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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 #include "media/filters/chunk_demuxer.h" | 5 #include "media/filters/chunk_demuxer.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/callback_helpers.h" | 8 #include "base/callback_helpers.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/message_loop.h" | 10 #include "base/message_loop.h" |
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192 void EndOfStream(); | 192 void EndOfStream(); |
193 bool CanEndOfStream() const; | 193 bool CanEndOfStream() const; |
194 void Shutdown(); | 194 void Shutdown(); |
195 | 195 |
196 // DemuxerStream methods. | 196 // DemuxerStream methods. |
197 virtual void Read(const ReadCB& read_cb) OVERRIDE; | 197 virtual void Read(const ReadCB& read_cb) OVERRIDE; |
198 virtual Type type() OVERRIDE; | 198 virtual Type type() OVERRIDE; |
199 virtual void EnableBitstreamConverter() OVERRIDE; | 199 virtual void EnableBitstreamConverter() OVERRIDE; |
200 virtual const AudioDecoderConfig& audio_decoder_config() OVERRIDE; | 200 virtual const AudioDecoderConfig& audio_decoder_config() OVERRIDE; |
201 virtual const VideoDecoderConfig& video_decoder_config() OVERRIDE; | 201 virtual const VideoDecoderConfig& video_decoder_config() OVERRIDE; |
202 virtual Ranges<TimeDelta> GetBufferedRanges() OVERRIDE; | 202 |
203 // Returns the range of buffered data in this stream, capped at |duration|. | |
204 Ranges<TimeDelta> GetBufferedRanges(base::TimeDelta duration) const; | |
acolwell GONE FROM CHROMIUM
2012/08/01 17:09:45
nit: perhaps move this just below Append() so it's
vrk (LEFT CHROMIUM)
2012/08/02 18:23:00
Done.
| |
203 | 205 |
204 protected: | 206 protected: |
205 virtual ~ChunkDemuxerStream(); | 207 virtual ~ChunkDemuxerStream(); |
206 | 208 |
207 private: | 209 private: |
208 enum State { | 210 enum State { |
209 RETURNING_DATA_FOR_READS, | 211 RETURNING_DATA_FOR_READS, |
210 WAITING_FOR_SEEK, | 212 WAITING_FOR_SEEK, |
211 SHUTDOWN, | 213 SHUTDOWN, |
212 }; | 214 }; |
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311 } | 313 } |
312 CreateReadDoneClosures_Locked(&closures); | 314 CreateReadDoneClosures_Locked(&closures); |
313 } | 315 } |
314 | 316 |
315 for (ClosureQueue::iterator it = closures.begin(); it != closures.end(); ++it) | 317 for (ClosureQueue::iterator it = closures.begin(); it != closures.end(); ++it) |
316 it->Run(); | 318 it->Run(); |
317 | 319 |
318 return true; | 320 return true; |
319 } | 321 } |
320 | 322 |
321 Ranges<TimeDelta> ChunkDemuxerStream::GetBufferedRanges() { | 323 Ranges<TimeDelta> ChunkDemuxerStream::GetBufferedRanges( |
324 base::TimeDelta duration) const { | |
322 base::AutoLock auto_lock(lock_); | 325 base::AutoLock auto_lock(lock_); |
323 return stream_->GetBufferedTime(); | 326 Ranges<TimeDelta> range = stream_->GetBufferedTime(); |
327 | |
328 Ranges<TimeDelta> valid_time_range; | |
329 valid_time_range.Add(base::TimeDelta(), duration); | |
acolwell GONE FROM CHROMIUM
2012/08/01 17:09:45
I think base::TimeDelta() needs to be start_time_
| |
330 return range.IntersectionWith(valid_time_range); | |
acolwell GONE FROM CHROMIUM
2012/08/01 17:09:45
\o/ look who's being tricky. I like it, but this d
vrk (LEFT CHROMIUM)
2012/08/02 18:23:00
haha glad you like! :) commented!
