <map> | 14 #include <map> |
| 15 #include <memory> | 15 #include <memory> |
| 16 #include <vector> | 16 #include <vector> |
| 17 | 17 |
| 18 #include "base/macros.h" | 18 #include "base/macros.h" |
| 19 #include "base/optional.h" | 19 #include "base/optional.h" |
| 20 #include "media/base/media_export.h" | 20 #include "media/base/media_export.h" |
| 21 #include "media/base/ranges.h" | 21 #include "media/base/ranges.h" |
| 22 #include "media/base/video_codecs.h" | 22 #include "media/base/video_codecs.h" |
| 23 #include "media/base/video_color_space.h" |
| 23 #include "media/filters/h264_bit_reader.h" | 24 #include "media/filters/h264_bit_reader.h" |
| 24 #include "ui/gfx/color_space.h" | |
| 25 | 25 |
| 26 namespace gfx { | 26 namespace gfx { |
| 27 class Rect; | 27 class Rect; |
| 28 class Size; | 28 class Size; |
| 29 } | 29 } |
| 30 | 30 |
| 31 namespace media { | 31 namespace media { |
| 32 | 32 |
| 33 struct SubsampleEntry; | 33 struct SubsampleEntry; |
| 34 | 34 |
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| 181 | 181 |
| 182 bool low_delay_hrd_flag; | 182 bool low_delay_hrd_flag; |
| 183 | 183 |
| 184 int chroma_array_type; | 184 int chroma_array_type; |
| 185 | 185 |
| 186 // Helpers to compute frequently-used values. These methods return | 186 // Helpers to compute frequently-used values. These methods return |
| 187 // base::nullopt if they encounter integer overflow. They do not verify that | 187 // base::nullopt if they encounter integer overflow. They do not verify that |
| 188 // the results are in-spec for the given profile or level. | 188 // the results are in-spec for the given profile or level. |
| 189 base::Optional<gfx::Size> GetCodedSize() const; | 189 base::Optional<gfx::Size> GetCodedSize() const; |
| 190 base::Optional<gfx::Rect> GetVisibleRect() const; | 190 base::Optional<gfx::Rect> GetVisibleRect() const; |
| 191 gfx::ColorSpace GetColorSpace() const; | 191 VideoColorSpace GetColorSpace() const; |
| 192 }; | 192 }; |
| 193 | 193 |
| 194 struct MEDIA_EXPORT H264PPS { | 194 struct MEDIA_EXPORT H264PPS { |
| 195 H264PPS(); | 195 H264PPS(); |
| 196 | 196 |
| 197 int pic_parameter_set_id; | 197 int pic_parameter_set_id; |
| 198 int seq_parameter_set_id; | 198 int seq_parameter_set_id; |
| 199 bool entropy_coding_mode_flag; | 199 bool entropy_coding_mode_flag; |
| 200 bool bottom_field_pic_order_in_frame_present_flag; | 200 bool bottom_field_pic_order_in_frame_present_flag; |
| 201 int num_slice_groups_minus1; | 201 int num_slice_groups_minus1; |
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| 503 // Ranges of encrypted bytes in the buffer passed to | 503 // Ranges of encrypted bytes in the buffer passed to |
| 504 // SetEncryptedStream(). | 504 // SetEncryptedStream(). |
| 505 Ranges<const uint8_t*> encrypted_ranges_; | 505 Ranges<const uint8_t*> encrypted_ranges_; |
| 506 | 506 |
| 507 DISALLOW_COPY_AND_ASSIGN(H264Parser); | 507 DISALLOW_COPY_AND_ASSIGN(H264Parser); |
| 508 }; | 508 }; |
| 509 | 509 |
| 510 } // namespace media | 510 } // namespace media |
| 511 | 511 |
| 512 #endif // MEDIA_FILTERS_H264_PARSER_H_ | 512 #endif // MEDIA_FILTERS_H264_PARSER_H_ |
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