Scoring Video Overlay
Want to showcase your team's performance with wrestling-specific, professional looking, automated scoring graphics embedded in your event video? Here's an example.
Takedown Scoring and Stats automatically generates up to five scoring graphics -- match clock, match score, riding time (college), team score and team summary stats -- for any dual meet. These graphics are sent over the WiFi network and available to any video production system on the same network. Because the graphics are network-delivered, your scoring iPad and video production system can be independently located in your venue.
With this feature, a team can easily produce professional quality video just by virtue of scoring matches with Takedown.
In settings, turn on Scoring Video Overlay. Enable any or both of the additional options.
Click or tap the image to the left for a tutorial.
COnfiguring your video Production System
The Takedown scoring graphics are transmitted over Wifi as NDI Sources. NDI is a technology for sending video objects over a network. In this tutorial, we use the open-source and free Open Broadcaster Software (OBS) Studio along with the NDI Plug-in on a Windows 10 computer.
Click or tap the image to the right for a tutorial.
This is an example of the OBS video output using Takedown Scoring Graphics with an actual college match (Boyd v. Dean, Dec 2016). With OBS you can direct your video to a live streaming site, like Youtube Live, or to a file for uploading at a later time.
Click or tap the image to the left for demo.
- Confirm OBS Studio (or vMix) is installed if using PC-based mixer
- OBS: download the NDI Plug-In and install
- OBS: after installing NDI Plug-In, restart your PC
- OBS: import this Scene Collection. Adjust as necessary
- Confirm your Takedown iPad and your PC are on the same network
- On your PC, change your Network profile to Private
- On your PC, change any security software to allow incoming connections
- On your PC, change any security software to enable "discoverability"
For more information
- Overview of how the system works
- Network Configuration and Considerations
- NDI Benefits
- Bits and bytes
- The scoring graphics require about 100 kbps of network bandwidth
- Takedown and your video production system must be on the same IP subnet. NDI doesn't work reliably across routed networks.
- If using a PC-based video production system, the Windows firewall must be configured to allow reception of the NDI stream. Configure your PC to use the "Private" Network Category for best results. Your PC must be "discoverable."
- More on underlying NDI protocols here and here.
- Use the NDI Tools to verify whether your PC is can receive NDI streams. NDI Monitor and NDI Test Patterns are especially helpful in diagnosing network issues.
- Since NDI is network-based, you can have multiple video production systems sourcing the same Takedown Scoring graphics.
- NDI Video Data Flow here.
- Open Broadcaster Software (OBS) Studio
- This is the same software recommended by Trackwrestling for Trackcast.
- We've tested OBS Studio on a 64-bit Windows 10 PC with a multi-core Intel processor (i5-2400 @ 3.10 Ghz) and 8 gigabytes RAM. Although the Takedown scoring graphics aren't network or CPU intensive, video production is. Use the most powerful PC you can wrangle.
- Embedded Intel graphics processors might not have the horsepower to render the video in a timely manner. If possible, use a PC or laptop with a recent and dedicated graphics processor.
- OBS with the NDI plug-in isn't reliable on an Apple computer and we don't recommend this configuration at this time.
- The OBS NDI plug-in is very popular and is updated every few weeks. Check for latest version.
- When you install the OBS NDI plug-in, you'll need to restart your PC. Not doing a restart will cause you grief.
- After you configure your Takedown Scenes in OBS, be sure to save your Profile and Scene collections. Next time, you won't need to reposition and resize all of the Takedown NDI Sources! Good time-saver!
- More OBS Goodies
- Check out the streaming options! YouTube Live, Twitch, etc. We tested YouTube Live and Facebook Live and both worked fine.
- You'll need at least 2 Mbps of upstream bandwidth to get reasonable quality to your live viewers.
- If you stream, you might also enable "Start Recording" if your PC has the horsepower to do both. This way, if the streaming gets flakey then you'll have a copy of the video on your hard disk drive and can upload at a later time.
- Connecting a Video Camera to OBS
- Not our expertise, but devices of this type are inexpensive and popular.
- Slightly more expensive but more flexibility is this device.
- Trackwrestling has a helpful tutorial about adding a camera video source to OBS.
- Use a DSLR as a video capture device with this.
- There's an app which will turn your iPad or iPhone into an NDI video camera. The video is transmitted over the network as an NDI source just like the Takedown scoring overlays. Be advised: NDI video is very network intensive requiring 40 Mbps of bandwidth! You'll need a dedicated network to successfully make this work.
- Other PC Software Video Mixers
- Doesn't require as much CPU bandwidth as OBS for rendering the scoring graphics.
- NDI is built into the software; no need to download a plug-in
- Lots of advanced configuration compared to OBS
- Composing scenes isn't as easy or intuitive as OBS
- Basic version is free, but very limited.
- Full version is $60-$150 depending on your needs.
- Full version two month free trial available!
- NDI is build into software; no need to download a plug-in
- Like vMix, CPU efficient. Much better than OBS.
- Lots of advanced configuration compared to OBS
- Composing scenes is nearly as easy as OBS
- No free version and trial is watermarked
- Very expensive: $695
- NDI implementation is buggy; not recommended (11/8/17)
- NDI integration in beta.
- Currently, NDI use crashes computer (10/5/17).
- Newtek TriCaster line. Check model specification for NDI support.
- Other useful resources