docker doesn't write mp4 file

Hi,

For various reasons building the docker image took whopping hours! Issues like connection refused to some ubuntu repo, download failures and whatnot. It eventually worked after ~6 retries.

However, running it on a video that for sure does have Dolby Vision ended in no mp4 file at all. The output:

❯ docker run -it -u $(id -u):$(id -g) --rm -v /home/mark/Videos/source:/convert dvmkv2mp4
dvmkv2mp4 0.3.0-dev - easily convert Dolby Vision or HDR10+ mkvs to Dolby Vision MP4 
Created by github.com/gacopl, Released under GPLv3

Starting Conversions Mon May 15 15:22:08 UTC 2023
Converting DV8: "fancy_video.mkv"
ionice -c 3 ffmpeg -i "fancy_video.mkv" -y -loglevel error -stats -map 0:0 -c:v copy -vbsf hevc_mp4toannexb -f hevc BL_RPU.hevc -map 0:1 -c:a:0 copy 1.rus.ac3 -map 0:2 -c:a:0 copy 2.rus.ac3 -map 0:3 -c:a:0 copy 3.ukr.ac3 -map 0:4 -c:a:0 copy 4.eng.eac3 -map 0:5 -c:s:0 copy "fancy_video DV-MP4.rus5.srt" -map 0:6 -c:s:0 copy "fancy_video DV-MP4.rus6.srt" -map 0:7 -c:s:0 copy "fancy_video DV-MP4.ukr7.srt" -map 0:8 -c:s:0 copy "fancy_video DV-MP4.eng8.srt" -map 0:9 -c:s:0 copy "fancy_video DV-MP4.eng9.srt" -map 0:10 -c:s:0 copy "fancy_video DV-MP4.eng10.srt"
frame=206179 fps=1826 q=-1.0 Lsize=30803255kB time=02:23:19.36 bitrate=29344.1kbits/s speed=76.2x    
cp: cannot stat 'fancy_video.*.srt': No such file or directory
ionice -c 3 MP4Box -add BL_RPU.hevc:dv-profile=8 -add "1.rus.ac3":sopt:gfreg=ffdmx -lang 2=rus -name 2="Dub" -delay 2=0 -add "2.rus.ac3":sopt:gfreg=ffdmx -lang 3=rus -name 3="MVO" -delay 3=0 -add "3.ukr.ac3":sopt:gfreg=ffdmx -lang 4=ukr -name 4="Dub" -delay 4=0 -add "4.eng.eac3":sopt:gfreg=ffdmx -lang 5=eng -name 5="Original" -delay 5=0 -chap chapters.list -brand mp42isom -ab dby1 "fancy_video DV-MP4.mp4"
Cannot create directory "/.gpac": last error 13
Cannot create directory "/.gpac": last error 13
Cannot create directory "/.gpac/Storage": last error 2
Track Importing HEVC - Width 3840 Height 2160 FPS 24000/1001 SAR 1/1
HEVC Import results: 206179 samples (849763 NALUs) - Slices: 1920 I 45224 P 159035 B - 220491 SEI - 1789 IDR
HEVC Stream uses forward prediction - stream CTS offset: 8 frames
Track Importing AC-3 - SampleRate 48000 Num Channels 6
Track Importing AC-3 - SampleRate 48000 Num Channels 6
Track Importing AC-3 - SampleRate 48000 Num Channels 2

        Error: Bad Parameter
rm: cannot remove 'RPU.bin': No such file or directory
rm: cannot remove 'extra.json': No such file or directory
rm: cannot remove 'hdr10plus_metadata.json': No such file or directory
Conversions runtime: 0:3:55 (hh:mm:ss)
❯ ll
total 33G
-rw-r--r-- 1 mark mark 110K May 15 17:24 'fancy_video DV-MP4.eng10.srt'
-rw-r--r-- 1 mark mark  78K May 15 17:24 'fancy_video DV-MP4.eng8.srt'
-rw-r--r-- 1 mark mark  96K May 15 17:24 'fancy_video DV-MP4.eng9.srt'
-rw-r--r-- 1 mark mark 2.4K May 15 17:24 'fancy_video DV-MP4.rus5.srt'
-rw-r--r-- 1 mark mark  98K May 15 17:24 'fancy_video DV-MP4.rus6.srt'
-rw-r--r-- 1 mark mark 2.7K May 15 17:24 'fancy_video DV-MP4.ukr7.srt'
-rw-r--r-- 1 mark mark  33G May 15 01:02  fancy_video.mkv

It created the srt files though... Do note that i did chmod /home/mark/Videos/source to 777 because i noticed errors like Cannot create directory "/.gpac": last error 13 but apparently changing the permissions on that folder has no effect in this regard.

Any idea what i might be doing wrong here?

gacopl / dvmkv2mp4

docker doesn't write mp4 file #28