Presented in the IMTC MPEG DASH webinar, February 16th 2012

1. PSS AG

2. Charter and history
Initially the group was created to do IOT test of the Packet Switch
Streaming Service defined by 3GPP SA4
• Content generation : AMR/AAC, H263/MPEG4
• Streaming Technology : RTSP/RTP
• Features: basic streaming, Rate Adaptation, Fast Content Switching…
As market requirement evolved, the focus of the group has shifted to HTTP
streaming technology:
• HLS tests started in 2010
• MS Smooth Streaming addressed in 2011
MPEG-DASH (Dynamic and Adaptive HTTP streaming) is the natural
next step

3. Way of Working
• Define test cases and test specifications taking into
account
– Formats and protocols
– Requirements from the different contributors
• Perform multi-vendor client-server interop tests
– One-on-One sessions over Internet
– Virtual plugfests over Internet
– Face-to-face plugfests
• Collect and share issues, get to common analysis
and understanding
• Feedback to standardization body if needed

4. Practical Organization
• Regular confcalls (bi-weekly)
• Technical discussions over the dedicated IMTC
reflector
• Face-to-Face events organisation
– Participation to IMTC SuperOp!
– Specific PSS meetings organized by the group and hosted
by one member (once or twice a year)
• Virtual events organized by the group
• Co-Chairs: Yves Ramanzin (PV), Christophe Dutein
(NXP)

5. MPEG-DASH
Target to have basic streaming tests at next SuperOp!
16-20 April 2012
• Discussions started in Q4 2011
• Very early test cases implemented at PSS face-to-
face event held in October
• Currently discussing the scope of the tests and the
definition of the test specification