Enum DecklinkCaptureTimecodeSource

Namespace

VisioForge.Core.Types.Decklink

Assembly

VisioForge.Core.dll

Specifies the source for capturing timecode data from a Decklink card during video capture operations.

public enum DecklinkCaptureTimecodeSource

Fields

Auto = 0

Automatically detects and selects the appropriate timecode source.

The system will attempt to detect timecode from both VITC and HANC sources and use whichever is available. If both are present, the system will choose based on signal quality and reliability. This is the recommended setting for most use cases.

VITC = 1

Read timecode from VITC (Vertical Interval Time Code).

VITC embeds timecode data in the vertical blanking interval of the video signal, specifically in the non-visible lines between frames. This method is commonly used in analog video formats and some SD digital formats. VITC is particularly useful for tape-based workflows as it remains readable even when the tape is paused or moving slowly.

HANC = 2

Read timecode from HANC (Horizontal Ancillary Data).

HANC stores timecode and other metadata in the horizontal ancillary data space of digital video signals. This is the standard method for HD-SDI and other modern digital video formats. HANC provides more reliable timecode transmission in digital workflows and supports additional metadata beyond just timecode.

Remarks

Timecode is essential for professional video production, providing frame-accurate time references for synchronization and editing. Different video formats and equipment may embed timecode in different parts of the video signal, so selecting the correct source is important for accurate timecode capture.