Advanced Hardware Keyer Usage

vidhw chipAJA video boards generally include a Mixer Keyer element.  DrasticDDR, MediaNXS, and QuickClipXO do not directly control the Mixer Keyer, but they are designed to allow the user to use the Mixer Keyer alongside the main software.

To use Drastic software with the Mixer Keyer, you will need:

  • Drastic software (MediaNXS, DrasticDDR, etc)
  • Xena Router (Cables on OS-X) tool from the driver install (available here)

The way Drastic software works, once it is in playback or record mode, it does not re-route the AJA card.  If you switch between pause/play and stop/ee/record, then you will need to re-setup the Xena Router.  Before trying to re-route the Xena Router, running MediaNXS and playing/recording will give you an idea of how the routing works.

 

To set up the Mixer Keyer for keying over playback, move the cables like this:

xenarouter

The Frame Store 1 holds the video image.  If it is an RGBA setup like above, then click the output of the CSC 1 and connect it to the top of the Mixer Keyer element.  If it is a YCbCr setup, connect the Frame Store 1 directly to the Mixer Keyer.

SDI In 1 will have the input.  Connect it to the second input of the Mixer Keyer and the key in (lower dot of the pair) of the second input of the Mixer Keyer.

Finally connect the Mixer Keyer output to SDI Out 1 input and make sure the Video lock is set to SDI In 1 so the signals lock up.

This setup will allow the Mixer Keyer to be used.  To actually set the Mixer Keyer settings, right click on the Mixer Keyer element and bring up the Mixer Keyer dialog below:

mixerkeyer

The setup of this dialog is highly dependent on what you are trying to do.  The setup above takes a playback and does a luma key using the SDI 1 input to create the output.

More great products from Drastic

ProRes Color Shifts In Post Production
ProRes Color Shifts In Post Production ProRes itself is very well defined, and should be completely shift free in the YCbCr domain at 10 bits per component.  The transform to YCbCr from RGB can ... Tips, Tricks and Technical Information
QuickClipXO Flags
QuickClipXO Flags   There are some flags that can be used to modify QuickClipXO.   QuickClipXO.exe [-nsthqrvd] [targetaddress[:port]] n ... Tips, Tricks and Technical Information
Loop HLS Recording SDI/IP
Loop HLS Recording SDI/IP Net-X-Code supports loop recording of multi bitrate HLS streams from IP or SDI sources.  Setting this up requires configuration of the capture component an... Tips, Tricks and Technical Information
Web Server Setup for DrasticDDR
Web Server Setup for DrasticDDR All Drastic server digital disk recorder (DDR) products have a built in web server for local use. If you have a VVW Series, Titan Series, ClipRecorder, or Inges... Tips, Tricks and Technical Information
Controlling videoQC
Controlling videoQC videoQC can be called by external applications with command line parameters, keyboard/mouse, cut/paste and via a full REST/HTML command set. If there is already... Tips, Tricks and Technical Information