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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_BASE_H264_BITSTREAM_CONVERTER_H_ | 5 #ifndef MEDIA_BASE_H264_BITSTREAM_CONVERTER_H_ |
| 6 #define MEDIA_BASE_H264_BITSTREAM_CONVERTER_H_ | 6 #define MEDIA_BASE_H264_BITSTREAM_CONVERTER_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
| 9 #include "media/base/media_export.h" |
| 9 | 10 |
| 10 namespace media { | 11 namespace media { |
| 11 | 12 |
| 12 // H264BitstreamConverter is a class to convert H.264 bitstream from | 13 // H264BitstreamConverter is a class to convert H.264 bitstream from |
| 13 // MP4 format (as specified in ISO/IEC 14496-15) into H.264 bytestream | 14 // MP4 format (as specified in ISO/IEC 14496-15) into H.264 bytestream |
| 14 // (as specified in ISO/IEC 14496-10 Annex B). | 15 // (as specified in ISO/IEC 14496-10 Annex B). |
| 15 class H264BitstreamConverter { | 16 class MEDIA_EXPORT H264BitstreamConverter { |
| 16 public: | 17 public: |
| 17 H264BitstreamConverter(); | 18 H264BitstreamConverter(); |
| 18 ~H264BitstreamConverter(); | 19 ~H264BitstreamConverter(); |
| 19 | 20 |
| 20 // Parses the global AVCDecoderConfigurationRecord from the file format's | 21 // Parses the global AVCDecoderConfigurationRecord from the file format's |
| 21 // headers. Converter will remember the field length from the configuration | 22 // headers. Converter will remember the field length from the configuration |
| 22 // headers after this. | 23 // headers after this. |
| 23 // | 24 // |
| 24 // Parameters | 25 // Parameters |
| 25 // configuration_record | 26 // configuration_record |
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| 115 // Variable to hold interleaving field's length in bytes. | 116 // Variable to hold interleaving field's length in bytes. |
| 116 uint8 nal_unit_length_field_width_; | 117 uint8 nal_unit_length_field_width_; |
| 117 | 118 |
| 118 DISALLOW_COPY_AND_ASSIGN(H264BitstreamConverter); | 119 DISALLOW_COPY_AND_ASSIGN(H264BitstreamConverter); |
| 119 }; | 120 }; |
| 120 | 121 |
| 121 } // namespace media | 122 } // namespace media |
| 122 | 123 |
| 123 #endif // MEDIA_BASE_H264_BITSTREAM_CONVERTER_H_ | 124 #endif // MEDIA_BASE_H264_BITSTREAM_CONVERTER_H_ |
| 124 | 125 |
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