qtvcp -camview widget: add a debug for camera resolution report

Author: c-morley

lib/python/qtvcp/widgets/camview_widget.py

@@ -34,6 +34,7 @@
     STATUS = Status()
     INFO = Info()
 LOG = logger.getLogger(__name__)
+#LOG.setLevel(logger.DEBUG) # One of DEBUG, INFO, WARNING, ERROR, CRITICAL
 
 # Suppress cryptic messages when checking for useable ports
 os.environ["OPENCV_LOG_LEVEL"]="FATAL"
@@ -326,6 +327,7 @@ def showEvent(self, event):
             try:
                 self.video = WebcamVideoStream(src=self._camNum)
                 if not self.video.isOpened():
+
                     p = self.video.list_ports()[1]
                     self.text = 'Error with video {}\nAvailable ports:\n{}'.format(self._camNum, p)
                 else:
@@ -450,7 +452,6 @@ def reset_camnum(self):
 
 class WebcamVideoStream:
     def __init__(self, src=0, api=DEFAULT_API):
-
         # initialize the video camera stream and read the first frame
         # from the stream
         self.stream = self.openStream(src, api)
@@ -464,6 +465,10 @@ def __init__(self, src=0, api=DEFAULT_API):
             if plist != []:
                 self.stream = self.openStream(plist[0], api)
 
+        width = int(self.stream.get(CV.CAP_PROP_FRAME_WIDTH))
+        height = int(self.stream.get(CV.CAP_PROP_FRAME_HEIGHT))
+        LOG.debug(f"Current camera resolution: {width}x{height}")
+
         # initialize the variable used to indicate if the thread should
         # be stopped
         self.stopped = False