Enable pcm_s32le audio decoding.

media/cast/test/fake_media_source.cc

 // Copyright 2014 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/cast/test/fake_media_source.h"
 
 #include "base/bind.h"
 #include "base/files/scoped_file.h"
 #include "base/logging.h"
 #include "base/rand_util.h"
@@ skipping 452 matching lines @@
       // This is set to the frequency we send to the receiver.
       // Not the frequency of the source file. This is because we
       // increment the frame count by samples we sent.
       audio_sent_ts_.reset(
           new AudioTimestampHelper(output_audio_params_.sample_rate()));
       // For some files this is an invalid value.
       base::TimeDelta base_ts;
       audio_sent_ts_->SetBaseTimestamp(base_ts);
     }
 
-    scoped_refptr<AudioBuffer> buffer =
-        AudioBuffer::CopyFrom(
-            AVSampleFormatToSampleFormat(
-                av_audio_context()->sample_fmt),
-            ChannelLayoutToChromeChannelLayout(
-                av_audio_context()->channel_layout,
-                av_audio_context()->channels),
-            av_audio_context()->channels,
-            av_audio_context()->sample_rate,
-            frames_read,
-            &avframe->data[0],
-            PtsToTimeDelta(avframe->pkt_pts, av_audio_stream()->time_base));
+    scoped_refptr<AudioBuffer> buffer = AudioBuffer::CopyFrom(
+        AVSampleFormatToSampleFormat(av_audio_context()->sample_fmt,
+                                     av_audio_context()->codec_id),
+        ChannelLayoutToChromeChannelLayout(av_audio_context()->channel_layout,
+                                           av_audio_context()->channels),
+        av_audio_context()->channels, av_audio_context()->sample_rate,
+        frames_read, &avframe->data[0],
+        PtsToTimeDelta(avframe->pkt_pts, av_audio_stream()->time_base));
     audio_algo_.EnqueueBuffer(buffer);
     av_frame_unref(avframe);
   } while (packet_temp.size > 0);
   av_frame_free(&avframe);
 
   const int frames_needed_to_scale =
       playback_rate_ * av_audio_context()->sample_rate /
       kAudioPacketsPerSecond;
   while (frames_needed_to_scale <= audio_algo_.frames_buffered()) {
     if (!audio_algo_.FillBuffer(audio_fifo_input_bus_.get(), 0,
@@ skipping 118 matching lines @@
 AVCodecContext* FakeMediaSource::av_audio_context() {
   return av_audio_stream()->codec;
 }
 
 AVCodecContext* FakeMediaSource::av_video_context() {
   return av_video_stream()->codec;
 }
 
 }  // namespace cast
 }  // namespace media