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Side by Side Diff: media/filters/ffmpeg_demuxer.cc

Issue 8294027: Merge r104540 into 874 (m15). (Closed) Base URL: svn://svn.chromium.org/chrome/branches/874/src/
Patch Set: '' Created 9 years, 2 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 "base/callback.h" 5 #include "base/callback.h"
6 #include "base/command_line.h" 6 #include "base/command_line.h"
7 #include "base/memory/scoped_ptr.h" 7 #include "base/memory/scoped_ptr.h"
8 #include "base/message_loop.h" 8 #include "base/message_loop.h"
9 #include "base/stl_util.h" 9 #include "base/stl_util.h"
10 #include "base/string_util.h" 10 #include "base/string_util.h"
11 #include "base/time.h" 11 #include "base/time.h"
12 #include "media/base/data_buffer.h"
12 #include "media/base/filter_host.h" 13 #include "media/base/filter_host.h"
13 #include "media/base/limits.h" 14 #include "media/base/limits.h"
14 #include "media/base/media_switches.h" 15 #include "media/base/media_switches.h"
15 #include "media/ffmpeg/ffmpeg_common.h" 16 #include "media/ffmpeg/ffmpeg_common.h"
16 #include "media/filters/bitstream_converter.h" 17 #include "media/filters/bitstream_converter.h"
17 #include "media/filters/ffmpeg_demuxer.h" 18 #include "media/filters/ffmpeg_demuxer.h"
18 #include "media/filters/ffmpeg_glue.h" 19 #include "media/filters/ffmpeg_glue.h"
19 #include "media/filters/ffmpeg_h264_bitstream_converter.h" 20 #include "media/filters/ffmpeg_h264_bitstream_converter.h"
20 21
21 namespace media { 22 namespace media {
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130 DCHECK_EQ(MessageLoop::current(), demuxer_->message_loop()); 131 DCHECK_EQ(MessageLoop::current(), demuxer_->message_loop());
131 base::AutoLock auto_lock(lock_); 132 base::AutoLock auto_lock(lock_);
132 DCHECK(read_queue_.empty()) << "Read requests should be empty"; 133 DCHECK(read_queue_.empty()) << "Read requests should be empty";
133 buffer_queue_.clear(); 134 buffer_queue_.clear();
134 } 135 }
135 136
136 void FFmpegDemuxerStream::Stop() { 137 void FFmpegDemuxerStream::Stop() {
137 DCHECK_EQ(MessageLoop::current(), demuxer_->message_loop()); 138 DCHECK_EQ(MessageLoop::current(), demuxer_->message_loop());
138 base::AutoLock auto_lock(lock_); 139 base::AutoLock auto_lock(lock_);
139 buffer_queue_.clear(); 140 buffer_queue_.clear();
141 for (ReadQueue::iterator it = read_queue_.begin();
142 it != read_queue_.end(); ++it) {
143 it->Run(new DataBuffer(0));
144 }
140 read_queue_.clear(); 145 read_queue_.clear();
141 stopped_ = true; 146 stopped_ = true;
142 } 147 }
143 148
144 base::TimeDelta FFmpegDemuxerStream::duration() { 149 base::TimeDelta FFmpegDemuxerStream::duration() {
145 return duration_; 150 return duration_;
146 } 151 }
147 152
148 DemuxerStream::Type FFmpegDemuxerStream::type() { 153 DemuxerStream::Type FFmpegDemuxerStream::type() {
149 return type_; 154 return type_;
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464 base::TimeDelta max_duration; 469 base::TimeDelta max_duration;
465 const bool kDemuxerIsWebm = !strcmp("webm", format_context_->iformat->name); 470 const bool kDemuxerIsWebm = !strcmp("webm", format_context_->iformat->name);
466 bool no_supported_streams = true; 471 bool no_supported_streams = true;
467 for (size_t i = 0; i < format_context_->nb_streams; ++i) { 472 for (size_t i = 0; i < format_context_->nb_streams; ++i) {
468 AVCodecContext* codec_context = format_context_->streams[i]->codec; 473 AVCodecContext* codec_context = format_context_->streams[i]->codec;
469 AVMediaType codec_type = codec_context->codec_type; 474 AVMediaType codec_type = codec_context->codec_type;
470 if (codec_type == AVMEDIA_TYPE_AUDIO || codec_type == AVMEDIA_TYPE_VIDEO) { 475 if (codec_type == AVMEDIA_TYPE_AUDIO || codec_type == AVMEDIA_TYPE_VIDEO) {
471 AVStream* stream = format_context_->streams[i]; 476 AVStream* stream = format_context_->streams[i];
472 // WebM is currently strictly VP8 and Vorbis. 477 // WebM is currently strictly VP8 and Vorbis.
473 if (kDemuxerIsWebm && (stream->codec->codec_id != CODEC_ID_VP8 && 478 if (kDemuxerIsWebm && (stream->codec->codec_id != CODEC_ID_VP8 &&
474 stream->codec->codec_id != CODEC_ID_VORBIS)) { 479 stream->codec->codec_id != CODEC_ID_VORBIS)) {
475 packet_streams_.push_back(NULL); 480 packet_streams_.push_back(NULL);
476 continue; 481 continue;
477 } 482 }
478 483
479 scoped_refptr<FFmpegDemuxerStream> demuxer_stream( 484 scoped_refptr<FFmpegDemuxerStream> demuxer_stream(
480 new FFmpegDemuxerStream(this, stream)); 485 new FFmpegDemuxerStream(this, stream));
481 if (!streams_[demuxer_stream->type()]) { 486 if (!streams_[demuxer_stream->type()]) {
482 no_supported_streams = false; 487 no_supported_streams = false;
483 streams_[demuxer_stream->type()] = demuxer_stream; 488 streams_[demuxer_stream->type()] = demuxer_stream;
484 max_duration = std::max(max_duration, demuxer_stream->duration()); 489 max_duration = std::max(max_duration, demuxer_stream->duration());
485 490
486 if (stream->first_dts != static_cast<int64_t>(AV_NOPTS_VALUE)) { 491 if (stream->first_dts != static_cast<int64_t>(AV_NOPTS_VALUE)) {
487 const base::TimeDelta first_dts = ConvertFromTimeBase( 492 const base::TimeDelta first_dts = ConvertFromTimeBase(
488 stream->time_base, stream->first_dts); 493 stream->time_base, stream->first_dts);
489 if (start_time_ == kNoTimestamp || first_dts < start_time_) 494 if (start_time_ == kNoTimestamp || first_dts < start_time_)
490 start_time_ = first_dts; 495 start_time_ = first_dts;
491 } 496 }
492 } 497 }
493 packet_streams_.push_back(demuxer_stream); 498 packet_streams_.push_back(demuxer_stream);
494 } else { 499 } else {
495 packet_streams_.push_back(NULL); 500 packet_streams_.push_back(NULL);
496 } 501 }
497 } 502 }
498 if (no_supported_streams) { 503 if (no_supported_streams) {
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679 read_event_.Wait(); 684 read_event_.Wait();
680 return last_read_bytes_; 685 return last_read_bytes_;
681 } 686 }
682 687
683 void FFmpegDemuxer::SignalReadCompleted(size_t size) { 688 void FFmpegDemuxer::SignalReadCompleted(size_t size) {
684 last_read_bytes_ = size; 689 last_read_bytes_ = size;
685 read_event_.Signal(); 690 read_event_.Signal();
686 } 691 }
687 692
688 } // namespace media 693 } // namespace media
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