Roman Pytkin Pekarek wrote:Anybody know any converter USB-C webcam to HDMI ?
I don't think this is really possible without using a computer. The issue is that the USB Video Class (UVC) specification (which is what the ATEM Mini and other webcams use) actually has a lot of flexibility in terms of the video format used.
For example, USB Video Class (UVC) devices are allowed to have a wide range of video resolutions and aspect ratios, they are not constrained to broadcast standards that are common for HDMI outputs. Similarly UVC devices are allowed to have frame rates (like 15fps) that are different from what you would expect from an HDMI output. So to handle these cases properly would probably require some video standards conversion.
But the bigger issue is that the USB Video Class specifications support several different compression options, including MJPEG, H.264, MPEG2 Transport Stream, and VP8 (in addition to uncompressed video). So a general purpose USB webcam to HDMI converter would need to be capable of decompressing all of these formats and converting them to an uncompressed HDMI output.
I suppose it would theoretically be possible to build such a special purpose UVC to HDMI converter, but it's probably much easier just to use a computer to do this, since all major operating systems already have built-in UVC video drivers and support for decompressing a wide set of video codecs.
You might even be able to use something like a Raspberry Pi for this, as it includes UVC (webcam) drivers and you could use something like mjpg-streamer with a web browser or guvcview to output this incoming video as full screen to the HDMI port. I'm not sure whether the Raspberry Pi is powerful enough to decode an MJPEG stream at full resolution and frame rate though. There are other small form factor computers like the Intel Compute Stick that are quite a bit more powerful and might fare better (although they are also more expensive)