| |
324 } | 331 } |
325 | 332 |
326 bool ChunkDemuxerStream::UpdateAudioConfig(const AudioDecoderConfig& config) { | 333 bool ChunkDemuxerStream::UpdateAudioConfig(const AudioDecoderConfig& config) { |
327 DCHECK(config.IsValidConfig()); | 334 DCHECK(config.IsValidConfig()); |
328 DCHECK_EQ(type_, AUDIO); | 335 DCHECK_EQ(type_, AUDIO); |
329 return stream_->UpdateAudioConfig(config); | 336 return stream_->UpdateAudioConfig(config); |
330 } | 337 } |
331 | 338 |
332 bool ChunkDemuxerStream::UpdateVideoConfig(const VideoDecoderConfig& config) { | 339 bool ChunkDemuxerStream::UpdateVideoConfig(const VideoDecoderConfig& config) { |
333 DCHECK(config.IsValidConfig()); | 340 DCHECK(config.IsValidConfig()); |
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664 | 671 |
665 Ranges<TimeDelta> ChunkDemuxer::GetBufferedRanges(const std::string& id) const { | 672 Ranges<TimeDelta> ChunkDemuxer::GetBufferedRanges(const std::string& id) const { |
666 DCHECK(!id.empty()); | 673 DCHECK(!id.empty()); |
667 DCHECK(IsValidId(id)); | 674 DCHECK(IsValidId(id)); |
668 DCHECK(id == source_id_audio_ || id == source_id_video_); | 675 DCHECK(id == source_id_audio_ || id == source_id_video_); |
669 | 676 |
670 base::AutoLock auto_lock(lock_); | 677 base::AutoLock auto_lock(lock_); |
671 | 678 |
672 if (id == source_id_audio_ && id != source_id_video_) { | 679 if (id == source_id_audio_ && id != source_id_video_) { |
673 // Only include ranges that have been buffered in |audio_| | 680 // Only include ranges that have been buffered in |audio_| |
674 return audio_ ? audio_->GetBufferedRanges() : Ranges<TimeDelta>(); | 681 return audio_ ? audio_->GetBufferedRanges(duration_) : Ranges<TimeDelta>(); |
675 } | 682 } |
676 | 683 |
677 if (id != source_id_audio_ && id == source_id_video_) { | 684 if (id != source_id_audio_ && id == source_id_video_) { |
678 // Only include ranges that have been buffered in |video_| | 685 // Only include ranges that have been buffered in |video_| |
679 return video_ ? video_->GetBufferedRanges() : Ranges<TimeDelta>(); | 686 return video_ ? video_->GetBufferedRanges(duration_) : Ranges<TimeDelta>(); |
680 } | 687 } |
681 | 688 |
682 return ComputeIntersection(); | 689 return ComputeIntersection(); |
683 } | 690 } |
684 | 691 |
685 Ranges<TimeDelta> ChunkDemuxer::ComputeIntersection() const { | 692 Ranges<TimeDelta> ChunkDemuxer::ComputeIntersection() const { |
686 lock_.AssertAcquired(); | 693 lock_.AssertAcquired(); |
687 | 694 |
688 if (!audio_ || !video_) | 695 if (!audio_ || !video_) |
689 return Ranges<TimeDelta>(); | 696 return Ranges<TimeDelta>(); |
690 | 697 |
691 // Include ranges that have been buffered in both |audio_| and |video_|. | 698 // Include ranges that have been buffered in both |audio_| and |video_|. |
692 Ranges<TimeDelta> audio_ranges = audio_->GetBufferedRanges(); | 699 Ranges<TimeDelta> audio_ranges = audio_->GetBufferedRanges(duration_); |
693 Ranges<TimeDelta> video_ranges = video_->GetBufferedRanges(); | 700 Ranges<TimeDelta> video_ranges = video_->GetBufferedRanges(duration_); |
694 Ranges<TimeDelta> result = audio_ranges.IntersectionWith(video_ranges); | 701 Ranges<TimeDelta> result = audio_ranges.IntersectionWith(video_ranges); |
695 | 702 |
696 if (state_ == ENDED && result.size() > 0) { | 703 if (state_ == ENDED && result.size() > 0) { |
697 // If appending has ended, extend the last intersection range to include the | 704 // If appending has ended, extend the last intersection range to include the |
698 // max end time of the last audio/video range. This allows the buffered | 705 // max end time of the last audio/video range. This allows the buffered |
699 // information to match the actual time range that will get played out if | 706 // information to match the actual time range that will get played out if |
700 // the streams have slightly different lengths. | 707 // the streams have slightly different lengths. |
701 TimeDelta audio_start = audio_ranges.start(audio_ranges.size() - 1); | 708 TimeDelta audio_start = audio_ranges.start(audio_ranges.size() - 1); |
702 TimeDelta audio_end = audio_ranges.end(audio_ranges.size() - 1); | 709 TimeDelta audio_end = audio_ranges.end(audio_ranges.size() - 1); |
703 TimeDelta video_start = video_ranges.start(video_ranges.size() - 1); | 710 TimeDelta video_start = video_ranges.start(video_ranges.size() - 1); |
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756 DVLOG(1) << "AppendData(): called in unexpected state " << state_; | 763 DVLOG(1) << "AppendData(): called in unexpected state " << state_; |
757 return false; | 764 return false; |
758 } | 765 } |
759 | 766 |
