I'm trying to display a webcam video in a Gui and placing it into a standalone exe. While the program works perfectly when I run it within Matlab, the webcam would refuse to play any live video and only show a static image.
I suspect that something is wrong with the "preview()" function, since other webcam related functions down the line still works: for example, an "img=getsnapshot(vid);" would still capture a picture, and the subsequent "imshow(img, 'parent', handles.axes1);" can display the aforementioned image without any issues either. Also, I tested the compiler on the simplest webcam function i can write:
vid = videoinput('winvideo');
preview(vid);
As in, those actual two lines of code in a .m, and even that doesn't work after compiling (they work fine under the matlab environment).
Is there any way for me use the preview function? I did not pass any parameters into the MCC, should I have? Replacements for preview are also welcomed, but the simple ones that I have attempted, such as a while(1) loop with a img=getsnapshot(vid), tends to be too slow and clashes with other image aq commands.
btw, the actual code that displays the vid is
vid = videoinput('winvideo',1,'MJPG_848x480');
handles.vid=vid;
guidata(hObject, handles);
vidRes=get(handles.vid,'VideoResolution');
nBands=get(handles.vid,'NumberOfBands');
himage=image(zeros(vidRes(2),vidRes(1), nBands),'parent',handles.axes1);
handles.himage=himage;
guidata(hObject, handles);
preview(handles.vid,handles.himage);
I'm using Matlab 2015b.
