Well, I tried changing the frame-rate of the source footage but that didn't help.

However, I downloaded the <http://cvs.cinelerra.org/footage/prpol-rerender2.mov > and <http://cvs.cinelerra.org/footage/coals.mov> and these played fine.
I should note that all of the files I have been using (with this issue) were captured with Final Cut Pro onto a 300GB firewire drive (HFS+ w/o Journaling which Linux can read/write) as opposed to being captured using my own FireWire card. My own DV camera is old and the firewire port is borked, and the footage I am working with was shot on DVCPro anyway so I have to capture at work and then edit here.

Comparing the Info on both of the clips downloaded from the site reveals that they are Quicktime's compressed with the DV codec, both, audio is 48Khz, 16-bit, 2 channel compressed with "Twos Complement." Bitrate of both files is approx. 30Mbits/sec. The only significant difference between the two is that the files downloaded from Cinelerra.Org are PAL (25fps, 720x576) and mine are NTSC (29.97, 720x480), but that can't be it.

This is confusing. Aren't all DV videos in Quicktime wrappers the same? What else should I be looking for? What could be different?

On 9/10/06, Herman Robak <[EMAIL PROTECTED]> wrote:
On Sun, 10 Sep 2006 20:32:35 +0200, Matt Pfingsten <[EMAIL PROTECTED]>
wrote:

> As I stated in earlier posts I can play back DV quicktimes fine in
> MPlayer,
> but they are always choppy in Cinelerra. Even when I advanced one frame
> at a
> time in Cinelerra, the viewer or compositor only updates the image every
> 3-4
> frames, no matter how long I wait after advancing to the next frame.
>
> Well, perhaps this helps me understand more of why Cinelerra is
> performing
> so badly on my machine, but I just tried to render something. It's a 30
> second sequence of several clips joined together with dissolves. When I
> watch the rendered video (exporting to Quicktime for Linux, DV
> compression,
> no sound as it is not needed for this clip) in Mplayer, the dissolves
> play
> out at full frame rate (29.97 ) but not the underlying video, which is as
> choppy as it is in Cinelerra.

  Have you double-checked that the frame rate is indeed 29.97 both in the
Format dialog _and_ for the resources?  Right-click on the media file in
the Media folder in the resources window, to get "Info", and see if the
frame rate is 29.97 there.  You can edit the frame rate.

  There was a locale-related bug quite a while ago that caused 25 fps
projects to have 2.5 frames per second, all of a sudden.  But that was
fixed long ago.  Howerver, it does sound like the project setting is
correct, whereas the resource framerate is wrong, for some reason.

--
Herman Robak

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--
Matt Pfingsten
[EMAIL PROTECTED]
www.GotWookiee.com

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