Pad.chain

gst.types.FlowReturn chain(gst.buffer.Buffer buffer)

Chain a buffer to pad.

The function returns #GST_FLOW_FLUSHING if the pad was flushing.

If the buffer type is not acceptable for pad (as negotiated with a preceding GST_EVENT_CAPS event), this function returns #GST_FLOW_NOT_NEGOTIATED.

The function proceeds calling the chain function installed on pad (see gst_pad_set_chain_function()) and the return value of that function is returned to the caller. #GST_FLOW_NOT_SUPPORTED is returned if pad has no chain function.

In all cases, success or failure, the caller loses its reference to buffer after calling this function.

Parameters

buffer the #GstBuffer to send, return GST_FLOW_ERROR if not.

Returns

a #GstFlowReturn from the pad.

MT safe.