Pushes a buffer list to the peer of this.
This function will call installed block probes before triggering any installed data probes.
The function proceeds calling the chain function on the peer pad and returns the value from that function. If this has no peer, NOT_LINKED will be returned. If the peer pad does not have any installed chainlist function every group buffer of the list will be merged into a normal Buffer and chained via chain.
In all cases, success or failure, the caller loses its reference to list after calling this function.
| this | |
| list |
the BufferList to push returns GST_FLOW_ERROR if not. |