Decklink_CCPassthrough708WindowReset
property Decklink_CCPassthrough708WindowReset: Boolean read GetDecklink_CCPassthrough708WindowReset write SetDecklink_CCPassthrough708WindowReset default DEF_Decklink_CCPassthrough708WindowReset;
public bool Decklink_CCPassthrough708WindowReset { get; set; }
Public Property Decklink_CCPassthrough708WindowReset As Boolean
BOOL GetDecklink_CCPassthrough708WindowReset ();
void SetDecklink_CCPassthrough708WindowReset (BOOL Value);
DeckLink VANC renderer, closed caption passthrough: the CEA-708 caption window is cleared and its pen reset when the source defines it again for a new caption (enabled by default).
Remarks
Used with VideoRendererExternal = vre_BlackMagic_Decklink_VANC, when the captions of the source are passed through to the SDI output (e.g. SMPTE 436M caption track of a MXF file played with the Datastead source).
When enabled (default), each DefineWindow of the CEA-708 data of the source that starts a new caption (window not defined yet, or displayed, hidden or toggled since its previous DefineWindow) is preceded by HideWindows and ClearWindows of the window, and followed by SetCurrentWindow and SetPenLocation (0, 0). A DefineWindow sent again during a caption (periodic resynchronization of roll-up or paint-on captions) is passed unchanged.
Needed with sources that start each caption with a DefineWindow of the window already displayed, without erasing it first (e.g. 608 captions converted to 708 in MXF files): the decoders keep the previous text and the pen position, the captions are then shifted or mixed on screen.
Set to False to send the CEA-708 data of the source unchanged.
Requires the DeckLink renderer DLL 1.1.13.0 or later (ignored by the versions older than 1.1.12.0). Can be changed while playing.