cccombiner

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstAggregator
                    ╰──cccombiner

Factory details

caption

closedcaption/x-cea-608:
         format: { raw, s334-1a }
closedcaption/x-cea-708:
         format: { cc_data, cdp }

sink

ANY

src

ANY

max-scheduled

“max-scheduled” guint

Controls the number of scheduled buffers after which the element will start dropping old buffers from its internal queues. See .

Flags : Read / Write

Default value : 30

output-padding

“output-padding” gboolean

When is TRUE, this property controls whether the output closed caption meta stream will be padded.

Flags : Read / Write

Default value : true

schedule

“schedule” gboolean

Controls whether caption buffers should be smoothly scheduled in order to have exactly one per output video buffer.

This can involve rewriting input captions, for example when the input is CDP sequence counters are rewritten, time codes are dropped and potentially re-injected if the input video frame had a time code meta.

Caption buffers may also get split up in order to assign captions to the correct field when the input is interlaced.

This can also imply that the input will drift from synchronization, when there isn't enough padding in the input stream to catch up. In that case the element will start dropping old caption buffers once the number of buffers in its internal queue reaches .

When this is set to FALSE, the behaviour of this element is essentially that of a funnel.

Flags : Read / Write

Default value : true