getnext

FRAME=GETNEXT(VR)
  This method is a shortcut for
    if (next(vr))
      frame = getframe(vr);
    else
      frame = [];
    end

  Although this method can be more convenient than calling NEXT and GETFRAME
  separately, there is no way to distinguish between a zero-sized frame and
  reading past the end of the stream.  

  Typical usage:
    vr = videoReader('numbers.uncompressed.avi');
    info = getinfo(vr);
    for i=1:info.numFrames
      img = getnext(vr);
      imshow(img);
      pause(1/info.fps);
    end
    vr = close(vr);

SEE ALSO
  videoReader
  videoReader/getframe
  videoReader/next

Copyright (c) 2006 Gerald Dalley
See "MIT.txt" in the installation directory for licensing details (especially
when using this library on GNU/Linux).

0001 function frame = getnext(vr)
0002 %FRAME=GETNEXT(VR)
0003 %  This method is a shortcut for
0004 %    if (next(vr))
0005 %      frame = getframe(vr);
0006 %    else
0007 %      frame = [];
0008 %    end
0009 %
0010 %  Although this method can be more convenient than calling NEXT and GETFRAME
0011 %  separately, there is no way to distinguish between a zero-sized frame and
0012 %  reading past the end of the stream.
0013 %
0014 %  Typical usage:
0015 %    vr = videoReader('numbers.uncompressed.avi');
0016 %    info = getinfo(vr);
0017 %    for i=1:info.numFrames
0018 %      img = getnext(vr);
0019 %      imshow(img);
0020 %      pause(1/info.fps);
0021 %    end
0022 %    vr = close(vr);
0023 %
0024 %SEE ALSO
0025 %  videoReader
0026 %  videoReader/getframe
0027 %  videoReader/next
0028 %
0029 %Copyright (c) 2006 Gerald Dalley
0030 %See "MIT.txt" in the installation directory for licensing details (especially
0031 %when using this library on GNU/Linux).
0032 
0033 if (next(vr))
0034   frame = getframe(vr);
0035 else
0036   frame = [];
0037 end
0038 
0039