Why don´t this play smooth?????

[ping141]

I have 10 years video expericene from high end post production to 360 x 288 VDMX vj´ing, so digital video and codecs are not new to me.

It seems that in the middle of certain clips that are a minute or two long, the frame rate will stutter a bit and then play smooth again. The clips that I have noticed this with were originally in 75% Photo JPEG with 48khz stereo audio. Then I lowered them to 50% in order see if it helped and it didn´t. It´s not a major thing, this show is up and running every night, and I´m probably the only person noticing this problem, but still. On a 2.66 Mac Pro with a SCSI drive and an x1900 card, anything should in reality play fine, at least one stream on these resolutions. They play flawlessly on my laptop in QTP from the internal drive btw. It might be something funny with my clips, but I can´t see what it could be.

And in order to track what plays well and what doen not it would be great to have a FPS history in the Catalyst where you could see and track when the frame rate dips. Also, the FPS indicator in the Layers window does not work when playing with audio.

[samsc]

when you play with audio - playback is handled totally by quicktime.
so whatever happens with what you see if something quicktime is doing.
and audio takes priority.

quicktime player doesnt have to handle lots of layers and lots of fx...so it doesnt have so much to do. nor does it have to handle interfaces to lots of equipment like video input simulaneously.
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what size and frequency are all your display screens set to?
what is your screen setup?

do you see this when you dont have audio?


can you send me your pdf profile