need help on using ffmpeg for video grab
I have bt848 card and watch TV with xawtv
As another application shows:
Device 00: BT848A video (Lifeview FlyVideo /dev/video0)
Port 00: Television
Port 01: Composite1
Port 02: S-Video
Port 03: Composite3
I select "Composite1" in xawtv
I try ffmpeg with this command:
ffmpeg -s vga -f video4linux2 -i /dev/video0 t2.mpg
then I "ffplay t2.mpg", it shows green screen
maybe I didn't specify "Composite1" in ffmpeg command, but how to do that?
or maybe I didn't specify PAL, but how to do that?