# mediastreamvalidator complaints about sourcestream frame rate

**URL:** <https://community.wowza.com/t/mediastreamvalidator-complaints-about-sourcestream-frame-rate/46171>\
**Category:** Wowza Streaming Engine\
**Created:** [November 11, 2015, 1:21am UTC](https://community.wowza.com/t/mediastreamvalidator-complaints-about-sourcestream-frame-rate/46171 "2015-11-11T01:21:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jin\_gene](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@Jin\_gene](https://community.wowza.com/u/Jin_gene)\
**Post date:** [November 11, 2015, 1:21am UTC](https://community.wowza.com/t/mediastreamvalidator-complaints-about-sourcestream-frame-rate/46171/1 "2015-11-11T01:21:34Z")

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Hi, I’m testing Wowza 4.3.0 for live streaming service.

To prepare for Apple review, I’ve checked my HLS playback stream by Apple Media Tool(mediastreamvalidator), and got the result as follows.

ERROR\>

ERROR: (-1) Failed to match track frame rate to common frame rates

–\> Framerate: 27.7179

WARNINGS\>

WARN

#EXT-X-ALLOW-CACHE has been deprecated

–\> Line: #EXT-X-ALLOW-CACHE:NO

WARN

extra characters at end of line

–\> Line: #EXT-X-ALLOW-CACHE:NO

My environment details:

- Broadcasting client: OBS(Open Broadcaster Software) 0.11.1 by default settings (H.264/AAC)

- source frame rate : 29.97

- Wowza Input protocol: RTMP

- Wowza Output protocol: HLS

- Wowza Transcode options

- Video: H.264/800000 bps/default encoding impl./Baseline profile/30, 60 or 90 key frame interval

- Frame: letterbox/1280x720/no crop

- Audio: AAC/64000 bps

- No overlay image

- HLS options (cupertino streaming packetizer)

- cupertinoBitrateAdjustmentFactor: 110

- cupertinoCalculateCodecs : false

- cupertinoPacketizeAllStreamsAsTS : true

- httpOriginMode : on

- Apple Media Tool

- mediastreamvalidator: Beta Version 1.1(150923)

As I know, ERROR must fix before IOS provisioning.

How can I solve this errors?

Regards,

Jingene

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<div class="post-metadata">

**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\
**Post date:** [November 16, 2015, 9:01am UTC](https://community.wowza.com/t/mediastreamvalidator-complaints-about-sourcestream-frame-rate/46171/2 "2015-11-16T09:01:16Z")

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Hello there.

Make sure you are testing a rendition from the Transcoder and not the source stream itself. And you might try setting template /KeyFrameInterval /FollowSource to “false”, so the /Interval setting (default is 60) is used.

Regards,

Salvadore