[mythtv-users] DVD audio problems (PCM_S16BE)

Richard Hulme peper03 at yahoo.com
Sun Nov 10 21:10:37 UTC 2013


On 09/11/13 20:34, Neil Salstrom wrote:
> I've had an issue since upgrading to 0.27-fixes where DVD's with stereo
> audio don't play the audio in the main video track.  Audio plays fine
> during the menu however when the movie itself plays there is no sound.
> It play fine using VLC on the same system.

<snip>

> 2013-11-09 10:38:13.919128 I  AFD: codec PCM_DVD has 0 channels
> 2013-11-09 10:38:13.919204 I  AFD: Opened codec 0x7fd4cc048200,
> id(PCM_DVD) type(Audio)

Hi Neil,

The problem seems to be that ffmpeg is reporting 'PCM_DVD' for this 
audio track.  That would be correct for 20 or 24 bits per sample but 
your DVDs only have 16 bps.  As far as I can tell, ffmpeg should 
normally detect that and change the required codec to 'PCM_S16BE'.

At the moment I don't know why that isn't happening.

I can reproduce the problem so I've created ticket 11941 
(http://code.mythtv.org/trac/ticket/11941) to track it.

Richard.



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