Forums > Jitter

poor fullscreen resolution

April 18, 2013 | 5:09 pm

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?



dtr
April 18, 2013 | 5:28 pm

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


April 18, 2013 | 5:38 pm

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.



dtr
April 18, 2013 | 9:48 pm

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?


April 26, 2013 | 12:16 pm

Hi

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


April 26, 2013 | 3:34 pm

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.


April 26, 2013 | 3:53 pm

Thanks

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.


April 26, 2013 | 4:09 pm

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.


April 26, 2013 | 4:10 pm

"haw"… hehe sorry.


April 26, 2013 | 4:25 pm

Not all.

It’s my really simple path.

Attachments:
  1. lecteurvideo.rtf

April 26, 2013 | 7:20 pm

Dear Nanor

Try attached basic patch.

Attachments:
  1. movieplayer.maxpat

Viewing 11 posts - 1 through 11 (of 11 total)