Add support for avc3 codec string.

media/mp4/box_definitions.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/box_definitions.h"
 
 #include "base/logging.h"
 #include "media/mp4/es_descriptor.h"
 #include "media/mp4/rcheck.h"
 
@@ skipping 381 matching lines @@
 
   if (format == FOURCC_ENCV) {
     // Continue scanning until a recognized protection scheme is found, or until
     // we run out of protection schemes.
     while (sinf.type.type != FOURCC_CENC) {
       if (!reader->ReadChild(&sinf))
         return false;
     }
   }
 
-  if (format == FOURCC_AVC1 ||
-      (format == FOURCC_ENCV && sinf.format.format == FOURCC_AVC1)) {
+  if (IsFormatValid())
     RCHECK(reader->ReadChild(&avcc));
-  }
+
   return true;
 }
 
+bool VideoSampleEntry::IsFormatValid() const {
+  return format == FOURCC_AVC1 || format == FOURCC_AVC3 ||
+      (format == FOURCC_ENCV && (sinf.format.format == FOURCC_AVC1 ||
+                                 sinf.format.format == FOURCC_AVC3));
+}
+
 ElementaryStreamDescriptor::ElementaryStreamDescriptor()
     : object_type(kForbidden) {}
 
 ElementaryStreamDescriptor::~ElementaryStreamDescriptor() {}
 
 FourCC ElementaryStreamDescriptor::BoxType() const {
   return FOURCC_ESDS;
 }
 
 bool ElementaryStreamDescriptor::Parse(BoxReader* reader) {
@@ skipping 329 matching lines @@
 bool MovieFragment::Parse(BoxReader* reader) {
   RCHECK(reader->ScanChildren() &&
          reader->ReadChild(&header) &&
          reader->ReadChildren(&tracks) &&
          reader->MaybeReadChildren(&pssh));
   return true;
 }
 
 }  // namespace mp4
 }  // namespace media