@humpman the new files for G2 is not working. It is only record 4096 kb before it stops and states that my card is not fast enough.

I am experimenting on using Lpowel Fast Action 3 GOP and enable min qp=0. It works but somehow it shows "blocky" images for the first second.

How does the patch going in your GH1 @kolinko? Can you make a comparison to the LPowell 75Mbit Peak Reliability for example? Thanks.

@humpman I did not try your 1080p25 i50 settings because although I am in PAL area, I want to go with 1080p24 for main scene and 720p60 for slow motion.

I did try to make use of your user.ini file with @Lpowell 75Mbits Peak Reliability patch. I set the minQPi=4, maxQPi=51, minQPp=4, and maxQPp=51 just like what @apefos did for some of his GH1 patch. It works reliably in NTSC mode when tested with the Stray's Color Death Chart. The bit rate is about 46Mbit/sec.

However, once I put the apefos's custom matrix, the GH1 will stop recording after 1 second and sometimes will locked when tested with the Stray's Color Death Chart.

So it is safe to combine the Lpowell setting with your user.ini files and the Panasonic Lumix original matrix, but I do not know if the diagonal rain etc. will occur in underexposed area when high ISO is used. I tend to keep my GH1 at ISO 640 or lower to keep the video clean.

I followed the logic of reading order from the progressive matrix and interlaced matrix. So I redesigned the GH2 progressive matrix from The End NR4 into the interlaced order of GH1, because GH1 24p is recorded inside an interlaced wrapped 60i

these matrices are designed to work in 24p recorded inside 60i wrapper only (not for native 24p, not for 50p or 60p)

@humpman try to put these matrices in your patches to perceive the image quality compared to the default panasonic matrices:

gh1 matrix I P B

0x0606080808080A0A0C0C0C0C0E0E10100A0A0E0E121214140C0C1010141418180606080808080A0A0C0C0C0C0E0E72720A0A0E0E78787E7E0C0C72727E7E9C9C0606080808080A0A0C0C0C0C0E0E72720A0A0E0E78787E7E0C0C72727E7E9C9C

gh1 matrix FallBack

0x09090C0C0C0C0F0F1212121218181B1B0F0F18182121242412121B1B242436360C0C0F0F0F0F1212151515151818B4B412121818C6C6D8D81515B4B4D8D8FCFC0C0C0F0F0F0F1212151515151818B4B412121818C6C6D8D81515B4B4D8D8FCFC

if the gh1 matrices works the same way as gh2 matrices, then each forur digits represents one pixel, one value for each two digits, the interframe and intraframe compression in hexadecimal values. there are 48 values, 3 groups of 16 values, for Y, Cr and Cb. 16 values corresponds to a 4x4 pixels matrix. this is how gh2 works and I think gh1 works the same way because both are h264.

@humpman, just to confirm - these are 50i and 60i with max bitrate of 67mbps right ? And the current wisdom is that this is better than the lpowell 100mbps patch. Sorry, I followed the discussion, but it got too confusing with the various patches being uploaded.

And diagonal rain is visible above ISO 1250 right ?

@humpman any chance they are spanning?

@humpman and would you still recommend using Auto ISO to reduce noise ?

Seems like p-frame has better compression or something, because to get similar quality i-frame it takes much more data, even more than 1920x1080 still photo. I heard here that GH1 adds unnecessary data trash in frames.

Keep the good work @humpman! I really appreciate your work.

@humpman I need to bring out my GH1. This is fantastic.. Very little FPN and the image does not fall apart as it did earlier..

@humpman

We all need to thank you.