Cap sourceBuffered() on duration and truncate duration on EoS

media/filters/ffmpeg_demuxer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/filters/ffmpeg_demuxer.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 220 matching lines @@
   base::AutoLock auto_lock(lock_);
   DCHECK(stopped_);
   DCHECK(read_queue_.empty());
   DCHECK(buffer_queue_.empty());
 }
 
 base::TimeDelta FFmpegDemuxerStream::GetElapsedTime() const {
   return ConvertStreamTimestamp(stream_->time_base, stream_->cur_dts);
 }
 
-Ranges<base::TimeDelta> FFmpegDemuxerStream::GetBufferedRanges() {
+Ranges<base::TimeDelta> FFmpegDemuxerStream::GetBufferedRanges() const {
   base::AutoLock auto_lock(lock_);
   return buffered_ranges_;
 }
 
 // static
 base::TimeDelta FFmpegDemuxerStream::ConvertStreamTimestamp(
     const AVRational& time_base, int64 timestamp) {
   if (timestamp == static_cast<int64>(AV_NOPTS_VALUE))
     return kNoTimestamp();
 
@@ skipping 65 matching lines @@
 }
 
 void FFmpegDemuxer::Initialize(DemuxerHost* host,
                                const PipelineStatusCB& status_cb) {
   message_loop_->PostTask(FROM_HERE, base::Bind(
       &FFmpegDemuxer::InitializeTask, this, host, status_cb));
 }
 
 scoped_refptr<DemuxerStream> FFmpegDemuxer::GetStream(
     DemuxerStream::Type type) {
-  StreamVector::iterator iter;
+  return GetFFmpegStream(type);
+}
+
+scoped_refptr<FFmpegDemuxerStream> FFmpegDemuxer::GetFFmpegStream(
+    DemuxerStream::Type type) const {
+  StreamVector::const_iterator iter;
   for (iter = streams_.begin(); iter != streams_.end(); ++iter) {
     if (*iter && (*iter)->type() == type) {
       return *iter;
     }
   }
   return NULL;
 }
 
 base::TimeDelta FFmpegDemuxer::GetStartTime() const {
   return start_time_;
@@ skipping 373 matching lines @@
 }
 
 void FFmpegDemuxer::SignalReadCompleted(int size) {
   last_read_bytes_ = size;
   read_event_.Signal();
 }
 
 void FFmpegDemuxer::NotifyBufferingChanged() {
   DCHECK_EQ(MessageLoop::current(), message_loop_);
   Ranges<base::TimeDelta> buffered;
-  scoped_refptr<DemuxerStream> audio =
-      audio_disabled_ ? NULL : GetStream(DemuxerStream::AUDIO);
-  scoped_refptr<DemuxerStream> video = GetStream(DemuxerStream::VIDEO);
+  scoped_refptr<FFmpegDemuxerStream> audio =
+      audio_disabled_ ? NULL : GetFFmpegStream(DemuxerStream::AUDIO);
+  scoped_refptr<FFmpegDemuxerStream> video =
+      GetFFmpegStream(DemuxerStream::VIDEO);
   if (audio && video) {
     buffered = audio->GetBufferedRanges().IntersectionWith(
         video->GetBufferedRanges());
   } else if (audio) {
     buffered = audio->GetBufferedRanges();
   } else if (video) {
     buffered = video->GetBufferedRanges();
   }
   for (size_t i = 0; i < buffered.size(); ++i)
     host_->AddBufferedTimeRange(buffered.start(i), buffered.end(i));
 }
 
 }  // namespace media