应用场景描述:使用的SDK包例程是《usb_device_video_virtual_camera》,freertos版本。原例程是将mjpeg图像通过USB上传,现在我是通过CSI驱动OV7725获取到YUV422图像,然后通过USB上传,从而实现真正的USB摄像头。
出现的问题:当电脑端未打开相机时,此时USB未传输数据时,CSI采集的图像正常(这个我是输出到LCD上看了);当打开相机后,USB将持续上传图像数据,这个过程中CSI采集的图像偶尔会出现均匀的黑色噪点。正常的图像:
USB持续上传图像时,出现噪点的图像:
Hello ,
Hope you are doing well.
Could you please write your question in english, so that I can provide better support.
Best Regards,
Sabina
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