[mythtv] Call for testing branch devel/ffmpeg-resync (mpegts-harmonize)

[John Pilkington]

On 24/07/2022 23:22, John Pilkington wrote:
> On 24/07/2022 20:58, John Pilkington wrote:
> 
>> I rebooted to 5.18.11 instead of 5.18.13
>>
>> The previews are still being tried, and failing.
>>
> Still running 5.18.11, it just made a recording and now seems to be 
> working as intended.  It feels as if the failed previewgens were locking 
> out later attempts.  I was able to run my usual cutting program in 
> no-cut mode, which removes non-AV streams, rebuilds the seektable and 
> clears bookmarks before running previewgen 'as the final step because it 
> used to be liable to  segfault'. (I removed that comment only a few days 
> ago.)
> 
> The previews were generated, and now it seems ok.  I'll try the later 
> kernel tomorrow.

Back with the current 5.18.13, things look much the same.

For recordings in progress, most channels show no preview and I've just 
noticed that the backend log screen for BBC ONE HD has a E Preview line 
that includes --size 0x0 and (141).  OTOH, ITV HD does show the preview.

Post-processing as above before attempting playback does appear to 
restore normal operation, although in the course of all this I have 
disabled the deinterlacing...

During the BBC ONE HD (H264) preprocessing by mythffmpeg, after the 
usual 'Timestamps are unset, Fix your code' complaint and the remuxing 
summary, there's a

double free or corruption (fasttop)

line that I don't remember seeing before.