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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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31 #include <vector> | 31 #include <vector> |
32 | 32 |
33 #include "base/callback.h" | 33 #include "base/callback.h" |
34 #include "base/macros.h" | 34 #include "base/macros.h" |
35 #include "base/memory/scoped_vector.h" | 35 #include "base/memory/scoped_vector.h" |
36 #include "base/threading/thread.h" | 36 #include "base/threading/thread.h" |
37 #include "media/base/audio_decoder_config.h" | 37 #include "media/base/audio_decoder_config.h" |
38 #include "media/base/decoder_buffer.h" | 38 #include "media/base/decoder_buffer.h" |
39 #include "media/base/decoder_buffer_queue.h" | 39 #include "media/base/decoder_buffer_queue.h" |
40 #include "media/base/demuxer.h" | 40 #include "media/base/demuxer.h" |
| 41 #include "media/base/media_tracks.h" |
41 #include "media/base/pipeline_status.h" | 42 #include "media/base/pipeline_status.h" |
42 #include "media/base/text_track_config.h" | 43 #include "media/base/text_track_config.h" |
43 #include "media/base/video_decoder_config.h" | 44 #include "media/base/video_decoder_config.h" |
44 #include "media/ffmpeg/ffmpeg_deleters.h" | 45 #include "media/ffmpeg/ffmpeg_deleters.h" |
45 #include "media/filters/blocking_url_protocol.h" | 46 #include "media/filters/blocking_url_protocol.h" |
46 | 47 |
47 // FFmpeg forward declarations. | 48 // FFmpeg forward declarations. |
48 struct AVPacket; | 49 struct AVPacket; |
49 struct AVRational; | 50 struct AVRational; |
50 struct AVStream; | 51 struct AVStream; |
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206 base::Time GetTimelineOffset() const override; | 207 base::Time GetTimelineOffset() const override; |
207 DemuxerStream* GetStream(DemuxerStream::Type type) override; | 208 DemuxerStream* GetStream(DemuxerStream::Type type) override; |
208 base::TimeDelta GetStartTime() const override; | 209 base::TimeDelta GetStartTime() const override; |
209 int64_t GetMemoryUsage() const override; | 210 int64_t GetMemoryUsage() const override; |
210 | 211 |
211 // Calls |encrypted_media_init_data_cb_| with the initialization data | 212 // Calls |encrypted_media_init_data_cb_| with the initialization data |
212 // encountered in the file. | 213 // encountered in the file. |
213 void OnEncryptedMediaInitData(EmeInitDataType init_data_type, | 214 void OnEncryptedMediaInitData(EmeInitDataType init_data_type, |
214 const std::string& encryption_key_id); | 215 const std::string& encryption_key_id); |
215 | 216 |
| 217 const DemuxerStream* GetDemuxerStreamByTrackId( |
| 218 MediaTrack::TrackId track_id) const override; |
| 219 |
216 // Allow FFmpegDemuxerStream to notify us when there is updated information | 220 // Allow FFmpegDemuxerStream to notify us when there is updated information |
217 // about capacity and what buffered data is available. | 221 // about capacity and what buffered data is available. |
218 void NotifyCapacityAvailable(); | 222 void NotifyCapacityAvailable(); |
219 void NotifyBufferingChanged(); | 223 void NotifyBufferingChanged(); |
220 | 224 |
221 // The lowest demuxed timestamp. If negative, DemuxerStreams must use this to | 225 // The lowest demuxed timestamp. If negative, DemuxerStreams must use this to |
222 // adjust packet timestamps such that external clients see a zero-based | 226 // adjust packet timestamps such that external clients see a zero-based |
223 // timeline. | 227 // timeline. |
224 base::TimeDelta start_time() const { return start_time_; } | 228 base::TimeDelta start_time() const { return start_time_; } |
225 | 229 |
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327 bool duration_known_; | 331 bool duration_known_; |
328 | 332 |
329 // FFmpegURLProtocol implementation and corresponding glue bits. | 333 // FFmpegURLProtocol implementation and corresponding glue bits. |
330 std::unique_ptr<BlockingUrlProtocol> url_protocol_; | 334 std::unique_ptr<BlockingUrlProtocol> url_protocol_; |
331 std::unique_ptr<FFmpegGlue> glue_; | 335 std::unique_ptr<FFmpegGlue> glue_; |
332 | 336 |
333 const EncryptedMediaInitDataCB encrypted_media_init_data_cb_; | 337 const EncryptedMediaInitDataCB encrypted_media_init_data_cb_; |
334 | 338 |
335 const MediaTracksUpdatedCB media_tracks_updated_cb_; | 339 const MediaTracksUpdatedCB media_tracks_updated_cb_; |
336 | 340 |
| 341 std::map<MediaTrack::TrackId, const DemuxerStream*> |
| 342 track_id_to_demux_stream_map_; |
| 343 |
337 // NOTE: Weak pointers must be invalidated before all other member variables. | 344 // NOTE: Weak pointers must be invalidated before all other member variables. |
338 base::WeakPtrFactory<FFmpegDemuxer> weak_factory_; | 345 base::WeakPtrFactory<FFmpegDemuxer> weak_factory_; |
339 | 346 |
340 DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer); | 347 DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer); |
341 }; | 348 }; |
342 | 349 |
343 } // namespace media | 350 } // namespace media |
344 | 351 |
345 #endif // MEDIA_FILTERS_FFMPEG_DEMUXER_H_ | 352 #endif // MEDIA_FILTERS_FFMPEG_DEMUXER_H_ |
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