@Butt

Ahh... I think I see what you did with the high/low/bottom/top for 1080 24P - you multiplied by 2.2x which I did earlier. I actually found with a lot of testing that a simple 2x multiplier looked better but of course that's subjective. Did you ever try my last settings (attached) with just the 2x?


I am going to try your +100 MPEG in a bit.

44mbps and gop 3 looks good. But I can see moire I think

@BenjaminDUPLAIX

The moire has nothing to do with the hack or the settings. It's a limitation of the chip and the way it processes detail. It's been there on the GH1 and is on GH2.

Perhaps now that more detail is encoded moiré is more obvious...

@Angry_C
for the lowGOP Patch use Panasonic Class 10 60Mbp/s

@Butt Is it possible to change the Mjpeg framerates yet? Obviously to 24p... ;)

@svart Media Player Classic seems to play all clips from a modified GH2 just fine.

@vart
What I'm saying is that it's not completely stable.

Ahhh, I see what you mean, although my players don't choke at all. I knew about the blocky couple of frames up front but my players seem to stop playing it a little before the end. Easy workaround - just roll a little before you need to and cut a little after you need to - just like shooting film. Hopefully, we can figure out what's doing this and fix it. But I am the opposite of you. I'll take predictable quality and predictable instability (and that's what this is) any day over rock solid stability but less than optimum quality.

This was my problem with all the GH1 testers. Everyone was shying away from 24P n because once and awhile it crashed. I was shooting 48 Mb/s 1080 24P N with 3 GOP for 7 months in real world scenarios and it only crashed a couple of times with some stuttering frames. The footage was stunning - better than any of Lpowel "stable" patches without 24N. No right or wrong here, just different priorities.

Agreed though, would be great to get rid of the blockies and inability to play the last couple of seconds of the clip. I don't know what is 'choking' your players though. Processing power?

I am going to test the settings again now without:
Video Bitrate 24H ADD=70000000
Overall Bitrate=70000000
Overall Bitrate 2=54000000

which Vitaliy proved redundant to see if that makes the clips more stable. Maybe this will make a difference.

@bwhitz

WOW. Stunning! And I know how much better the 3 GOP looks without the vimeo compression. You can really light! Add some slight grain and it's indistinguishable from film. Will you attach the settings you used, I lost track of what I posted. I'm trying to see if I can eliminate the end glitch svart just posted about.

Thanks for posting them so fast! I see what I did. These had the 2.2x high/low/top/bottom multiplier instead of the 2x and I capped 24H at 50 instead of 60 mill on my most recent settings. I'm going to test these now and see if I can eliminate the end glitch. Did you have any experience with the end glitch on your footage or any problems ingesting them into FCP?

Ok. Just tested my first settings that bwhitz posted on the death chart and media player does not play the last second or so as svart revealed. But it plays the clip fine, does not stutter. So until this is solved I will stick with my latest settings (attached here with the overall bitrates deleted) as the data rate on the death chart is 59mill and the visual quality is better. In WMP at least, the clip does not stutter on playback at all but the last second or so will not play.

When I ingest these clips into the Avid (I don't have FCP) the clip transcodes fine and it seems the last second ingests. Can someone do a test shooting visual timecode or a clock to make sure? For now, I will continue shooting tests with these settings as the footage is incredible and the workaround for the head and tails glitch is simply to roll sooner and cut later. Clumsy, I know, but better than crappy 1080p footage.

Stumped as to what to try next to fix this, Vitaliy????

@svart

Just tested the above settings with audio counting up to 39 on REGULAR subject matter, not the death chart and WMP played the entire clip back fine. Also the entire clip ingested into the avid. Maybe the end glitch is more pronounced with death chart shots because it's stressing the codec so much? Did you experience end glitch problems with normal footage, death chart footage or both?