1. Stream Like a Boss: Adaptive Bitrate Video Streaming Stephen Barker, Digital Frontiers Media, Inc. Dave Kopecek, Aisle 8, Inc. 1

2. The Problem Existing Site 400 HD videos Slow video loading/buffering/playback latency (10-11 seconds average; sometimes up to 30 seconds!) Stuttering video playback Web server disk space being exhausted Budget Two-Pronged Issue of User Experience (stutter) v. Site Maintainability 2

3. Does NetFlix hate you? 3 Image: cnet.com cnet.com

4. Adaptive Bitrate Streaming 4 Image: encoding.com encoding.com

5. HLS Video File Structure 5 Image: apple.com apple.com

6. Stutter Solution: Amazon Elastic Transcoder 6

7. Transcoder Workflow 7

8. AWS Elastic Transcoder HLS Presets 8

9. Pipelines and Jobs 9

10. AmazonS3 Events 10

11. AWS Lambda 11

12. Node.js Lambda Function 12

13. Lambda Initiated HLS Files 13

14. Standard Drupal File Handling 14

15. AmazonS3 Module 15

16. AmazonS3 CORS Upload Module 16

17. Tying It All Together 17

18. CloudFront CDN Setup in Minutes 18

19. Two URL Issues 19

20. hook_file_url_alter 20

21. hook_file_url_alter (cont.) 21

22. Finishing Touches Taking care of all existing files. Bulk upload all files from Drupal files directory to S3 Bulk upload all files from Drupal files directory to S3 UPDATE file_managed SET uri = REPLACE(uri, 'public', 's3') WHERE INSTR(filemime, 'video') > 0; UPDATE file_managed SET uri = REPLACE(uri, 'public', 's3') WHERE INSTR(filemime, 'video') > 0; 22 Lambda cleanup functions. If Elastic Transcoder is succesful, then move original mp4 to an Archive bucket. If Elastic Transcoder is succesful, then move original mp4 to an Archive bucket. If Elastic Transcoder fails send Amazon SNS push notification If Elastic Transcoder fails send Amazon SNS push notification

23. Results Both New and Existing Videos now served via fast Amazon CloudFront CDN! End User Experience - No stuttering video playback or video stoppage! Maintainer Experience - No change from standard Drupal node creation. ZERO web server disk space used and nearly infinite S3 expandability! Super cheap and easy to maintain! 23

24. Stephen Barker stephen@digitalfrontiersmedia.co m stephen@digitalfrontiersmedia.co mhttps://twitter.com/DigitalFrontier 24 Dave Kopecek dave@aisle8.net https://twitter.com/davekopecek