International organisation for standardisation organisation internationale de normalisation

Summary of discussions

1. M28193

• 
  Recommendation: issue DCOR2 which includes technical changes in Study of DCOR1 (w13077) and m28193r2. Also add “interoperability brand” definition and usage.
  

1. M28017

1. 
   Continue the CE
   
2. 
   Different contributions are using this core experiments for their intended usecases, which may not be completely outlined. Update the CE with stating each intended use case with detail examples including the various client-server interactions (similar to m27097) in CE.
   
3. 
   Evaluate various proposals comparatively against the above use-cases.
   

1. M28211

• 
  Add a section into Part 3 Study PDTR on the behavior of adaptive streaming using content generated by conventional encoder and how encoding can be improved for DASH streaming [Yuriy]
  
• 
  Describe the usecase in details and diagram, including post-encoder process for generation of quality information.
  
• 
  Continue this CE. Detailing the evaluation experiment. Detaling the switching algorithm at the client
  
• 
  Samsung will participate to demonstrate the alternative approach of encoder optimization.
  
• 
  Comparison between various proposed solutions for signaling quality information to the client including meta-data track.
  

4. M28196

Adding how UTC timing information can be obtained by client by adding an element to MPD.

5. M28197

Adding the use of producer reference time box in order to avoid drift to part 1 DCOR.

Recommendation: adding a paragraph to A.8 explaining the above.

Adding the paragraph on leap second to Annex.

6. M28367

Recommendation:

1. 
   Continue the CE.
   
2. 
   Add a paragraph on the possible use of HTTP delta coding to efficiency for updating MPD to Part 3 Implementation Guidelines. Alex
   
3. 
   Add security and efficiency methods of event msg to the CE
   

1. M28193

• 
  Recommendation: issue DCOR2 which includes technical changes in Study of DCOR1 (w13077) and m28193r2. Also add “interoperability brand” definition and usage.
  

8. M28208

To be added in DASH push event CE.

9. M28176

further exploration is needed. Experts are encouraged to bring more contributions on this topic to the next meeting:

• 
  Adding to the adhoc mandate: Exploration of using server/network assisted dynamic streaming using DASH.
  

10. Items for TuC

• 
  URL anchors for MPD
  
• 
  Last segment notification for MPEG-2 TS segments
  
• 
  In-band carriage of digests and signatures
  
• 
  URL Signatures
  
• 
  DASH: Remultiplexing fragments for TS based Segments and dependent Representations
  
• 
  Next segment signaling through HTTP GET extension for CDNs
  
• 
  No change or update on Tuc
  

4. Action Points

17. Conformance and Ref. SW. for DASH (23009-2)

    1. Topics

       1. ISO/IEC 23009-2 1^st edition

2. Contributions

Number	Session	Title	Source	Dispositions
m28027	DASH	Revision of ISO/IEC 23009-2 DIS	Markus Waltl, Christian Timmerer	Accepted N13287
m28039	DASH	Segment Validation for MPEG-2 TS Media Segments	Vladimir Zbarsky, Alex Giladi	Accepted N13287
m28109	DASH	Input for MPEG-DASH access client reference software	Christopher Mueller (bitmovin), Jörg Pöcher, Peter Spiess-Knafl, Stefan Lederer, Christian Timmerer (ITEC)	Accepted N13287
m28190	DASH	On DASH Live Conformance software	Qualcomm Incorporated	Accepted N13287
m28191	DASH	Updated media segment conformance software based on corrigenda	Qualcomm Incorporated, Waqar Zia	Accepted N13287
m28206	DASH	Reference Software for ISO/IEC 23009-4	Vladimir Zbarsky, Alex Giladi	Accepted N13287
m28230	DASH	Update on GPAC tools for DASH	Jean Le Feuvre, Cyril Concolato	Noted

3.