OAK-1 streaming at max resolution

tan_oak_tester

I am testing an OAK 1 camera. OAK-1-POE-MAX-AF-C41
https://shop.luxonis.com/products/oak-1-poe?variant=46470038520031

As per the technical specification, this camera supports 10 FPS at 5312x6000 resolution

While I am able to get the frames at this resolution, I am getting them at ~1.5 FPS
I am getting a bandwidth of 550-600mbps, measured using the luxonis/oak-examplesblob/master/random-scripts/oak_bandwidth_test.py

for this reason I wanted to convert the frames into an MJPEG stream
I am able to stream from this camera at 4000x3000 at 30fps, by setting type=dai.ImgFrame.Type.NV12

but at 5312x6000 I get the following error
[Camera(0)] [error] Output image width is bigger (5312 pixels) than maximum output frame width supported by ImageManip (4056 pixels) - skipping frame

according to this, it would not be possible to stream MJPEG at this resolution, and H26X does not support >4096 anyway

Q1. I have seen in the forums that OAK4 supports MJPEG stream at 30fps at 8000x6000 resolution, why does that not encounter the same issue?
Q2. In case I want to get 10fps at 5312x6000, what requirements would I have to make, as in bandwidth, etc. ?

OskarSonc

Hi @tan_oak_tester - The 10 FPS @ 5312×6000 in the spec refers to the sensor mode, not to what you can stream over 1 GbE. At 5312×6000 you’re at 32 MP; in NV12 that’s 48 MB per frame, so 10 FPS would be 3.8 Gbps, which is far above what a 1 GbE PoE link can carry. That’s why you only see 1.5 FPS at 550–600 Mbps. The MJPEG error is a separate RVC2 hardware limit: ImageManip can’t output wider than 4056 px, and the H26x encoder is limited to 4096 px width, so you simply can’t build a 5312-wide MJPEG/H26x pipeline on OAK-1-PoE-MAX. On OAK4 (RVC4) the ISP/encoder pipeline is different and can handle 8K-class MJPEG directly, which is why 8000×6000 30 FPS is possible there but not on RVC2. Practically, on this device you’ll need to lower resolution/FPS or crop/scale to ≤4096 width; full 10 FPS at 5312×6000 is realistically an OAK4-class requirement.
Thanks
Oskar

tan_oak_tester

okay thanks, I thought I was doing something wrong and the camera could stream at 10FPS