After using the New Channel Wizard an engine is automatically created and added to all Layers of the Channel, but there can be situations where you would like to :
Separate the Video and the Graphics playout.
Set up a redundant engine.
Add several individual playout Channels to a single just:live user interface.
To make this work, a new engine has to be made and added to a Layer.
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check or even change the attributes of an existing engine.
Checking the attributes of an Existing Engine
You can check the configuration of an existing engine without stopping the channel.
Select the Channel in the Devices & Channels list.
Click on the Layers & Engines tab.
On one of the desired Layers, open the drop-down menu in the column Primary or Redundant just:out Engine and select Configure engine.
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This opens the Engine Configuration window, where you can check the settings defined for this engine.
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Changing the Attributes of an Existing Engine
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Stop the desired Channel by deactivating the checkbox in front of it. Stopping a Channel will also stop the Just Out engine and therefore the final output.
Select the Channel in the Devices & Channels list.
Click on the Engines & Layers & Engines tab.
On one of the desired LayerLayers, open the drop-down menu in the column Primary or Redundant just:out Engine and select New Configure engine.
Configure the engine accordingly to your needs (see Engine Configuration below).
Activate the checkbox in front of the Channel to start it again and to take over the changes you made.
Close the configuration window and drag the Channel from the Connections tab to the Multi-viewer area.
Configuring a New Engine
After selecting a new engine you can configure it in this window.
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Change one or several engine attributes described below.
Setup Tab:
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Network: Engine network configuration.
Name: Name of the engine.
IP address: IP address of the machine which is running this engine.
Port: Port which is used by this just:out engine.
Heartbeat Timeout: Defines the number of heartbeats which can be missed, before an engine is defined as stopped. This can be useful in setups, where the heartbeat is missing due to an unreliable network.
Video device & output: Mode for the final video output.
Virtual: No dedicated video hardware is available for the final output on the machine running the Just Out engine.
AJA: In case you have an AJA device installed on the machine running Just Out and you would like to use this device as output device.
Blackmagic: In case you have a Blackmagic device installed on the machine running Just Out and you would like to use this device as output device.
Video buffer: Select a higher setting if the data rate needed for playing the Video and Graphic files is high and/or the continuous data rate your storage system is low. If your storage system can deliver a very high continuous data rate and the data rate needed to play the Video and Graphics files is low, you can select a small buffer. Buffer values above 6 seconds should be avoided, because such high buffer values put additional pressure on the engine.
Preview: Quality of the Preview which is shown in the user interfaces.
Frame-rate: Allows you to specify the number of frames per second for the video Preview. This should never be higher than the native frame rate of the Channel.
Resolution: This defines the number of pixels used for the Preview. Select from one of the values available.
Quality: This defines the amount of compression which is applied to the uncompressed image before it is used for the Preview.
Apply new engine to
Selected layer only: Applies the engine to the selected layer only.
All non assigned layers: Applies the engine to layers which do not have an engine assigned.
All layers: Applies the engine to all available layers.
Checking and Configuring an Existing Engine
You can check the configuration of an existing engine without stopping the channel. Doing the same but with the channel stopped first, allows to change the settings and not only to check them.
Select the Channel in the Devices & Channels list.
Click on the Layers & Engines tab.
On one of the desired Layers, open the drop-down menu in the column Primary or Redundant just:out Engine and select Configure engine.
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This opens the Engine Configuration window, where you can check )and change) the settings defined for this engine.
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Repositories Tab:
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Override channel repository:
Activate this checkbox and Add Video, Audio and Graphics Repositories to this Engine. This can be useful for example in case you would like to use different repositories for the Main and the Redundant Engine.