#!/bin/sh gst-launch \ videotestsrc num-buffers=300 ! \ video/x-raw-yuv,framerate=30/1 ! \ timeoverlay ! \ theoraenc ! \ oggmux ! \ filesink location=output.ogg \ audiotestsrc num-buffers=10 timestamp-offset=1000000000 \ samplesperbuffer=44100 ! \ audio/x-raw-float,rate=44100 ! \ vorbisenc ! oggmux0.