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Thread: playback of multi-bitrate description using amlst

  1. #1
    Join Date
    Nov 2012
    Posts
    13

    Default playback of multi-bitrate description using amlst

    Hi,

    I am using amlst for grouping multibitrate streams for keyframe alignment. Below is the output which i get after grouping multibitrate streams.

    curl http://localhost:1935/[application]/amlst:57501_1146195_e389868e_1_198@5979/playlist.m3u8
    #EXTM3U
    #EXT-X-VERSION:3
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=678000,CODECS="avc1.77.41,mp4a.40.2",RESOLUTION=768x432
    chunklist-b678000.m3u8?wowzasessionid=1622467071
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2320000,CODECS="avc1.77.41,mp4a.40.2",RESOLUTION=1280x720
    chunklist-b2320000.m3u8?wowzasessionid=1622467071
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=198000,CODECS="avc1.66.31,mp4a.40.2",RESOLUTION=480x270
    chunklist-b198000.m3u8?wowzasessionid=1622467071

    the bold part is the id used to group streams. Now when i use this for playback, the stream wont switch quality. How can i generate playable version of m3u8 using this output ? I went through the wowza support docs, but couldn't find anything. Can someone help me with this ?

    Thanks,
    Manohar.

  2. #2

    Default

    Hi, this article should help get you going:

    How to use Java API calls to resolve SMIL file requests (AMLST)

    Salvadore

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