Varicam 4K LT Off-speed

cortex bug
1

Using 3.1.3 b11127 and b11976 with Varicam 4K LT with footage captured in a high-speed mode, Cortex displays the image “stretched” horizontally.

According to Panasonic, the footage is AVC-Intra 4K-LT 422 and when off-speed, namely, 47.96 FPS, they do something with the mapping of the pixels to create a half-res file that is “4k x 1k”. Cortex sees the footage as 3840 x 1080 while the media XML reports the resolution as follows:

AVC-Intra4K_LT 2160 3840 10 23.98p 24/48 NonDrop 10:30:43:12 CE8048D3

From Panasonic… “The decoder needs to know how to “deBayer” the 4K-LT codec data and reassemble it as 4096 x 2160”

Attached is a note of what system have been updated to handle this codec.

This a known thing and addressed in V4? We are still truckin with v3…

image011.jpg866×711 79.3 KB

2

I don’t think this would be addressed in V4 yet, but we can certainly look into it. If you have a sample file you could provide us with that would be helpful.