AVCIntra-FAQs from panasonic

mozes

I did find this link to a pdf file.
Maby people here are interested in it.
in any way, it explains some things ;-)
ftp://ftp.panasonic.com/pub/Panasonic/Drivers/PBTS/papers/AVCIntra-FAQs.pdf

hedrox

thanks! after reading this.. the gh3 should have at least that avc intra 50 codec to rival with rumored 4:2:2 mpeg2 codec in 5D.. it´s still 4:2:0 but that advanced color filtering and 10bit could do the job ..

rozroz

can someone please clarify this for me?
so the GH2 is PERMANENTLY stuck with 8-bit and 4:2:0 ?
the will be NO OPTION whatsoever to change this with hack/Panny firmware?
is it because of the codec limit or the sensor itself?

thanks

proaudio4

I'm willing to bet the GH2 can not offer 4:2:2.
I certainly wish 4:2:2 was possible, especially for green screen and post work. Red channel stair stepping can be a bitch to deal with.

Having said that, I certainly don't hear many complaining about blu-ray big name movies.
These are YCbCr 4:2:0 .

rozroz

so-
can someone please explain to me WHY it is not possible?
is it the sensor hardware? or the codec?

nomad

Most probably the image processing hardware. The sensor is analog, BTW…

rozroz

yea i meant the processor itself..
so once the hack can produce the avc Intra, it still cannot make it 10-bit or 4:2:2.
not because of the codec (Panny info above), but only because of the processor?
am i getting it right?

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