Reliable In-Camera Playback Patch - V2 update for all GH1 & GF1

L

Lpowell

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Reliable In-Camera Playback Patch - updated for PTool 3.55d and higher

As you've no doubt heard, PTool 3.55d and higher have liberated all previously unhackable versions of GH1, GF1, and G2 cameras. In addition, PTool provides several new patches that I've been able to incorporate into the Reliable In-Camera Playback Patch, making it more versatile than ever.

To make use of these new features, download the latest version of PTool from the following link:

http://www.gh1-hack.info/ptool3d.zip

Version 2 of the Reliable In-Camera Playback Patch supports the following features:

* Works on all Panasonic GH1, GF1, and G2 cameras, both hacked and unhacked.

* Switchable between NTSC and PAL modes, in all interface languages.

* No 30-minute AVCHD time limit, all compatible batteries supported.

* In-camera playback available in all video modes.

* 40Mbps FHD mode - AVCHD 1920x1080 24p/25p video (interlaced) - GH1 only

* 40Mbps SH mode - AVCHD 1280x720 50p/60p video (progressive)

* 35Mbps HD mode - MJPEG 1280x720 30p video in 4:2:2 color (4:2:0 color on G2)

* 30Mbps VGA mode - MJPEG 960x720 30p video (iPad-compatible) - GH1 only

Reliable In-Camera Playback Patch Settings File:

This zipped INI file can be used to apply complete patch settings to firmware loaded into PTool. To use, unzip the INI file into the same folder as the PTool application. Launch PTool and load the firmware for GH1 v1.32, GF1 v1.22, or G2 v1.1. The settings contained in the INI file will automatically be installed in the "J" button at the bottom of the PTool main window.

Note that with the following PTool Settings File, you may at any time re-install the original Panasonic GH1 v1.32, GF1 v1.22, or G2 v1.1 firmware into the appropriate camera model. You may also copy each type of patched or original firmware to separate SD cards, and use them to quickly switch between patches as often as you like.
 

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Hey L,
I saw your post on pv, but I'm not registered there yet.

So my question is: "40Mbps FHD mode - AVCHD 1920x1080 24p/25p video (interlaced)" ???

Can you explain the interlace part, because you also wrote 24p and 25p
 
In its standard 1920x1080 FHD mode, the GH1 scans the sensor progressively at either NTSC 24p or PAL 25p. However, the AVCHD encoder then splits the 24/25p progressive video stream into an interlaced 50i/60i stream and encodes it into an MTS file. When in NTSC mode, it also adds 3:2 pulldown to the 24p stream before interlacing it into a 60i stream. Since it's a rather confusing process, the NTSC results are often described as "interlaced 1080p24" rather than 1080i60, which would hide the fact that a 24p video stream is packaged inside a 60i container.
 
lpowell..

would you say that this patch is the more reliable one compared to the blackwell native 24p patch? If my goal is for absolute reliability (transcode remove pulldown in post is okay for me)

Does the memory card fragmentation pose an issue with this patch as well? Or does memory card fragmentation always come into play when deleting clips in-camera?
 
Yes, the Reliable In-Camera Playback Patch has the track record and reputation for being the most reliable of my patches. I doubt that SD card memory fragmentation would cause it a problem.
 
lpowell, thank you for your hard work.
This patch allow to have FHD 1080p in the GF1? "* 40Mbps FHD mode - AVCHD 1920x1080 24p/25p video (interlaced)"
"
 
would you say the patch would still be equally reliable if I reduce the AVCHD bitrate to something lower?
 
Does the FHD file that comes out of the camera still need to be reverse telecined??
Just shot some footage with the new patch, and wow!!! Huge difference between un-hacked and hacked. Huge!!
Was going to wait because I only have a Kingston Class 4 card.....glad I didn't wait. Totally usable..so far.

