Encoding a Live Source while Broadcasting

To broadcast a live event and capture that event for future playout on the Digital Broadcaster, split the live feed from the source to the live broadcast and to the onboard MPEG Encoder connected to the Digital Broadcaster. The TelVue^® Switch Module can split the inputs as well as the outputs.

Required Equipment

• Digital Broadcaster
• Onboard MPEG Encoder
• Video feed from live source
• TelVue Switch Module

With the on-board encoder (or an external encoder) you may encode a live source while broadcasting in one of the following ways.

• If you have a video switch, set up cross-points for the live source as an input to the route to the live channel output (live programming) and to the output that feeds the encoder. Then schedule an encode for the duration of the event.

The events populated would look like:

Add Switch: Live Source → Channel Output for duration of the event

Add Switch: Live Source → Encoder Input for duration of event

Add Capture: For duration of event with the file name.

Subsequent playbacks can play directly off of the digital file.

• If you do not have a video switch, you can use the encoder input as an “IP Video” switcher to broadcast live while encoding as follows.

1. Plug the live source into the encoder.
2. From Config → Feed Setup, enable Network Streaming on the encoder. Set the IP address to 127.0.0.1 and use a UDP port not in use by any other streaming applications that may send networked data to the video server.
3. From Config → Feed Setup, add a new stream named “Live Encoder” and assign it the UDP port set in the above step.
4. From Programming → Classic View, choose Add Stream Event, select the “Live Encoder” as the feed, and set the appropriate time and duration.
5. From Programming → Classic View, choose Add Capture Event and fill in the appropriate time and duration.

The same technique above can be used with an external encoder appliance such as TelVue’s C500 streaming encoder. In this case connect the live source to the external encoder unit and stream that encoder to the IP address of the Digital Broadcaster on an available UDP port into which the server can tune.