Add Opus decode wrapper to media.

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 "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/base/channel_layout.h"
@@ skipping 12 matching lines @@
   kCodecVorbis,
   // ChromiumOS and ChromeOS specific codecs.
   kCodecFLAC,
   // ChromeOS specific codecs.
   kCodecAMR_NB,
   kCodecAMR_WB,
   kCodecPCM_MULAW,
   kCodecGSM_MS,
   kCodecPCM_S16BE,
   kCodecPCM_S24BE,
+  // Additional codecs for all platforms.

[scherkus (not reviewing), 2012/12/14 21:13:34]

nit: this comment will likely become invalid at some point :)

can you remove this comment as well as the above "ChromiumOS" and "ChromeOS"
commnets?

[Tom Finegan, 2012/12/14 23:19:52]

Done.

+  kCodecOpus,
   // DO NOT ADD RANDOM AUDIO CODECS!
   //
   // The only acceptable time to add a new codec is if there is production code
   // that uses said codec in the same CL.
 
-  kAudioCodecMax = kCodecPCM_S24BE  // Must equal the last "real" codec above.
+  kAudioCodecMax = kCodecOpus  // Must equal the last "real" codec above.
 };
 
 // TODO(dalecurtis): FFmpeg API uses |bytes_per_channel| instead of
 // |bits_per_channel|, we should switch over since bits are generally confusing
 // to work with.
 class MEDIA_EXPORT AudioDecoderConfig {
  public:
   // Constructs an uninitialized object. Clients should call Initialize() with
   // appropriate values before using.
   AudioDecoderConfig();
@@ skipping 52 matching lines @@
   size_t extra_data_size_;
 
   bool is_encrypted_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioDecoderConfig);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_DECODER_CONFIG_H_