GH2 DO NOT POST SEPARATE THREADS: GH2 Hack | Questions and Answers Thread

Soon to be v6. Use v5 for now -
Quantum found that even though bitrate params couldn't be raised anymore (seaquake had ideal buffer balance on the gh2's bitrate pipeline), just selecting AQ4 automatically makes the gh2 'smarter' in rendering the shadows w/ available bitrate (finer grain). AQ4 says: aim for first class detail at all brightness levels, as a starting point.

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Sage said:
Soon to be v6. Use v5 for now -
Quantum found that even though bitrate params couldn't be raised anymore (seaquake had ideal buffer balance on the gh2's bitrate pipeline), just selecting AQ4 automatically makes the gh2 'smarter' in rendering the shadows w/ available bitrate (finer grain). AQ4 says: aim for first class detail at all brightness levels, as a starting point.
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I am most excited about the changes in grain patterns that are occurring. Being able to see an immediate difference in this area compared to seaQuake was quite a surprise. It inadvertently affects how useful ETC mode becomes, as well, and boy do I ever want it to be as useful as possible. Also, of course, it's making the conversion to higher quality finishing formats much more plausible.
 
What is AQ4? Aquamotion? Is that a separate hack (like Seaquake or Quantum...or am I grouping those correctly as equals?) Or is AQ a setting within a hack?

Is Quantum v5 compatible with 30MB/s Sandisk extreme cards? Or only the 95MB/s cards?

I was asking specifically about v2 because Kholi had mentioned somewhere he wasn't using v5 due to having these 30MB/s cards.

Your talk about noise improvements is awesome. I just bought the 100-300 Lumix for wildlife and being able to use ETC mode and not have significant noise degradation would be huge.
 
Have not used it yet but I believe it just creates a huge oxymoron....in the form of "cleaner noise." Meaning it's not noise free but the kind of noise it leaves behind does not degrade the image. So you can remove it at will without any hit on image detail or quality. Or you can keep it in there because it looks dam good as is with its very fine grain.

It's funny...a few years back I used to associate that type of fine grain with much higher end cameras out of my reach. But here we are...

Oh...and AQ4 is a settiing within a hack.
 
Ryan Farnes said:
What is AQ4? Aquamotion? Is that a separate hack (like Seaquake or Quantum...or am I grouping those correctly as equals?) Or is AQ a setting within a hack?

Is Quantum v5 compatible with 30MB/s Sandisk extreme cards? Or only the 95MB/s cards?

I was asking specifically about v2 because Kholi had mentioned somewhere he wasn't using v5 due to having these 30MB/s cards.

Your talk about noise improvements is awesome. I just bought the 100-300 Lumix for wildlife and being able to use ETC mode and not have significant noise degradation would be huge.
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here. i dug up one of Sage's replies to my same question:

AQ applies to quantization. Quantization deals with the roughness with which a spectrum of possible values is represented. If the 'steps' of color/luma a pixel/block of pixels can be limited to fewer, less data can be used to represent the same image (albeit without subtle beauty). The AQ affects a table in the encoder which specifies what variation of values can be used to represent given parts of the image (shadows, simple gradients, complex detail etc.). In ptool v3.62, VK implemented an auto adjustment of the table to keep all parts in balance while attributing more bitrate according to the original table's distribution. Before, the encoder would simply refuse to use more bitrate when there was plenty left to make the image more accurate. AQ was perhaps the biggest change VK has yet implemented, and required a lot of careful work on his part. It radically changed the image to be incredibly subtle per pixel, attaining a level of image quality that was never possible with simple hacks - a level of quality typically associated with cinema cameras. GOP also affects quantization, as I believe I frames are allowed superior quantization levels. AQ3 seems to be the point at which the image really transforms. A higher aq commands significantly more bitrate, and so requires a rewrite of patch params to allow it to improve image, rather than degrade it.
 
So I'm running Quantam V2 at the moment, and i just realized that i can't activate 720p mode.... REC MODE is greyed out in both Cinema mode and manual movie mode. Is something up?
 
Andromeda like hardware hack for GH2?

Andromeda like hardware hack for GH2?

Has anybody ever considered looking into hacking the hardware of the GH2, to do something similar to the DVX andromeda? Basically by-pass the codec board, and output uncompressed video straight from the camera. I've been putting some thought into it, but I don't have much experience with C++ to code control and recording software.

Should be as simple as splitting off prior to the codec board, and putting the signal into a Thunderbolt/mini displayport cable. Should be able to divide up each color channel and run each over their own "lane" on the cable. And then multiplex the audio over the 4th lane, and time code over the Aux channel. I'm not a hardware engineer, so I could be off there, not sure.


I found this:

http://www.ite.com.tw/EN/products_more.aspx?CategoryID=1&ID=2,87

Not sure if that would be going the right direction.
 
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Been Away for a While, Has the 'Hack' been upgraded to the New Firmware?

Been Away for a While, Has the 'Hack' been upgraded to the New Firmware?

Hello,

A few weeks ago A read the hack was close to being ported to the new Panasonic firmware. I am guessing it is not as I can not find any posts about it here or on Personal View but I thought I would ask. Thanks.
 
Via HDMI and the proper avisynth script you can record uncompressed today. There´s a thread right here, sticky.
 
JackBayer said:
Via HDMI and the proper avisynth script you can record uncompressed today. There´s a thread right here, sticky.
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Far to much post work. I looked at it, not worth it in my opinion. And you don't get raw data or 4:4:4. And I thought the current HDMI port wasn't technically uncompressed. So, one of the hacks would be a better option then the current HDMI output.
 
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GH2 Hack?

GH2 Hack?

I am sure that this had been covered before,but can not locate...are ALL GH2's hackable to Driftwood firmware or only certain versions/revs?

Thanks.
 
Gh2 hack version display in camera

Gh2 hack version display in camera

When you hack a GH2...what does the version info show in the camera?

ie. If you picked up a GH2..can you tell if it has been hacked?
 
You may be able to tell by checking the software version number. LIkely that it has been hacked if the version is above 1.1, but you may want to cross reference that info with someone more knowledgeable.
 
Shooter said:
When you hack a GH2...what does the version info show in the camera?

ie. If you picked up a GH2..can you tell if it has been hacked?
Click to expand...

GH2vk body firmware still says ver. 1.0.

There's really no tell tale it's hacked other than checking the bit rate of the footage and record time on the SD card.
 
Panasonic GX-1. Hackable? Can the GH-2 hack work with it?

Panasonic GX-1. Hackable? Can the GH-2 hack work with it?

Hi all,

I was looking into purchasing a GH2 but more interesting for my kind of usage looks to be the GX-1:

http://panasonic.net/avc/lumix/systemcamera/gms/gx1/index.html

It has the perfect form factor for my urban photography- non intrusive small form factor- and seems to actually be a GH2 in a small form factor without the limitations of the GF series. Vitaly or other forum members familiar with the hack, do you think this is workable for this model? It looks like it has native 25P, which is great for pal users. Seems like its limited to 30p for NTSC, though. But its full HD...

In video, this would be an excellent camera for those no permit shots or POV shots! And if it has the potential of the GH2 in video, it can be the ultimate and first ever guerrilla pocket cinema camera...

What do you think?
 
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