Linked by Thom Holwerda on Sun 23rd May 2010 09:41 UTC
Benchmarks Now that Google has opened up VP8, the big question is obviously how it'll hold up to H264. Of course, VP8 already wins by default because it's open source and royalty free, but that doesn't mean we should neglect the quality issue. Jan Ozer from StreamingMedia.com has put up an article comparing the two codecs, and concludes that the differences are negligible - in fact, only in some high-motion videos did H264 win out. As always, this is just one comparison and most certainly anything but conclusive. Update: Another comparison. I can't spot the difference, but then again, I'm no expert.
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H.264 vs VP8 comparison
by vpalmisano on Sun 23rd May 2010 11:29 UTC
vpalmisano
Member since:
2010-05-23

I all, here you can find a comparison between H.264 (x264 encoder) and VP8 encoded videos. We used the latest VP8 library version from webm project:

http://www.quavlive.com/video_codec_comparison

Reply Score: 7

RE: H.264 vs VP8 comparison
by Radio on Sun 23rd May 2010 11:36 in reply to "H.264 vs VP8 comparison"
Radio Member since:
2009-06-20

While you're here, could you explain why, in the shell scripts, "bitrate=15000" for x264 and "bitrate=15000000" for vp8enc?

Reply Parent Score: 1

RE[2]: H.264 vs VP8 comparison
by vpalmisano on Sun 23rd May 2010 11:42 in reply to "RE: H.264 vs VP8 comparison"
vpalmisano Member since:
2010-05-23

Because the vp8enc plugin takes the bitrate parameter as bit/s, instead x264enc takes the same parameter as kbit/s.

Reply Parent Score: 3

RE: H.264 vs VP8 comparison
by renox on Sun 23rd May 2010 12:12 in reply to "H.264 vs VP8 comparison"
renox Member since:
2005-07-06

What is strange is that while I could see some difference in Jan Ozer's test, I cannot see *any* difference on your test..
If someone would have asked me if both images were identical, I would have said yes..
If it's not a mistake then this means that the bandwidth allowed here is big enough here that both codec reproduce flawlessly the original video..

Reply Parent Score: 3

RE[2]: H.264 vs VP8 comparison
by vpalmisano on Sun 23rd May 2010 12:49 in reply to "RE: H.264 vs VP8 comparison"
vpalmisano Member since:
2010-05-23

Yes, the results are quite the same. I used the same encoding rate of this test (http://doom10.org/compare/). I will include other results on the same page soon.

Reply Parent Score: 1

RE: H.264 vs VP8 comparison
by kaiwai on Sun 23rd May 2010 14:07 in reply to "H.264 vs VP8 comparison"
kaiwai Member since:
2005-07-06

I just had a look at both and I barely notice a difference; I'm sure when in full motion the differences will be even less detectable. I am confused, therefore, why people are trying to make out that there is a massive difference between the two of them. I am sure with more optimisations artefacts will be minimised and will be offered as a viable alternative to h264.

Reply Parent Score: 2

RE[2]: H.264 vs VP8 comparison
by Neolander on Sun 23rd May 2010 14:44 in reply to "RE: H.264 vs VP8 comparison"
Neolander Member since:
2010-03-08

Media quality is not a major issue on the internet, as long as the gap is small (it's the case here). Licensing quality is one.

Remember the Unisys episode : GIF was certainly superior to JPEG in its time about compression ratio vs quality...

Reply Parent Score: 1