1000Hz Tone Generator

ColourBars Frame

Black frame video

Procedure FillBlack(theFrame : IDeckLinkVideoFrame);
var
  nextword        : Pointer;
  width           : integer;
  height          : integer;
  wordsRemaining  : int64;
  x,y,p           : integer;
  bytes           : PByte;
  bytesPerPixel   : integer;
begin
  theframe.GetBytes(nextword);
  case theFrame.GetPixelFormat of
    bmdFormat8BitYUV : bytesPerPixel:=2;
    bmdFormat10BitYUV : bytesPerPixel:=2;
    bmdFormat8BitARGB : bytesPerPixel:=4;
    bmdFormat8BitBGRA : bytesPerPixel:=4;
    bmdFormat10BitRGB : bytesPerPixel:=3;
  end;

  width:= theframe.GetWidth;
  height:= theframe.GetHeight;
  //FillChar(nextword,(width*height*bytesPerPixel),  #255);
  for y := 0 to height-1 do
    for x:=0 to width-1 do
      for p := 0 to bytesPerPixel-1 do
      begin
        pByte(nextword)^:=$FF;  inc(pByte(nextword),1);
      end;
end;