1 event stream-start: GstEventStreamStart, flags=(GstStreamFlags)GST_STREAM_FLAG_NONE, group-id=(uint)1;
2 event caps: video/x-raw, format=(string)I420, framerate=(fraction)1/1, height=(int)240, width=(int)320;
3 event segment: format=TIME, start=0:00:00.000000000, offset=0:00:00.000000000, stop=0:00:03.000000000, time=0:00:00.000000000, base=0:00:00.000000000, position=0:00:00.000000000
4 buffer: content-id=0, pts=0:00:00.000000000, dur=0:00:01.000000000, flags=discont
6 CHECKPOINT: Setting caps but the videorate element will roll the caps back to push buffers to close the configured segment on EOS
8 event caps: video/x-raw, framerate=(fraction)1/1, height=(int)244, width=(int)322;
9 event caps: video/x-raw, format=(string)I420, framerate=(fraction)1/1, height=(int)240, width=(int)320;
10 buffer: content-id=0, pts=0:00:01.000000000, dur=0:00:01.000000000
11 buffer: content-id=0, pts=0:00:02.000000000, dur=0:00:01.000000000, flags=gap
12 event caps: video/x-raw, framerate=(fraction)1/1, height=(int)244, width=(int)322;
13 event eos: (no structure)