event stream-start: GstEventStreamStart, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)1;
event caps: video/x-raw, format=(string)I420, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive;
event segment: format=TIME, start=0:00:00.000000000, offset=0:00:00.000000000, stop=none, time=0:00:00.000000000, base=0:00:00.000000000, position=0:00:00.000000000
buffer: content-id=0, pts=0:00:00.000000000, dur=0:00:00.033333333, flags=discont
buffer: content-id=2, pts=0:00:00.033333333, dur=0:00:00.033333333
buffer: content-id=4, pts=0:00:00.066666666, dur=0:00:00.033333334
buffer: content-id=6, pts=0:00:00.100000000, dur=0:00:00.033333333
buffer: content-id=8, pts=0:00:00.133333333, dur=0:00:00.033333333
buffer: content-id=10, pts=0:00:00.166666666, dur=0:00:00.033333334
buffer: content-id=12, pts=0:00:00.200000000, dur=0:00:00.033333333
buffer: content-id=14, pts=0:00:00.233333333, dur=0:00:00.033333333
buffer: content-id=16, pts=0:00:00.266666666, dur=0:00:00.033333334
buffer: content-id=18, pts=0:00:00.300000000, dur=0:00:00.033333333
buffer: content-id=20, pts=0:00:00.333333333, dur=0:00:00.033333333
