Question

我正在尝试创建 Matlab GUI ，在其一侧播放视频，另一侧播放按钮。单击按钮，只需获取视频的播放时间并将其存储在文件中。有没有办法在指定的轴上播放视频？我正在使用以下代码但没有得到回复。

xyloObj = VideoReader('xylophone.mp4');

vidWidth = xyloObj.Width;
vidHeight = xyloObj.Height;

mov = struct('cdata',zeros(vidHeight,vidWidth,3,'uint8'),...
    'colormap',[]);

k = 1;
while hasFrame(xyloObj)
    mov(k).cdata = readFrame(xyloObj);
    k = k+1;
end

hf = figure;
set(hf,'position',[150 150 vidWidth vidHeight]);

movie(hf,mov,1,xyloObj.FrameRate);

Answer 1

以下代码对您有所帮助。尝试一下，如果您有任何问题或任何与该代码相关的查询，请问我

 xyloObj = VideoReader('xylophone.mpg');

    nFrames = xyloObj.NumberOfFrames;
    vidHeight = xyloObj.Height;
    vidWidth = xyloObj.Width;

    % Preallocate movie structure.
    mov(1:nFrames) = ...
        struct('cdata', zeros(vidHeight, vidWidth, 3, 'uint8'),...
               'colormap', []);

    % Read one frame at a time.
    for k = 1 : nFrames
        mov(k).cdata = read(xyloObj, k);
    end        

    h = figure ; hf = axes('Parent' , h);


    % Play back the movie once at the video's frame rate.
    movie(hf, mov, 1, xyloObj.FrameRate);

在Matlab gui中播放mp4视频

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