poor fullscreen resolution

Apr 18, 2013 at 5:09pm

poor fullscreen resolution

Please help a new guy. I can’t get high quality fullscreen movie. Using 1920 x 1080 QT mov file as source. Trying to get fullscreen (2560 x 1440) picture – it looks a little pixelated. What inspector settings do I use? Or is the problem else where?

Apr 18, 2013 at 5:28pm

a little or a lot? if it’s a little you’re probably looking at the upscaling of 1920×1080 to 2560×1440.
a lot then jit.qt.movie is probably still set to the default 320×240

Apr 18, 2013 at 5:38pm

Thanks for your reply. I guess a little, but it seems to be more pixelation than if I play the source movie fullscreen directly, i.e. double clicking the qt file. That is my concern. The jit.qt.movie is set to 1920 1080 in the inspector.

Apr 18, 2013 at 9:48pm

Quicktime player might be filtering the video to make it smoother and jit.qt.movie doesn’t. Hard to say without seeing what you’re seeing. How about some screenshots or so?

Apr 26, 2013 at 12:16pm


I have the same problem. Did you find a solution??

Apr 26, 2013 at 3:34pm

Try “@adapt 1″ parameter of the [jit.qt.movie] object. Next use [matrixinfo] object to check resolution of the matrix produced by [jit.qt.movie]. If resolution is ok – check rendering parameters (interpolation, fsaa, smooth_shader, etc.).

And – of course – you can post your patch. Sometimes it’s simplest way to discuss possible issues.

Apr 26, 2013 at 3:53pm


The resolution is ok. 1280/720 codec : Apple proRes 422

Can you tell me more about the interpolation, fsaa, smooth_shader?
My patch is very simple but when I compare my video played with jitter and the video played with quicktime, I can see more pixels.

Apr 26, 2013 at 4:09pm

I don’t know, haw you displaying the video. I guess you are using [jit.gl.render], [jit.window] and [jit.gl.videoplane]. Play a bit with antialias and fsaa parameters of [jit.gl.render], antialias, interp, and smooth_shading of [jit.gl.videoplane], interp and fsaa of [jit.window]. Try switch to “1″ all the mentioned parameters.

Apr 26, 2013 at 4:10pm

“haw”… hehe sorry.

Apr 26, 2013 at 4:25pm

Not all.

It’s my really simple path.

  1. lecteurvideo.rtf
Apr 26, 2013 at 7:20pm

Dear Nanor

Try attached basic patch.

  1. movieplayer.maxpat

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