I use 'ffmpeg-i somefile.ogg - c copy list 1-f ogg' http://127.0.0.1:80 `To
output the video to http://127.0.0.1.
When I use fetch from other website, the browser send an OPTIONS preflight
request.
This interrupts the normal output of ffmpeg, even with the addition of
'headers=Access Control Al
Howdy ffmpeg users.
I have found a behavior that seems strange to me. The following two commands:
$ ffmpeg -i input.mkv -an -c:v libx265 -preset slow -crf 21 output1.mkv
and
$ ffmpeg -i input.mkv -an -c:v libx265 -preset slow -crf 21 -vf
"setpts=PTS-STARTPTS" output2.mkv
produce output files
Is it all right to 'talk' about the picture stream? For the various
> permutations of OETF (in camera), what comes out the decoder? I assume that
> for BT2020 SMPTE2084 it's HDR10 PQ, and for BT2100 it's either HDR10 PQ or
> HDR10 HLG. In other words, the decoder just makes pictures but doesn't do
> I suspect (from name patterns) linear is opposed to HLG/PQ *gamma* (EOTF?)
> and BT2020/BT709 is colour primaries etc.
>
In other available LUTs (e.g. from NHK/BBC or NBCU), the name follows the
schema indicated by Andrew, i.e. primaries and transfer function for input
first, output second. For
Thanks for contributing, Erik.
On 18/05/2025 18.18, Erik Dobberkau wrote:
Is it all right to 'talk' about the picture stream? For the various permutations of OETF (in
camera), what comes out the decoder? I assume that for BT2020 SMPTE2084 it's HDR10 PQ, and for
BT2100 it's either HDR10 PQ o
