Frameserving & Quality

tygrus wrote on 8/25/2004, 10:21 PM

Is there any quality advantage to frame serving to an encoder, or going uncompressed avi first then to the ancoder? I realize frameserving is a time and space saver, but is there a quality advantage as well.
thx.

Tygrus

Comments

johnmeyer wrote on 8/26/2004, 12:21 AM

There is no quality advantage when compared to going to an intermediate, uncompressed file. However, if you have a long video, even with today's large disks, you will eat up space in a hurry if you go to an uncompressed file. I am currently frameserving an 82 minute project to an external MPEG-2 encoder (actually, it is video that is being processed by an AVISynth script, into Virtualdub, which then adjusts its frame rate to 23.97, and then frameserves to the Mainconcept MPEG encoder). There is no way I would have the space for 82 minutes of uncompressed video.

Frameserving also eliminates the time require to first write and then later read the file. Given the size of uncompressed files, the time saving in not having to both write and read 200 Gbytes of information is VERY substantial.

But, as you surmise, the quality compared to using an uncompressed file, will be the same.

musman wrote on 8/26/2004, 2:13 AM

I also haven't noticed any drop in quality. Frameserving is so wonderful.

farss wrote on 8/26/2004, 3:53 AM

There is another solution available now, render using the 4:2:2 codec. Should be about as good as uncompressed without the HUGE file size. Biggest plus I can see is sometimes if you need to make a minor change the whole thing doesn't have to be rendered out to the encoder again.

Bob.

Cunhambebe wrote on 8/26/2004, 4:40 AM

Where do I get or buy that??

jetdv wrote on 8/26/2004, 6:53 AM

The frameserver software was written by Satish and can be found at www.debugmode.com