# Abr VOD Streaming from live transcoded recording

**URL:** <https://community.wowza.com/t/abr-vod-streaming-from-live-transcoded-recording/92654>\
**Category:** Wowza Streaming Engine\
**Created:** [January 8, 2021, 1:17pm UTC](https://community.wowza.com/t/abr-vod-streaming-from-live-transcoded-recording/92654 "2021-01-08T13:17:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Simone\_Marrone](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@Simone\_Marrone](https://community.wowza.com/u/Simone_Marrone)\
**Post date:** [January 8, 2021, 1:17pm UTC](https://community.wowza.com/t/abr-vod-streaming-from-live-transcoded-recording/92654/1 "2021-01-08T13:17:43Z")

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Hi,

I was wondering if is possible to deliver ABR vod stream from static .mp4 files generated with live recorders.

I managed to set transcoder to generate ‘\_source’ and ‘\_360p’.

Before starting live, I setup 2 recorders to automatic start on first keyframe.  
I start live stream.  
Recording goes well (generating 2 .mp4 files) but when I create the realated SMIL file it does not work.

I succesfully managed to transcode file with ffpmeg and get SMIL working that way but  
I was wondering if there was a way to avoid using ffpeg to transcode .mp4 since i already have them recorded from source.

I suspect that the problem is something about video track alignement but I’m not sure since just beginner in video streaming and Wowza.

Thank you so much

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<div class="post-metadata">

**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:** [January 8, 2021, 6:21pm UTC](https://community.wowza.com/t/abr-vod-streaming-from-live-transcoded-recording/92654/2 "2021-01-08T18:21:27Z")

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It’s critical that all renditions of your video are keyframe aligned and are consistent with the same keyframe interval. We recommend 2 seconds.

Here is a video tutorial on how to set it the SMIL file and some helpful docs. The steps are similar for VOD as for live. Feel free to submit a support ticket if still gives you a problem.

> **[Stream adaptive bitrate content](https://www.wowza.com/docs/how-to-do-adaptive-bitrate-streaming#vod-adaptive-bitrate-streaming)**
>
> Set up adaptive bitrate streaming for live and video-on-demand streams using Wowza Streaming Engine.

[![](https://us1.discourse-cdn.com/flex002/uploads/wowza1/original/1X/10641021d85583bf876222ee297f83b2c7a3a5d1.jpeg "Transcoding Your Adaptive Bitrate Live Stream") ](https://www.youtube.com/watch?v=E4YvKAFbmQc)