Function which accepts a new input buffer and pre-processes it.
The default implementation performs caps (re)negotiation, then
QoS if needed, and places the input buffer into the @queued_buf
member variable. If the buffer is dropped due to QoS, it returns
GST_BASE_TRANSFORM_FLOW_DROPPED. If this input buffer is not
contiguous with any previous input buffer, then @is_discont
is set to true. (Since: 1.6)
Function which accepts a new input buffer and pre-processes it. The default implementation performs caps (re)negotiation, then QoS if needed, and places the input buffer into the @queued_buf member variable. If the buffer is dropped due to QoS, it returns GST_BASE_TRANSFORM_FLOW_DROPPED. If this input buffer is not contiguous with any previous input buffer, then @is_discont is set to true. (Since: 1.6)