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Benjamin

@gamingonlinux Yeah fair enough. Hope you figure it out, tried recreating the issue but didn't have any luck. 1080p video in a 4k timeline.

Screenshot of Kdenlive with two video clips on the timeline.
11 comments
Liam @ GamingOnLinux 🐧🎮

@BenjaminNelan hmmm, put a frame around it so it's in the exact position, resize the video insert and export and see?

Liam @ GamingOnLinux 🐧🎮

@BenjaminNelan so my video was 1080p, with a picture frame, 720p video position/zoom to the correct placement and sizing (kdenlive inserts at 1080p, so resize to 720p)...and you should see the issue if you export to say 1440p

Benjamin

@gamingonlinux Ohhhh, let me try that. So 720p output, 1080p video scaled down - are you using the size scaler or manually setting width/height?*

*Nevermind I misread!

Liam @ GamingOnLinux 🐧🎮

@BenjaminNelan

720p video, inside 1080p project. The clip is scaled down to 720p with position + zoom, as kdenlive inserts it at full project size.

Then when exporting, change res to 1440p.

You'll see the clip is not exactly where it's supposed to be...especially clear when you put the clip inside a full-size frame

Benjamin

@gamingonlinux Ahaah ok I see now. I assume your project in 1080p and not 1440p is for performance reasons?

Liam @ GamingOnLinux 🐧🎮

@BenjaminNelan it's at 1080p, because the clips I use are always 720p, so I put them in a 1080p frame of a Steam Deck, then i want to just upscale the final export to 1440p - but kdenlive's rescale seems to not quite work how i want it and doesn't have the 720p clip in the right position

Liam @ GamingOnLinux 🐧🎮 replied to Liam @ GamingOnLinux 🐧🎮

@BenjaminNelan but then if i kept it at 1080p, and rescaled to 1440p after using handbrake it was fine..this is what it's supposed to be like ;)

Benjamin

@gamingonlinux I was *kinda *able to get it working using the corners effect - but it's still not correct... it's too big although it's in the 'correct spot'.

You're right, seems like the scaling occurs but doesn't adjust the effects to account for the new scale. I wonder if it happens in shotcut, wanna figure out if it's happening at the MLT level or not.

Another screenshot of Kdenlive showing a more similar to correct output... but still not right.
Liam @ GamingOnLinux 🐧🎮 replied to Benjamin

@BenjaminNelan glad it's not just me then, yes seems to be kdenlive doesn't account the positions when scaling

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