Items discussed during the MPEG liaison call

[irajs]

Possible update paragraphs and owners of liaison:

1. Update on our progress on V5 (Thomas)
2. Ask Daniel if he needs to provide any update on conformance software/test vectors (Daniel)
3. New release of dash.js (Will)
4. Content protection update/request (Laurent)
5. CMAF related issues (Thomas). Ask to consider addressing missing segment signaling in CMAF (Alex).
6. We support the MPEG's work in AMD2 (Iraj). We also request for MPEG to consider issuing a new edition.
7. https://github.com/Dash-Industry-Forum/MPEG/issues/23 (Ye-Kui)
8. (Maybe) Adding new metrics (https://github.com/Dash-Industry-Forum/MPEG/issues/24) (Thomas-Daniel)

timeline: -Everybody provides their text by Friday to Iraj.

• Iraj to send out the liaison draft by Monday morning.
• Finalize and approve at the Monday IOP call

[haudiobe]

Please also add: https://github.com/Dash-Industry-Forum/Live/issues/71

[wilaw]

@Iraj - here is the text for item [3].

Over the past 3months, dash.js open source project released version 3.1.2 of the dash.js player on July 24 2020 and version 3.1.3 on Sept 8 2020. These releases are defined here: https://github.com/Dash-Industry-Forum/dash.js/releases. Together, these releases brought the following improvements:

• New features:
  • Add support for version 1 Events
  • Support for Clearkey license acquisition using a server component
  • Make low latency specific reduction and multiplication factor for retry attempts and retry interval configurable.
  • Add support for transition phase between live and on-demand streams (NPVR)
  • Allow setInitialMediaSettingsFor with fragmentedText media type
  • Use max segment duration for single period manifests and live delay calculation
  • Update thumbnails API : Minor fixes + display thumbnails bitrate list in control bar
  • Define a threshold which controls catchup mechanism for low latency streaming
  • Store and use fragmentedText settings in localStorage
  • Adjust low latency sample to include catchup playback rate threshold
• Improvements
  • Multiperiod improvements and gap handling
  • Use previous stream to determine whether smooth period transition is possible
  • Use the segments in the SegmentTimeline as a reference for the DVR window. This behavior can be adjusted via settings parameter
  • Patch audio track switching for GoogleCast devices
  • Add protocol info to manifest info in order to distinguish between MSS and DASH
  • Sample sizes for Throughput history: Reverse order of samplesize variance test to match usage
  • Update jsdoc for UrlLoader, DefaultUrlUtils, SchemeLoaderFactory
  • Set minBufferTime to one video segment duration
  • Use document.fullscreenElement
  • Consider gap/discontinuity limit as tolerance when determining buffer length
  • Enable calculating segment availability range according to effective segment timeline if timeShiftBufferDepth is not defined.
  • Remove profiles from mimeType attribute as they will cause problems when doing capability checks
  • Reorganize reference stream dropdown, add provider and sort by use case
  • Solves live seeking for non-modern browsers for which seeking at a time on video element fails when there is no buffered data at requested timeAdd protocol info to manifest info in order to distinguish between MSS and DASH
• Multiple bugfixes (26)