media: Opus support for WebM in Media Source

media/base/audio_decoder_config.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/base/audio_decoder_config.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "media/audio/sample_rates.h"
 #include "media/base/limits.h"
 #include "media/base/sample_format.h"
 
 namespace media {
 
 AudioDecoderConfig::AudioDecoderConfig()
     : codec_(kUnknownAudioCodec),
       sample_format_(kUnknownSampleFormat),
       bytes_per_channel_(0),
       channel_layout_(CHANNEL_LAYOUT_UNSUPPORTED),
       samples_per_second_(0),
       bytes_per_frame_(0),
-      is_encrypted_(false) {
+      is_encrypted_(false),
+      seek_pre_roll_(0),
+      codec_delay_(0) {
 }
 
 AudioDecoderConfig::AudioDecoderConfig(AudioCodec codec,
                                        SampleFormat sample_format,
                                        ChannelLayout channel_layout,
                                        int samples_per_second,
                                        const uint8* extra_data,
                                        size_t extra_data_size,
                                        bool is_encrypted) {
   Initialize(codec, sample_format, channel_layout, samples_per_second,
@@ skipping 52 matching lines @@
 
 bool AudioDecoderConfig::Matches(const AudioDecoderConfig& config) const {
   return ((codec() == config.codec()) &&
           (bytes_per_channel() == config.bytes_per_channel()) &&
           (channel_layout() == config.channel_layout()) &&
           (samples_per_second() == config.samples_per_second()) &&
           (extra_data_size() == config.extra_data_size()) &&
           (!extra_data() || !memcmp(extra_data(), config.extra_data(),
                                     extra_data_size())) &&
           (is_encrypted() == config.is_encrypted()) &&
-          (sample_format() == config.sample_format()));
+          (sample_format() == config.sample_format()) &&
+          (seek_pre_roll() == config.seek_pre_roll()) &&
+          (codec_delay() == config.codec_delay()));
 }
 
 }  // namespace media