Forums > Jitter

capturing & editing clips for jitter with Fcp

November 18, 2007 | 10:57 am

Dear all i want to understand once for all wich settings are best for me to capture, edit and save clips in Fcp for jitter. actually my clips doesn’t play smooth as max example media clips.
when playing my clips in jitter sometimes i get undesired glitches and hiccups (while example clips not) and if i reproduce them with other programs (Qt player, modul8) they are ok…what am i missing???
how the example clips have been prepared, edited, saved?

my needs
play low res (320 240) clips for realtime visuals as smooth as i can

my system
alu Pb 1.ghz osx 10.4
jitter 1.5…
Fcp 5.0

my camera
canon xm1

fcp settings
capture preset: dv pal 48hz

sequence settings
frame size:720 576 ccir 601/dv pal 5:4
pixel aspect ratio: pal ccir 601 720 576
fielddominance: none

saving settings
export>quicktime conversion>options:
compression photo-jpeg medium
no sound
size 320 240
no optimization for streaming

any helps and thoughts are GREATLY appreciated
ciao
michele


November 18, 2007 | 11:00 am

thisisdrivingmecrazy


November 18, 2007 | 6:18 pm

photojpeg is a progressive codec, and DV is an interlaced codec.

I suggest using motionjpeg b.

Your ingesting into FCP does not seem to be an issue. A 1Ghz G4 does
not have much room for overhead, and as per discussions earlier,
Jitter can be tricky with playback.

Try direct to window method. If it plays back smooth there, you will
have to tweak your max patch.

See my post in the stutter thread about settings for HD playback, it
should apply for any media type on any system to make things better.

On Nov 18, 2007, at 5:57 AM, mic wrote:

>
> Dear all i want to understand once for all wich settings are best
> for me to capture, edit and save clips in Fcp for jitter. actually
> my clips doesn’t play smooth as max example media clips.
> when playing my clips in jitter sometimes i get undesired glitches
> and hiccups (while example clips not) and if i reproduce them with
> other programs (Qt player, modul8) they are ok…what am i missing???
> how the example clips have been prepared, edited, saved?
>
> my needs
> play low res (320 240) clips for realtime visuals as smooth as i can
>
> my system
> alu Pb 1.ghz osx 10.4
> jitter 1.5…
> Fcp 5.0
>
> my camera
> canon xm1
>
> fcp settings
> capture preset: dv pal 48hz
>
> sequence settings
> frame size:720 576 ccir 601/dv pal 5:4
> pixel aspect ratio: pal ccir 601 720 576
> fielddominance: none
>
> saving settings
> export>quicktime conversion>options:
> compression photo-jpeg medium
> no sound
> size 320 240
> no optimization for streaming
>
> any helps and thoughts are GREATLY appreciated
> ciao
> michele


November 18, 2007 | 6:44 pm

Look on forum many people wrote about that.
But you can try with no compression , direct to window …


November 18, 2007 | 8:42 pm

also, if you’re interested in duplicating the settings of an existing quicktime movie, and you have qt pro (which you should), just open the movie and do a get info. it should tell you all the relevant settings of that movie.

the only thing it seems like you might be doing different is the fps. the jitter examples are all 15 fps.


November 18, 2007 | 11:48 pm

Sounds like you’re going about things the right way.

The whole field ordering thing is pretty important.

DV-PAL from the camera is lower field first. But you want to export a progressive scan QT if you’re playing back on a computer.

So I’d keep your field ordering in FCP sequence settings as none, and then apply a de-interlace filter to the clips.

FCP’s own filter is OK. Much better is the nattress smart de-interlace, which is part of a box of filters on nattress.com

Then export using compressor as photo-jpeg 75%.

And then you’ll come across the slightly jittery playback issue that we’re all harping on about.

But you’ll have some nice looking clips to play.

As far as I’m aware, there’s nothing inherently interlaced or progressive about the DV or photo-jpeg codecs. It’s just that DV cameras generally shoot interlaced images. Unless you’ve got one of those new fancy ones.


November 18, 2007 | 11:57 pm

FYI

http://lists.apple.com/archives/quicktime-talk/2000/Nov/msg00269.html

On Nov 18, 2007, at 6:48 PM, marcus lyall wrote:

>
> As far as I’m aware, there’s nothing inherently interlaced or
> progressive about the DV or photo-jpeg codecs. It’s just that DV
> cameras generally shoot interlaced images. Unless you’ve got one of
> those new fancy ones.
>


November 19, 2007 | 7:45 am

thanks to all!
Quicktime pro!! man i’ll get it for sure
best
mic


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