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Hierarchy

  • PadChainListFunction

Callable

  • A function that will be called on sinkpads when chaining buffer lists. The function typically processes the data contained in the buffer list and either consumes the data or passes it on to the internally linked pad(s).

    The implementer of this function receives a refcount to list and should gst_buffer_list_unref() when the list is no longer needed.

    When a chainlist function detects an error in the data stream, it must post an error on the bus and return an appropriate #GstFlowReturn value.

    Parameters

    • pad: Gst.Pad

      the sink #GstPad that performed the chain.

    • parent: Gst.Object

      the parent of pad. If the #GST_PAD_FLAG_NEED_PARENT flag is set, parent is guaranteed to be not-%NULL and remain valid during the execution of this function.

    • list: Gst.BufferList

      the #GstBufferList that is chained, not %NULL.

    Returns Gst.FlowReturn

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