[FFmpeg-trac] #7037(avcodec:open): ffmpeg destroys HDR metadata when encoding
FFmpeg
trac at avcodec.org
Fri Jan 17 05:57:24 EET 2020
#7037: ffmpeg destroys HDR metadata when encoding
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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 |
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Comment (by Balling):
Replying to [comment:56 delirio]:
> Replying to [comment:53 Balling]:
> > You understand that pirates on rarbg use ffmpeg? The metadata is
correct for both the original bit perfect WEBDL or Blu-ray and
downconverts. Dolby Vision content obviously could not be downconverted
yet.
> > So there should be a perfectly working script out there that uses that
json ffprobe data, for example. Github is the place for it, or github
gists. I will try to search through it /sigh
>
> I have searched as you suggested on RARBG for their 4K encodes and no
matter it was WEB or Bluray encodings (on every group), the mediainfo
shows that they were using x265 library on Windows for encoding, no
mention of ffmpeg/lavf encoder. They either aren't using ffmpeg at all or
just avoid it for 4K HDR releases because of missing support.
That it is not how it works, ffmpeg IS USING x265 library as I said. And
in Mediainfo that is called "Writing library" for a reason.
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Ticket URL: <https://trac.ffmpeg.org/ticket/7037#comment:58>
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