# specify schemeIdUri on mpd file for auto switching

**URL:** <https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625>\
**Category:** Wowza Streaming Engine\
**Tags:** transcoder\
**Created:** [July 8, 2019, 4:51pm UTC](https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625 "2019-07-08T16:51:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Oscar\_WONG](https://avatars.discourse-cdn.com/v4/letter/o/b2d939/32.png) [@Oscar\_WONG](https://community.wowza.com/u/Oscar_WONG)\
**Post date:** [July 8, 2019, 4:51pm UTC](https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625/1 "2019-07-08T16:51:56Z")

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Since the AdaptationSet are separated on mpd file, the player cannot switch them if they are not in the same group.

Instead, how could I specify the “urn:mpeg adaptation-set-switching:2016” property on mpd file to specify the other adaptation set ids to allow switching.

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**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [July 8, 2019, 11:50pm UTC](https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625/2 "2019-07-08T23:50:00Z")

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@Oscar WONG, tech support wants to know what version of Engine you are using?

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<div class="post-metadata">

**Author:** ![Oscar\_WONG](https://avatars.discourse-cdn.com/v4/letter/o/b2d939/32.png) [@Oscar\_WONG](https://community.wowza.com/u/Oscar_WONG)\
**Post date:** [July 9, 2019, 12:30am UTC](https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625/3 "2019-07-09T00:30:50Z")

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@Rose Power-Wowza Community Manager

Wowza Streaming Engine Version 4.7.7 (build 20181108145350)

Wowza Streaming Engine Manager Version 4.7.7 (build 20181108145350)