Stable MJPEG and AVCHD settings

ptool 3.40D

ptool 3.40D

any new stable settings for this version? I have a class 6 SD card? THanks
 
My stabil settings for 1080p 24 or 25p not native are 40-46-50 with transcend class 10 card. I also tested C settings, working fine but stops recording some times at long time shots.
With both settings there is still mud in dark areas if you stress the codec for example with leaves in wind. But it's a big difference to the ammount of mud you can see with standard settings.

Is the picture mudfree with much higher settings with a faster card or is there still mud? Any experiences?
 
Stable C settings for Manual lenses and Class 6 card

Stable C settings for Manual lenses and Class 6 card

Stable C settings for Manual lenses and Class 6 card

If you have manual lenses, a class 6 card, don't want 24/25pN, then these setting will work for you as they do for me.

Passes the Pappas Screen of Death and numerous other stress tests.

The 100% error free settings for me is ...
Version compare checked
Battery mod Checked
25pN unchecked
C settings
FHD/SH 50,000,000
H unchecked
L unchecked
Overall 52,000,000
Limiting Bitrate 60,000,000
Preset Bitrate1 - 234 (default)
Preset Bitrate2 - not ticked
Mpeg Settings are the ipowell 35mbps reliable ones with 422 checked

The absolute lowest the bitrate dropped to was 21mbps, the highest was 43mbps, Average was 27 - 34Mbps.

I shot grass, trees, pinebark, rocks, sand, tripod lock off shots, whip pans waterfalls, nothing gave an error.

I could not even get Pappas Star Chart to fail , so these are what i have settled on for now and given up completely on 25pN

In SH 720p mode the bitrates were overall lower by about 3-5 mbps

I don't believe a faster card will make any difference, 24/25pN is flawed in my opinion on any card.

fernb.jpg


grasshl.jpg


This is part of the video of 40mbps files, both are 2 mins long no errors This is only a 30second sample



Video of Pappas Screen of Death ......... it kept recording for 5 mins then i turned it off. This is writing to a Class 6 card with FD manual lens 50mm f1.4 . My settings are completely stable with manual lenses.



Below is the ini file containing the settings above (delete the .txt on the end)
 

Attachments

My findings for extremely cheap Verbatim class 6 16gig SD cards in a GH1 -

Up to 28mbit works and seems to be stable (28m, 30m, 34m). The recommended settings for 32mbit (32m, 34m, 40m) cause the card write speed / crash error on demanding subjects.

I've found a good test subject for stability testing is a full frame of leaves at the top of a tree on a breezy day (the 10x zoom lens comes in handy for this). The encoder has a hard time with all the random motion of individual leaves (panning by contrast is much easier) and checking the files afterwards it seems to be using the absolute maximum bitrate for the entire clip.

It's probably why the mud problem on lower bitrates affects foliage so much, and gives a good indication of the quality improvement of higher bitrates too.
 
rambooc1 said:
Stable C settings for Manual lenses and Class 6 card

If you have manual lenses, a class 6 card, don't want 24/25pN, then these setting will work for you as they do for me.

Passes the Pappas Screen of Death and numerous other stress tests.

The 100% error free settings for me is ...
Version compare checked
Battery mod Checked
25pN unchecked
C settings
FHD/SH 50,000,000
H unchecked
L unchecked
Overall 52,000,000
Limiting Bitrate 60,000,000
Preset Bitrate1 - 234 (default)
Preset Bitrate2 - not ticked
Mpeg Settings are the ipowell 35mbps reliable ones with 422 checked

The absolute lowest the bitrate dropped to was 21mbps, the highest was 43mbps, Average was 27 - 34Mbps.

I shot grass, trees, pinebark, rocks, sand, tripod lock off shots, whip pans waterfalls, nothing gave an error.

I could not even get Pappas Star Chart to fail , so these are what i have settled on for now and given up completely on 25pN
Click to expand...

