[theora] Current state of theora & Windows port?
dan at on2.com
Sat Jul 19 15:23:23 PDT 2003
for the record, Theora has the potential to change several encoding parameters to trade off blurriness vs. blockiness and so on. However someone needs to monkey with the encoder to take advantage of this change in the bitstream.
___ Dan Miller
(++,) Founder, On2 Technologies
> -----Original Message-----
> From: Maik Merten [mailto:maikmerten at gmx.net]
> Sent: Saturday, July 19, 2003 2:48 PM
> To: theora at xiph.org
> Subject: Re: [theora] Current state of theora & Windows port?
> Markus Meyer wrote:
> > Looking at the CVS, vp32 looks fine for now, though I hope
> it delivers
> > reasonable quality.
> Opinions about VP3´s video-quality do differ. In tests done by the
> german computer-magazine "Magazin für Computertechnik" (aka as "c´t")
> VP3 fared very well and even reached higher scores than DivX or XviD.
> However, older tests at doom9.org said VP3´s quality was behind the
> quality delivered by DivX.
> VP3 tends to "blur" the image when it is running out of bits,
> in "lack of detail". Behaviour of DivX is a bit different in those
> situations - it tends to produce "block-artifacts" with sharp-edges
> instead of blurring the image.
> Personally I prefer a "smooth" image over a "blocky" image,
> so I´m very
> satisfied with VP3´s quality.
> Speaking of decoding speed: My good old AMD K6-2+ @ 500 MHz
> is capable
> to decode a ~800 KBit/s 512x240 VP3 video stream without
> frame-drops, so
> decoding speed is ok for me :-)
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