[FFmpeg-trac] #6445(undetermined:new): Incorrect Video Levels in vf_colorspace
FFmpeg
trac at avcodec.org
Sat Jun 10 01:59:18 EEST 2017
#6445: Incorrect Video Levels in vf_colorspace
-------------------------------------+-------------------------------------
Reporter: maweber | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by maweber):
I hope I got this right?
from the batch file:
{{{
# Conclusion: ffmpeg version git-2017-06-09-9c6b982
#
# vf_colorspace irange WILL override the input "-color_range",
# vf_colorspace irange is not a factor.
# vf_colorspace range will NOT override the output pix_fmt,
# vf_colorspace range is a factor, will be multiplied by the pix_fmt
levels of the encoder
}}}
I'm not sure about the way to take it, as I tend to struggle with this
kind of complexity.
;-)
Somehow I expected the image beginning at vf to be normalized somehow. The
file input params are very useful for GUIs and wrapping applications, so I
guess the input params of colorspace are better not used when file input
params are present. If using "lut3d" in the chain I guess it's recommended
to prefix a vf_colorspace range to normalize it, and have consistent
results... (?)
That's as far as I can get for now, thanks anyways for a feedback.
Have a good one,
M
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6445#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list