I use Class 6 Cards and the SH mode (720p) wukk make the card fail on even lower settings than the the C settings if I tried zooming in and out with the kit lens (pointing to a tree full of leaves and grass) even if i set everything on manual (aperture, shutter, iso, focus, everything). Haven't tried zooming with a full manual lens, I have an old Vivitar 70-200 mm with Canon FD mount, will try on the weekend and see what happens.

Even using FHD/SH bitrate at 40 (limiting 44, overall 50) my class 6 card would fail in SH. Wouldn't fail in FHD.

My Class 6 Card is a Transcend, and is slower than a Class 6 rated Sandisk. I am also on NTSC land so the 60 fps could require faster cards than the 50 fps, just guessing.
 
dmoreno said:
Even using FHD/SH bitrate at 40 (limiting 44, overall 50) my class 6 card would fail in SH. Wouldn't fail in FHD.
Click to expand...

Yes i'm aware of the majority of people reporting SH failing before FHD, that was a surprise to me as any time i had a failure testing higher bitrates it was always FHD that failed, so was the opposite. As you can see even my reported SH data rate is 4-5 mbps under FHD. Even with 25pN enabled SH failed much less just FHD. I almost settled on SH as my preferred mode because of it.

I have been studying the AVCHD from my HMC 152e in Steameye and it has relatively speaking the same large I Frames compared to P frames, so no clues there as to what is going on but the B Frames appear to smooth out the P Frames or keep them under control somehow. I'm not knowledgeable enough to analyze encoders but a keen eye can sometimes pick irregularities.

I'm hoping someone can come up with the solution but we seem to be depleted of testers helping now, as someone said like a Ghost town in here.

R
 
Ok ignore that, I forgot I had 25p enabled which causes it's own problems. I've just done a speed test with HD Tune on my sd card and it reports 13-14 MB/sec (not bad for the cheapest 16gig class 6 card on amazon). In theory that should be capable of 100mbps, I'm going to do some more test on my original test subject once the wind picks up (annoyingly it's perfectly still today)

brainflakes said:
My findings for extremely cheap Verbatim class 6 16gig SD cards in a GH1 -

Up to 28mbit works and seems to be stable (28m, 30m, 34m). The recommended settings for 32mbit (32m, 34m, 40m) cause the card write speed / crash error on demanding subjects.
Click to expand...
 
http://www.dvxuser.com/V6/member.php?u=38870rambooc1,

When filming Pappas' "screan of death" you should use the full screen image, the one you're testing against covers about 55% of the screen area which is not kind of "torture" test.






rambooc1 said:
Stable C settings for Manual lenses and Class 6 card

If you have manual lenses, a class 6 card, don't want 24/25pN, then these setting will work for you as they do for me.

Passes the Pappas Screen of Death and numerous other stress tests.

The 100% error free settings for me is ...
Version compare checked
Battery mod Checked
25pN unchecked
C settings
FHD/SH 50,000,000
H unchecked
L unchecked
Overall 52,000,000
Limiting Bitrate 60,000,000
Preset Bitrate1 - 234 (default)
Preset Bitrate2 - not ticked
Mpeg Settings are the ipowell 35mbps reliable ones with 422 checked

The absolute lowest the bitrate dropped to was 21mbps, the highest was 43mbps, Average was 27 - 34Mbps.

I shot grass, trees, pinebark, rocks, sand, tripod lock off shots, whip pans waterfalls, nothing gave an error.

I could not even get Pappas Star Chart to fail , so these are what i have settled on for now and given up completely on 25pN

In SH 720p mode the bitrates were overall lower by about 3-5 mbps

I don't believe a faster card will make any difference, 24/25pN is flawed in my opinion on any card.

fernb.jpg


grasshl.jpg


This is part of the video of 40mbps files, both are 2 mins long no errors This is only a 30second sample



Video of Pappas Screen of Death ......... it kept recording for 5 mins then i turned it off. This is writing to a Class 6 card with FD manual lens 50mm f1.4 . My settings are completely stable with manual lenses.



