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Thread: How to squeeze more bits from this .m3u8?

  1. #1
    Join Date
    May 2013
    Posts
    6

    Unhappy How to squeeze more bits from this .m3u8?

    I could use a little help determining what I could be doing to better improve the quality of what I'm recording with Wowza and playing back as VOD

    Today we recorded a local sports football game:

    http://199.115.117.10/vod/smil:bishopireton22314_2013-30-08-21-48-47.smil/playlist.m3u8

    #EXTM3U
    #EXT-X-VERSION:3
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=800000
    chunklist_w223013608_b800000.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1386000
    chunklist_w223013608_b1386000.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1800000
    chunklist_w223013608_b1800000.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2400000
    chunklist_w223013608_b2400000.m3u8


    Our hope it to provide playback on SmartTV's, computers, and SmartPhones.

    When playing back the live url it was beautiful. It's not up presently, but when it was live the url was: http://199.115.117.10/live/ngrp:bishopireton23314_all/playlist.m3u8

    It was coming out of the video encoder at 5mbps, and sent to our Wowza server, which saved it on the server as:

    bishopireton22314_160p_2013-30-08-21-48-47.mp4
    bishopireton22314_240p_2013-30-08-21-48-47.mp4
    bishopireton22314_360p_2013-30-08-21-48-47.mp4
    bishopireton22314_720p_2013-30-08-21-48-47.mp4


    However, when I go to play this back on my Mac in Quicktime, or JWPlayer, or on my Roku - - - it doesn't seem to ratchet up to the full 720p resolution. (Does it for you?)
    http://199.115.117.10/vod/smil:bishopireton22314_2013-30-08-21-48-47.smil/playlist.m3u8


    Is there some other setting I need to put in place to help get to the highest bitrate?
    Last edited by gouldtv; 08-30-2013 at 08:37 PM.

  2. #2
    Join Date
    Dec 2007
    Posts
    21,962

    Default

    Switching is controlled by the player. HLS players depend on the system-bitrate value. And it is difficult to monitor switching in HLS clients.

    But you can see client-side switching in this OSMF player using sanjose (HDS) playback:
    http://osmf.org/dev/2.0gm/setup.html

    Here is debug player setup to view your stream:
    http://osmf.org/dev/2.0gm/debug.html...2Fmanifest.f4m

    Richard

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