[mythtv] FFmpeg 4.4.1 problems

Peter Bennett pb.mythtv at gmail.com
Thu Nov 18 20:12:55 UTC 2021


On 11/18/21 1:08 PM, Klaas de Waal wrote:
> The ffplay from Fedora 35 plays all teletext pages as a video 
> sequence.... with possible a video backdrop but that is difficult to see.
> The mythffplay from current master plays OK, both the start and the 
> skipping.
> But more interesting is that mythffplay from the devel/ffmpeg-resync 
> branch also plays OK, both the start and the skipping.
>
Are you able to make sure that ffplay and mythffplay are using vdpau? I 
suspect they may not be using any hardware acceleration. MythTV also 
plays fine with no hardware acceleration. ffplay does not support the 
-hwaccel option that is available with ffmpeg.

You can add -sst 0 option to ffplay to prevent the videotext from showing.

Peter




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