760 // Check to see if data was appended at the pending seek point. This | 767 // Check to see if data was appended at the pending seek point. This |
761 // indicates we have parsed enough data to complete the seek. | 768 // indicates we have parsed enough data to complete the seek. |
762 if (old_seek_pending && !IsSeekPending_Locked() && !seek_cb_.is_null()) { | 769 if (old_seek_pending && !IsSeekPending_Locked() && !seek_cb_.is_null()) { |
763 std::swap(cb, seek_cb_); | 770 std::swap(cb, seek_cb_); |
764 } | 771 } |
765 | 772 |
766 if (audio_ && !video_) { | 773 ranges = GetBufferedRanges(); |
767 ranges = audio_->GetBufferedRanges(); | |
768 } else if (!audio_ && video_) { | |
769 ranges = video_->GetBufferedRanges(); | |
770 } else { | |
771 ranges = ComputeIntersection(); | |
772 } | |
773 } | 774 } |
774 | 775 |
775 for (size_t i = 0; i < ranges.size(); ++i) | 776 for (size_t i = 0; i < ranges.size(); ++i) |
776 host_->AddBufferedTimeRange(ranges.start(i), ranges.end(i)); | 777 host_->AddBufferedTimeRange(ranges.start(i), ranges.end(i)); |
777 | 778 |
778 if (!cb.is_null()) | 779 if (!cb.is_null()) |
779 cb.Run(PIPELINE_OK); | 780 cb.Run(PIPELINE_OK); |
780 | 781 |
781 return true; | 782 return true; |
782 } | 783 } |
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818 | 819 |
819 if (!CanEndOfStream_Locked() && status == PIPELINE_OK) | 820 if (!CanEndOfStream_Locked() && status == PIPELINE_OK) |
820 return false; | 821 return false; |
821 | 822 |
822 if (audio_) | 823 if (audio_) |
823 audio_->EndOfStream(); | 824 audio_->EndOfStream(); |
824 | 825 |
825 if (video_) | 826 if (video_) |
826 video_->EndOfStream(); | 827 video_->EndOfStream(); |
827 | 828 |
828 if (status != PIPELINE_OK) | 829 if (status != PIPELINE_OK) { |
829 ReportError_Locked(status); | 830 ReportError_Locked(status); |
830 else | 831 } else { |
831 ChangeState_Locked(ENDED); | 832 ChangeState_Locked(ENDED); |
833 DecreaseDurationIfNecessary(); | |
834 } | |
832 | 835 |
833 return true; | 836 return true; |
834 } | 837 } |
835 | 838 |
836 void ChunkDemuxer::Shutdown() { | 839 void ChunkDemuxer::Shutdown() { |
837 DVLOG(1) << "Shutdown()"; | 840 DVLOG(1) << "Shutdown()"; |
838 PipelineStatusCB cb; | 841 PipelineStatusCB cb; |
839 { | 842 { |
840 base::AutoLock auto_lock(lock_); | 843 base::AutoLock auto_lock(lock_); |
841 | 844 |
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1114 host_->SetDuration(new_duration); | 1117 host_->SetDuration(new_duration); |
1115 } | 1118 } |
1116 | 1119 |
1117 void ChunkDemuxer::IncreaseDurationIfNecessary( | 1120 void ChunkDemuxer::IncreaseDurationIfNecessary( |
1118 const StreamParser::BufferQueue& buffers, | 1121 const StreamParser::BufferQueue& buffers, |
1119 const scoped_refptr<ChunkDemuxerStream>& stream) { | 1122 const scoped_refptr<ChunkDemuxerStream>& stream) { |
1120 DCHECK(!buffers.empty()); | 1123 DCHECK(!buffers.empty()); |
1121 if (buffers.back()->GetTimestamp() <= duration_) | 1124 if (buffers.back()->GetTimestamp() <= duration_) |
1122 return; | 1125 return; |
1123 | 1126 |
1124 Ranges<TimeDelta> ranges = stream->GetBufferedRanges(); | 1127 Ranges<TimeDelta> ranges = stream->GetBufferedRanges(kInfiniteDuration()); |
1125 DCHECK_GT(ranges.size(), 0u); | 1128 DCHECK_GT(ranges.size(), 0u); |
1126 | 1129 |
1127 base::TimeDelta last_timestamp_buffered = ranges.end(ranges.size() - 1); | 1130 base::TimeDelta last_timestamp_buffered = ranges.end(ranges.size() - 1); |
1128 if (last_timestamp_buffered > duration_) | 1131 if (last_timestamp_buffered > duration_) |
1129 UpdateDuration(last_timestamp_buffered); | 1132 UpdateDuration(last_timestamp_buffered); |
1130 } | 1133 } |
1131 | 1134 |
1135 void ChunkDemuxer::DecreaseDurationIfNecessary() { | |
1136 Ranges<TimeDelta> ranges = GetBufferedRanges(); | |
1137 if (ranges.size() == 0u) | |
1138 return; | |
1139 | |
1140 base::TimeDelta last_timestamp_buffered = ranges.end(ranges.size() - 1); | |
1141 if (last_timestamp_buffered < duration_) | |
1142 UpdateDuration(last_timestamp_buffered); | |
1143 } | |
1144 | |
1145 Ranges<TimeDelta> ChunkDemuxer::GetBufferedRanges() const { | |
vrk (LEFT CHROMIUM)
2012/08/01 00:10:06
This CL adds this guy back again; if it's still ov
acolwell GONE FROM CHROMIUM
2012/08/01 17:09:45
No this is fine here. My original complaint was it
vrk (LEFT CHROMIUM)
2012/08/02 18:23:00
SG!
| |
1146 if (audio_ && !video_) | |
1147 return audio_->GetBufferedRanges(duration_); | |
1148 else if (!audio_ && video_) | |
1149 return video_->GetBufferedRanges(duration_); | |
1150 return ComputeIntersection(); | |
1151 } | |
1152 | |
1132 } // namespace media | 1153 } // namespace media |
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