PNG render quality NG~

[yichuang-zh]

Please include the following information.

1. Flowblade version (Help->About):2.8
2. MLT version (Help->Runtime Environment):6.24.0
3. Your distribution (Ubuntu, Debian, Mint etc.):Debian 10.9
4. If possible, try to provide step-by-step instructions on how to reproduce the issue. From developer point of view this is the easieast way to understand what is happening.:

1-import one mp4 and one png; 2-place mp4 into V1; 3-place png into V2; 4-on V2, png, add filter-transform-position scale:x=80,y=160,width=128,height=128; 5-on V2, png, add compositor-blend;

The quality of the png is NG before rendering, and NG after rendering. (There are three black dots within the png.) sample.zip

[jliljebl]

Does not reproduce here. I'll leave this open for a bit, but unless we get some additional info, I'll close.

[yichuang-zh]

I tested the png with shotcut(https://shotcut.org/), in shotcut, the rendering quality is OK.

I donot know if it was because of my hardware or software(os). Youre rendering quality is OK, so, I think maybe is not a problem.