video preview on transparent video

[MitchellK]

When previewing video files in XN View MP, if that video file has an alpha channel (ie. is transparent) the frames stack on top of each other (see attached screenshot of a clip of snow falling)

It looks like the image buffer isn't cleared before drawing the next frame or something. Is this a bug? is there a fix for this? thanks for your help

[xnview]

please send me a video file

[MitchellK]

Here is a file that has the properties I described, along with what it looks like in XnView MP after playing it back.

[xnview]

with 0.95?

[MitchellK]

I had been running 0.93, but can confirm that the issue persists in 0.95.

From about screen:

Code: Select all

XnView MP Windows
Version 0.95 64bits (Jan 15 2020)

Libformat version 7.36

[xnview]

I had been running 0.93, but can confirm that the issue persists in 0.95.

From about screen:

Code: Select all

XnView MP Windows
Version 0.95 64bits (Jan 15 2020)

Libformat version 7.36

Seems to be related to video driver, i have no problem here

[MitchellK]

Any suggestions on how to fix?

Doesn't happen in XnView by the way, just XnView MP. Which is what made me think it might have been a bug

[xnview]

Doesn't happen in XnView by the way, just XnView MP. Which is what made me think it might have been a bug

Classic use installed codec, XnView MP used ffmpeg based api