DeckLink egest

This component plays out video, audio, subtitle and ancillary streams over SDI or HDMI using Blackmagic DeckLink cards.

Component Configuration

Option Description Required Environment override

id

A unique identifier for the component instance

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displayName

The name shown in the Studio UI of this component

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cardIndex

The DeckLink card index (0-based) (default: 0)

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videoConnection

Physical output connection on the card (default: "sdi")

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pixelFormat

Pixel format. Use ARGB when driving an external keyer (requires 'external' keying mode). (default: "uyvy")

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numAudioChannels

Number of audio channels to output (0 to disable audio) (default: 2)

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keyingMode

Hardware keyer mode. 'internal' combines fill + key on this output; 'external' requires a paired card and ARGB pixel format. (default: "none")

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profileId

Hardware profile to activate before playback. Available profiles vary by card model. 'Automatic' picks a full-duplex profile when keying is enabled (the keyer needs it) and two sub-devices half-duplex otherwise. (default: "auto")

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jitterBuffer

Configure the buffer to smooth outgoing data. Leave empty to use global latency profile default. (default: {})

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notes

Additional notes about this component

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Jitter Buffer

Option Description Required

bufferDelayMs

How many milliseconds in the jitter buffer. Leave empty to use the global latency profile default.

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