[FFmpeg-trac] #9085(avcodec:reopened): JPEG: YCCK too green
FFmpeg
trac at avcodec.org
Sun Mar 21 20:58:33 EET 2021
#9085: JPEG: YCCK too green
------------------------------------+------------------------------------
Reporter: Balling | Owner:
Type: defect | Status: reopened
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: mjpeg cmyk | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+------------------------------------
Comment (by Balling):
Replying to [comment:19 pdr0]:
> You can apply those equations
Wait a second why are you applying PhotoYCC equestions? I did not attach
any PhotoYCC samples. That is YCCK, it is different from PhotoYCC,
completly different.
As for color management, ffmpeg is already color managed in that part,
because the standard does say to convert YCCK to CMYK. Right here, but
there is some big there, I suppose. Maybe yuva internally destroys the
picture, I dunno.
https://github.com/FFmpeg/FFmpeg/blame/2c6f532e0a29527347418d2d8c4ccfe57a6ace0e/libavcodec/mjpegdec.c#L2833
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9085#comment:20>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list