I have the same problem. All my videos processed in Shotcut (using x264) have their brightness changed and colors slightly off (washed out). An example video I’m just editing has yuv420p as the source format. I noticed that my exported videos show this in mediainfo:
Color range : Limited
Transfer characteristics : BT.709
Matrix coefficients : BT.709
After searching on the internet, I blame the limited color range. Not sure if I’m right. I found that x264 has this option:
--range <string>
Specify color range ["auto"] - auto, tv, pc
but I don’t know how to make Shotcut use a custom x264 option (I wanted to use --range pc).
Is there any way to make Shotcut use a full color range, or does it simply not support anything else then the limited color range?