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I've managed to get working two OV13855-based official cameras connected to Cam1 and Cam2 following the steps in the official guide, but noticed that the frame rate of the video is greatly reduced: it's about 16.5 FPS, if the stream resolution is higher about 1280x720 and it's 25 FPS for resolution 1280x720 exactly. According to the datasheet, the theoretical frame rate is as high as 30FPS for 3840x2160 (4K), 60FPS for 1920x1080 (Full-HD) and >60FPS for 1280x720. Which looks pretty valid, as we have 30-pin FPC cable to the camera, probably 2 or 4 MIPI lanes. What's even more strange, this framerate cannot be set traditionally via caps of GStreamer pipeline.
How is it possible to set the frame rate and how to still get the expected performance from the camera interface?
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Published in 2023-6-14 16:58:20
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