Some problems with Movavi Video Editor 10 and contrast/brightness in videos

[WhamyKaBlamy]

Hey all,

First time I've posted here but I've read a few helpful things on the forum so big thanks to you all to start with. So, I've been having this problem with Movavi for a while now, but it has become really marked since I upgraded my computer and could actually capture games with high shadow content in them; What will happen is that once I've compiled the video I will lose all definition in the dark parts of the video.

I'm capturing video in MP4 H.264, 60 Mbps, 30 fps, and I've attached two files below. The "Before" is what the video looks like straight from the capture, and the "After" is, um, after (sorry, words is not my good stuffthing) I've editied and saved the video as a new file. No matter what format I try to save the file in, I always lose that definition in the darker parts of the video.

I've tried saving in:
MP4, MP4 H.264, MPEG-2 TS H.264, FLV, MKV and AVI formats with the bitrate anywhere from a YouTube standard for 1080p through to the exact bitrate (or even higher) than the actual video it's being created from.

I'm never altering the resolution of the videos or going for any quality other than highest.

The only solution that I've found that sort of semi-sometimes-maybe-not works is if I up the brightness of the video significantly before I finish up, but even then it often doesn't work. I've looked at all the options and nothing changes what's going on as far as I can see.

Any advice would be appreciated, or if it seems like this might be a problem with the software itself then any advice on another program to use would be great.

Thanks for any help and advice!

[jagabo]

The difference you are seeing is the difference between rec.709 and pc.709 scaling. You'll need to provide a sample of the source to determine whether luma values range from 0-255 or 16-235 (the latter is standard).

[WhamyKaBlamy]

Hey there, thank you for the reply.

I was just coming on to delete this thread actually, I've been looking into other options and to be honest I just think that it's movavi that's at fault for this. I've been doing some testing with a free trial of Adobe Premier Pro, I used a couple of the recommended free software on this forum and every single one seems to have the capability to output the video with the same quality.

I can still upload a sample of the video if you'd like, but I suspect it wouldn't solve anything - looking into the options on the movavi side of things I don't see any way to change the export settings. All of the things that I tried exported faster, gave a better quality, had more options to work with, etc.

[jagabo]

I don't know anything about Movavi but look for settings like "full range" or "limited range". These control how YUV video is converted to RGB and back. YUV is normally (DVD, Blu-ray, streaming, etc.) limited range (Y=16 to Y=235) whereas RGB is normally full range (RGB=0 to RGB=255). When converting between YUV and RGB the values need to scaled accordingly.