A function that will be called when buffer is received on the pad managed
by data in the collecpad object pads.
The function should use the segment of data and the negotiated media type on
the pad to perform clipping of buffer.
This function takes ownership of buffer.
the buffer has been clipped completely.
A function that will be called when
bufferis received on the pad managed bydatain the collecpad objectpads. The function should use the segment ofdataand the negotiated media type on the pad to perform clipping ofbuffer. This function takes ownership ofbuffer. the buffer has been clipped completely.