This document outlines 10 exercises for learning how to use Kurento Media Server (KMS) and developing multimedia applications. The exercises range from basic "Hello World" type applications to more advanced topics like creating custom modules, group calling functionality, and integrating computer vision capabilities like crowd detection. Hints and links are provided to guide developers in completing each exercise.

1. Open APIs for Open Minds
The Stream Oriented Generic Enabler – SO GE
Developing rich multimedia applications with FIWARE
EXERCISES
IVAN GRACIA
igracia@kurento.org

2. K-1: Deploy a KMS instance
 Prerequisite
• To have a FIWARE Lab account
 Steps
• Go to Stream Oriented catalogue page
• Follow the steps in “Deploying a dedicated GE instance based on an image”
• Check if KMS is working connecting to localhost:8080/
 Hints
• TCP port 8080 needs to be open
• UDP ports from 1024 to 65535 need to be open
Easy

3. K-2: Install your KMS instance
 Prerequisite
• To have an Ubuntu 14.04 box (sudo)
 Steps
• http://www.kurento.org/docs/current/installation_guide.html
 Hints
• If KMS is behind a NAT don’t forget to configure a STUN server
Easy

4. K-3: Execute the Hello World application
 Prerequisite
• To have a KMS up and running
 Steps
• http://www.kurento.org/docs/current/tutorials/js/tutorial-1-helloworld.html
 Hints
• WebRTC is only supported in Chrome or Firefox
Easy

5. K-4: Make a recorder/player application
 Prerequisite
• To have a KMS up and running
 Steps
• Start from K-4
• Add a “Record” button to record the media stream in KMS
• Add a “Play” button to play the recorded stream in the browser
 Hints
• You need to use the following KMS endpoints
› RecorderEndpoint
› PlayerEndpoint
• Both endpoints require a file URI. Example
› file:///tmp/my_file.webm
Mediu
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6. K-5: Execute Kurento one-to-many application
 Prerequisite
• To have a KMS up and running
 Steps
• For Java developers
› http://www.kurento.org/docs/current/tutorials/java/tutorial-3-one2many.html
• For Node.js developers
› http://www.kurento.org/docs/current/tutorials/node/tutorial-3-one2many.html
 Hints
• More?
Easy

7. K-6: Put a hat on your broadcast
 Prerequisite
• To have a KMS up and running
 Steps
• Start from K-5
• User FaceOverlayFilter to put a hat on top of heads shown on the broadcasted signal
 Hints
• You can inspire in this example
› http://www.kurento.org/docs/current/tutorials.html#tutorial-2-webrtc-magic-mirror
Mediu
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8. K-7: Execute a call with recording and filters
 Prerequisite
• To have a KMS up and running
 Steps
• Java developers
› http://www.kurento.org/docs/current/tutorials/java/tutorial-5-one2one-adv.html
 Hints
• More?
Mediu
m

9. K-8: Create your own module
 Prerequisite
• To have a KMS up and running
 Steps
• Create a module capable of adding text captions to video steams
 Hints
• http://www.kurento.org/docs/current/mastering/develop_kurento_modules.html
Hard

10. K-9: Create a group call application
 Prerequisite
• To have a KMS up and running
 Steps
• Implement the WWW GUI
› Example Google Hangouts
• Implement the Application Server logic
› Single room
› No AAA mechanisms
 Hints
• https://github.com/Kurento/kurento-tutorial-java/tree/release-5.1/kurento-group-call
Hard

11. K-10: Detecting crowds
 Prerequisite
• To have a KMS up and running
 Steps
• Install the crowd detector module
• Obtain a street feet
› You can use this file if you don’t have a live source
› http://files.kurento.org/video/puerta-del-sol.ts
• Configure ROIs
• Obtain events
• Publish events
› For example, in Orion
• Visualize the stream in a browser
 Hints
• http://www.kurento.org/docs/current/tutorials/java/module-3-crowddetector.html
Hard

12.  http://fi-ppp.eu
 http://fi-ware.eu
 Follow @Fiware on Twitter !
Thanks !
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