Push stream-start, caps and segment event, which consist of the minimum required events to allow streaming.
Caps is optional to allow raw src testing. If element has more than one src or sink pad, use
setup_events_with_stream_id instead.
| srcpad |
The src Pad to push on |
| element |
The Element use to create the stream id |
| caps |
Caps in case caps event must be sent |
| format |
The Format of the default segment to send |