Add support for midstream audio configuration changes.

media/filters/source_buffer_stream.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/source_buffer_stream.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/bind.h"
@@ skipping 1317 matching lines @@
 bool SourceBufferStream::UpdateAudioConfig(const AudioDecoderConfig& config) {
   DCHECK(!audio_configs_.empty());
   DCHECK(video_configs_.empty());
   DVLOG(3) << "UpdateAudioConfig.";
 
   if (audio_configs_[0].codec() != config.codec()) {
     MEDIA_LOG(log_cb_) << "Audio codec changes not allowed.";
     return false;
   }
 
-  if (audio_configs_[0].samples_per_second() != config.samples_per_second()) {
+  /*if (audio_configs_[0].samples_per_second() != config.samples_per_second()) {
     MEDIA_LOG(log_cb_) << "Audio sample rate changes not allowed.";
     return false;
   }
 
   if (audio_configs_[0].channel_layout() != config.channel_layout()) {
     MEDIA_LOG(log_cb_) << "Audio channel layout changes not allowed.";
     return false;
   }
 
   if (audio_configs_[0].bits_per_channel() != config.bits_per_channel()) {
     MEDIA_LOG(log_cb_) << "Audio bits per channel changes not allowed.";
     return false;
-  }
+  }*/
 
   if (audio_configs_[0].is_encrypted() != config.is_encrypted()) {
     MEDIA_LOG(log_cb_) << "Audio encryption changes not allowed.";
     return false;
   }
 
   // Check to see if the new config matches an existing one.
   for (size_t i = 0; i < audio_configs_.size(); ++i) {
     if (config.Matches(audio_configs_[i])) {
       append_config_index_ = i;
@@ skipping 718 matching lines @@
   return ComputeFudgeRoom(GetApproximateDuration());
 }
 
 base::TimeDelta SourceBufferRange::GetApproximateDuration() const {
   base::TimeDelta max_interbuffer_distance = interbuffer_distance_cb_.Run();
   DCHECK(max_interbuffer_distance != kNoTimestamp());
   return max_interbuffer_distance;
 }
 
 }  // namespace media