SIVP Toolbox
Last update : April, 2006

aviopen - Open a video file. (experimental)

### Calling Sequence

  `n = aviopen(filename)`

### Parameters

- `filename`: A string, the video filename to be read.
- `n`: A number, the opened video file index.

### Description

`aviopen` open a video file, but it does not read frames from the file. Please use `im=avireadframe(n)` to get a frame from the n'th opened video file. Remember to close the opened file using `aviclose(n)` or `avicloseall()`.

Video support for SIVP is only available when SIVP is compiled with OpenCV which support video I/O.

### Examples

        n = aviopen(SCI+'/contrib/sivp/images/video.avi');
        im = avireadframe(n); //get a frame
        imshow(im);

        avilistopened()
        aviclose(n);

### Authors

  Shiqi Yu <shiqi.yu[at]gmail.com>

### Availability

The latest version of SIVP can be found at

http://sivp.sourceforge.net

### See Also

`aviinfo`, `camopen`, `avifile`, `addframe`, `aviclose`, `avicloseall`, `avilistopened`, `avireadframe`,