Hmm, mikähän tässä hangoittaa:
$ ffmpeg -y -i 'Miles Electric.m2t' -filter_complex '[0:v][i:0xc37]overlay' -vcodec libx265 -crf 28 -preset ultrafast -c:a aac -b:a 160k -sn me.mkv
Input #0, mpegts, from 'Miles Electric.m2t':
Duration: 01:44:30.90, start: 6016.422411, bitrate: 6205 kb/s
Program 25
Stream #0:0[0x13a]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x366](fin): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream #0:2[0x369](dut): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 192 kb/s (visual impaired)
Stream #0:3[0xc37](fin): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
Stream #0:4[0xc38](swe): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
Stream #0:5[0x13ec](fin): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
Stream #0:6[0xc4e](fin): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired)
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #0:3 (dvbsub) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx265)
Stream #0:1 -> #0:1 (ac3 (native) -> aac (native))
niin lopputuloksena on ziljoona ilmoitusta
[graph 0 input from stream 0:3 @ 0x558c731f8d80] Changing frame properties on the fly is not supported by all filters.
Last message repeated 2 times
ja ennen pitkää homma kaatuu ja terminaaliin tulee vaan ilmoitus: Tapettu.
Ei vaan heti hiffaa, mistä viasta nyt on kyse...