测试V4L2兼容性
v4l2-compliance
duqs@duqs-MS-7B89:/dev$ v4l2-compliance
v4l2-compliance SHA : not available
Driver Info:
Driver name : uvcvideo
Card type : USB2.0 PC CAMERA: USB2.0 PC CAM
Bus info : usb-0000:28:00.3-2
Driver version: 5.0.21
Capabilities : 0x84A00001
Video Capture
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Compliance test for device /dev/video0 (not using libv4l2):
Required ioctls:
test VIDIOC_QUERYCAP: OK
Allow for multiple opens:
test second video open: OK
test VIDIOC_QUERYCAP: OK
test VIDIOC_G/S_PRIORITY: OK
test for unlimited opens: OK
Debug ioctls:
test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
test VIDIOC_LOG_STATUS: OK (Not Supported)
Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 1 Audio Inputs: 0 Tuners: 0
Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 0 Audio Outputs: 0 Modulators: 0
Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)
Test input 0:
Control ioctls:
fail: v4l2-test-controls.cpp(251): missing control class for class 00980000
test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: FAIL
test VIDIOC_QUERYCTRL: OK
test VIDIOC_G/S_CTRL: OK
warn: v4l2-test-controls.cpp(695): g_ext_ctrls(0) invalid error_idx 0
test VIDIOC_G/S/TRY_EXT_CTRLS: OK
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
Standard Controls: 8 Private Controls: 0
Format ioctls:
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
warn: v4l2-test-formats.cpp(1216): S_PARM is supported but doesn't report V4L2_CAP_TIMEPERFRAME
fail: v4l2-test-formats.cpp(1140): node->has_frmintervals && !cap->capability
test VIDIOC_G/S_PARM: FAIL
test VIDIOC_G_FBUF: OK (Not Supported)
fail: v4l2-test-formats.cpp(330): !colorspace
fail: v4l2-test-formats.cpp(439): testColorspace(pix.pixelformat, pix.colorspace, pix.ycbcr_enc, pix.quantization)
test VIDIOC_G_FMT: FAIL
test VIDIOC_TRY_FMT: OK (Not Supported)
test VIDIOC_S_FMT: OK (Not Supported)
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
fail: v4l2-test-formats.cpp(1374): doioctl(node, VIDIOC_CROPCAP, &cap) != EINVAL
fail: v4l2-test-formats.cpp(1396): testLegacyCrop(node)
test Cropping: FAIL
test Composing: OK (Not Supported)
test Scaling: OK (Not Supported)
Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
Buffer ioctls:
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
fail: v4l2-test-buffers.cpp(574): VIDIOC_EXPBUF is supported, but the V4L2_MEMORY_MMAP support is missing, probably due to earlier failing format tests.
test VIDIOC_EXPBUF: OK (Not Supported)
Test input 0:
Total: 43, Succeeded: 39, Failed: 4, Warnings: 2
