# EXT-X-TARGETDURATION is big on playlist

**URL:** <https://community.wowza.com/t/ext-x-targetduration-is-big-on-playlist/47662>\
**Category:** Wowza Streaming Engine\
**Created:** [November 2, 2016, 3:18pm UTC](https://community.wowza.com/t/ext-x-targetduration-is-big-on-playlist/47662 "2016-11-02T15:18:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![steve\_wau](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@steve\_wau](https://community.wowza.com/u/steve_wau)\
**Post date:** [November 2, 2016, 3:18pm UTC](https://community.wowza.com/t/ext-x-targetduration-is-big-on-playlist/47662/1 "2016-11-02T15:18:42Z")

</div>

We are seeing “weird” large EXT-X-TARGETDURATION value in our transcoder m3u8 list for live stream. About 1 out of 3 m3u8 files, we see very large EXT-X-TARGETDURATION value of 10 seconds. The other times, we see 2 seconds. Why the value is not matching our settings in cupertinoChunkDurationTarget of 1000? and any idea how to set it to be max 1 second as specified in our cupertinoChunkDurationTarget?

We are using wowza 4.4.1

===our config file settings===

cupertinoChunkDurationTarget

1000

Integer

cupertinoMaxChunkCount

5

Integer

cupertinoPlaylistChunkCount

4

Integer

cupertinoRepeaterChunkCount

4

Integer

cupertinoCalculateChunkIDBasedOnTimecode

false

Boolean

cupertinoOnChunkStartResetCounter

false

Boolean

===normal playlist===

#EXTM3U

#EXT-X-VERSION:3

#EXT-X-TARGETDURATION:2

#EXT-X-MEDIA-SEQUENCE:130

#EXTINF:0.916,

media\_w1439163330\_b748000\_130.ts

#EXTINF:1.337,

media\_w1439163330\_b748000\_131.ts

#EXTINF:0.882,

media\_w1439163330\_b748000\_132.ts

#EXTINF:1.072,

media\_w1439163330\_b748000\_133.ts

====Large duration playlist=====

#EXTM3U

#EXT-X-VERSION:3

#EXT-X-TARGETDURATION:10

#EXT-X-MEDIA-SEQUENCE:132

#EXTINF:0.882,

media\_w1439163330\_b748000\_132.ts

#EXTINF:1.072,

media\_w1439163330\_b748000\_133.ts

#EXTINF:1.042,

media\_w1439163330\_b748000\_134.ts

#EXTINF:9.085,

media\_w1439163330\_b748000\_135.ts

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<div class="post-metadata">

**Author:** ![Alex\_C](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@Alex\_C](https://community.wowza.com/u/Alex_C)\
**Post date:** [December 17, 2016, 2:52am UTC](https://community.wowza.com/t/ext-x-targetduration-is-big-on-playlist/47662/2 "2016-12-17T02:52:51Z")

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Hello stevezm,

This issue could be caused by either a fluctuation in the framerate and/or keyframe of your source stream or the keyframe interval is set to something other than 1 second.

The chunk duration should be a multiple of the keyframe interval.

Check out [this article](https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming%28cupertinostreaming%29#livepropref) to get the correct numbers set.

Regards,

Alex