@jfro The latest Quantum patch has a totally usable 24L 64mbps spanning setting.

@driftwood 24H and 24L files uploaded... nice work man!

Well Guys... I don't know what to believe anymore. I was sitting on my couch watching TV and decided to test the file spanning one more time. I use SeaQuake patch with 24H at 166mbs and 24L at 100mbs. First I tried my Sandisk Extreme HD 30mbs and it stopped at usual 4GB and did not span. Then I tried to humor myself by putting my Transcend 64GB SDXC class 10 with 20+ mbs. Wouldn't you know the files spanned four times and going until I stopped at 19 minutes using both 24H 166mbs and 24L 100mbs with no problems. I know it had failed before but not this time. I checked the bitrates using Slash Lite and they were at the correct bitrate and sustaining. I will try it again outside on Saturday just to verify that this was not a fluke.

Any Clipwrap users/or people with PsF problems? rewrapping 1080i60/50 interlaced footage seems better than ever...its just been updated.

Some rewrapped clips are playing back with stuttering or smearing video when users have Perian or avc1Decoder.component installed on their system. They suggest to uninstall all third party AVC or h264 playback components.

But they seem to work great in Quicktime now.

@driftwood. Thanks for the update on Quantum v2 beta. Will try it out soon.

I'm assuming the 1080 24p H and L are connected so it would be impossible to use a lower rate GOP3 on the L setting. Am I correct on this?

Also, I have been trying out your spammyBitchup and I was wondering if I just changed the L setting on the 1080 25p down from 66000000 to 56000000 or so, would that work or are there other settings needed to reduce the average bit rate?

For some extended recording time per GB, might I modify spammyBitchup with a gop 3 change only?



Thanks for your sharing and tireless work on the hack and GH2 !!!!!

I just tried changing @driftwood's spammyBitchup from GOP1 to GOP3 and added the 2fps mjpeg settings. In comparing the charts to the KAE July 2011 GOP 3 settings, the main difference (although the i frames are pretty similar) is in KAI's gop 3, there are 3 B frames around 96000 Bytes. On the SpammyBitch GOP 3 change, I frames are similar to KAI's gop 3, but there are no B frames, but instead their are P frames @ around 150,000 Bytes.

Is there a quick read on the effects of I and B frames regarding motion/ no motion shooting? Via wikipedia, it seems that the B frames are smaller than the P frames and that shows in my charts although the footage was not very similar.

Overall files are a little bigger than KAI's july settings (with spammyBitch goverted to GOP3), but still get about 3-4 mintues per gig and footage at first look looks pretty good. Gonna do some more shooting, but would like to figure out if the B or P frames are more desireable and how to get them in or out via the hack.

My first test with New QUANTUM ver 2:
24 P H: great quality- Less noise than ver 1.
24 L: No tested yet
1080i: I can't understand thw right workflow (I think it's a malignant PsF- Premiere 5.5 read the file like interlaced.)
720 MJPEG upscaled to 2k: Visible noise in chrominance channel. Very problematic to play in my windows players: VLC, Cyberlink and windows media. Only run in quicktime

@driftwood, I'm a PC, but I looked at that software. It seems like it would only convert the container for AVCHD to Quicktime. How would this affect the clip frame rate (60i -> 30p)?

@FGCU
1/ No - the 'L' Cinema 1080p24 setting is lowered bitrate GOP1 to around the quality of the AQuamotion/SpanMyGopUp - to enable spanning and long recording. This was confirmed as a working possibility by @balazer and so far it looks good without underruns / overflows. So thanks to him.
2/ The H setting is still the hi quality of seaquake adjusted (with new encoder settings) to run AQ4 (seaquake was AQ3). We need to see which one is best so report back your findings.
3/ To access MJPEG mode, goto 'Creative Mode' and 'OK' then go to REC MODE and 'OK' the bottom setting 'Motion JPEG'. Then goto 'REC QUALITY' where you'll find 4 modes. HD mode = Reference 2K (2048 x 1152) and VGA Mode = 2K container (2048 x 1080). The other two settings in 'REC MODE' can't be touched by ptools so are irrelevant.

Hope this helps. :-)

@jfro I'll try and answer both your thread comments:
1/ 1080p24 H and L are both INTRA GOP1 - sorry (better than GOP3).
2/ 56000000 should work without underflows / overflows on the L setting only. Keep the H setting high if you try a very low bitrate on the H it will fail / produce poor i frames.
3/ extended times: Yes, go ahead and try changing GOP1 to GOP3 but you'll get very high P frames - the saving will be neglible on H setting, but better on L setting. ;-)
4/ P frames predict to the next i frame, B frames can predict backwards and forwards and are lower than in size than P frames. To achieve B frames, turn encoder setting 1 = default (not 2). Driftwood Hi quality GOP3 patches have already been made in the past using P and B frames and can be found on one of the low gop threads (some time ago!) you could always adjust those!
5/ Test all settings and check graphs with Streamparser (look for cadence issues where the graph goes strange) and test on the various death charts like Pappas/sStray's colour chart discussed throughout these threads (use search)

Hope that helps you. :-)

Nick

@pchristoph Hi mate, try 'Quantum' BETA 2 and test the L setting - should be very close to spanmygopup/AQuamotion2. I'm still fine tuning the setting and will probably tune it till it reaches slightly better quality than AQuamotion v2 and at AQ4!
The H setting should in theory be better than seAQuake but needs testing. Looks better to me on streameye macroblocks, but all situations need testing.
Hope youre well & good, Nick :-)

@Driftwood
Do you think that you'll be able to get similar clean images in Mjpeg than Avchd? I guess that MJPEG codec efficiency never will get avchd quality .

For now, in my opinion, GH2 Mjpeg codec -in HD size- is in a very preliminary phase ("MJPEG is in its infancy " Sir Driftwood said)