[mythtv-users] IPTV 'Manual Schedule' recordings: mythpreviewgen fails and repeats

John Pilkington johnpilk222 at gmail.com
Tue Oct 29 14:20:52 UTC 2019

On 29/10/2019 13:03, John Pilkington wrote:
> I'm running the 2019-render head in Fedora 30 with nVidia nvdec 
> hardware, and have made several recordings from the French mezzo 
> channel, using the Manual Scheduler: 854x480 at 25fps, H.254.  The frontend 
> log has lots of lines like:
> E PreviewQueue: Attempted to generate preview for 
> 'xxxx_yyyymmddhhmmss00.ts_0x0_-1s'  1402 times; >= max(50)
> Running mythpreviewgen from a script or terminal causes a segfault. 
> Adding --size and --seconds made no difference.  Playback says it's 
> using nvdec but previewgen says the nvdec check failed.  Same with no 
> frontend running.
> FireTVstick 4k using ffmpeg doesn't show a preview either, but DLNA 
> video and video preview are ok.
> Recordings from France 24 English give previews ok, but scheduling 10 
> minutes gives a several GB file, hours long...
> I don't know whether the problems are in new or old code, so posting 
> here initially.
> John P
The jobqueue has 'Flag adverts' and 'Look for metadata' for these 
recordings. Normally I don't do either.  Is there a special setting for 
manually scheduled recordings?

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