[FFmpeg-user] HDR specification transfert

bes231084 beniabeslan at gmail.com
Sun Feb 10 15:29:25 EET 2019

Hi, i'm think this will be helpful and no need to use NVHSP:

ffmpeg -hwaccel cuvid -y -i /storage/input_HDR.mp4 -c:v
nvenc_hevc -pix_fmt p010le -color_primaries 'bt2020'  -colorspace 'bt2020nc' 
-color_trc 'smpte2084' -preset slow -level 5.1
-b:v 20000000 -rc vbr_hq -crf 22 -c:a copy /storage/Out/testHDR_NVENC.mp4

And how i know, nvenc doesn't have eqivalent "crf". No need to use -crf.
For nvenc rate control options:
  -rc                <int>      E..V.... Override the preset rate-control
(from -1 to INT_MAX) (default -1)
     constqp                   E..V.... Constant QP mode
     vbr                          E..V.... Variable bitrate mode
     cbr                          E..V.... Constant bitrate mode
     vbr_minqp               E..V.... Variable bitrate mode with MinQP
     ll_2pass_quality       E..V.... Multi-pass optimized for image quality
     ll_2pass_size          E..V.... Multi-pass optimized for constant frame
size (deprecated)
     vbr_2pass               E..V.... Multi-pass variable bitrate mode
     cbr_ld_hq                E..V.... Constant bitrate low delay high
quality mode
     cbr_hq                    E..V.... Constant bitrate high quality mode
     vbr_hq                    E..V.... Variable bitrate high quality mode 

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