[mythtv-users] mac build (really about h264 editing)

[James Linder]

> On 30 Jan 2021, at 7:37 pm, John Pilkington <johnpilk222 at gmail.com> wrote:
> 
> Just for fun I tried looking at this.  1.6 GB doesn't feel 'small' to me, but times change.
> 
> The cutting is a two-step process: once with no cutlist to remove all but the main video and audio streams, then a second does the cuts.  It doesn't work well with corrupt recordings and still complains about corrupt packets at the start of each segment.  There's some KFC ad leakage around frame 39442 :-)
> 
> {{{
> 
> Input file was 10074_20210123140800.ts from downloads.tigger, overwritten onto a short local recording.
> 
> ----------
> 
> Input #0, mpegts, from '/mnt/sdb3/RecSG3/20101_20210130100100.ts':
>  Duration: 01:00:30.90, start: 10613.545933, bitrate: 3735 kb/s
>    Stream #0:0[0x671]: Video: h264 (High), yuv420p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
>    Stream #0:1[0x672](eng): Audio: ac3, 48000 Hz, stereo, fltp, 384 kb/s
>    Stream #0:2[0x674](eng): Subtitle: dvb_teletext
> Unsupported codec with id 94215 for input stream 2
> 
> ---------
> 
> Running: mythutil --getcutlist --chanid 20101 --starttime 20210130100100 -q
> Cutlist: 3916-8195,27613-32895,40117-45145,54043-59070,71236-77520
> 3916-8195,27613-32895,40117-45145,54043-59070,71236-77520
> 
> If you want to reset this cutlist, after restoring the .old file
> and rebuilding its seektable, you could try:
> 
> mythutil --setcutlist 3916-8195,27613-32895,40117-45145,54043-59070,71236-77520 --chanid 20101 --starttime 20210130100100
> 
> ------------
> Millisecond positions of joins in new file:
> 
>  00:02:34.7200     154720 ms
>  00:15:30.4800     930480 ms
>  00:20:18.4400     1218440 ms
>  00:26:13.5600     1573560 ms
>  00:34:20.2000     2060200 ms
>  00:43:07.6000     2587600 ms
> 
> 
> Frame positions of joins in new file:
> 3868 23262 30461 39339 51505 64661
> 
> --------------
> 
> mythffprobe -hide_banner  /mnt/sdb3/RecSG3/20101_20210130100100.ts
> Input #0, mpegts, from '/mnt/sdb3/RecSG3/20101_20210130100100.ts':
>  Duration: 00:43:17.10, start: 1.400000, bitrate: 3483 kb/s
>    Stream #0:0[0x100]: Video: h264 (High), yuv420p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
>    Stream #0:1[0x101](eng): Audio: ac3, 48000 Hz, stereo, fltp, 384 kb/s
> 
> }}}

Mike did you edit with a mac?
For me 
set a cut point
move
crash

but my linux frontend is quite content to gobble bad content

James