[ WARN:0@12.762] global cap.cpp:401 open VIDEOIO(GSTREAMER): trying capture cameraNum=0 ...
[ INFO:0@12.762] global cap_gstreamer.cpp:1412 open OpenCV | GStreamer: v4l2src device=/dev/video0 ! videoconvert ! appsink drop=true
[ INFO:0@12.764] global cap_gstreamer.cpp:1445 open OpenCV | GStreamer: mode - MANUAL
[ WARN:0@15.724] global cap_gstreamer.cpp:1776 open OpenCV | GStreamer warning: Cannot query video position: status=0, value=-1, duration=-1
[ WARN:0@15.724] global cap.cpp:413 open VIDEOIO(GSTREAMER): created, isOpened=1
[ WARN:0@15.724] global cap_gstreamer.cpp:2151 setProperty OpenCV | GStreamer warning: GStreamer: unhandled property
[ WARN:0@15.724] global cap_gstreamer.cpp:2151 setProperty OpenCV | GStreamer warning: GStreamer: unhandled property
[ WARN:0@20.990] global cap_gstreamer.cpp:2847 handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module v4l2src0 reported: Internal data stream error.
[DEBUG:0@20.991] global cap_gstreamer.cpp:2849 handleMessage GStreamer debug: ../libs/gst/base/gstbasesrc.c(3187): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason not-negotiated (-4)
[ WARN:0@20.991] global cap_gstreamer.cpp:1207 startPipeline OpenCV | GStreamer warning: unable to start pipeline
[ WARN:0@20.991] global cap_gstreamer.cpp:1970 setProperty OpenCV | GStreamer warning: no pipeline
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
error: frame not read from webcam
[ WARN:0@21.015] global cap.cpp:401 open VIDEOIO(GSTREAMER): trying capture cameraNum=0 ...
[ INFO:0@21.015] global cap_gstreamer.cpp:1412 open OpenCV | GStreamer: v4l2src device=/dev/video0 ! videoconvert ! appsink drop=true
[ INFO:0@21.017] global cap_gstreamer.cpp:1445 open OpenCV | GStreamer: mode - MANUAL
[ WARN:0@26.110] global cap_gstreamer.cpp:2847 handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module v4l2src1 reported: Ошибка инициализации устройства «/dev/video
[DEBUG:0@26.129] global cap_gstreamer.cpp:2849 handleMessage GStreamer debug: ../sys/v4l2/gstv4l2object.c(4680): gst_v4l2_object_set_format_full (): /GstPipeline:pipeline1/GstV4l2Src:v4l2src1:
Call to TRY_FMT failed for YUYV @ 640x480: Ошибка ввода/вывода
[ WARN:0@26.130] global cap_gstreamer.cpp:1697 open OpenCV | GStreamer warning: unable to start pipeline
[ WARN:0@26.130] global cap_gstreamer.cpp:1172 isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
[ WARN:0@26.131] global cap_gstreamer.cpp:1172 isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
[ WARN:0@26.131] global cap.cpp:424 open VIDEOIO(GSTREAMER): can't create capture
[ WARN:0@26.131] global cap.cpp:401 open VIDEOIO(V4L2): trying capture cameraNum=0 ...
[DEBUG:0@26.131] global cap_v4l.cpp:921 open VIDEOIO(V4L2:/dev/video0): opening...
[DEBUG:0@26.131] global cap_v4l.cpp:936 open VIDEOIO(V4L2:/dev/video0): deviceHandle=42
[DEBUG:0@26.131] global cap_v4l.cpp:1004 tryIoctl VIDEOIO(V4L2:/dev/video0): tryIoctl(42, VIDIOC_QUERYCAP(2154321408), failIfBusy=1)
[DEBUG:0@26.131] global cap_v4l.cpp:1012 tryIoctl VIDEOIO(V4L2:/dev/video0): call ioctl(42, VIDIOC_QUERYCAP(2154321408), ...) => 0    errno=0 (Выполнено)
