# Multi bit rate h264 with Wirecast Sending to Wowza

**URL:** <https://community.wowza.com/t/multi-bit-rate-h264-with-wirecast-sending-to-wowza/37408>\
**Category:** Wowza Streaming Engine\
**Created:** [October 20, 2011, 1:43pm UTC](https://community.wowza.com/t/multi-bit-rate-h264-with-wirecast-sending-to-wowza/37408 "2011-10-20T13:43:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Howard\_Wear](https://avatars.discourse-cdn.com/v4/letter/h/eb8c5e/32.png) [@Howard\_Wear](https://community.wowza.com/u/Howard_Wear)\
**Post date:** [October 20, 2011, 1:43pm UTC](https://community.wowza.com/t/multi-bit-rate-h264-with-wirecast-sending-to-wowza/37408/1 "2011-10-20T13:43:49Z")

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Does anyone know if Wirecast has support for sending multi bitrate streams in h264 for Wowza to stream?

Thanks

Howard

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [October 20, 2011, 8:00pm UTC](https://community.wowza.com/t/multi-bit-rate-h264-with-wirecast-sending-to-wowza/37408/2 "2011-10-20T20:00:19Z")

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Howard,

You can set up multiple streams with different bitrates in Wirecast and publish them to a Wowza application, but they have to be key frame aligned. Our tests after the 4.0 release were mixed. You can test with this Property setting:

[https://www.wowza.com/docs/how-to-debug-encoder-multi-bitrate-keyframe-alignment](https://www.wowza.com/docs/how-to-debug-encoder-multi-bitrate-keyframe-alignment)

Richard

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [October 21, 2011, 3:33pm UTC](https://community.wowza.com/t/multi-bit-rate-h264-with-wirecast-sending-to-wowza/37408/3 "2011-10-21T15:33:12Z")

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Thanks for the update, Howard

Richard

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**Author:** ![Benjamin\_Higginbotha](https://avatars.discourse-cdn.com/v4/letter/b/e8c25b/32.png) [@Benjamin\_Higginbotha](https://community.wowza.com/u/Benjamin_Higginbotha)\
**Post date:** [October 20, 2011, 4:35pm UTC](https://community.wowza.com/t/multi-bit-rate-h264-with-wirecast-sending-to-wowza/37408/4 "2011-10-20T16:35:36Z")

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I have confirmed with Telestream that Wirecast 4 is not keyframe aligned. It sorta works through Wowza, but it gets wonky and the different streams tend to drift over time.