[mythtv-users] Problem Audio on Freeview HD BBC Channels

Roy Thompson roy at haematic.org
Mon May 23 07:18:04 UTC 2011


On 15/05/2011 12:50, Glenn Callow wrote:
>> I'm guessing the issue is in ffmpeg ; the AAC/LATM decoder in ffmpeg
>> is very new...
>>
> That looks likely to me.  I've just tried running the same clip through mplayer, and get the same problem (and error message) that mythfrontend reports i.e.
>
> [aac_latm @ 0xf13bc0]channel element 0.0 is not allocated
>
> repeated over and over after the program transition.  ffmpeg can decode both types of audio - if you snip the posted clip down to the last 10MB it plays just fine.  It's not handling the transition between audio configurations though.
>
> I'll open up a bug on the ffmpeg bug tracker.  Thanks everybody for pointing me in the right direction.
>
> Glenn
>

Just a note to say I am seeing the same issue on recordings from BBC HD 
freeview channel.
I get "AFD Error: Unknown audio decoding error" in the logs.
I thought clipping the recording after the switch to the main program 
from the ident would help
but does not.

Roy


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