Utility struct to help handling #GstFlowReturn combination. Useful for
#GstElement<!-- -->s that have multiple source pads and need to combine
the different #GstFlowReturn for those pads.
#GstFlowCombiner works by using the last #GstFlowReturn for all #GstPad
it has in its list and computes the combined return value and provides
it to the caller.
Please be aware that this struct isn't thread safe as its designed to be
used by demuxers, those usually will have a single thread operating it.
These functions will take refs on the passed #GstPad<!-- -->s.
Aside from reducing the user's code size, the main advantage of using this
helper struct is to follow the standard rules for #GstFlowReturn combination.
These rules are:
Utility struct to help handling #GstFlowReturn combination. Useful for #GstElement<!-- -->s that have multiple source pads and need to combine the different #GstFlowReturn for those pads.
#GstFlowCombiner works by using the last #GstFlowReturn for all #GstPad it has in its list and computes the combined return value and provides it to the caller.
To add a new pad to the #GstFlowCombiner use gstbase.flow_combiner.FlowCombiner.addPad. The new #GstPad is stored with a default value of gst.types.FlowReturn.Ok.
In case you want a #GstPad to be removed, use gstbase.flow_combiner.FlowCombiner.removePad.
Please be aware that this struct isn't thread safe as its designed to be used by demuxers, those usually will have a single thread operating it.
These functions will take refs on the passed #GstPad<!-- -->s.
Aside from reducing the user's code size, the main advantage of using this helper struct is to follow the standard rules for #GstFlowReturn combination. These rules are:
gst.types.FlowReturn.Error or below, GST_FLOW_NOT_NEGOTIATED and GST_FLOW_FLUSHING are returned immediately from the gstbase.flow_combiner.FlowCombiner.updateFlow function.