Help with video files

KTA wrote on 2/8/2004, 11:00 PM
Using MS/VF for home movies:
I'm having problems with videos made as avi files, jerky. When same videos saved as mpeg1, no problem with playback (but not happy with quality). Avi files that have not been altered with MS/VF play fine.

At first I thought it was the secondary drive, but after test runs, concluded that avi files thru MS/VF was the cause.

Defrag, scandisk, partition drives........wincleaner drives, etc.

generic homemade sys.
amd 1.2 htz
512 ram
64 video
soundblaster
1st hdd 40
2nd hdd 120

TIA
Tom
















































system:
amd 1.2 mghtz
512 ram
64 ram video card
soundblaster
primary hdd 40
secondary hdd 120

Comments

Chienworks wrote on 2/9/2004, 4:23 AM
When you render to AVI, are you using the DV template or are you going to uncompressed? DV .avi files should play back smoothly on your computer as long as you don't have too many background processes (antivirus software, for example) running. DV files are only about 3.75MB/second and anything above 700MHz should be able to play them. Uncompressed AVI files can come in at around 29MB/second and even the fastest new P4 processors and the fastest hard drives can have problems keeping up with that much data. For that matter, if you're trying to play these files off a CD or DVD disc then even DV .avi files will probably be choppy.

What is the source of your original .avi files? What format are they?
KTA wrote on 2/9/2004, 7:20 PM
Thanks for your reply,
I am using avi files from a digital camera (fujifilm s602, vga640x480, 30fps).
When I view the avi files thru WMP, Quicktime or VF no problem, but when I save (make movie) to microsoft avi (which I believe is the best quality, as far as option available) that is when the problems starts to occur.

Far as format of source from digital camera, motion jpeg (which shows as avi. file extension). But I can play these files from WMP and QT with no problems.

I am not sure I understand DV template question. When I import my dig camera avi files into VF they play fine, but when I render (make movie into microsoft avi) this is when the problems start. So I tried troubleshooting by saving the same file onto both drives as mpeg1 with no problem or difference.

Now I am not sure about your compressed question. I do not change the original files(avi) until I render (make movie).

I hope I am using the right terminology.

Hopefully I am making sense, Thank you for your help.

Tom
Chienworks wrote on 2/9/2004, 7:26 PM
When you Make Movie / Save it to your hard drive, the third field on that screen is Template. The usual choice is NTSC DV which is the compressed version you should be using. However from the description of your playback problems it sounds like you may have changed this to Default Template (uncompressed) which would create vastly huger files.
Steve Grisetti wrote on 2/10/2004, 6:41 AM
The Fuji 602 is technically not a DV video camera, but a still camera that takes motion video. Motion video is in the MJPEG format, as I understand it so, when you capture your video, capture it as an AVI with the MJPEG codec.

You should be able to do all your editing in this format and the quality should remain high. (No reason to save it as an uncompressed AVI - which will just use a lot of hard drive space and, as you've experience, tax your system during playback.)

If you do a search of this forum for MJPEG, you'll find a lot more discussion of this format.
KTA wrote on 2/14/2004, 8:50 AM
Chienworks,
Did a litle more research, tried saving in different file formats ( mpeg, avi, avi NTSC DV) and the conclusion is that on my 2nd hdd mpeg works fine, avi and avi NTSC DV works fine as long as I saved to 1st hdd then copy to 2nd hdd.

When I tried saving directly to 2nd hdd as avi (ntsc dv - uncomp) doesn't work well ( choppy). I spoke to my local computer dealer (non franchise store), his comments that given the hardware configuration, that I should not have any speed issues playing back from 2nd hdd.

By the way avi or avi- uncompressed had same issue on 2nd hdd.

Any further advice would be appreciated.
Thanks
Tom

KTA wrote on 2/14/2004, 9:12 AM
Grisetti,
I don't capture in VF, Fujifilm has its own capture thru usb, and saved as default mjpeg avi. I use this camera because of convenience. I also use Sony digital camcorder.

I have not tried to capture the fuji camera in VF. I don't think I can but will check into.

Thanks for your reply.
Tom
laz wrote on 2/15/2004, 1:44 AM
I could be way off, but sometimes there's an issue between varying rpm with hd's with dv editing. On some systems there's no prbs but others which have, say, a 7200 hd and another at 5400 could experience data-flow issues. BTW is the 120gb fat32?
KTA wrote on 2/15/2004, 9:52 AM
Laz,
Yes, 120gb fat32. Primary hdd is 5400rpm, secondary hdd is 7200rpm.
Don't know what prb's are.

Tom
laz wrote on 2/16/2004, 2:20 AM
If your os is xp then converting 120gb hd to ntsf may improve things. If you're 98 then partitioning into smaller chunks, say 3 partitions, may be better. (xp likes ntsf better than fat32, and 98 has probs dealing with larger partitions).
KTA wrote on 2/16/2004, 5:41 PM
Thanks,
Using 1 partition for 98se.
Thought about upgrading to XP but not sure yet.

I will probably try 3 partition to see if it works better.
Tom