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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 // Implements the Demuxer interface using FFmpeg's libavformat. At this time | 5 // Implements the Demuxer interface using FFmpeg's libavformat. At this time |
6 // will support demuxing any audio/video format thrown at it. The streams | 6 // will support demuxing any audio/video format thrown at it. The streams |
7 // output mime types audio/x-ffmpeg and video/x-ffmpeg and include an integer | 7 // output mime types audio/x-ffmpeg and video/x-ffmpeg and include an integer |
8 // key FFmpegCodecID which contains the CodecID enumeration value. The CodecIDs | 8 // key FFmpegCodecID which contains the CodecID enumeration value. The CodecIDs |
9 // can be used to create and initialize the corresponding FFmpeg decoder. | 9 // can be used to create and initialize the corresponding FFmpeg decoder. |
10 // | 10 // |
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104 | 104 |
105 // DemuxerStream implementation. | 105 // DemuxerStream implementation. |
106 Type type() const override; | 106 Type type() const override; |
107 Liveness liveness() const override; | 107 Liveness liveness() const override; |
108 void Read(const ReadCB& read_cb) override; | 108 void Read(const ReadCB& read_cb) override; |
109 void EnableBitstreamConverter() override; | 109 void EnableBitstreamConverter() override; |
110 bool SupportsConfigChanges() override; | 110 bool SupportsConfigChanges() override; |
111 AudioDecoderConfig audio_decoder_config() override; | 111 AudioDecoderConfig audio_decoder_config() override; |
112 VideoDecoderConfig video_decoder_config() override; | 112 VideoDecoderConfig video_decoder_config() override; |
113 VideoRotation video_rotation() override; | 113 VideoRotation video_rotation() override; |
| 114 bool enabled() const override; |
| 115 void set_enabled(bool enabled, base::TimeDelta timestamp) override; |
114 | 116 |
115 void SetLiveness(Liveness liveness); | 117 void SetLiveness(Liveness liveness); |
116 | 118 |
117 // Returns the range of buffered data in this stream. | 119 // Returns the range of buffered data in this stream. |
118 Ranges<base::TimeDelta> GetBufferedRanges() const; | 120 Ranges<base::TimeDelta> GetBufferedRanges() const; |
119 | 121 |
120 // Returns elapsed time based on the already queued packets. | 122 // Returns elapsed time based on the already queued packets. |
121 // Used to determine stream duration when it's not known ahead of time. | 123 // Used to determine stream duration when it's not known ahead of time. |
122 base::TimeDelta GetElapsedTime() const; | 124 base::TimeDelta GetElapsedTime() const; |
123 | 125 |
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165 std::unique_ptr<AudioDecoderConfig> audio_config_; | 167 std::unique_ptr<AudioDecoderConfig> audio_config_; |
166 std::unique_ptr<VideoDecoderConfig> video_config_; | 168 std::unique_ptr<VideoDecoderConfig> video_config_; |
167 Type type_; | 169 Type type_; |
168 Liveness liveness_; | 170 Liveness liveness_; |
169 base::TimeDelta duration_; | 171 base::TimeDelta duration_; |
170 bool end_of_stream_; | 172 bool end_of_stream_; |
171 base::TimeDelta last_packet_timestamp_; | 173 base::TimeDelta last_packet_timestamp_; |
172 base::TimeDelta last_packet_duration_; | 174 base::TimeDelta last_packet_duration_; |
173 Ranges<base::TimeDelta> buffered_ranges_; | 175 Ranges<base::TimeDelta> buffered_ranges_; |
174 VideoRotation video_rotation_; | 176 VideoRotation video_rotation_; |
| 177 bool is_enabled_; |
175 | 178 |
176 DecoderBufferQueue buffer_queue_; | 179 DecoderBufferQueue buffer_queue_; |
177 ReadCB read_cb_; | 180 ReadCB read_cb_; |
178 | 181 |
179 #if defined(USE_PROPRIETARY_CODECS) | 182 #if defined(USE_PROPRIETARY_CODECS) |
180 std::unique_ptr<FFmpegBitstreamConverter> bitstream_converter_; | 183 std::unique_ptr<FFmpegBitstreamConverter> bitstream_converter_; |
181 #endif | 184 #endif |
182 | 185 |
183 std::string encryption_key_id_; | 186 std::string encryption_key_id_; |
184 bool fixup_negative_timestamps_; | 187 bool fixup_negative_timestamps_; |
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348 | 351 |
349 // NOTE: Weak pointers must be invalidated before all other member variables. | 352 // NOTE: Weak pointers must be invalidated before all other member variables. |
350 base::WeakPtrFactory<FFmpegDemuxer> weak_factory_; | 353 base::WeakPtrFactory<FFmpegDemuxer> weak_factory_; |
351 | 354 |
352 DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer); | 355 DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer); |
353 }; | 356 }; |
354 | 357 |
355 } // namespace media | 358 } // namespace media |
356 | 359 |
357 #endif // MEDIA_FILTERS_FFMPEG_DEMUXER_H_ | 360 #endif // MEDIA_FILTERS_FFMPEG_DEMUXER_H_ |
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