Script to extract frames form vid

J_Mac wrote on 8/26/2003, 1:54 AM

Is there a script to extract a single frame of video every 'n' frames for a separate slide show project? I do Soccer vid for the teams and was looking for an easy way to include a slide show in their package with the videos.
Thanks John.

Comments

Chienworks wrote on 8/26/2003, 6:01 AM

Are you going to be making the slide show as a video file? If so then there is a very easy way to do this. Right-mouse-button click on the clip and bring up it's properties. Change the Undersample Rate. The normal value is 1.000 which means that you see one frame for every frame in the clip. Setting this to 0.100 will show one frame every 10 frames. Setting it for 0.008 will show approximately one still frame for 4 seconds.

J_Mac wrote on 8/26/2003, 9:42 AM

Thanks Chienworks. So with this method I would load the completed video, adjust the Undersample rate, and as the vid plays, it would display 1 frame every 'n' frames, depending in the undersample value, on the timeline. Will this method render, the 'modified' video into an AVI, or other and then become a 'slide' show?
Thanks for all you do for us vidually (new word?) challenged. I'll try it, and post back. John

johnmeyer wrote on 8/26/2003, 10:11 AM

Chienworks:

Thanks for the undersample tip. I had completely missed that feature. Very useful.

J_Mac wrote on 8/26/2003, 10:40 AM

Chienworks, I tried your suggestion and the undersample rate will not go below .100, 2.997 fps. When I change the rate to .008, at clicking ok button, the rate reverts to .100. This happens with other rates lower than .100 also. I checked the force undersample switch with no change, in a new project, with vid on TL. Am I missing something obvious? Thanks, vidually challenged, John.

Josh15 wrote on 8/26/2003, 11:48 AM

Vegas has a script called "RenderImageSequence.js" which lets you export frames from an event (or a selection).
Based on this, you can write a simple script to export, say, the current frame to a file. I have written such a script. It exports the current frame to a file, that is sequentially numbered. Once this script is assigned to a hotkey (Ctrl + number), it's just a matter of pressing the key combination wherever you are on the timeline as many times as you like, and the result is a series of bitmap files.