Content Generation and Practical Applications for Dynamic Adaptive Streaming over HTTP with a Focus on Mobile and Peer-Assisted Streaming
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This document discusses dynamic adaptive streaming over HTTP (DASH) and compares different streaming protocols. It summarizes that HTTP streaming has become popular but there is no standard, and evaluates Microsoft Smooth Streaming, Apple HLS, Adobe Dynamic Streaming, and MPEG-DASH in a vehicular test environment. MPEG-DASH achieved the highest average bitrate but also the most switches, while Apple HLS had the lowest average bitrate but fewest switches. The document also introduces the concept of peer-assisted streaming and simulations showing it can reduce server load by 25%.
![Results Comparison
Name
Average
Bitrate [kbps]
Average Switches
[Number of
Switches]
Average
Unsmoothness
[Seconds]
Microsoft
1522
51
0
Adobe
1239
97
64
Apple
1162
7
0
MPEG –
DASH
1464
166
0
FTI | Stefan Lederer
Slide 9](https://image.slidesharecdn.com/lederermasterthesispresentation-fti-140226063558-phpapp01/85/Content-Generation-and-Practical-Applications-for-Dynamic-Adaptive-Streaming-over-HTTP-with-a-Focus-on-Mobile-and-Peer-Assisted-Streaming-9-320.jpg)
Content Generation and Practical Applications for Dynamic Adaptive Streaming over HTTP with a Focus on Mobile and Peer-Assisted Streaming
- 1. Stefan Lederer Fö rd e r ve re i n Te c h n i s c h e Fa ku l tät Content Generation and Practical Applications for Dynamic Adaptive Streaming over HTTP with a Focus on Mobile and Peer-Assisted Streaming
- 2. Motivation • HTTP Streaming has become very popular on the Internet – Various different bitrates of the video are available on the server --> choose the best version to load – Easy to use existing CDN structure – No NAT/Firewall issues due to HTTP – Various technologies • BUT: no standard in use! FTI | Stefan Lederer Slide 2
- 3. DASH Dataset Sequences FTI | Stefan Lederer Slide 3
- 4. Vehicular Environment & Test Tracks • Autobahn: Villach-Klagenfurt • Connection: A1 Mobile Internet USB Stick GPRS to HSDPA FTI | Stefan Lederer Slide 4
- 5. Results: MS Smooth Streaming 30 sec. Buffer, smooth representation switch FTI | Stefan Lederer Slide 5
- 6. Results: Apple HTTP Live Streaming Transmission pause, pretty constant quality FTI | Stefan Lederer Slide 6
- 7. Results: Adobe Dynamic Streaming Not suitable, BUT: Incremental Buffer Size FTI | Stefan Lederer Slide 7
- 8. Results: MPEG DASH with Pipelining Tries go get best quality, too many switches FTI | Stefan Lederer Slide 8
- 9. Results Comparison Name Average Bitrate [kbps] Average Switches [Number of Switches] Average Unsmoothness [Seconds] Microsoft 1522 51 0 Adobe 1239 97 64 Apple 1162 7 0 MPEG – DASH 1464 166 0 FTI | Stefan Lederer Slide 9
- 10. Peer Assisted Streaming FTI | Stefan Lederer Slide 10
- 11. Simulation Results - Server - 25 % FTI | Stefan Lederer Slide 11