Redraw issue on timeline around playhead

[dngrlux]

I'm noticing a redraw issue in the latest builds. Vertical black bars are appearing around the playhead.

I believe it started somewhere around version 3.8.0, and has not been resolved as of 3.9.1. [macOS Catalina 10.15.3]

[mifi]

Did you do something to these screenshots? I added black 1px wide bars to indicate keyframes, but they look more like this:

If no, how do you reproduce this issue?

[dngrlux]

Those screenshots were only cropped. I just downloaded 3.10.0 and there are still redraw oddities, although different than before (screen recording attached). I am dragging a video into the application window, then using the i and o hotkeys to mark in and out points.

Screen Recording 2020-02-26.zip

[mifi]

Interesting! Thanks for sharing screenrec. I think the issue here is that your video has a LOT of keyframes, and they are all being rendered due to the new feature I added of rendering keyframes. I will make a button to toggle showing of keyframes.
What kind of video format is this?

[EtiamNullam]

For me black square covering the timeline was following the cursor.
LosslessCut 3.8.0, Windows 10

Update to LosslessCut 3.11.0 fixed the problem.

[mifi]

What kind of file is this @EtiamNullam ? Do you mind to share a short segment from one file? I think this is also caused by keyframes very tightly packed together

[dngrlux]

That sounds right… if I zoom into the timeline, they start to spread out.
The video is from a Skydio 2 drone. MP4, H.264 HD (1-1-1), 3840x2160, 60fps, 100mbit/sec.

[EtiamNullam]

@mifi: Yes I think you're right. I don't have the previous file anymore but I have encountered similar behavior with different file (using LosslessCut 3.11.0).

It's a recording of game using Nvidia Experience (Geforce Share). Codec info:

Hiding keyframes helps, so I guess they were indeed just tightly packed.

[mifi]

I want to make it more clear that they are keyframes or hide them altogether when too tightly packed to be useful