I use xvid to distribute copies of home movies to relatives, putting about an hour of footage on a 700MB CD. The quality from the last stable build Koepi provides is surprisingly good - reasonably crisp images, with an acceptable amount of 'jpeg-like' artifacting. I've used many of the unstable builds produced since then, and none have matched the quality of the stable version - the output always looks much more grainy, rather like I was watching through a mesh (not a great description I know!) I've tried switching on or off all manner of settings (qpel etc) and nothing seems to get the unstable close to stable for quality. Yet on the forum I read comments about how close the quality is to a 1.0 release. I'm not at all dissatisfied with the quality from stable, just puzzled as to what I might be doing wrong (a search here and through google hasn't shown me my mistake). All comments gratefully received! Cheers, Paul
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I don't know how verloren captured his 'home movies', but most camera footage, whether captured or via DVB tend to head towards the 2-3Mbit side of things. 1st pass can often be 4-5mbits at 640x480 ish resolutions, so 1 hour of most footage in 1 CD I would say is a medium bitrate for Xvid, and would have thought that B-frames would definately help. At high resolutions Qpel tends to be more trouble than it's worth for me. Can you assure me that you have not just ticked every box in koepi's latest and tell us your build, settings and AVS? Oh, and The Xung's idea is probably true if you sending interlaced stuff to XviD.
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Interlacing seems a bit wrong at the moment in dev builds. Suggest a stable build with matrix. Look for wotef's post a bit down. Should give you nice big quant 2 files.
sam_b, Thanks, I've downed the zip and will test. Is there any disadvantage in encoding interlaced video with Xvid interlace support off? Thanks again, Regards, Owen
Yeah, big. Don't do it. Oh, I meant the 78ers matrix from the zip BTW.
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RE: Unstable quality not as good as stable?
