Error using VideoWriter to write video frames to a file

Question

Jason 2021-3-12

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/770728-error-using-videowriter-to-write-video-frames-to-a-file

评论： Jason 2021-3-12

Hello, I am trying to save a video from a FLIR camera using the gentl adaptor.

            vid = videoinput('gentl', 1, 'Mono16');              
            src=getselectedsource(vid);
            vid.FramesPerTrigger=20;
            preview(vid);
            start(vid);
            stoppreview(vid);
            diskLogger=VideoWriter('D:\Temp\VidMatlab.mp4','MPEG-4');   % Use the MPEG-4 Codec
            open(diskLogger);
            vid.FramesAvailable
            data=getdata(vid,vid.FramesAvailable);
            numFrames=size(data,4)
            for x=1:numFrames
                 writeVideo(diskLogger,data(:,:,:,x));
            end
            close(diskLogger)
            

But I keep getting the error message

Warning: No video frames were written to this file. The file may be invalid. 
Error using VideoWriter/writeVideo (line 414)
Operands to the || and && operators must be convertible to logical scalar values.

2 个评论
显示无隐藏无

Jason 2021-3-12

在 MATLAB Online 中打开

OK its this:

                if (min(inputFrames(:)) < 0) || (max(inputFrames(:)) > 1)
                    error(message('MATLAB:audiovideo:VideoWriter:invalidRange', curDataType));