I shot some indoor footage(not very stressful) at FHD, and dropped it into a 24p timeline in Sony Vegas Pro 9, and rendered to MP4 and looks beautiful. Took awhile to render a short clip, but it went from having a white interlaced cast over the whole video, to 24fps completely watchable video.
 
havasuphoto said:
Does the FHD file that comes out of the camera still need to be reverse telecined?
Click to expand...
Yes, the Reliable In-Camera Playback Patch produces the same type of interlaced FHD video files as the unhacked GH1. In NTSC mode (but not in PAL), the FHD videos are also telecined. The only difference is that the hack enables the AVCHD bitrate to range up to 40Mbps average, and 44Mbps peak. While it's possible to tweak the average bitrate to a lower level, the patch's peak bitrate would remain unchanged.
 
lpowell said:
Yes, the Reliable In-Camera Playback Patch produces the same type of FHD video files as the unhacked GH1. The only difference is that the hack enables the AVCHD bitrate to range up to 40Mbps average, and 44Mbps peak. While it's possible to tweak the average bitrate to a lower level, the patch's peak bitrate would remain unchanged.
Click to expand...
Media info showed the higher bit-rate, but also showed the fps as 29.97...??
Also, not sure how Sony Vegas did it, but it did.
 
lpowell said:
In its standard 1920x1080 FHD mode, the GH1 scans the sensor progressively at either NTSC 24p or PAL 25p. However, the AVCHD encoder then splits the 24/25p progressive video stream into an interlaced 50i/60i stream and encodes it into an MTS file. When in NTSC mode, it also adds 3:2 pulldown to the 24p stream before interlacing it into a 60i stream. Since it's a rather confusing process, the NTSC results are often described as "interlaced 1080p24" rather than 1080i60, which would hide the fact that a 24p video stream is packaged inside a 60i container.
Click to expand...

Also known as 1080 24PsF - 'progressive segmented frame'
 
You sir, and of course Vitaliy(!) are bloody heros!

thankyou both

my other better GH1 that wouldn't hack is now hacked :love4:
 
hey, thanks for the patch!, i have an issue though, patch is somewhat unrealiable for me and when i check the videos on mediainfo I see they're all above 60mbps, so its obviously pushing it way more than what it should, how do I fix this? any idea? :)
 
It's been crashing for me on non-detailed shots. I'm using a class 10 PNY professional card. Perhaps it's poor cards, but is it possible to take the setting from the patch but only reduce the peak and average bitrates so that it is more reliable with slower cards, and also give us additional recording time per card?
 
Question guys: I recently installed the lpowell 100mbps max lat patch on gh1.
When I put the camera(to capture video) in creative motion picture mode, avchd, rec quality - FHD, exposure M ) outside/sunny weather, the lcd screen/viewfinder goes extremely white/bright and captures video that way. I'm getting 108 mbps overall bitrate.
If I either change the rec quality on SH or shoot to still mode, then I get the natural colors and picture/video shoots fine.

Not sure if I've got one of my settings messed up or is it the patch? Any clues?
 
What's your shutter speed/F-stop/ISO??? If you have it set to manual, use a 180 degree shutter(1/50th for 24P, 1/120 for 60P), set the "histogram" to display on the LCD-I put it in the lower right corner, and expose using that-not the viewfinder. Once you have the historgram pretty much in the middle, hit record-the display should not change.
Sounds to me like you may have the all the setting correct, but, if it's on a bright sunny day, unless you're shooting at F/16, you will need a neutral density filter to block some light, to allow you to use "180-degree" shutter. Any aperture smaller than F/8, will produce less than sharp video due to Diffraction.
 
Yes, you will need some ND filters on your lens (even a polarising filter will give nearly 2 stops). I try to shoot around f8 - f9 as it gives good depth of field without comprimising image quality. Unfortunately the GH1 doesn't have "minus gain" so therefore you need to ND a lens if you plan on shooting at 1/50th sec shutter (even at 100 iso). I found that without any filters, on a sunny day I could be shooting at f18 - f20 and the iris is too far closed to be able to produce decent images without serious diffraction issues.
 
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