[Ffmpeg-devel] Capturing every keyframe from a DVD

[Rich Felker]

On Mon, Jun 13, 2005 at 04:50:06PM +0200, M?ns Rullg?rd wrote:
> Clayton Brown <clayton.brown at digitalrum.com> writes:
> 
> > Does anyone know how to save every keyframe from a DVD into a format
> > such as JPG/TIFF etc.
> 
> Extract the video stream, and send it through an AVParser.  Discard
> any non-I frames, and decode the I frames using libavcodec as usual.
> Save the decoded frames to separate images using your favorite library
> for your format of choice (libavcodec/libavformat handles some of
> them).

Actually there should be a way to convert mpeg1(/2/4?) keyframes into
jpeg files losslessly without decoding and reencoding, shouldn't
there? :)

Rich