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Thread: resolution and codec metadata to iOS streams

  1. #1

    Default resolution and codec metadata to iOS streams

    Correct me if I am wrong

    Take a look at

    According to

    it will be

    <param name="audioCodecId" value="mp4a.40.2" for audio?
    <param name="videoCodecId" value="avc1.66.12" valuetype="data"/> for video?

    Also what is the 40 in audio?

  2. #2
    Join Date
    Sep 2011


    The number 40 is in relation to the profile of the audio stream.
    You have the number 66 in the video as well, this is the number assigned to Baseline but I'm not sure what 40 relates to.


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