[FFmpeg-user] How to set video size when using -f dshow?

[Eric Hollis]

Hi.
When running the command line below, I get "Option video_size not found."
I've tried -video_size hd720, with no effect.

How do you set the video size when using dshow? Thanks for any help you can
provide.

ffmpeg -rtbufsize 100000000 -f dshow -s hd720 -i video="Microsoft LifeCam
Cinema" -vframes 1 test%06d.tif

Eric