[FFmpeg-devel] PATCH AC3 audio issue is Fixed for Blu-ray Players.

kifayat ullah kifayat.ullah at yahoo.com
Fri Jul 20 14:41:52 CEST 2012

Hello All,

Please find the attached PATCH.

	* Target
	* M2TS files for BDMV ( blu-ray Disc)
	* Issue
	* M2TS files have AC3 audio stream was not not playing sounds on certain blu-ray players.
	* The tests has been performed on Software player like Power DVD 10,11 etc and Hardware Player like SONY Playstation.
	* Stream Analysis shows that audio stream packets (PID = 0x1100) are there is 
M2TS audio stream, PTS were Same as of thier crossponding Video packets, so while testing on Directshow filtergraph there was no lip sync 

	* Audio Issue has been observe only when an ISO 
composed of BDMV ( complete Folder Structure and Files) + Certificate is mounted and played as Blu-ray disc in PowerDVD and also when same ISO 
burn on Blu-ray Disc and played using SONY Play Station.

	* Fix
	* The New PATCH is submitted to fix above issue. In PATCH there is introduction of new value of 
extension flags for AC3 Audio packets.
	* Tests
	* Test has been done on files (AVC+AC3, MPEG2Video+AC3) 

	* Results shows that AC3 audio is now playing on all above mentions players.
Kind Regards,
Kifayat Ullah
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