GH13 How do I know if this GH1 is hacked or not

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yingtaoshenfu

New member
Hi, there. I just got a GH1 from my friend, but he didn't tell me if he had hacked it or not. I went out and shoot something, the following is the specs of the video

General
ID : 0 (0x0)
Complete name : I:\PRIVATE\AVCHD\BDMV\STREAM\00006.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 243 MiB
Duration : 1mn 27s
Overall bit rate : 23.3 Mbps
Maximum Overall bit rate : 108 Mbps


Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Codec ID : 27
Duration : 1mn 27s
Bit rate mode : Variable
Bit rate : 22.2 Mbps
Maximum bit rate : 16.6 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.447
Stream size : 232 MiB (95%)


Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 1mn 27s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 2.01 MiB (1%)


the overall bitrate is only 23m. I often see the post about hacked GH1 titled 54mbps or even higher, so I guess this is an unhacked one?

could anyone give my a clear-cut answer about what is the watershed for hacked and unhacked gh1?

Thank you so much !
 
Max bitrate for a stock GH1 is 17Mbps...so yours appears to be hacked, although conservatively so.
 
yingtaoshenfu said:
Hi, there. I just got a GH1 from my friend, but he didn't tell me if he had hacked it or not.
Click to expand...

Check your firmware version in the GH1 SETUP menu: [VERSION DISP.] should say Ver. 0.0 if hacked.


You can film something detailed, like leaves on trees, then use StreamParser as a better representation of the bitrate which will show changes as the video progresses:

StreamParser Install.zip
 
I installed the software and tested some new footage I shot, but I don't know how to make sense of this report, can someone help me out ?



gh13.jpg
 
yingtaoshenfu said:
I installed the software and tested some new footage I shot, but I don't know how to make sense of this report, can someone help me out ?



View attachment 38417
Click to expand...

On the far right in StreamParser, click the "Switch to Time Mode" button.

Under that button, on the right side will appear numbers in pink in a column. Those represent the bitrate; for example 25.000.000 refers to 25mbps. The pink lines throughout the graph shows the bitrate changes throughout the graph/timeline of the video.

On the far left is a slider; move it up to scrunch the timeline smaller to see the whole length of the timeline or down to stretch it out and look at specific points in the timeline.
 
yingtaoshenfu - Your GH1 definitely has the hack - and appears to a version of the "100Mbps Max Latitude Patch" installed, due to the 108Mbps Maximum Overall bit rate.

htinla said:
Max bitrate for a stock GH1 is 17Mbps...so yours appears to be hacked, although conservatively so.
Click to expand...
The "Overall bit rate" depends on the detail and motion in the scene captured. I took a shot of the full moon a few days ago, and the shot (nearly 6 minutes,) read as less than 3 Megabits per second, as there was a lot of dark sky around it which the encoder took no notice of.

Phenixone said:
This is weird. the bit rate is lower than the maximum bit rate?
Click to expand...
Ignore that, it always seems to read this whatever hack is installed. look at the "Maximum Overall bit rate".
 
Ok, I got this image when I switched to timelinegh132.jpg
it seems bit rate never rise higher than 44mps, too low? I shot this footage at a birthday party, there were many "detailed" stuff there.
 
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