如何知道 MPEG DASH 中的直播何时结束？
How to know when a Live Streaming has ended in MPEG DASH?
我正在为 MPEG DASH 制作播放器，在阅读 ISO 后，我不确定如何知道直播是否结束？
到目前为止，我基于 BaseURLs 和 (SegmentTemplate + Representation) 组合构建了 URL，我可以下载来自 SegmentTimeline 的段但是，有一个简单的属性可以检查：
- 知道我应该多久更新一次 MPD
- 知道我应该验证什么 attribute/formula 才能停止流式传输吗？
好像是断了才能下载。不是吗？
DASH-IF Interoperability Points 文档中有一个部分：
5.2.9.5.3. End of live content
Live services can reach a point where no more content will be produced
- existing content will be played back by clients and once they reach the end, playback will cease.
This document requires:
- When this occurs, services SHALL define a fixed duration for the last
period, remove the MPD@minimumUpdatePeriod attribute and cease
performing MPD updates to signal that no more content will be added to
the MPD.
- The MPD@type MAY be changed to static at this point or later
if the service is to be converted to a static MPD for on-demand
viewing.
另请参阅讨论 here。
我正在为 MPEG DASH 制作播放器，在阅读 ISO 后，我不确定如何知道直播是否结束？
到目前为止，我基于 BaseURLs 和 (SegmentTemplate + Representation) 组合构建了 URL，我可以下载来自 SegmentTimeline 的段但是，有一个简单的属性可以检查：
- 知道我应该多久更新一次 MPD
- 知道我应该验证什么 attribute/formula 才能停止流式传输吗？
好像是断了才能下载。不是吗？
DASH-IF Interoperability Points 文档中有一个部分：
5.2.9.5.3. End of live content
Live services can reach a point where no more content will be produced - existing content will be played back by clients and once they reach the end, playback will cease.
This document requires:
- When this occurs, services SHALL define a fixed duration for the last period, remove the MPD@minimumUpdatePeriod attribute and cease performing MPD updates to signal that no more content will be added to the MPD.
- The MPD@type MAY be changed to static at this point or later if the service is to be converted to a static MPD for on-demand viewing.
另请参阅讨论 here。