ximagesrc startx=6 starty=50 endx=646 endy=530 ! ffmpegcolorspace ! video/x-raw-yuv,framerate=(fraction)25/1,format=(fourcc)I420 producer-video 1024000 2 16 hw:0 44100 alsasrc producer-audio 0.5 encoder-video encoder-audio muxer-audio-video /tmp time True 43200