[mythtv-users] MythArchive: No sound on DVD - ffmpeg stream mapping problem

Paul Harrison mythtv at dsl.pipex.com
Wed Sep 13 20:29:32 UTC 2006

Andrew Meredith wrote:
> Hi Folks,
> I have just tried to burn a program from the recorded list to DVD. It 
> all went very nicely indeed until I went to play the finished product. 
> Absolutely superb in all respects but one ... no sound.
> The problem is that the source file has two separate audio tracks; one 
> mono (0.1) and one stereo (0.2). The ffmpeg command chooses the mono 
> track to reprocess to the DVD format file (Stream #0.1 -> #0.1).
> I reran the ffmpeg command as above, but with "-map 0:0 -map 0:2" at the 
> end instead and the resultant file had sound.
> Cheers
> Andy M
I thing the algorithm to choose the correct audio stream needs tweaking 
a little. It's worked fine for me in the UK with all the files I've 
tried but I know of a least one other person where it failed to choose 
the correct one. I need some additional information to figure out why 
its not working.
Could you run mytharchivehelper to get the stream info on the original 
mytharchivehelper -i /path/to/original/file streaminfo.xml 0
and email me the resulting file.

Thanks for doing some detective work by the way. I wish everyone would 
do the same :-)

Paul H.

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