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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 #ifndef MEDIA_FILTERS_CHUNK_DEMUXER_H_ | 5 #ifndef MEDIA_FILTERS_CHUNK_DEMUXER_H_ |
6 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_ | 6 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include <deque> | 11 #include <deque> |
12 #include <map> | 12 #include <map> |
13 #include <string> | 13 #include <string> |
14 #include <utility> | 14 #include <utility> |
15 #include <vector> | 15 #include <vector> |
16 | 16 |
17 #include "base/macros.h" | 17 #include "base/macros.h" |
18 #include "base/synchronization/lock.h" | 18 #include "base/synchronization/lock.h" |
19 #include "media/base/byte_queue.h" | 19 #include "media/base/byte_queue.h" |
20 #include "media/base/demuxer.h" | 20 #include "media/base/demuxer.h" |
21 #include "media/base/demuxer_stream.h" | 21 #include "media/base/demuxer_stream.h" |
| 22 #include "media/base/media_tracks.h" |
22 #include "media/base/ranges.h" | 23 #include "media/base/ranges.h" |
23 #include "media/base/stream_parser.h" | 24 #include "media/base/stream_parser.h" |
24 #include "media/filters/media_source_state.h" | 25 #include "media/filters/media_source_state.h" |
25 #include "media/filters/source_buffer_stream.h" | 26 #include "media/filters/source_buffer_stream.h" |
26 | 27 |
27 namespace media { | 28 namespace media { |
28 | 29 |
29 class FFmpegURLProtocol; | 30 class FFmpegURLProtocol; |
30 | 31 |
31 class MEDIA_EXPORT ChunkDemuxerStream : public DemuxerStream { | 32 class MEDIA_EXPORT ChunkDemuxerStream : public DemuxerStream { |
32 public: | 33 public: |
33 typedef std::deque<scoped_refptr<StreamParserBuffer> > BufferQueue; | 34 typedef std::deque<scoped_refptr<StreamParserBuffer> > BufferQueue; |
34 | 35 |
35 ChunkDemuxerStream(Type type, bool splice_frames_enabled); | 36 ChunkDemuxerStream(Type type, |
| 37 bool splice_frames_enabled, |
| 38 MediaTrack::Id media_track_id); |
36 ~ChunkDemuxerStream() override; | 39 ~ChunkDemuxerStream() override; |
37 | 40 |
38 // ChunkDemuxerStream control methods. | 41 // ChunkDemuxerStream control methods. |
39 void StartReturningData(); | 42 void StartReturningData(); |
40 void AbortReads(); | 43 void AbortReads(); |
41 void CompletePendingReadIfPossible(); | 44 void CompletePendingReadIfPossible(); |
42 void Shutdown(); | 45 void Shutdown(); |
43 | 46 |
44 // SourceBufferStream manipulation methods. | 47 // SourceBufferStream manipulation methods. |
45 void Seek(base::TimeDelta time); | 48 void Seek(base::TimeDelta time); |
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111 | 114 |
112 // Sets the memory limit, in bytes, on the SourceBufferStream. | 115 // Sets the memory limit, in bytes, on the SourceBufferStream. |
113 void SetStreamMemoryLimit(size_t memory_limit); | 116 void SetStreamMemoryLimit(size_t memory_limit); |
114 | 117 |
115 bool supports_partial_append_window_trimming() const { | 118 bool supports_partial_append_window_trimming() const { |
116 return partial_append_window_trimming_enabled_; | 119 return partial_append_window_trimming_enabled_; |
117 } | 120 } |
118 | 121 |
119 void SetLiveness(Liveness liveness); | 122 void SetLiveness(Liveness liveness); |
120 | 123 |
| 124 MediaTrack::Id media_track_id() const { return media_track_id_; } |
| 125 |
121 private: | 126 private: |
122 enum State { | 127 enum State { |
123 UNINITIALIZED, | 128 UNINITIALIZED, |
124 RETURNING_DATA_FOR_READS, | 129 RETURNING_DATA_FOR_READS, |
