HDR 4K metadate delete in nvidia gpu trascoding
I'm trying to code with my nvidia faster and I have achieved it directly with ffmpeg, since handbrake only uses the cpy even if I select gpu.
I have used this line of code and it works perfect for 4K variable bitrate, but I want it to have the HDR metadata for the movies that have it.
now the output removes two metadata
ffmpeg -i FILE_HDR.mkv -c:v hevc_nvenc -x265-params frameref=15:fast_pskip=0 -minrate 10000k -maxrate 20000k -b:v 20000k -bufsize 20350k -c:a copy -sn /mnt/UHD/FILEHDR.mkv
what I try is to have a line of code with this
-4K HDR
- hevc_nvenc (to use the gpu)
- 2 audios without codifying that I copy them
- 16500 variable bitrate
- copy 2 subtitle files but without burning them on screen (for selection)
my system is UBUNTU 20.04 thanks
1 Answer
my solution :
ffmpeg -i /FILE.mkv -c:v:0 nvenc_hevc -preset llhq -profile:v:0 main10 -vb 15000k -c:a:0 mp2 -b:a:0 384k -f mpegts -metadata:s:v:0 master-display="G(13248,34499)B(7500,2999)R(34000,15999)WP(15700,17550)L(10000000,100)" -color_range 1 -color_trc smpte2084 -color_primaries bt2020 -colorspace 9 -y /file_out.mkv
or copy audio
ffmpeg -i /mnt/Z1tera/conversion/file.mkv -c:v:0 nvenc_hevc -preset llhq -profile:v:0 main10 -vb 15000k -metadata:s:v:0 master-display="G(13248,34499)B(7500,2999)R(34000,15999)WP(15700,17550)L(10000000,100)" -color_range 1 -color_trc smpte2084 -color_primaries bt2020 -colorspace 9 -y -c:a copy -sn /mnt/UHD/file.mkv
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