Implement ISO BMFF support in Media Source.

media/mp4/cenc.h

Index: media/mp4/cenc.h
diff --git a/media/mp4/cenc.h b/media/mp4/cenc.h
new file mode 100644
index 0000000000000000000000000000000000000000..49c3e374acb369e0060470385375d33eed941439
--- /dev/null
+++ b/media/mp4/cenc.h
@@ -0,0 +1,34 @@
+// 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_CENC_H_
+#define MEDIA_MP4_CENC_H_
+
+#include "base/basictypes.h"
+#include <vector>

[acolwell GONE FROM CHROMIUM, 2012/06/06 17:32:39]

include order

[strobe_, 2012/06/07 16:33:54]

Done.

+
+namespace media {
+namespace mp4 {
+
+struct SubsampleSizes {
+  uint16 clear_size;
+  uint32 encrypted_size;
+};
+
+struct FrameCENCInfo {
+  std::vector<uint8> iv;
+  std::vector<SubsampleSizes> subsamples;
+
+  FrameCENCInfo();
+  ~FrameCENCInfo();
+  size_t GetTotalSize() const;
+};
+
+class BufferReader;
+bool Parse(size_t iv_size, FrameCENCInfo* cenc, BufferReader* r);
+
+}  // namespace mp4
+}  // namespace media
+
+#endif  // MEDIA_MP4_CENC_H_