[mythtv] DVD dropping back to the frontend at the menu. PCM_DVD problem?

Paul Harrison mythtv at sky.com
Thu Nov 29 07:26:01 UTC 2012

On 29 November 2012 04:24, Neil Salstrom <salstrom at gmail.com> wrote:
> On Wed, Nov 28, 2012 at 11:17 AM, Paul Harrison <mythtv at sky.com> wrote:
>> I'm interested to see if you still see the 'AFD: codec PCM_DVD has 0
>> channels' messages in 0.25 so I think the default verbose setting will do.
>> Do you also see the 0 channels messages for any DVD's with AC3 audio as
>> well?
>> If you still see the 0 channels messages then I know what has changed. You
>> could try commenting out lines 210 to 213 here
>> https://github.com/MythTV/mythtv/blob/fixes/0.26/mythtv/external/FFmpeg/libavcodec/pcm.c#L210
>> That check doesn't appear in 0.25 but does in 0.26 and is what is causing
>> the codec to fail to init. Exactly how we fix that properly is anyone's
>> guess but if it works it points us in the right direction :)
> I've edited out lines 210 to 213 from pcm.c then recompiled 0.26 and
> all the problem DVDs play fine.
> Thanks,
> Neil

OK thanks for testing Neil I'll create a ticket when I get home from
work with all the relevant facts and hope that a current dev will take
it up and offer some advice on how best to fix this properly. I'm not
hopeful anyone will take it up, the project as a whole is the quietest
I've seen it since I first became interested in Myth something like 6
years ago :( It's hard to know what to do for the best persevere with
Myth or go back to the Clutter/GStreamer FE I was working on!

Paul H.

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