Move media::AudioCodec to its own source file

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 "media/base/limits.h"
 
 namespace media {
 
-// These names come from src/third_party/ffmpeg/libavcodec/codec_desc.c
-std::string GetCodecName(AudioCodec codec) {
-  switch (codec) {
-    case kUnknownAudioCodec:
-      return "unknown";
-    case kCodecAAC:
-      return "aac";
-    case kCodecMP3:
-      return "mp3";
-    case kCodecPCM:
-    case kCodecPCM_S16BE:
-    case kCodecPCM_S24BE:
-      return "pcm";
-    case kCodecVorbis:
-      return "vorbis";
-    case kCodecFLAC:
-      return "flac";
-    case kCodecAMR_NB:
-      return "amr_nb";
-    case kCodecAMR_WB:
-      return "amr_wb";
-    case kCodecPCM_MULAW:
-      return "pcm_mulaw";
-    case kCodecGSM_MS:
-      return "gsm_ms";
-    case kCodecOpus:
-      return "opus";
-    case kCodecPCM_ALAW:
-      return "pcm_alaw";
-    case kCodecEAC3:
-      return "eac3";
-    case kCodecALAC:
-      return "alac";
-    case kCodecAC3:
-      return "ac3";
-  }
-  NOTREACHED();
-  return "";
-}
-
 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),
       codec_delay_(0) {
 }
@@ skipping 65 matching lines @@
     << " sample_format: " << sample_format()
     << " bytes_per_frame: " << bytes_per_frame()
     << " seek_preroll: " << seek_preroll().InMilliseconds() << "ms"
     << " codec_delay: " << codec_delay() << " has extra data? "
     << (extra_data().empty() ? "false" : "true") << " encrypted? "
     << (is_encrypted() ? "true" : "false");
   return s.str();
 }
 
 }  // namespace media