# Modify the content of a generated manifest.mpd ?

**URL:** <https://community.wowza.com/t/modify-the-content-of-a-generated-manifest-mpd/49741>\
**Category:** Wowza Streaming Engine\
**Created:** [September 22, 2017, 6:27am UTC](https://community.wowza.com/t/modify-the-content-of-a-generated-manifest-mpd/49741 "2017-09-22T06:27:46Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tom\_Korn](https://avatars.discourse-cdn.com/v4/letter/t/9de0a6/32.png) [@Tom\_Korn](https://community.wowza.com/u/Tom_Korn)\
**Post date:** [September 22, 2017, 6:27am UTC](https://community.wowza.com/t/modify-the-content-of-a-generated-manifest-mpd/49741/1 "2017-09-22T06:27:46Z")

</div>

Hi,

is it possible to edit the generated files of a /playlist.m3u8 and in special of a manifest.mpd file? Are there any API classes which let me configure the content of this files?

Especially manifest.mpd. A client asks me if I can change the pattern of the “filename” in the media attribute of the SegmentTemplate. Is it possible to add or remove $foobar Patterns?

```auto
media="chunk_ctvideo_cfm4s_rid$RepresentationID$_cs$Time$_w439312510_qdGVzdA==_mpd.m4s" 

initialization="chunk_ctvideo_cfm4s_rid$RepresentationID$_cinit_w439312510_qdGVzdA==_mpd.m4s"

```

And is it possible to remove the **UTCTiming** Element? Seems to crash dash.js ([https://github.com/Dash-Industry-Forum/dash.js/wiki](https://github.com/Dash-Industry-Forum/dash.js/wiki))

Thanks a lot,

Tom

---

<div class="post-metadata">

**Author:** ![Matias\_Brunstein\_Mac](https://avatars.discourse-cdn.com/v4/letter/m/9dc877/32.png) [@Matias\_Brunstein\_Mac](https://community.wowza.com/u/Matias_Brunstein_Mac)\
**Post date:** [February 23, 2018, 6:42pm UTC](https://community.wowza.com/t/modify-the-content-of-a-generated-manifest-mpd/49741/2 "2018-02-23T18:42:49Z")

</div>

Hi all.

I’m looking for the same answer. I wish to implement a plugin that modifies the mpd manifest by adding subtitles tracks.

Subtitles in DASH is a missing functionality in Wowza but it can be easily implemented as a plugin/module if there were an API to manipulate MPDs on-the-fly.

Thanks a lot.

---

<div class="post-metadata">

**Author:** ![Marcus\_Forchner](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@Marcus\_Forchner](https://community.wowza.com/u/Marcus_Forchner)\
**Post date:** [September 18, 2018, 4:08pm UTC](https://community.wowza.com/t/modify-the-content-of-a-generated-manifest-mpd/49741/3 "2018-09-18T16:08:57Z")

</div>

Did you find any solution? I’d like to add the property “suggestedPresentationDelay” in manifest files.