What kind of hardware are you using? I have a 3.4 Ghz P4 HT with a FireGL card and it struggles to play 4 640x480 Photo-jpeg QT clips at 30fps. The CPU load on a HyperThreaded machine is misleading as Windows thinks there are two actual CPUs which isn't the case. So 50% load usually means the thing is hammered.
Texturing performance under Windows seems pretty awful and DirectShow and Quicktime aren't much better. I'm looking into improving things...
On 12/12/05, Nuno Godinho eu@nunogodinho.com wrote:
Hi,
I am running 4 videos and I want to fade between them. Moving a MIDI slider (ctlin 0..127) I assign a range to each video (0..30, 30..60, 60..90, 90..127) and then fade between them.
Although the logic is working, the performance is unacceptable. The CPU is only running at 40% but the videos look slow and the transitions aren't smooth.
I figured this is because 4 simultaneous films is too much for GEM in my PC. So I implemented a way to turn off each film when its transparency equals 0 since it is not showing anyway.
The problem now is that when I send "1" or "0" to gemhead to turn it on/off I sometimes get a delay of over 1 second before that video turns on or off.
Here attached I send my patches. "vela.pd" is the main one.
Any ideas?
Thanks in advance, Nuno
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list