Implement ISO BMFF support in Media Source.

media/mp4/avc.h

Index: media/mp4/avc.h
diff --git a/media/mp4/avc.h b/media/mp4/avc.h
new file mode 100644
index 0000000000000000000000000000000000000000..8fe01fb8ea0c33202805bebf0386b1ec47d26f40
--- /dev/null
+++ b/media/mp4/avc.h
@@ -0,0 +1,23 @@
+// 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_MP4_AVC_H_
+#define MEDIA_MP4_AVC_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "media/base/channel_layout.h"
+
+namespace media {
+namespace mp4 {
+
+bool ConvertAVCCToAnnexB(int length_size, std::vector<uint8>* buffer);
+
+ChannelLayout ConvertAACChannelCountToChannelLayout(int count);
+
+}  // namespace mp4
+}  // namespace media
+
+#endif  // MEDIA_MP4_AVC_H_