Adding ChunkDemuxer implementation.

webkit/glue/media/audio_decoder.cc

 // Copyright (c) 2010 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 "webkit/glue/media/audio_decoder.h"
 
 #include <vector>
 #include "base/basictypes.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "media/filters/audio_file_reader.h"
+#include "media/filters/in_memory_url_protocol.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebAudioBus.h"
 
 using media::AudioFileReader;
-using media::InMemoryDataReader;
+using media::InMemoryUrlProtocol;
 using std::vector;
 using WebKit::WebAudioBus;
 
 namespace webkit_glue {
 
 // Decode in-memory audio file data.
 bool DecodeAudioFileData(
     WebKit::WebAudioBus* destination_bus,
     const char* data, size_t data_size, double sample_rate) {
   DCHECK(destination_bus);
   if (!destination_bus)
     return false;
 
   // Uses the FFmpeg library for audio file reading.
-  InMemoryDataReader data_reader(data, data_size);
-  AudioFileReader reader(&data_reader);
+  InMemoryUrlProtocol url_protocol(reinterpret_cast<const uint8*>(data),
+                                   data_size, false);
+  AudioFileReader reader(&url_protocol);
 
   if (!reader.Open())
     return false;
 
   size_t number_of_channels = reader.channels();
   double file_sample_rate = reader.sample_rate();
   double duration = reader.duration().InSecondsF();
   size_t number_of_frames = static_cast<size_t>(reader.number_of_frames());
 
   // TODO(crogers) : do sample-rate conversion with FFmpeg.
@@ skipping 25 matching lines @@
   audio_data.reserve(number_of_channels);
   for (size_t i = 0; i < number_of_channels; ++i) {
     audio_data.push_back(destination_bus->channelData(i));
   }
 
   // Decode the audio file data.
   return reader.Read(audio_data, number_of_frames);
 }
 
 }  // namespace webkit_glue