Add HE AAC support to ISO BMFF.

media/mp4/avc.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/mp4/avc.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "media/mp4/box_definitions.h"
@@ skipping 70 matching lines @@
     temp.insert(temp.end(), kAnnexBStartCode,
                 kAnnexBStartCode + kAnnexBStartCodeSize);
     temp.insert(temp.end(), avc_config.pps_list[i].begin(),
                 avc_config.pps_list[i].end());
   }
 
   buffer->insert(buffer->begin(), temp.begin(), temp.end());
   return true;
 }
 
-// static
-ChannelLayout AVC::ConvertAACChannelCountToChannelLayout(int count) {
-  switch (count) {
-    case 1:
-      return CHANNEL_LAYOUT_MONO;
-    case 2:
-      return CHANNEL_LAYOUT_STEREO;
-    case 3:
-      return CHANNEL_LAYOUT_SURROUND;
-    case 4:
-      return CHANNEL_LAYOUT_4_0;
-    case 5:
-      return CHANNEL_LAYOUT_5_0;
-    case 6:
-      return CHANNEL_LAYOUT_5_1;
-    case 8:
-      return CHANNEL_LAYOUT_7_1;
-    default:
-      return CHANNEL_LAYOUT_UNSUPPORTED;
-  }
-}
-
 }  // namespace mp4
 }  // namespace media