# Support for multiple SPS/PPS in MP4 file streaming containing H264 encoded video

**URL:** <https://community.wowza.com/t/support-for-multiple-sps-pps-in-mp4-file-streaming-containing-h264-encoded-video/40088>\
**Category:** Wowza Streaming Engine\
**Created:** [March 18, 2013, 7:23pm UTC](https://community.wowza.com/t/support-for-multiple-sps-pps-in-mp4-file-streaming-containing-h264-encoded-video/40088 "2013-03-18T19:23:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Hitesh\_Chouhan](https://avatars.discourse-cdn.com/v4/letter/h/a3d4f5/32.png) [@Hitesh\_Chouhan](https://community.wowza.com/u/Hitesh_Chouhan)\
**Post date:** [March 18, 2013, 7:23pm UTC](https://community.wowza.com/t/support-for-multiple-sps-pps-in-mp4-file-streaming-containing-h264-encoded-video/40088/1 "2013-03-18T19:23:52Z")

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Hi,

Seeing corrupt video of mp4 file on flash player streamed via Wowza which has two SPS and PPS units.

I would like to know if Wowza supports multiple SPS/PPS NAL units for streaming H264 video and AAC audio in MP4 container format. My MP4 file has two different SPS/PPS units with sps-id/pps-id 0 and 1 respectively as part of avcC atom. H264 Video profile, level and resolution in these SPS/PPSs are same, and different parts of encoded video point to these.

- Hitesh

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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:** [March 18, 2013, 5:38pm UTC](https://community.wowza.com/t/support-for-multiple-sps-pps-in-mp4-file-streaming-containing-h264-encoded-video/40088/2 "2013-03-18T17:38:17Z")

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Hitesh,

No, sorry, Wowza does not support this.

Richard

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**Author:** ![Jason\_Hilton](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_hilton/32/437_2.png) [@Jason\_Hilton](https://community.wowza.com/u/Jason_Hilton)\
**Post date:** [March 20, 2013, 1:41pm UTC](https://community.wowza.com/t/support-for-multiple-sps-pps-in-mp4-file-streaming-containing-h264-encoded-video/40088/3 "2013-03-20T13:41:08Z")

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Hi

If that’s true then you could force the player to seek to 00:00 when a play request comes in which should solve the problem…

Let us know how you get on if you choose to try it.

Jason

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**Author:** ![Hitesh\_Chouhan](https://avatars.discourse-cdn.com/v4/letter/h/a3d4f5/32.png) [@Hitesh\_Chouhan](https://community.wowza.com/u/Hitesh_Chouhan)\
**Post date:** [March 19, 2013, 2:35pm UTC](https://community.wowza.com/t/support-for-multiple-sps-pps-in-mp4-file-streaming-containing-h264-encoded-video/40088/4 "2013-03-19T14:35:22Z")

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Thanks Richard for your quick response.

What I have observed is if I seek any where on this video then it plays fine both the video parts pointing to different sets of SPS/PPS. Without any seek event video play with artifacts. Does seek provide flash player with some extra information that it starts playing fine after that?