Searches for the camera at CameraHost:CameraPort having the specified video format.
function SearchCamera(CameraTypes: TRVCameraTypes = ) : Boolean;
The method connects to the specified address, recognizes the camera model (if there is a camera at this address), reads its properties.
If VideoFormat=rvvfMJPEG, the method searches for cameras providing MJPEG video streams; otherwise it searches for cameras providing H.264 streams (they require FFmpeg to play).
If you know a model of the camera, you can specify its type in CameraTypes parameter. The method only searches for the camera types specified in this parameter (the empty set works like the full set, i.e. the component searches for all supported camera models).
Wait mode: the method returns only when the search is complete. Return value: a camera is found. Not recommended, because searching is a relatively long process.
When the search is successfully completed, the following changes are made:
•IPCameraTypes property is assigned
•VideoResolution property is assigned if the camera supports it
•Parameters property is filled
After searching, call PlayVideoStream to receive video from this camera.
TRVCamera can control (rotate, get and set properties) only cameras that were found by this method. If you just assign URL property and call PlayVideoStream, TRVCamera can only receive video.