decklinkaudiosink

Playout Video and Audio to a BlackMagic DeckLink Device. Can only be used in conjunction with decklinkvideosink.

Sample pipeline

 gst-launch-1.0 \
   videotestsrc ! decklinkvideosink device-number=0 mode=1080p25 \
   audiotestsrc ! decklinkaudiosink device-number=0

Playout a 1080p25 test-video with a test-audio signal to the SDI-Out of Card 0. Devices are numbered starting with 0.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseSink
                    ╰──decklinkaudiosink

Factory details

Authors: – David Schleef , Sebastian Dröge

Classification: – Audio/Sink/Hardware

Rank – none

Plugin – decklink

Package – GStreamer Bad Plug-ins

Pad Templates

sink

audio/x-raw:
         format: { S16LE, S32LE }
       channels: { (int)2, (int)8, (int)16 }
           rate: 48000
         layout: interleaved

Presence – always

Direction – sink

Object type – GstPad

Properties

alignment-threshold 

“alignment-threshold” guint64

Timestamp alignment threshold in nanoseconds

Flags : Read / Write

Default value : 40000000

buffer-time 

“buffer-time” guint64

Size of audio buffer in microseconds, this is the minimum latency that the sink reports

Flags : Read / Write

Default value : 50000

device-number 

“device-number” gint

Output device instance to use

Flags : Read / Write / Construct

Default value : 0

discont-wait 

“discont-wait” guint64

Window of time in nanoseconds to wait before creating a discontinuity

Flags : Read / Write

Default value : 1000000000

hw-serial-number 

“hw-serial-number” gchararray

The serial number (hardware ID) of the Decklink card

Flags : Read

Default value : NULL

persistent-id 

“persistent-id” gint64

Decklink device to use. Higher priority than "device-number". BMDDeckLinkPersistentID is a device specific, 32-bit unique identifier. It is stable even when the device is plugged in a different connector, across reboots, and when plugged into different computers.

Flags : Read / Write / Construct

Default value : 18446744073709551615

Since : 1.22

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