media: Opus support for WebM in Media Source

media/base/audio_decoder_config.h

 // 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.
 
 #ifndef MEDIA_BASE_AUDIO_DECODER_CONFIG_H_
 #define MEDIA_BASE_AUDIO_DECODER_CONFIG_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 62 matching lines @@
   // Note: The contents of |extra_data_| are compared not the raw pointers.
   bool Matches(const AudioDecoderConfig& config) const;
 
   AudioCodec codec() const { return codec_; }
   int bits_per_channel() const { return bytes_per_channel_ * 8; }
   int bytes_per_channel() const { return bytes_per_channel_; }
   ChannelLayout channel_layout() const { return channel_layout_; }
   int samples_per_second() const { return samples_per_second_; }
   SampleFormat sample_format() const { return sample_format_; }
   int bytes_per_frame() const { return bytes_per_frame_; }
+  int64 seek_pre_roll() const { return seek_pre_roll_; }
+  void set_seek_pre_roll(int64 seek_pre_roll) {
+    seek_pre_roll_ = seek_pre_roll;
+  }
+  int64 codec_delay() const { return codec_delay_; }
+  void set_codec_delay(int64 codec_delay) { codec_delay_ = codec_delay; }
 
   // Optional byte data required to initialize audio decoders such as Vorbis
   // codebooks.
   const uint8* extra_data() const {
     return extra_data_.empty() ? NULL : &extra_data_[0];
   }
   size_t extra_data_size() const { return extra_data_.size(); }
 
   // Whether the audio stream is potentially encrypted.
   // Note that in a potentially encrypted audio stream, individual buffers
   // can be encrypted or not encrypted.
   bool is_encrypted() const { return is_encrypted_; }
 
  private:
   AudioCodec codec_;
   SampleFormat sample_format_;
   int bytes_per_channel_;
   ChannelLayout channel_layout_;
   int samples_per_second_;
   int bytes_per_frame_;
   std::vector<uint8> extra_data_;
   bool is_encrypted_;
+  int64 seek_pre_roll_;
+  int64 codec_delay_;

[fgalligan1, 2013/08/26 21:10:06]

I think you need to add comments about what these members are, what are their
units,...

[vignesh, 2013/08/26 21:44:23]

Done.

 
   // Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler
   // generated copy constructor and assignment operator. Since the extra data is
   // typically small, the performance impact is minimal.
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_DECODER_CONFIG_H_