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Thread: mediastreamvalidator complaints about sourcestream frame rate

  1. #1
    Join Date
    Nov 2015

    Default mediastreamvalidator complaints about sourcestream frame rate

    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: (-1) Failed to match track frame rate to common frame rates
    --> Framerate: 27.7179

    #EXT-X-ALLOW-CACHE has been deprecated
    --> Line: #EXT-X-ALLOW-CACHE:NO

    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?

    Last edited by jingene; 11-11-2015 at 02:31 AM.

  2. #2


    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.



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