Micro Cinema Camera HDMI video format

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andtess

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  • Joined: Mon Jan 20, 2020 5:08 pm
  • Real Name: Andrea Tessadri

Micro Cinema Camera HDMI video format

PostMon Jan 20, 2020 6:14 pm

I have a BlackMagic Micro Cinema Camera and I would like to know if, on the HDMI output port, video formats other than YCbCr 4:2:2 10 bits are supported.

Is the camera able to change the HDMI output format according to the EDID provided by a sink device ?
May be YCbCr 4:4:4 24 bits ?

Thanks

Andrea
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Howard Roll

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Re: Micro Cinema Camera HDMI video format

PostMon Jan 20, 2020 6:54 pm

No it can't. Why?

Uncompressed 1.5G 10 bit 4:2:2 is more than enough bandwidth.
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andtess

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  • Real Name: Andrea Tessadri

Re: Micro Cinema Camera HDMI video format

PostMon Jan 20, 2020 8:41 pm

Hi Howard,
thanks a lot for your very quick reply.
My capture pipeline is made of a Toshiba HDMI Bridge TC358743 connected via CSI-2 4 lanes to an NVidia Jetson Nano.
The problem is that HDMI bridge supports only:
A) RGB 24-bpp @60fps
B) YCbCr422 24-bpp @60fps
C) YCbCr444 24-bpp @60fps -> NOT supported by the NVidia Jetson Nano
D) (probably, but not sure, YCbCr 422 12-bit discarding last 4 data bits to become YCbCr 422 8-bit)

So I have to deal with such requirements ...

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