Den 08.02.2023 21:05, skrev Andrew Randrianasulu:
https://www.cnx-software.com/2022/11/07/ms2130-based-4k-hdmi-to-usb-3-0-vide...
"I learned about the video capture dongle via Mateusz Starzak <https://twitter.com/MateuszStarzak/status/1589595781971181568> who purchased a sample on Aliexpress <https://s.click.aliexpress.com/e/_Dd6uEUB> and confirmed support for uncompressed YUV @ 1080p60. He also mentioned the latency to be around 6 to 11 frames depending on the resolution with 720p input to 720p output only looking slightly faster than 1080p input to 1080p output."
My tests with the return-object Hama ms2109 uncovered it failed on FHD video due to unuseable 5 fps, while it managed 422 subsampling and 8-bit color depth. I mentioned I have ms2130 in order, yes. Reading from the ms2130 specs: Support input resolution up to 4K@30Hz; Support output resolution up to 1080P@60Hz YUY2; Support 24/30/36bit Deep color; The different way to specify color depth/color precision/bit depth: 8-bits or 10-bits is confusing. Regarding "24/30/36bit Deep color" I found the following in wikipedia: https://en.wikipedia.org/wiki/Color_depth#True_color_(24-bit) True color (24-bit) 24 bits almost always use 8 bits each of R, G, and B (8 bpc). 224 gives 16,777,216 color variations. humans can see the changes between some adjacent colors as color banding. https://en.wikipedia.org/wiki/Color_depth#Deep_color_(30-bit) Deep color (30-bit) Deep color consists of a billion or more colors.[15] 230 is 1,073,741,824. Usually this is 10 bits each of red, green, and blue (10 bpc). 36-bit Using 12 bits per color channel produces 36 bits, 68,719,476,736 colors.
well, I hope Terje's camera can be switched into hdmi progressive output mode .....
Yes, and it has already proved to do this even better than first expected, I think. Again, according to S. Mullen's handbook for V1 and FX7 (who mentioned BMD's capture cards in this context): Sony’s 3ClearVid technology is tightly integrated with Sony’s Enhanced Imaging Processor (EIP). According to Sony, the EIP works at 1920x1080 in a 4:2:2 color space. The EIP has a 2-million-pixel buffer for each of the three primary colors. When the camera is operating, the EIP generates uncompressed 1440x1080i with a 4:2:2 color space. Uncompressed 4:2:2, 8-bit, digital video plus dual-channel, PCM, 16-bit, 48kHz audio are output via the HDMI port, while 4:2:2 analog is output via component-out. Therefore, you can record 4:2:2 live HD video from the camera without MPEG-2 compression. According ot my tests FX7 created FHD 1920x080p, 8-bit 422 video.. I also tested 1440x1080 video size, which was not listed among v4l2 supported format. This format was automatically encoded as 1280x1024. So I also wondered how it was possible to get encoded (SD) 720x576 and 1280x1024, though they supported by v4l2/capture card? I think the interesting explanation also has been found in Mullen's handbook: If the HDMI handshake determines that the device can accept 1080i—then 1080i is sent. If the handshake determines that the device can only accept 480i/576i—then 480i/576i is sent.
contain few links. Of course main problem is verification ..... if they just paint them (usb connectors) blue for no reason ...:/