User Tools

Site Tools


4k

Convert MKV to MP4

For LG TV you may need convert Dolby Vision MKV to MP4
(mkv tool, dolby vision muxer and mp4box required)

mkvextract.exe input.mkv tracks 0:video.hevc 1:audio.ac3 3:en.srt 9:cs.srt
mp4muxer.exe --dv-profile 5 --input-file video.hevc --input-file audio.ac3 --output-file movie.mp4
mp4box.exe  -brand mp42isom -tight -itags cover=cover.jpg -ab dby1 -no-iod -add "movie.mp4" -add "en.srt#subtitle:lang=en-EN:name=English"  -add "cs.srt#subtitle:lang=cs-CZ:name=Czech" -new "outfinal.mp4"
pause

Convert remux MP4

mp4demuxer --input-file input.mp4 --output-folder tmp
mp4muxer --dv-profile 5 --input-file tmp\out_1.h265 --input-file tmp\out_2.ec3 --output-file movie.mp4
mp4box.exe -brand mp42isom -tight -itags cover=cover.jpg -ab dby1 -no-iod -add "movie.mp4" -add "tmp\en.srt#subtitle:lang=en-EN:name=English" -new "outfinal.mp4"
pause

Extract metadata

ffmpeg -i input.mp4 -c:v copy -vbsf hevc_mp4toannexb -f hevc - | dovi_tool extract-rpu --rpu-out metadata.rpu -

Encode Dolby Vision

ffmpeg -i input.mp4 -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p10le - | x265-10b - --input-depth 10 --output-depth 10 --y4m --preset veryfast --crf 22 --master-display "G(8500,39850)B(6550,2300)R(35400,14600)WP(15635,16450)L(40000000,50)" --max-cll "0,0" --colormatrix bt2020nc --colorprim bt2020 --transfer smpte2084 --dolby-vision-rpu glass.rpu --dolby-vision-profile 8.1 --vbv-bufsize 20000 --vbv-maxrate 20000 output.hevc

HDR10 to SDR

ffmpeg -y -ss 07:48 -t 60 -i input.mkv -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p -c:v libx265 -preset ultrafast -x265-params lossless=1 -an -sn -dn -reset_timestamps 1 movie_non_hdr.mkv
4k.txt · Last modified: 2021/12/29 12:31 by Jan Forman