Below is the ini file containing the settings above (delete the .txt on the end)
Click to expand...
 
brainflakes said:
Ok ignore that, I forgot I had 25p enabled which causes it's own problems. I've just done a speed test with HD Tune on my sd card and it reports 13-14 MB/sec (not bad for the cheapest 16gig class 6 card on amazon). In theory that should be capable of 100mbps, I'm going to do some more test on my original test subject once the wind picks up (annoyingly it's perfectly still today)
Click to expand...

The verbatims are good (i use a 32gb that gives me little problem with 70-80 mb mjpeg)
 
abolit said:
rambooc1,

When filming Pappas' "screan of death" you should use the full screen image, the one you're testing against covers about 55% of the screen area which is not kind of "torture" test.
Click to expand...

Yes i know, that was one of many shot at different FOV's 50% - 100% and others were shot with 720p SH mode also.

I'll post the 100% coverage shot if you like tomorrow , same deal, i turned it off after 2 mins.
 
dumping audio in favor of video

dumping audio in favor of video

Has anyone tried dumping the bitrate of the audio, in order to squeeze out more image bps? I usually use separate audio recording gear, so the audio from the camera is redundant... the audio must use some bandwidth and cpu, and I was curious what image the gh1 could record if it wasn't working to record audio at the same time.
 
There is no way to go lower on audio with the current pTool, but I like your idea and it will be interesting to see if it will allow CPU to perform better on video processing.

garhodes said:
Has anyone tried dumping the bitrate of the audio, in order to squeeze out more image bps? I usually use separate audio recording gear, so the audio from the camera is redundant... the audio must use some bandwidth and cpu, and I was curious what image the gh1 could record if it wasn't working to record audio at the same time.
Click to expand...
 
Here is the setting I have recently started using. So far it has not failed me once. Not even when testing on charts. It is not the patch to achieve highest bitrate footages, but it is stable, it is native 24P, and I get around 16mbps for not so detailed scenes and 24-25mbps for high detailed scenes.

[Settings]
Prevent version compare=Checked
Third-party battery=Checked
720p30 420->422 color sampling=Checked
E1 Quality=150
E1 Table=86
E2 Quality=130
E2 Table=56
E3 Quality=115
E3 Table=26
E4 Quality=100
E4 Table=4
Native 24p/25p=Checked
Video Bitrate FHD/SH=26000000
Video Bitrate H=22000000
Video Bitrate L=18000000
Overall Bitrate=30000000
Limiting Bitrate=34000000
Preset bitrate=234

Has anyone tried to change preset bitrate yet? Are there suggested numbers I might try?
 
Last edited:
Stable Settings

Stable Settings

I usually pretty good at following mod instructions.....that said....I am getting really confused with all the different posts and settings.....its seems to me that posts for stable settings should be organized my what type of card you are using......I have the sandisk extreme 32gb 30mbs card and would like to install optimal settings.....my cam is brand new and un-modded.......I would also like the ability to return to original firmware including version number.......I am a film student and require optimal stable settings while getting the most out of this new card........someone please help!!!!!
 
if you have the sandisk 30mbs card you can use any settings really...I feel the modulr settings (you can download the setting in these very same forums) is the most optimal...especially for mjpeg
 
thanks for the response.......I could really use a step by step walkthrough for my card though......I'm just not totally getting it and i would like to change the firmware once for now and be done with it
 
Modifed setting.

[Settings]
Prevent version compare=Checked
Third-party battery=Checked
720p30 420->422 color sampling=Checked
E1 Quality=150
E1 Table=86
E2 Quality=130
E2 Table=56
E3 Quality=115
E3 Table=26
E4 Quality=100
E4 Table=4
Native 24p/25p=Checked
Video Bitrate FHD/SH=30000000
Video Bitrate H=26000000
Video Bitrate L=22000000
Overall Bitrate=34000000
Limiting Bitrate=38000000
Preset bitrate=234

Still stable. Shooting charts with no issue. I get around 29mbps in high detail and 19-20 in low detail.
 
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