Index: media/formats/ac3/ac3_util.h |
diff --git a/media/formats/ac3/ac3_util.h b/media/formats/ac3/ac3_util.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3cd9dcd5e681e8a3dc7e9f5ea72841a8660799d9 |
--- /dev/null |
+++ b/media/formats/ac3/ac3_util.h |
@@ -0,0 +1,31 @@ |
+// Copyright 2016 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_FORMATS_AC3_AC3_UTIL_H_ |
+#define MEDIA_FORMATS_AC3_AC3_UTIL_H_ |
+ |
+#include <stddef.h> |
+#include <stdint.h> |
+ |
+#include "base/macros.h" |
+ |
+namespace media { |
+ |
+class Ac3Util { |
+ public: |
+ // Returns the total number of audio samples in the given buffer, which |
+ // contains several complete AC3 syncframes. |
+ static int ParseTotalAc3SampleCount(const uint8_t* data, size_t size); |
+ |
+ // Returns the total number of audio samples in the given buffer, which |
+ // contains several complete E-AC3 syncframes. |
+ static int ParseTotalEac3SampleCount(const uint8_t* data, size_t size); |
+ |
+ private: |
+ DISALLOW_COPY_AND_ASSIGN(Ac3Util); |
+}; |
+ |
+} // namespace media |
+ |
+#endif // MEDIA_FORMATS_AC3_AC3_UTIL_H_ |