We are trying to capture MIPI CSI-2 4 lanes at +80fps with 1080p. We can get 80fps but if we go beyond 80fps the frames per second start jumping to 120, 80, 90, randomly. Has NVIDIA or someone else tried capturing +80fps? We are using V4L2.
I was just did a test and was able to encode 1920x1080@120fps using our own camera module with gstreamer and nvcamerasrc. The resulting file played back correctly on a Mac using VLC, with resolution and frame rate reported as expected. CPU Usage was generally around 25-40% with a couple spikes. This is a Sony IMX274 sensor on CSI port 1.
I have been recently experimenting with Leopard Imaging’s IMX185 kit. There is a .dtb file for the camera provided with recent versions of L4T, however the only supported mode is 1080p30. Could you give me any guidance as to where should I start in order to configure the camera for other modes? I would be very grateful for even a bit of help, as I usually work on higher level software and this issue is kind of new to me.
@westej - My earlier comment was based on code supplied directly by Leopard Imaging with no modification on my part. Since upgrading to Jetpack 2.3.1 I have not verified this, but suspect that the 120fps modes have been removed.