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AVCHD: Stable settings
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  • @swen24
    "The idea to set top/bottom values to double comes from reading in some topic here."

    Actually doubling the high/low for 1080 24P was the first thing I did intuitively within 10 minutes of Vitaliy releasing the ptool so you probably read that on one of my posts. I also tried 2.2x but it seemed to break it. Were you able to go higher than a doubling of the high/lows and get a stable patch? I've only been able to go to 2x so far on all modes and still have stability.
  • @feha

    "does not "auto-split" files over 4GB,"

    I get same problem with my 65m settings. I wish I could understand why. I'm using Dane-Elec 32GB Class 10 cards. Is anyone getting files to span on 32GB cards, if so in what mode and what kind of card?

  • @cbrandin

    "Shouldn't a death chart have color?"

    That's a great idea. Could you make one up maybe using the existing monochrome and adding the color? I found with the GH1 when using the monochrome star chart as a 'death' chart that it would the patches more than shooting leaves/flowers moving in a breeze.

  • Sry, I thought only the link should show up not beeing embedded.
  • I have uploaded the 24H 10sec mts file to vimeo used in my sete tests see post above
  • Shouldn't a death chart have color? A monochrome death chart will stress luma macroblock components, but not chroma ones. Perhaps having some sort of rainbow gradation (including gray) across the pattern would be better.

    Chris
  • @kavadni
    yes! Simply click on the letter of Ptools 3.61D
  • They are input to Vitaliy's Ptool 3.61d (plase in same folder as program).
    see: http://www.personal-view.com/talks/discussion/414/ptool-3.61d-topic
    Read all instructions before use! And scan pearlier posts.
  • I apologise for naivety.

    Are thes ini files mean't to be loaded, if so how?

    Edit, Found it .. shift click on the alphabet letters :)
  • @Tomaso

    Great, this works even with my transcend class 6, 32GB continuous recording no "break" :-)
  • I tested Sven settings. I shot a quite busi landscape with 1/3 windy water, 1/3 windy trees, 1/3 sky
    24H had the first GOP with low bitrate giving a blocky image for ½ sek. The other modes were OK.
    I modified the settings and now the same landscape is OK for all modes 24H, 24L, FSH, FH, SH and H.
    sete StreamParser all modes.zip
    697K
  • With my latest settings 1080i/50 bitrate 32Mbps:
    Tested with kae "death chart" shoot over 1 hour,
    SD: SanDisk 16 GB class10 Extreme / 30mb/s.
    No motion, files are 3.99 GB auto split (4 of them , about 17-18 min each ) ...
    No crashes ...
    Will be testing same with class 6 32GB transcend ...

    Edit:
    Transcend class 6 32GB, works well but it does not "auto-split" files over 4GB,
    it stops so you must push a record button again ...
    the same works OK with SanDisk class 10 16GB constant recording without break ...
    Can anyone explain this ?
    setd.zip
    377B
  • can somebody post an A-B comparison of the standard 24p bitrate to a hacked bitrate where it really shows an improvement? :) I just cant seem to find a situation where I'm dissatisfied with the standard bitrate! :) - 24H that is.
  • @ aljimenez
    I have not tested ETC.

    @kae
    The idea to set top/bottom values to double comes from reading in some toppic here.
    First i set Bitrate also to 32/44 but that does not work for me, like many other tests.
    I know there is much more to do in testing. But i think here are some people, like me, using kit lens and only want a better quality with a setting that does not crash in most scenes.
    We are testers and i think nobody has a "copyright" of any setting. :-)

    @ Shield
    in 24p you can use a much higher bitrate, only for me 32Mbit is enough
  • @kae woah, lots of detail there! I've found shooting close-ups of the pixels on my LCD monitor a good way to get high bitrates/crash things ;)
  • @Ptchaw
    'What are you using as a death chart?'

    This bad boy here...

