Taking screenshot every X seconds from command line

[albyr]

I'm trying to take a screencap from a video file every X seconds. I've been trying to do this with the command line to no avail.

The command line command:
"vlc file.avi --vout=image --image-out-prefix=shot --image-out-ratio=240"
should give me an image every ten seconds but instead gives me the message:
"The command line options couldn't be loaded, check that they are valid"

In my preferences, under video output modules I have the usual suspects, including coloured ASCII art, but no "image" option, so I'm guessing this is related.

I'd rather find a solution to the problem I've described, so that I can use the command line properly; but if anyone has a different method of screenshotting every X seconds I'll happily take that (maybe something with the --snapshot command?). I really don't want to have to switch to MPlayer, VirtualDub or something else.

[VLC_help]

There aren't any options called image-out-prefix nor image-out-ratio in VLC 1.0.2 because scene filter replaced image.

--scene-prefix=<string> Filename prefix
Prefix of the output images filenames. Output filenames will have the
"prefixNUMBER.format" form if replace is not true.

--scene-ratio=<integer> Recording ratio
Ratio of images to record. 3 means that one image out of three is
recorded.

[albyr]

Okay, thanks. But even replacing the image-out with scene filter doesn't fix the problem. The video plays (not on screen, but sound is audible) but no images are captured.

[VLC_help]

You replaced --vout=image with --video-filter=scene ?

[albyr]

Yep. The command I'm using is

"vlc file.avi --video-filter=scene --scene-prefix=cut --scene-ratio=48"

The result is that the video plays as normal. No images are recorded and the video file is unchanged.

[VLC_help]

Does addition of scene-path help?

[albyr]

Yes! It looks very promising!