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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 // Interface and some concrete classes for applying various transforms | 5 // Interface and some concrete classes for applying various transforms |
| 6 // to AVPackets. FFmpegBitstreamConverter, in particular, can be used | 6 // to AVPackets. FFmpegBitstreamConverter, in particular, can be used |
| 7 // to apply FFmpeg bitstream filters to the incoming AVPacket to transcode | 7 // to apply FFmpeg bitstream filters to the incoming AVPacket to transcode |
| 8 // the packet format. | 8 // the packet format. |
| 9 | 9 |
| 10 #ifndef MEDIA_FILTERS_BITSTREAM_CONVERTER_H_ | 10 #ifndef MEDIA_FILTERS_BITSTREAM_CONVERTER_H_ |
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| 34 | 34 |
| 35 private: | 35 private: |
| 36 DISALLOW_COPY_AND_ASSIGN(BitstreamConverter); | 36 DISALLOW_COPY_AND_ASSIGN(BitstreamConverter); |
| 37 }; | 37 }; |
| 38 | 38 |
| 39 class IdentityBitstreamConverter : public BitstreamConverter { | 39 class IdentityBitstreamConverter : public BitstreamConverter { |
| 40 public: | 40 public: |
| 41 IdentityBitstreamConverter() {} | 41 IdentityBitstreamConverter() {} |
| 42 virtual ~IdentityBitstreamConverter() {} | 42 virtual ~IdentityBitstreamConverter() {} |
| 43 | 43 |
| 44 virtual bool Initialize() { return true; } | 44 virtual bool Initialize(); |
| 45 virtual bool ConvertPacket(AVPacket* packet) { return true; } | 45 virtual bool ConvertPacket(AVPacket* packet); |
| 46 | 46 |
| 47 private: | 47 private: |
| 48 DISALLOW_COPY_AND_ASSIGN(IdentityBitstreamConverter); | 48 DISALLOW_COPY_AND_ASSIGN(IdentityBitstreamConverter); |
| 49 }; | 49 }; |
| 50 | 50 |
| 51 class FFmpegBitstreamConverter : public BitstreamConverter { | 51 class FFmpegBitstreamConverter : public BitstreamConverter { |
| 52 public: | 52 public: |
| 53 // Creates FFmpegBitstreamConverter based on the FFmpeg bistream filter | 53 // Creates FFmpegBitstreamConverter based on the FFmpeg bistream filter |
| 54 // corresponding to |filter_name|. | 54 // corresponding to |filter_name|. |
| 55 // | 55 // |
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| 72 std::string filter_name_; | 72 std::string filter_name_; |
| 73 AVBitStreamFilterContext* stream_filter_; | 73 AVBitStreamFilterContext* stream_filter_; |
| 74 AVCodecContext* stream_context_; | 74 AVCodecContext* stream_context_; |
| 75 | 75 |
| 76 DISALLOW_COPY_AND_ASSIGN(FFmpegBitstreamConverter); | 76 DISALLOW_COPY_AND_ASSIGN(FFmpegBitstreamConverter); |
| 77 }; | 77 }; |
| 78 | 78 |
| 79 } // namespace media | 79 } // namespace media |
| 80 | 80 |
| 81 #endif // MEDIA_FILTERS_BITSTREAM_CONVERTER_H_ | 81 #endif // MEDIA_FILTERS_BITSTREAM_CONVERTER_H_ |
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