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Vergleich VP8 vs. H.264

Comparison VP8 vs. H.264



Newsmeldung von slashCAM:
Mai 2010

Hier geht es zur Newsmeldung: Comparison VP8 vs. H.264




Antwort von freezer:

The test is not very accurate, it is not even the exact codec settings mentioned. In the image comparison would be synonymous interesting to know whether it is an I, P or B frame.

The Sorenson Squeeze 6 MainConcept h.264 implementation is quite ok, but my experience is not enough s.die quality of x.264 up.

Much more interesting I find the analysis of the VP8 source code through one of the x.264 Developer:
http://x264dev.multimedia.cx/?p=377

Fits to synonymous frame comparisons of different codecs:
VP8 (On2 VP8 rc8)
H.264 (x264 Recent)
H.264 Baseline Profile (Recent x264)
Theora (Recent ptalabvorm nightly)
Dirac (Schroedinger 1.0.9)
VC-1 (Microsoft VC-1 SDK)
MPEG-4 ASP (Xvid 1.2.2)

Hier sieht man deutlich, far ahead of other codecs like x264 is over.



Antwort von WoWu:

Quote:
eim image comparison would be synonymous interesting to know whether it is an I, P or B frame.

There is no longer the classic GOP structure in these codecs. An IDR, which is the I-frame still s.nähesten may appear ALLLE few frames dogs. That which is called B-frame in the codecs are in fact only slices, consisting of different (classes) and compositions of macro blocks, ie not what you described previously as a B-frame. Therefore, these (new) B-frames a very different weight than those from MPEG2 times.
The extent that such information is not comparable with the MPEG2 GOP.









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