MATLAB 视频读取时：Unable to locate decompressor to decompress video stream 错误原因

??? Error using ==> readavi
Unable to locate decompressor to decompress video stream

Error in ==> aviread at 64
            X = readavi(info.Filename,-1);

出现这中错误的原因解码器的原因，可以使用aviinfo来查看avi文件的编码器：

aviinfo('D:\SampleVideo.avi')

ans =

              Filename: 'D:\SampleVideo.avi'
              FileSize: 638976
           FileModDate: '14-Oct-2014 10:55:46'
             NumFrames: 263
       FramesPerSecond: 15
                 Width: 1280
                Height: 720
             ImageType: 'truecolor'
      VideoCompression: 'Indeo5'
               Quality: 0
    NumColormapEntries: 0

如上所以，编码器为VideoCompression: 'Indeo5'，目前matlab支持的编码有：'Indeo3'  'Indeo5' 'Cinepak'  'MSVC'  'RLE'   'None'

如果是其他的编码方式的话则aviread函数会报错。