[mythtv-users] mythffmpeg stream analysis defeated, works with ffmpeg

John Pilkington J.Pilk at tesco.net
Sun Oct 27 08:54:43 UTC 2013


On 27/10/13 08:21, Jean-Yves Avenard wrote:
> Hi
>
> On 27 October 2013 09:03, John Pilkington <J.Pilk at tesco.net> wrote:
>> I've just made a recording (dvb-t) that the frontend couldn't play, although
>> vlc could.  It was on cbbc, and overlapped the 'end of service' time on that
>> channel.  mythffmpeg could find no mpeg2video (Main) stream, even after
>> increasing analyzeduration and probesize.  ffmpeg complained too, but did
>> locate the video stream. After I patched mythDVBcut to use ffmpeg instead of
>> mythffmeg for stream identification, it has produced a myth-compatible file.
>>
>> 0.27-fixes, f18 from rpmfusion and friends.  It's working well for me.
>
> you can start mythfrontend with -O FFMPEGTS=1 or use mythffmpeg with
>
> mythffmpeg -f mpegts-ffmpeg
>
> which will use ffmpeg original mpegts demuxer.
>
> Jean-Yves

OK, thanks for that.  This looks as if it's a special situation, 
although probably easy to reproduce, or encounter by chance.  I doubt 
that it's worth making a full-time switch back to ffmpeg but the 
workaround could be useful.

John




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