125 RETURNING_ABORT_FOR_READS, | 130 RETURNING_ABORT_FOR_READS, |
126 SHUTDOWN, | 131 SHUTDOWN, |
127 }; | 132 }; |
128 | 133 |
129 // Assigns |state_| to |state| | 134 // Assigns |state_| to |state| |
130 void ChangeState_Locked(State state); | 135 void ChangeState_Locked(State state); |
131 | 136 |
132 void CompletePendingReadIfPossible_Locked(); | 137 void CompletePendingReadIfPossible_Locked(); |
133 | 138 |
134 // Specifies the type of the stream. | 139 // Specifies the type of the stream. |
135 Type type_; | 140 Type type_; |
136 | 141 |
137 Liveness liveness_; | 142 Liveness liveness_; |
138 | 143 |
139 std::unique_ptr<SourceBufferStream> stream_; | 144 std::unique_ptr<SourceBufferStream> stream_; |
140 | 145 |
| 146 const MediaTrack::Id media_track_id_; |
| 147 |
141 mutable base::Lock lock_; | 148 mutable base::Lock lock_; |
142 State state_; | 149 State state_; |
143 ReadCB read_cb_; | 150 ReadCB read_cb_; |
144 bool splice_frames_enabled_; | 151 bool splice_frames_enabled_; |
145 bool partial_append_window_trimming_enabled_; | 152 bool partial_append_window_trimming_enabled_; |
146 | 153 |
147 DISALLOW_IMPLICIT_CONSTRUCTORS(ChunkDemuxerStream); | 154 DISALLOW_IMPLICIT_CONSTRUCTORS(ChunkDemuxerStream); |
148 }; | 155 }; |
149 | 156 |
150 // Demuxer implementation that allows chunks of media data to be passed | 157 // Demuxer implementation that allows chunks of media data to be passed |
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348 | 355 |
349 // Aborts pending reads on all DemuxerStreams. | 356 // Aborts pending reads on all DemuxerStreams. |
350 void AbortPendingReads(); | 357 void AbortPendingReads(); |
351 | 358 |
352 // Completes any pending reads if it is possible to do so. | 359 // Completes any pending reads if it is possible to do so. |
353 void CompletePendingReadsIfPossible(); | 360 void CompletePendingReadsIfPossible(); |
354 | 361 |
355 // Seeks all SourceBufferStreams to |seek_time|. | 362 // Seeks all SourceBufferStreams to |seek_time|. |
356 void SeekAllSources(base::TimeDelta seek_time); | 363 void SeekAllSources(base::TimeDelta seek_time); |
357 | 364 |
| 365 // Generates and returns a unique media track id. |
| 366 static MediaTrack::Id GenerateMediaTrackId(); |
| 367 |
358 // Shuts down all DemuxerStreams by calling Shutdown() on | 368 // Shuts down all DemuxerStreams by calling Shutdown() on |
359 // all objects in |source_state_map_|. | 369 // all objects in |source_state_map_|. |
360 void ShutdownAllStreams(); | 370 void ShutdownAllStreams(); |
361 | 371 |
362 mutable base::Lock lock_; | 372 mutable base::Lock lock_; |
363 State state_; | 373 State state_; |
364 bool cancel_next_seek_; | 374 bool cancel_next_seek_; |
365 | 375 |
366 DemuxerHost* host_; | 376 DemuxerHost* host_; |
367 base::Closure open_cb_; | 377 base::Closure open_cb_; |
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413 int detected_audio_track_count_; | 423 int detected_audio_track_count_; |
414 int detected_video_track_count_; | 424 int detected_video_track_count_; |
415 int detected_text_track_count_; | 425 int detected_text_track_count_; |
416 | 426 |
417 DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer); | 427 DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer); |
418 }; | 428 }; |
419 | 429 |
420 } // namespace media | 430 } // namespace media |
421 | 431 |
422 #endif // MEDIA_FILTERS_CHUNK_DEMUXER_H_ | 432 #endif // MEDIA_FILTERS_CHUNK_DEMUXER_H_ |
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