Data rate unchanged after patch update

P

Petanque

Active member
After uploading the "c" settings, and shooting some fast moving footage in a low-light, hi detail setting, I have transferred the footage to fcp and the data rate is as it always has been in such situations: 17.2 mb/s. Is the bitrate adjustment patch working?

Thanks.
 
doesn't sound like it but it could be very dependant on light too. How low of light are you shooting?
 
Very low, at one point complete darkness suddenly lit by the flame of a match. Also some big wides, abandoned warehouse, garbage everywhere, as well as pools of water reflecting the sky. You'd think the camera would be maxing out it's bitrate in this kind of situation.
 
in the dark stuff, you'd get low bitrates but in the wide and detailed stuff you'd get higher than 17 for sure. Something didn't take.

Can you list your exact procedure?
 
Svart said:
in the dark stuff, you'd get low bitrates but in the wide and detailed stuff you'd get higher than 17 for sure. Something didn't take.

Can you list your exact procedure?
Click to expand...
Sure:

Opened ptool v3.36, loaded Panasonic firmware 132
Clicked:

-Version change, changed value to 4 (fourth try)
-Native 24p/25p
-Video Bitrate Adjustment Simplified, changed value to 50000000
-Overall Bitrate Adjustment, changed value to 52000000
-Limiting Bitrate Adjustment, changed value to 60000000

Saved modified firmware as GH1__136.bin
Formatted SD card
Dragged firmware file to card
Put card in camera
Followed steps to update firmware
Formatted card again

The 24pN patch worked, so I know that it did have an effect on the camera. Have I miss-clicked something?
Thanks for any help.
 
hmm that looks correct. I'm not sure what is going on then.

I would take a "before" video and then apply only the bitrate settings and take an "after" video to see if it looks different.
 
I'm guessing there isn't enough detail in the picture. I've tried lots of high and low settings, and in low light darker situations its always under 20mb/s I can shoot a dark scene, iso 400 and get 15mb/s and then bump up the iso to 800 and get 25mb/s + . It would be awesome to have a constant 35mb/s in lower light situtations and of course any situation, but I don't think the codec would allow it even with the highest possible setting.
 
data rate unchanged after patch update

data rate unchanged after patch update

I can only get 17MBs as well. I've tried this a few times. Is there a step by step how to online? I must be missing something.
 
x_WOrPIG_x said:
I'm guessing there isn't enough detail in the picture. I've tried lots of high and low settings, and in low light darker situations its always under 20mb/s I can shoot a dark scene, iso 400 and get 15mb/s and then bump up the iso to 800 and get 25mb/s + . It would be awesome to have a constant 35mb/s in lower light situtations and of course any situation, but I don't think the codec would allow it even with the highest possible setting.
Click to expand...
I haven't done very scientific tests on this, but have done the tree leaves blowing in the wind while panning one... still around 17mb/s. I think there's something that's not being set right on our patches. If anyone can see what it is, or if there is a definitive test that would result in a higher data rate reading (if the patch was installed properly), please speak now!
 
I just tested with with pretty insane results. The same shots without a GOP change 50 52 60 i was getting around 15mb/s I changed the GOP ( 1080p ) to 4 with 50 52 60 and im getting around 25-30 mb/s I'll see if I can post some footage tomorrow. It might crash my card with really high detailed scenes but I'll verify that tomorrow when the sun comes out :)
 
x_WOrPIG_x said:
I just tested with with pretty insane results. The same shots without a GOP change 50 52 60 i was getting around 15mb/s I changed the GOP ( 1080p ) to 4 with 50 52 60 and im getting around 25-30 mb/s I'll see if I can post some footage tomorrow. It might crash my card with really high detailed scenes but I'll verify that tomorrow when the sun comes out :)
Click to expand...


50 52 60 with a GOP 4. Was that with 24PN or 60i wrapper?

Pappas
 
Screen grab 1080p 24pn at 39mb/s

* forgot to add i have a Sandisk EXtreme 3 16g class 10 *

-2
-2
0
0

50, 52, 60

GOP 1080 - 4

28mm 2.8 at 5.6

800 iso

shutter 1/50


Screen grab 1080p 24pn at 39mb/s
simpsonsz.jpg



1080P 24PN 25mb/s ( blue lines from the fluorescent light flicker )
beer25mbs.jpg
 
Last edited:
I seem to have the same issue. Avchd data rates fixed at around 13 MB/s. Mjpeg clips have high data rate. I'm looking at the data rate of the transcoded clip in fcp. How does one check the data rate of the native mts file on a mac?
 
the video file does have a "declared bitrate" of 17mbits in its metadata. When I use streameye its says declared bitrate 17mbits and actual max bitrate 30Mbits. I suggest you get readings from another program.
 
MR Fanny said:
the video file does have a "declared bitrate" of 17mbits in its metadata. When I use streameye its says declared bitrate 17mbits and actual max bitrate 30Mbits. I suggest you get readings from another program.
Click to expand...
A ha. Streameye is $1795.00 (one can download a free 30 day copy, which I'm doing now), is there any other program that reliably reads the data rate? Final Cut Pro does not?
 
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