dear
capture cmd： v4l2-ctl -d /dev/video0 -w --verbose --set-fmt-video=width=1920,height=1080,pixelformat=UYVY --stream-mmap --stream-count=1 --set-ctrl bypass_mode=0 --stream-to=/tmp/stream.raw
always report err：
VIDIOC_QUERYCAP: ok
VIDIOC_S_EXT_CTRLS: ok
VIDIOC_G_FMT: ok
[b]libv4l2: error setting pixformat: Invalid argument
VIDIOC_S_FMT: failed: Invalid argument[/b]
VIDIOC_REQBUFS: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 0: ok)
Format Video Capture:
Width/Height : 1928/1208
Pixel Format : 'UYVY'
Field : None
Bytes per Line : 3856
Size Image : 4658048
Colorspace : Raw
Transfer Function : Default (maps to None)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags