Vixia G10 HDMI output at DVinfo.net

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Canon VIXIA Series AVCHD and HDV Camcorders
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Old July 28th, 2012, 03:35 PM   #1
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Vixia G10 HDMI output

I'm assuming (That Word Again) the HDMI output on the XA10 and G10 are the same.

The colorspace seems to be a trade secret with Canon though.
Does anyone know if it's 4:2:2 or 4:2:0 ?

I'm thinking about piping mine to a Hyperdeck Shuttle.
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Old July 29th, 2012, 11:16 AM   #2
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Re: Vixia G10 HDMI output

Never mind, I finally found it.
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Old July 29th, 2012, 09:27 PM   #3
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Re: Vixia G10 HDMI output

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Originally Posted by Don Litten View Post
Never mind, I finally found it.
So what's the answer?
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Old July 29th, 2012, 10:39 PM   #4
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Re: Vixia G10 HDMI output

It's compressed AVCHD as near as I can find 4:2:0.

Kinda disappointing because it looks like all The Panasonic camcorders (not DSLR's) put out uncompressed HDMI.
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Old August 2nd, 2012, 03:24 PM   #5
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Re: Vixia G10 HDMI output

Can the difference even be seen?
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Old August 2nd, 2012, 09:12 PM   #6
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Re: Vixia G10 HDMI output

Depends on how hard you grade it, but there sure isn't worth putting a compressed video on SSD's when you can put it on SD cards.
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Old August 3rd, 2012, 09:16 AM   #7
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Re: Vixia G10 HDMI output

I think that 4:2:2 cams are the province of pro line cameras mostly, but I could be wrong. I think video shot for broadcast is supposed to be 4:2:2 if I'm not mistaken.

I almost bought the Canon XF100 partially based on the superior color space specs, but I don't shoot for broadcast. For my work the price didn't seem justified on my limited budget.
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Old August 3rd, 2012, 11:45 AM   #8
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Re: Vixia G10 HDMI output

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It's compressed AVCHD as near as I can find 4:2:0.
The HDMI standard only supports RGB 4:4:4, YCbCr 4:2:2 and YCbCr 4:4:4. See, for example, section 6.2.3 on pixel encoding on page 86 of the HDMI 1.3 specifications document.

https://engineering.purdue.edu/477gr...cification.pdf

Are you saying that the G10 and XA10 internal processing converts the image to 4:2:0 and then upsamples it to 4:2:2 before outputting it through the HDMI port?
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Old August 3rd, 2012, 05:02 PM   #9
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Re: Vixia G10 HDMI output

No, I'm saying it outputs it as 8 bit 4:2:0 through the HDMI Port.
That's the best guess by the experts, but it is Compressed AVCHD of the port.

My AC 130 puts out uncompressed 10 bit 4:2:2 which makes it near perfect for the BM Shuttle.
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Old August 3rd, 2012, 05:16 PM   #10
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Re: Vixia G10 HDMI output

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Originally Posted by Jeff Harper View Post
I think that 4:2:2 cams are the province of pro line cameras mostly, but I could be wrong. I think video shot for broadcast is supposed to be 4:2:2 if I'm not mistaken.

I almost bought the Canon XF100 partially based on the superior color space specs, but I don't shoot for broadcast. For my work the price didn't seem justified on my limited budget.
I think your right Jeff.
Since the XA10 is billed as a low end Prosumer camera, I was hoping for uncompressed 10 bit, but I think they crippled it to keep people from doing exactly what I was considering...and competing with the higher priced models.

That's the same thing Panny did with the GH2.
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