| Top |  |  |  |  | 
| guint64 | alignment-threshold | Read / Write | 
| guint | buffer-size | Read / Write | 
| GstDecklinkAudioConnection | connection | Read / Write / Construct | 
| gint | device-number | Read / Write / Construct | 
| guint64 | discont-wait | Read / Write | 
| GstDecklinkAudioChannels | channels | Read / Write / Construct | 
| gchar * | hw-serial-number | Read | 
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstBaseSrc ╰── GstPushSrc ╰── GstDecklinkAudioSrc
Capture Video and Audio from a BlackMagic DeckLink Device. Can only be used in conjunction with decklinkvideosink.
| 1 2 3 | gst-launch-1.0 \ decklinkvideosrc device-number=0 mode=1080p25 ! autovideosink \ decklinkaudiosrc device-number=0 ! autoaudiosink | 
Capturing 1080p25 video and audio from the SDI-In of Card 0. Devices are numbered starting with 0.
| plugin | decklink | 
| author | David Schleef <ds@entropywave.com>, Sebastian Dröge <sebastian@centricular.com> | 
| class | Audio/Source/Hardware | 
| name | src | 
| direction | source | 
| presence | always | 
| details | audio/x-raw, format=(string){ S16LE, S32LE }, channels=(int)2, rate=(int)48000, layout=(string)interleaved | 
| audio/x-raw, format=(string){ S16LE, S32LE }, channels=(int){ 8, 16 }, channel-mask=(bitmask)0x0000000000000000, rate=(int)48000, layout=(string)interleaved | 
“alignment-threshold” property“alignment-threshold” guint64
Timestamp alignment threshold in nanoseconds.
Flags: Read / Write
Allowed values: <= 18446744073709551614
Default value: 40000000
“buffer-size” property“buffer-size” guint
Size of internal buffer in number of video frames.
Flags: Read / Write
Allowed values: [1,G_MAXINT]
Default value: 5
“connection” property  “connection”               GstDecklinkAudioConnection
Audio input connection to use.
Flags: Read / Write / Construct
Default value: Automatic
“device-number” property“device-number” gint
Output device instance to use.
Flags: Read / Write / Construct
Allowed values: >= 0
Default value: 0
“discont-wait” property“discont-wait” guint64
Window of time in nanoseconds to wait before creating a discontinuity.
Flags: Read / Write
Allowed values: <= 18446744073709551614
Default value: 1000000000
“channels” property  “channels”                 GstDecklinkAudioChannels
Audio channels.
Flags: Read / Write / Construct
Default value: 2 Channels
“hw-serial-number” property“hw-serial-number” gchar *
The serial number (hardware ID) of the Decklink card.
Flags: Read
Default value: NULL