cccombiner
Combines GstVideoCaptionMeta with video input stream
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstAggregator ╰──cccombiner
Factory details
Authors: – Sebastian Dröge
Classification: – Filter
Rank – none
Plugin – closedcaption
Package – GStreamer Bad Plug-ins
Pad Templates
caption
closedcaption/x-cea-608:
format: { raw, s334-1a }
closedcaption/x-cea-708:
format: { cc_data, cdp }
Properties
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
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