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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 <deque> | 8 #include <deque> |
9 #include <map> | 9 #include <map> |
10 #include <string> | 10 #include <string> |
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140 enum Status { | 140 enum Status { |
141 kOk, // ID added w/o error. | 141 kOk, // ID added w/o error. |
142 kNotSupported, // Type specified is not supported. | 142 kNotSupported, // Type specified is not supported. |
143 kReachedIdLimit, // Reached ID limit. We can't handle any more IDs. | 143 kReachedIdLimit, // Reached ID limit. We can't handle any more IDs. |
144 }; | 144 }; |
145 | 145 |
146 typedef base::Closure InitSegmentReceivedCB; | 146 typedef base::Closure InitSegmentReceivedCB; |
147 | 147 |
148 // |open_cb| Run when Initialize() is called to signal that the demuxer | 148 // |open_cb| Run when Initialize() is called to signal that the demuxer |
149 // is ready to receive media data via AppenData(). | 149 // is ready to receive media data via AppenData(). |
150 // |need_key_cb| Run when the demuxer determines that an encryption key is | 150 // |encrypted_media_init_data_cb| Run when the demuxer determines that an |
151 // needed to decrypt the content. | 151 // encryption key is needed to decrypt the content. |
152 // |enable_text| Process inband text tracks in the normal way when true, | 152 // |enable_text| Process inband text tracks in the normal way when true, |
153 // otherwise ignore them. | 153 // otherwise ignore them. |
154 // |log_cb| Run when parsing error messages need to be logged to the error | 154 // |log_cb| Run when parsing error messages need to be logged to the error |
155 // console. | 155 // console. |
156 // |splice_frames_enabled| Indicates that it's okay to generate splice frames | 156 // |splice_frames_enabled| Indicates that it's okay to generate splice frames |
157 // per the MSE specification. Renderers must understand DecoderBuffer's | 157 // per the MSE specification. Renderers must understand DecoderBuffer's |
158 // splice_timestamp() field. | 158 // splice_timestamp() field. |
159 ChunkDemuxer(const base::Closure& open_cb, | 159 ChunkDemuxer(const base::Closure& open_cb, |
160 const NeedKeyCB& need_key_cb, | 160 const EncryptedMediaInitDataCB& encrypted_media_init_data_cb, |
161 const LogCB& log_cb, | 161 const LogCB& log_cb, |
162 const scoped_refptr<MediaLog>& media_log, | 162 const scoped_refptr<MediaLog>& media_log, |
163 bool splice_frames_enabled); | 163 bool splice_frames_enabled); |
164 ~ChunkDemuxer() override; | 164 ~ChunkDemuxer() override; |
165 | 165 |
166 // Demuxer implementation. | 166 // Demuxer implementation. |
167 void Initialize(DemuxerHost* host, | 167 void Initialize(DemuxerHost* host, |
168 const PipelineStatusCB& cb, | 168 const PipelineStatusCB& cb, |
169 bool enable_text_tracks) override; | 169 bool enable_text_tracks) override; |
170 void Stop() override; | 170 void Stop() override; |
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352 // Shuts down all DemuxerStreams by calling Shutdown() on | 352 // Shuts down all DemuxerStreams by calling Shutdown() on |
353 // all objects in |source_state_map_|. | 353 // all objects in |source_state_map_|. |
354 void ShutdownAllStreams(); | 354 void ShutdownAllStreams(); |
355 | 355 |
356 mutable base::Lock lock_; | 356 mutable base::Lock lock_; |
357 State state_; | 357 State state_; |
358 bool cancel_next_seek_; | 358 bool cancel_next_seek_; |
359 | 359 |
360 DemuxerHost* host_; | 360 DemuxerHost* host_; |
361 base::Closure open_cb_; | 361 base::Closure open_cb_; |
362 NeedKeyCB need_key_cb_; | 362 EncryptedMediaInitDataCB encrypted_media_init_data_cb_; |
363 bool enable_text_; | 363 bool enable_text_; |
364 // Callback used to report error strings that can help the web developer | 364 // Callback used to report error strings that can help the web developer |
365 // figure out what is wrong with the content. | 365 // figure out what is wrong with the content. |
366 LogCB log_cb_; | 366 LogCB log_cb_; |
367 scoped_refptr<MediaLog> media_log_; | 367 scoped_refptr<MediaLog> media_log_; |
368 | 368 |
369 PipelineStatusCB init_cb_; | 369 PipelineStatusCB init_cb_; |
370 // Callback to execute upon seek completion. | 370 // Callback to execute upon seek completion. |
371 // TODO(wolenetz/acolwell): Protect against possible double-locking by first | 371 // TODO(wolenetz/acolwell): Protect against possible double-locking by first |
372 // releasing |lock_| before executing this callback. See | 372 // releasing |lock_| before executing this callback. See |
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399 | 399 |
400 // Indicates that splice frame generation is enabled. | 400 // Indicates that splice frame generation is enabled. |
401 const bool splice_frames_enabled_; | 401 const bool splice_frames_enabled_; |
402 | 402 |
403 DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer); | 403 DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer); |
404 }; | 404 }; |
405 | 405 |
406 } // namespace media | 406 } // namespace media |
407 | 407 |
408 #endif // MEDIA_FILTERS_CHUNK_DEMUXER_H_ | 408 #endif // MEDIA_FILTERS_CHUNK_DEMUXER_H_ |
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