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Zeromega
Known Participant
October 15, 2011
Question

[error] mod_hlshttp [500]

  • October 15, 2011
  • 2 replies
  • 4749 views

Hi all,

i'm testing HLS on fms4.5 with apache. I set all required files (like Location hls-live correcty into httpd.conf and Event.xml into livepkgr application subfolder), but when i start a single bitrate on flash media encoder, i cannot see any live video on my ipad through the following url: http://serverfms/hls-live/livepkgr/_definst_/liveevent/livestream.m3u8 (sometimes the video starts, but then it breaks after few seconds) and i get the following error on apache log file: [error] mod_hlshttp [500]: Unknown exception when processing /hls-live/streams/livepkgr/events/_definst_/liveevent/livestreamNum157077.ts.

If i try to see the same live video in HDS (http://serverfms/hds-live/livepkgr/_definst_/liveevent/livestream.f4m) i get no errors and i see the video. Also if i try to see any on demand mp4 file by http streaming for iOS through: http://serverfms/hls-vod/sample1_1500kbps.f4v.m3u8 i get no errors and i see the on demand video correctly.

Any advice?

Thanks

    This topic has been closed for replies.

    2 replies

    G
    gonhimepapa
    Participant
    October 18, 2011

    When I install from FMS4, the same phenomenon occurred.

    Uninstall FMS4, and by installing a FMS4.5

    The problem is resolved.

    Z
    ZeromegaAuthor
    Known Participant
    October 18, 2011

    thanks gonhimepapa,

    i did a fresh install of fms 4.5. I did not installed previously any other release so my errors has came on fms 4.5. As i wrote today i didn't experience the problem described above.. i'm currently testing.

    thanks

    N
    Adobe Employee
    NpComplete
    Adobe Employee
    October 19, 2011

    Its great... In case you get some issue in HLS playback.. you may want to check my personal blog at http://knowfms.wordpress.com/2011/09/22/some-basic-step-to-troubleshoot-for-hls-live-streaming/

    Nikhil_Kalyan
    Nikhil_Kalyan
    Participating Frequently
    October 15, 2011

    Hi,

    Thanks for usign HLS and HDS.

    Your encoding settings for the streams might be one of the reasons. What encodings are you using to publish ? MP3 is not supported for iOS. Go for AAC. HDS supports MP3 and hence it might be a smooth playback on it.

    Z
    ZeromegaAuthor
    Known Participant
    October 15, 2011

    Hi,

    thanks for answer. Actually i disabled audio on my flash media encoder becouse i knew about the AAC codec issue, so rtmp/rtmpe goes fine, hds live and on demand goes fine and hls on demand goes fine as well, but on hls live (without audio) i experienced the problems described. Sometimes the video does not start at all (on iPad i have: "video not available"), sometimes the video starts and the it stops after a few seconds (or minutes).

    I used the Adobe suggested configuration on the server, either on httpd.com for location directives either on fms into Event.xml file (i used the per frame configuration into HLS tag).

    Do you think that my problem could be caused by the absence of audio into flme or by some wrong directives into config files?

    Thanks

    Nikhil_Kalyan
    Nikhil_Kalyan
    Participating Frequently
    October 15, 2011

    Thanks for the info.

    As long as you are able to just get the video (even for a sec), it confirms that the configurations are all correct. I am more looking at the video being published and what's causing it to not play the video.

    What video settings did you give in the flash media encoder ? Probably I can try the same settings to see if i can reproduce the problem that you are facing on iOS.

    Video only should not cause any problem.

    One other suggestion is , initially try to use IP address with 8134 port specified in the URL to rule out any unnecessary issues and then slowly move to dns and other URLs. Try changing this as well in you case and see if that helps.

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