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IgorC · 14th September 2008, 02:21

3 years ago On2's devs made everything possible for that VP7 could compete with x264 (revisions 2xx). They constantly were updating their codec from VP7.0.0 to VP7.0.9.
I hope On2's devs will try to do the same for vp8. Of course now VP7 has no chance to be comparable to x264. Since then there was only misc. update vp7.0.10.

I think the most important problems that VPx codecs have unstable local quality while overall quality isn't bad. VP7 has a problem with scene change. Key frames are highly quantized and rest of sequences recover details in temporal sequence. As a results there is no constant quality. Another issue is too strong deblocking filter. It's good only for very low bitrate.

To compete with x264 they must plan long time development to achieve solid and well tuned codec.

Just my opinion.

And good luck for a small company On2. They aren't MS to spread millions for VC-1 and they must face big standard.

14th September 2008, 02:21	#7 \| Link
IgorC Registered User Join Date: Apr 2004 Posts: 1,315	3 years ago On2's devs made everything possible for that VP7 could compete with x264 (revisions 2xx). They constantly were updating their codec from VP7.0.0 to VP7.0.9. I hope On2's devs will try to do the same for vp8. Of course now VP7 has no chance to be comparable to x264. Since then there was only misc. update vp7.0.10. I think the most important problems that VPx codecs have unstable local quality while overall quality isn't bad. VP7 has a problem with scene change. Key frames are highly quantized and rest of sequences recover details in temporal sequence. As a results there is no constant quality. Another issue is too strong deblocking filter. It's good only for very low bitrate. To compete with x264 they must plan long time development to achieve solid and well tuned codec. Just my opinion. And good luck for a small company On2. They aren't MS to spread millions for VC-1 and they must face big standard. Last edited by IgorC; 14th September 2008 at 02:24.