[FFmpeg-user] ffmpeg makes some sources darker

Jim Worrall coniophora at gmail.com
Tue Jan 5 02:03:48 CET 2016

> On 2016 Jan 4, at 5:11 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> You could test to set them with the following:
> -color_primaries bt709 -color_trc bt709 -colorspace bt709
> (with a faster preset), it shouldn't make a 
> difference but who knows...
> And please also test with -vcodec x264, Carl Eugen

Just so I don’t spend time testing the wrong way, you’re suggesting a test of 
transcoding with libx264 with and without those three color options,
then comparing a screenshot as before?

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