    And I think by Thursday (L.A. time) I'll be able to post a combo settings file here that gives the same 65M in 24P while giving stable 35Mb/s in 1080i and 720P modes with 12 GOP. It's now up for testing in the low GOP thread.
    new codec tests chart PAPPASARTS.jpg
    1920 x 1224 - 2M
  • @swen24 - thanks, these settings are perfect and I don't see any glitches in the beginning. Can't really see a difference for 24p, but I should see an improvement for 29.97 mode for sure. Overall getting 29.4 megabit on all settings, but I haven't tried any high detail scenes yet. (Just hacked my GH2).
  • @surfr1121
    Just put the file (named seta.ini, setb.ini, etc.) into the same folder as the ptool361.exe application before launching it. The settings will become available by clicking on the corresponding circular button at the bottom of the window after you load the firmware file.
  • nevermind I figured it out... hehe
  • @kae Cheers, sorry if that came across as argumentative, but if they're stable... :P

    I can second those settings as being stable, at least I was unable to make them fall over. What are you using as a death chart?
  • I feel like an idiot, I'm trying to load the settings files that people are posting into ptool but I can't seem to figure it out. How exactly do I load them? I am on a mac, does that make a difference if someone creates a settings file on a windows?
  • In the spirit of ""Stable is anything that do not result in card speed errors or freezing" the following seem pretty damn 'stable' at this point.

    These are the 65M Extreme settings and ONLY affect 1080 24P at 3 GOP - all other modes are set to stock (except 1080i/50 as the GOP is locked to the 24P GOP).

    You can then modify the other mode settings at will. The 65M extreme settings are targeted at the digital filmmaker who is looking for the best performance and highest quality out of the GH2 in 24P. It IS NOT targeted at the event shooter who needs to do hour long takes, etc.

    Sometimes in 1080 24P I can only write a 4 gig file if writing the death chart, it MAY not span. This will give you roughly 7min 13 secs on the death chart and probably 10 minute takes on normal shots (similar to film). More than enough for a filmmaker but lousy for an event shooter. On shots with a normal data rate of 58-60 mb/s with these same settings it's spanning fine.

    The 7 minute death chart clips MAY not play back in your cameras but most NORMAL footage in this mode will.

    Please start with a freshly formatted Class 10 card. To get JUST these 65M 1080 24P 3 GOP in your INIs all you need to change are these settings:

    Video Bitrate 24H=65000000
    Video Bitrate 24L=35000000
    1080i50 and 1080p24 GOP Size=3
    Video buffer 24p=0x3600000
    1080p24 High Top Setting=42418
    1080p24 High Bottom Setting=29692
    1080p24 Low Top Setting=31178
    1080p24 Low Bottom Setting=21824

    If you want GOP 6 or 12 just change '1080i50 and 1080p24 GOP Size=' (GOP of 2, 4 and 5 will not work in 24P).

    UPDATE: July 30 - Just did a 30 minute drive test inspired by jfro with the 65mb/s settings in heavy traffic, 14-140 set to wide, blue sky, lots of trees on each side of freeway, camera angled a bit down to record every groove, divet and pothole, OIS on, Dynamic mode with every setting at 0, 320iso, ND6, F 6.3, auto shutter, GH2 was hot in direct sunlight mounted on the dash of a SMART on the I5, the bumpiest freeway in California and the file spanned perfectly, never glitched. Played back perfect in USB slot of Sony Blu-ray BDP-BX57 to HDTV and on desktop and in-cam. Indistinguishable from film for me at these settings, could shoot driving plates for process with these settings for a feature in a heartbeat.

    I'm convinced now if you are getting write errors with this 1080 24p setting it's your card.
    KAE65M24P3GOPOtherModesSTOCK.zip
    385B
    KAEDRIVETEST57Mbs108024P3GOP65MBsExtremeSettings14_140OIS.JPG
    1273 x 667 - 166K
  • @Ptchaw

    Look, nobody would love these settings to be called 'stable' more than me, I love them. I'm getting 7 minute writes of the death chart at 64Mb/s with no problems. I'm just waiting for a few others to test before I post them on this thread. They are posted now over on the Extreme AVCHD settings thread.

    Edit: svart couldn't break them and I trust him so I posted below.
  • @kae If he's tested the settings on high detail scenes with a non-legacy lens without crashing/memory card problems, I think its fair enough to call it stable
  • @swen24 Thanks for sharing your settings. Did you test recording movies and photos with ETC on?