Extradata is appended at the end of each output buffer in non secure video use case but in secure video playback, the client/CPU don't have access to the output buffer to parse the extradata. This change allows the client/CPU to parse the extradata by allocating separate buffers for video hardware to store extradata. Change-Id: I12927ea3d142b9cecd6fb1ae1086c5624d0e08d6 Signed-off-by: Deepak Verma <dverma@codeaurora.org>