[FFmpeg-trac] #7037(avcodec:open): ffmpeg destroys HDR metadata when encoding

FFmpeg trac at avcodec.org
Sat Jan 18 14:18:16 EET 2020

#7037: ffmpeg destroys HDR metadata when encoding
             Reporter:  mario66      |                    Owner:  cehoyos
                 Type:  enhancement  |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  libx265 hdr  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by mario66):

 It is not a solution in my opinion if you have to manually find out all
 those meta data and copy them all one by one via. command line. ffmpeg is
 a executable, not only a library. And as executable ffmpeg should behave
 with no "surprises".

 That means, if I do:
 "$ ffmpeg -i input.mp4 output.avi"
 as said on your website: https://ffmpeg.org/
 where you claim "Converting video and audio has never been so easy." then,
 metadata should be preserved, OR user should be clearly warned that meta
 data is lost AND there should be a simple command line switch to preserve
 meta data "so easy". This is my "definition of done" for this ticket and
 nothing else.

 Deleting important metadata by default is a big surprise for most users.

Ticket URL: <https://trac.ffmpeg.org/ticket/7037#comment:61>
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