play uncompressed avi

[VJ]

Hello,

I recently rendered a 3D animation for a friend of mine. Output was an uncompressed avi-file (720x576).
Now is my question: what is the major bottleneck when attempting to playback such a file ? It played, but with occasional stutters (every 10s or so).

The system is a dual Xeon 2.4 (FSB 533) on Supermicro X5DA8, 1 GB ECC DDR SDRAM, Seagate Cheetah 10K.6 (onboard U320, channel A, id 0), IBM UltraStar 36lzx (onboard U320, channel A, id 1) and Matrox G450. The system runs XP Professional.

Could it be the Matroxcard ?
I intend to upgrade it, but I just wouldn't expect it to impact playback that much...


Jörg

[mmp121]

While working on my very first DVD compilation (on System 1 in sig), I used uncompressed AVI's. I never encountered any problem playing the AVI (720x480). I did notice that the data rate of the file was ~ 15-20MB/s. So unless u have a fast dedicated hard drive just for the file to playback, you could be in for some stuttering. But based on your system specs, I can't find any real bottleneck. Maybe the video card, but I doubt that.

In short I don't know. What are you using to "view" the file? please don't say WMP 7/8/9

I only use WMP 6.4 (START:RUN:MPLAYER2) on 2k/XP systems.

[Dr Mordrid]

Uncompressed *.avi's as produced by most programs run;

27 mb/s for 704x480 NTSC/576 PAL

30 mb/s for 720x480 NTSC/576 PAL.

I don't have any problem with either on my AthlonXP 2400+ and 2600+ systems, even with a single HDD (non-RAID) and WMP9 unless the video is on the inner tracks.

Dr. Mordrid

[VJ]

Originally posted by mmp121
In short I don't know. What are you using to "view" the file? please don't say WMP 7/8/9

Well, that one didn't go well at all... I tried both the dvd-playback software Powerdvd that came with my dvd drive, and the dvd-playback software bundled with the G450 tv-out cable.
Both with not completely satisfactory results...

I'm not sure know, but I think the AVI file was on a different drive than the Windows folder.


Jörg