a really dumb question - getting ready for a flameing !!

[Athlon]

Guys

first off, thanx for all the great advice posted here ( maybe i am kissing ass because i am about to ask a really dumb question )

but why when i capture with Virtualdub are the file sizes huge, I dont just mean huge, i mean massive !! i am talking 200+meg for a 10 second clip !! and why when i capture with something different, like Inter Wincoder is an MPEG of the same res, tiny in comparrison ??

does the file size change if you convert the captured AVI to MPEG

i better go put my flame proof suit on ...

[fmctm1sw]

but why when i capture with Virtualdub are the file sizes huge, I dont just mean huge, i mean massive !! i am talking 200+meg for a 10 second clip !! and why when i capture with something different, like Inter Wincoder is an MPEG of the same res, tiny in comparrison ??

does the file size change if you convert the captured AVI to MPEG

i better go put my flame proof suit on ...

Uncompressed AVI files are HUGE. You can use compression like huffy or picvideo to make them smaller. An MPG file will be much smaller....

[Athlon]

thanx for the advice ....

i use huffy, are selected if anyway ... but the file size was still massive. Does Virtualdub only capture AVI ?? capturing to MPEG would be smaller

is there a guide to using it ??

[tuco1979]

thanx for the advice ....

i use huffy, are selected if anyway ... but the file size was still massive. Does Virtualdub only capture AVI ?? capturing to MPEG would be smaller

is there a guide to using it ??

vdub only does avi captures. I personally use picvideo mjpeg and I get around 4gig per hr for a 352x480 cap res. If you are capturing just to view and throw away, you can always use divx or xvid. I am able to capture with divx3 and get pretty good quality on my slow system (AMD 650.) Most, if not all mpg capture programs cost money....

[NeVeRLiFt]

If your needing help with how to video capture with Virtualdub look here...

http://www.lukesvideo.com/

[thxkid]

use divx avi and you can capture/compress with real small files with great results, I did my son Harry Potter at 2 hours and 30 minutes long with 5.02 Divx and it came out as 756MB for the entire movie and it still looks great on his 19 in. monitor and very good on his 26 in TV, I doubt it would look very good on a 32 in. though. I compressed it at 720x480 also. If I had done 352x240 it would have been even smaller, but worse quality also.

[SLK001]

Raw, uncompressed video size can easily be calculated. Take the (H)orizontal resolution, the (V)ertical resolution, the (F)ramerate, the (S)econds and the (C)olor depth per bit (in bytes) and apply them to this formula:

Size = V x H x F x S x C

So, a 720H by 480V at 30Fps for 10Secs at 3bytes Color depth (24bits) = 311MegaBytes

(Somebody check my math!)

[ranma_st]

Hi:

thxkid:

Can you tell me the parameters used to encode Harry Poter in Divx format so you get a very good 756MB file. (bitrate, res., original source ect...)

Thanks

8)
Rey

[NeVeRLiFt]

Got this off Luke's site...

Space needed per 10 minutes of video
Huffyuv 320 x 480 2.25-3.5 GB 640 x 480 4.5-7.0 GB
MJPEG Q19 320 x 480 950-1600 MB 640 x 480 1.9-3.2 GB
MJPEG Q18 320 x 480 600-1100 MB 640 x 480 1.2-2.2 GB
MJPEG Q17 320 x 480 450-850 MB 640 x 480 900-1700 MB

And for others I avg out this for 1min

VCD = 10mb
SVCD = 20mb (xvcd or xsvcd can give same quality and smaller size by about 2-5mb depending on the res and bitrate)
DivX = 6-12mb (320x240 res and it looks great on my TV as good as a SVCD easy)
WMV9 = 5 - 6.5mb (320x240 res and it looks great!)

This is straight capture no encoding.