GH4 10 bit videos are coming

V

Vesku

Well-known member
New TVs can play 10bit 4k HEVC videos easily, even at 60P. HDR and 4k bluray is coming. I have watched 10bit 4k 60P video files with my 65 Inch Panasonic TV from SD card and the quality is something I have never seen. Very wide gamut, contrast and clarity and absolutely no banding even with extreme settings. Perfect color gradations...

Have you tried to make those kind of videos? Is the video industry going to 10bit world? How can I make 10bit HEVC videos? What video editor renders 10bit HEVC? GH4 can shoot 10bit.

It is the same story with photos. Now we have 8bit JPG but what format must I use if I want to see more colors? 16bit TIFF or PSD with huge file sizes? Is the HEVC slideshow the only option?
 
10-bit still seems to be bleeding edge for the non-pro crowd. for editing, there are several hurdles. one needs an editor that can process end to end at 10-bit, you need a graphics card that can process and OUTPUT real 10-bit, then a monitor that can actually display real 10bit and not the faker 8bit pretending to output 10-bit - which is what most sub $1000 monitors seem to do.

Sadly, I use Vegas, which is 8bit in and out ( I read), lack the graphics card for 10-bit (Titan), and a monitor that is 4k but iffy on the BIT front: says 1 billion colors, but vague how to get there, so, no, I have not successfully messed with 10-bit
 
How about RAW video formats or Prores? Arent they 10bit or more? Do you actually need a 10bit monitor to edit 10 bit material? Just encode a final 10bit HEVC files from RAW and watch those with 10 bit TV media player.
 
wwjd said:
I use Vegas, which is 8bit in and out
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You can set your Vegas time-line to 32-bit floating-point format ( instead of 8-bit ) and then use a higher bit-depth CODEC when exporting your finished work. Vegas has had this capability for a very long time.
 
Vesku said:
Do you actually need a 10bit monitor to edit 10 bit material?
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I guess that would depend on what you mean by "edit". You don't need full 10 bit to make cuts, but if you're trying to do anything subtle with color or effects, I would think that it would be helpful to be able to see it, rather than working blind. I guess if you were determined, you could make your changes, render your output to a format your TV could take as an input, take it to a TV that could actually display it and have a look, then return to your editing suite and try again. Re-iterate until done. But that way insanity lies. Just sayin'.
 
TheDingo said:
You can set your Vegas time-line to 32-bit floating-point format ( instead of 8-bit ) and then use a higher bit-depth CODEC when exporting your finished work. Vegas has had this capability for a very long time.
Click to expand...

I was thinking full 10-bit monitoring path. Vegas only puts out 8-bit monitoring, doesn't it? This would affect correction/grading choices.
 
wwjd said:
I was thinking full 10-bit monitoring path. Vegas only puts out 8-bit monitoring, doesn't it? This would affect correction/grading choices.
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Thats what a good HD-SDI card and broadcast monitor are for. Up until Apple OSX El Capitan (the version that just came out) Apple was also a 8 bit only display kind of world. The only way to view 10bit with Apple software was with a proper HD-SDI broadcast monitor or at least a 10bit monitor that could take in a HD-SDI or HDMI signal from a video I/O card. Now that Apple finally supports a 10bit OSX and the new iMac screens are 10bit there is finally a solution to grade 10bit without the need to have an external monitor.

Same situation with Vegas. Getting a device like a Blackmagic card and a 10bit monitor solves your grading issues and honestly the more accurate way to grade anyway.
 
Do you mean an SDI converter card from blakcmagic? My monitor claims 10-bit and I am using Display Port but the Nvidia I have does not output 10-bit. I think.
 
Editing on a 10-bit display isn't really important, even if your source video and final delivery are 10-bit. RGB 8-bit banding is not terribly noticeable. You need to try really hard to create images that exhibit 8-bit RGB banding. For anyone with a 10-bit capable video adapter and monitor, here's a demo Windows application that shows the difference between 8 bits and 10 bits: http://www.necdisplay.com/monitor-software

The real value of 10-bit video is for capture or display of video with a wide gamut and/or extended dynamic range. 8 bits isn't quite sufficient to represent a wide gamut HDR image without visible banding. Ideally you should capture with higher precision than you deliver, which minimizes banding and color precision errors in the final output. E.g., capture with 10 bits for delivery in 8 bits; capture with 12+ bits for delivery in 10 bits.

BTW, Sony Vegas Pro has a very good 32-bit pipeline. It reads and writes files with the highest possible precision, converting between RGB and Y'CbCr in 32 bits. And nearly all of its filters operate in 32-bit.

P.P.S., It is important to distinguish between 8-bit RGB and 8-bit Y'CbCr. 8-bit RGB has double chroma precision of 8-bit Y'CbCr.
 
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wwjd said:
I was thinking full 10-bit monitoring path. Vegas only puts out 8-bit monitoring, doesn't it?
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I have no idea. I had always assumed that your video card and monitor was the real limitation here, not Vegas itself. There are a fair number of 10-bit higher end graphics monitors ( about $1,000+ ) made for photography and graphic design, and I had always thought that these would also work with Vegas to show a 10-bit image.
 
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