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uvc 4k 应用

Asked Nov 29 Modified Jan 1, 0001

Viewed 21

hardware k230

问题描述

uvc的4k应用，跑几秒钟就卡死了，UVC有没有DMA的API操作，或者能不能提供一个方案，让k230可以跑通UVC的4K 应用

硬件板卡

01studio

软件版本

CanMV_K230_01Studio_micropython_local_nncase_v2.9.0.img

edited Jan 1, 0001

celwy7

1 Answers

你好，方便贴一下程序吗？

edited Jan 1, 1970

xelll2670

answered Nov 29

MediaManager.init()
mode = UVC.video_mode(3840, 2160, UVC.FORMAT_MJPEG, 30)
succ, mode = UVC.select_video_mode(mode)
print(f"select mode success: {succ}, mode: {mode}")

UVC.start(cvt = True)
while True:
clock.tick()

img = None
while img is None:
    try:
        img = UVC.snapshot()

    except:
        print("drop frame")
        continue
img = csc.convert(img)
img.__del__()
gc.collect()

print(f"fps: {clock.fps()}")

有600个字符限制，去掉了无关的代码。我现在把帧率设置成10，程序才能跑的起来

celwy• Nov 29

方便看一下串口0的日志吗？115200的波特率

xelll• Nov 29

初始化GPIO按键...
vb common pool count 3
detect USB Camera XIFT#4k Camera
select mode success: True, mode: {"width":3840, "height":2160, "format":mjpeg, "fps":30.00}
fps: 9.144701
fps: 9.379885
fps: 9.600808
fps: 9.80873
fps: 10.00476
fps: 10.18519
fps: 10.36036
fps: 10.5217
fps: 10.6792
fps: 10.82882
fps: 10.96669
fps: 11.0979
fps: 11.22726
fps: 11.34645
fps: 11.4645
fps: 11.57324
fps: 11.68142
fps: 11.7851
fps: 11.88052
fps: 11.97605
fps: 12.06784
fps: 12.15611
现在在办公室，比现场好一点，能执行30次，因为字数限制，删掉了一部分，执行到这里就卡死了

celwy• Nov 29