Grab screenshots from video

[Shaorin]

I usually use VirtualDub to get screenshots from a video for every 500 frames but virtualdub can't open mkv files. Is there any other program that can open mkv files and take screenshots of every 500 frames?

[Baldrick]

Try virtualdubmod or try Video Thumbnails Maker.

[Shaorin]

I can't see an option to set how many frames to screen capture in video thumbnails maker

[Krispy Kritter]

I've always used MPC. But I don't know if it's adjustable.

[Shaorin]

MPC only does thumbnails. I wanted full size screenshots of every 500 frames

[gadgetguy]

You could probably do it with AviSynth using SelectEvery() and ImageWriter().
I've never tried to open .mkv in AviSynth, but I'm sure there's a way.

[poisondeathray]

You can also open it up with an avisynth script in virtualdub. You need avisynth & the proper splitters & decoders installed (e.g. haali media splitter, ffdshow). Just write the text file, rename extension to .avs. Open the .avs in virtualdub

DirectShowSource("movie.mkv")

[SCDVD]

VLC does a good job on screen grabs as well. It also helps smooth interlaced frames so the image doesn't suffer from interlaced artifacts.

[mgh]

I can't see an option to set how many frames to screen capture in video thumbnails maker

modify any of the presets (select-modify, save)