# Adaptive bitrate  support h265 and h264 in same smil file

**URL:** <https://community.wowza.com/t/adaptive-bitrate-support-h265-and-h264-in-same-smil-file/48668>\
**Category:** Wowza Streaming Engine\
**Created:** [May 5, 2017, 1:00pm UTC](https://community.wowza.com/t/adaptive-bitrate-support-h265-and-h264-in-same-smil-file/48668 "2017-05-05T13:00:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Abul\_Rasa](https://avatars.discourse-cdn.com/v4/letter/a/bb73d2/32.png) [@Abul\_Rasa](https://community.wowza.com/u/Abul_Rasa)\
**Post date:** [May 5, 2017, 1:00pm UTC](https://community.wowza.com/t/adaptive-bitrate-support-h265-and-h264-in-same-smil-file/48668/1 "2017-05-05T13:00:41Z")

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I just need to confirm wowza support h265 and h264 in same smil file in adaptive bitrate streaming.

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**Author:** ![Paul\_Shields](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/paul_shields/32/390_2.png) [@Paul\_Shields](https://community.wowza.com/u/Paul_Shields)\
**Post date:** [May 5, 2017, 4:34pm UTC](https://community.wowza.com/t/adaptive-bitrate-support-h265-and-h264-in-same-smil-file/48668/2 "2017-05-05T16:34:42Z")

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Hello Abul,

For adaptive bitrate (ABR) you should ensure that all renditions are identical in codec and keyframe to ensure that switching is successful.

Regards,

Paul