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Thread: Video + Multitrack audio - iPhone- Performance issues

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  1. #1

    Default Video + Multitrack audio - iPhone- Performance issues

    Hello,

    I have a MP4 video file with multiple audio tracks (on per language with 23 in total).
    When called up from an iPhone directly using the http://[server-ip]:1935/vod/mp4:pe-m.../playlist.m3u8 (or by selecting each individual language with the audioindex option) it works fine.

    When i launch the video from a web page using jwplayer, the video is bumby and acts strangely..http://ns207360.ovh.net/jwplayer/pe.html

    When i reload the page, it works fine and i am able to change language using the build-ind menu from the player.

    Any ideas?

    Thank you

  2. #2
    Join Date
    Dec 2007
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    21,962

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    I have seen problems with similar files: multiple video and audio tracks. How was the file encoded, what encoder and settings? Do you have the same problems with files that are encoded similarly but with one video and audio track.

    Richard

  3. #3

    Default

    Using some proprietary solution using MP4 ISMA (with GPAC)...

    Video with one audio only are fine.

  4. #4
    Join Date
    Dec 2007
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    21,962

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    In the similar case we got a sample and it was not playable, not as intended. The encoding solution did not work with Wowza. They may have been using GPAC also. You can send a sample to support@wowza.com. Include a link to this thread for reference. But I'm not sure what can be done in the short-term.

    Richard

  5. #5

    Default

    Ok i've sent the sample.

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