Nice shots! I'm planning on getting extension tubes for my FD lenses to do some macro. Sorry, off-topic. Thanks again lpowell!
Blackout-Powell Native 24p Patch - GH1 FTW!!!
- Thread starter Lpowell
- Start date
Nice shots! I'm planning on getting extension tubes for my FD lenses to do some macro. Sorry, off-topic. Thanks again lpowell!
Blackout
Veteran
The big thing that everyone is forgetting about in these tests is that they are..... NOT MOVING... start moving the camera and THIS is where the GH13 CREAM SLAUGHTERS the GH2....
Someone with a GH2 please go film a scene with this much fine detail and hand hold and move the camera:
Scenes like this on the GH2 for the whopping day I had it showed blocky mush and could not handle that level of detail with motion. Period. Done. End of discussion.
This is the video that got lpowel pming me WTF? HOW?
lp - I still think I am getting better quality than this (mostly) stable 24p hack settings.. is there anyway to push the avg bitrate up a lil higher and still keep the empty frames out?
Someone with a GH2 please go film a scene with this much fine detail and hand hold and move the camera:
Scenes like this on the GH2 for the whopping day I had it showed blocky mush and could not handle that level of detail with motion. Period. Done. End of discussion.
This is the video that got lpowel pming me WTF? HOW?
lp - I still think I am getting better quality than this (mostly) stable 24p hack settings.. is there anyway to push the avg bitrate up a lil higher and still keep the empty frames out?
With any hack the remaining time counts down too quickly. The remaining time is expecting you to be recording at 17 Mbps, the unhacked bitrate.
mattrock1988
New member
Question... is there a way to par down the bitrate for the AVCHD 1080p/24p mode so that I don't run the risk of crashing? I really don't need perfect quality, but I am more concerned about stability and I am sure I can still get great quality video well under 50 Mbps. Any advice?
mattrock1988
New member
Also... would it be possible to do 24p AVCHD or MJPEG (I don't care which format) at proper 720p (1280x720)? I just figured that this would be less stress on the GH1 in terms of bitrates spiking up. Let me know. Thank you!
If you're concerned about recording errors, I'd recommend my 40Mbps AVCHD High Reliability Patch. While it records in interlaced 24p rather than native, this patch has the strongest track record of reliability that I know of. Unfortunately, there's no good way to record 720p video at 24fps on the Panasonic G-series cameras.
The FHD/SH Bitrate patch was stable at 50M, and seemed to hit diminishing returns beyond that. It can be set as high as 52M without destabilizing the patch, but I suspect that may reduce some of its safety margin. Conclusive results with fine-grained degrees of tweaking of this sort usually require many trials using a wide range of subject matter.
Here's another quick shot demonstrating Native 24p panning across a highly-detailed scene:
mattrock1988
New member
Ok fair enough... but on your Blackout-Powell Native 24p Patch, is there a way I can lower the maximum bitrate? Do I do this through PTool and what values should I modify for AVCHD 1080p? Is the 50 Mbps a hard rule? Thanks.
While the peak bitrate of this patch cannot be reliably reduced, the average bitrate can be adjusted by changing the value in PTool's FHD/SH Bitrate patch. This sets the AVCHD encoder's target bitrate for both FHD and SH video modes and is currently set to 50M. If you lower this value, the average video bitrate will drop, but I have not found this to improve reliability at settings above 30M.
This is what I use for most live events because it is so stable and the video looks great. Also, I sometimes bring two cards with the firmware. I'll set up, use the BP patch and watch the counter. If the counter is stable, I stay in 24p. If it looks iffy, just pop in the lpowell 40 firmware card, and in one minute you are good to go. Same for outdoors vs indoors, or if I have something with detailed motion. Its a small difference.
mattrock1988
New member
Do you have a sample video I can see that has the high reliability patch installed?
Slightly more stable for me lower Bitrate Patch
Taking the BP Patch and trying different settings I came up with the following:
28 low 56 high
I could not crash the cam at ISO 400, ISO 200 crash after one minute, ISO 100 after 30 seconds
Better than 5 seconds, but not as high bitrate.
However, the indoor bitrate was the same for me, so I may use this setting indoors.
Taking the BP Patch and trying different settings I came up with the following:
28 low 56 high
I could not crash the cam at ISO 400, ISO 200 crash after one minute, ISO 100 after 30 seconds
Better than 5 seconds, but not as high bitrate.
However, the indoor bitrate was the same for me, so I may use this setting indoors.
Blackout
Veteran
By some strange method.... my clock seems to actually be accurate.... I have no idea why... this is with the 32 gig transcend class 10 card..
in theory it should be screwy and be of but perhaps that is only while recording.. after recording I think it actually checks the card space again.... but... if it is checking it for the new hacked avg rate or still 17mbit I don't know. I have been fine with 32 gig cards and shot about 3 hours or more of material...
S. Matthews
Well-known member
mine makes jumps, and is not accurate, in FHD it's like 50% of what the clock say's, while in recording 60fps it's far worse getting around 25% of the clock time(haven't shot it in a while so I'm not sure about that number). After each recording the timer goes down the right amount so for me it's kind of a gut thing of knowing around how much left i have, professional by no means but works for me.
rambooc1
Well-known member
Ok thanks, the reason i asked was, you seem to have a "SuperCam" that handles quite high bitrates without failing, so i was interested in whether this might confirm your buffer/processor/etc is somehow different and explain why some cameras can handle this new patch and others can't. My clock spins like crazy and fails easily as soon as i stop any camera movement. Based on what you say above, i guess this is a fairly good indicator of "SuperCam" status.
Compared to FHD 1080p25 mode, the PAL SH 720p50 mode tends to produce a lower average bitrate, around 30-35Mbps. This is probably due to its recording 20% fewer frames than the NTSC 720p60 mode, whose settings it shares. The 720p50 mode appears to be the most reliable of all, however, and benefits from keeping its GOP-size at 12-frames rather than lengthening it to the 1080p25 mode's 15-frames. I'm currently testing these modes and am planning to update the Blackout-Powell Native 24p Patch soon with some improved PAL settings.