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Signalling the last segment number in Period #2430

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avelad opened this issue Feb 27, 2020 · 2 comments · Fixed by #6416
Closed

Signalling the last segment number in Period #2430

avelad opened this issue Feb 27, 2020 · 2 comments · Fixed by #6416
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@avelad
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component: DASH The issue involves the MPEG DASH manifest format priority: P3 Useful but not urgent status: archived Archived and locked; will not be updated type: enhancement New feature or request
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v4.8

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@avelad
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avelad commented Feb 27, 2020

Add support to the feature described in DASH IOP 4.4.3.6. Signalling the last segment number in Period https://dashif.org/docs/DASH-IF-IOP-v4.3.pdf

As indicated in clause 4.3.2.2, the content provider may not offer the last segment that is signaled in the MPD. If this is the case, the content provider should signal that the last segment is not the one indicated in the MPD.
At least the following three options may be considered:
 - Use the lmsg signalling as defined in clause 4.4.3.5.
 - Use the Segment Timeline with @r value greater or equal to 0.
Add a Supplemental Descriptor with @schemeIdUri set to http://dashif.org/guidelines/last-segment-number with the @value set to the last segment number.

This feature request is add support to <SupplementalProperty schemeIdUri="http://dashif.org/guidelines/last-segment-number" value="368" />

Sample stream: http://dash.akamaized.net/dash264/TestCasesIOP41/LastSegmentNumber/1/manifest_last_segment_num.mpd
@joeyparrish joeyparrish added this to the Backlog milestone Feb 27, 2020
@joeyparrish joeyparrish added the type: enhancement New feature or request label Feb 27, 2020
@joeyparrish
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Sounds reasonable. Thanks!

@joeyparrish
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This intersects with my work on #1339, which changes the way we generate segment references for DASH. It will be relatively easy to integrate after that.

@theodab theodab added component: DASH The issue involves the MPEG DASH manifest format priority: P3 Useful but not urgent labels Sep 30, 2021
@avelad avelad self-assigned this Apr 5, 2024
@avelad avelad modified the milestones: Backlog, v5.0 Apr 8, 2024
@avelad avelad mentioned this issue Apr 8, 2024
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avelad added a commit that referenced this issue Apr 9, 2024
@avelad
feat(DASH): Add signalling the last segment number in Period (#6416)
07a3241 
Closes #2430

Test stream:
http://dash.akamaized.net/dash264/TestCasesIOP41/LastSegmentNumber/1/manifest_last_segment_num.mpd
@shaka-bot shaka-bot added the status: archived Archived and locked; will not be updated label Jun 8, 2024
@shaka-project shaka-project locked as resolved and limited conversation to collaborators Jun 8, 2024
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@avelad avelad

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component: DASH The issue involves the MPEG DASH manifest format priority: P3 Useful but not urgent status: archived Archived and locked; will not be updated type: enhancement New feature or request
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v4.8
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feat(DASH): Add signalling the last segment number in Period avelad/shaka-player
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@joeyparrish @avelad @shaka-bot @theodab