# VP9 temporal scalability without SVC?

**URL:** <https://mediasoup.discourse.group/t/vp9-temporal-scalability-without-svc/2238>\
**Category:** Integration\
**Created:** [January 11, 2021, 6:50pm UTC](https://mediasoup.discourse.group/t/vp9-temporal-scalability-without-svc/2238 "2021-01-11T18:50:11Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![ea167](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ea167/32/404_2.png) [@ea167](https://mediasoup.discourse.group/u/ea167)\
**Post date:** [June 14, 2021, 10:09pm UTC](https://mediasoup.discourse.group/t/vp9-temporal-scalability-without-svc/2238/21 "2021-06-14T22:09:18Z")

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Hello @nazar-pc, did you finally get it to work, or did you give up on using Gstreamer to produce VP9 SVC stream?

@vpalmisano thanks for your insight about rtpvp9pay!

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**Author:** ![nazar-pc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/nazar-pc/32/369_2.png) [@nazar-pc](https://mediasoup.discourse.group/u/nazar-pc)\
**Post date:** [June 15, 2021, 12:48am UTC](https://mediasoup.discourse.group/t/vp9-temporal-scalability-without-svc/2238/22 "2021-06-15T00:48:14Z")

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There are 2 parts to this:

1. GStreamer’s vp9enc API supports only temporal scalability for now, full SVC may be available at some point, but not yet
2. rtpvp9pay doesn’t generate any VP9 headers for now, so you can’t take advantage of even temporal scalability, sadly

Same story about VP8’s temporal scalability BTW. Would be nice if someone can contribute that to GStreamer 😉

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