HDMI Capture Problem SOLVED - AviSynth RULES!

[Picturequest]

I have an idea. Are there any live HDMI inputs that can be used with a notebook computer?

[henryolonga]

As far as I know laptop HDMI ports are output only.

[bonobored]

I have been lurking with a sort of glazed eye, slack-jawed admiration watching you gurus speak a language that is totally alien yet somehow familiar at the same time. What you have accomplished is literally nothing short of amazing despite the occasional naysayer which I have been forced to write of as curmudgeons in the mists.

I am still not totally clear whether the magic script actually transfers the HDMI out to 4:2:2 but it doesn't really matter. A frame by frame comparison clearly shows a slight improvement in detail and a definite improvement in the shadows.

What I am wondering is will the Ninja guys be able to incorporate this magic in their recorder so any GH2 could do this on the fly. Any ideas?

Once again, much love for your dedication and hard work. The Rebel Alliance will prevail.

[PDR]

I am still not totally clear whether the magic script actually transfers the HDMI out to 4:2:2 but it doesn't really matter. A frame by frame comparison clearly shows a slight improvement in detail and a definite improvement in the shadows.

4:2:0

The HDMI chroma is messed up, full of artifacts, so the script converts to 4:2:0 to clean up the chroma

IMHO the hack makes this pretty much obsolete

[Ian-T]

4:2:0


IMHO the hack makes this pretty much obsolete

Agreed. I think all we should now focus on with this camera is having external monitoring thru HDMI.

[bonobored]

Agreed. I think all we should now focus on with this camera is having external monitoring thru HDMI.

That's certainly an option that YOU should pursue.

[Ralph B]

*What I am wondering is will the Ninja guys be able to incorporate this magic in their recorder so any GH2 could do this on the fly.

In a nutshell, no. At one point, the people at Atomos contacted me to explore the possibility of incorporating my script into the Ninja. The problem was the script requires AviSynth to run, and AviSynth requires Windows to run, and there simply isn't that type of computing power on board the Ninja. So, this must remain a post production process.

As for it being obsolete, well, that depends on the individual. The slightly different gamma of the HDMI produces a picture that "pops" more than the onboard recording.

[bonobored]

Yeah, I guess windows is an unfortunate little detail so unless there exists a viable option - too bad. My POV is that you've given us a choice and we're not tied to the in camera codec. In the sum of things, making movies is an art more than a sheer technical exercise and art is about choices. The more the better. You've expanded this amazing little cam and given us one more viable, creative option and I for one, think it's rather awesome.

[bonobored]

I found this on the Atomos site regarding the GH2:

http://atomos.com/ninja/dslr.xml

[PDR]

If anyone is still using this with mac destination, ffmpeg can encode prores now (normal 422 profile, not HQ or other flavours). So finally, one is able to encode prores on a PC