Live TV freezes intermittently on Beta1 & SVNs (1 Viewer)


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  • November 8, 2007
    Canada Canada
    MediaPortal Version: 1.1 Beta SVN 23684
    MediaPortal Skin: Blue3 Wide
    Windows Version: Windows Vista SP1
    CPU Type: Intel Q8200
    HDD: 120G
    Memory: 2G
    Motherboard: Gigabyte EP45-UD3R
    Video Card: Radeon 3450
    Video Card Driver: 8.12
    Sound Card: Integrated
    Sound Card AC3: Optical
    Sound Card Driver:
    1. TV Card: digiwave 103g
    1. TV Card Type: DVB-S
    1. TV Card Driver:
    2. TV Card: Hauppauge HVR-2250
    2. TV Card Type: dual-ATSC/Analogue
    2. TV Card Driver:
    3. TV Card: Hauppauge HVR-2250
    3. TV Card Type: dual-ATSC/Analogue
    3. TV Card Driver:
    4. TV Card:
    4. TV Card Type:
    4. TV Card Driver:
    MPEG2 Video Codec: MS
    MPEG2 Audio Codec: MPA
    h.264 Video Codec: FFDShow
    Satelite/CableTV Provider:
    HTPC Case: Antec
    Cooling: Stock
    Power Supply: Antec 500W
    Remote: MCE
    TV: Samsung 56
    TV - HTPC Connection: HDMI

    Sometimes a channel will suddenly freeze while watching live TV. Using a skip back will resume play, & will play properly through the spot where playback stopped. This seems to imply that the timeshifting at the server end is uninterrupted, & the lockups are client side.

    I tried running the client in windowed mode, & kept relaunching the client, picking the same channel each time. I cleared all client logs before each relaunch. It finally exhibited the problem, & logs are attached. MP was manually closed down (clicking the X in the top right) right after the TV froze, without attempting to restart it.


    MP Donator
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  • October 3, 2007
    Denmark Denmark
    MediaPortal Version: 1.1 Beta SVN 23684
    MediaPortal Skin: Blue3 Wide
    Windows Version: Win7 X64
    CPU Type: Intel AMD4850e
    HDD: 1Tb wd1000fyps (WesternDigital)
    Memory: 8Gb
    Motherboard: Gigabyte MA79GD4H
    Video Card: Gigabyte HD4850 Passive
    Video Card Driver: AMD Catalyst 9.9
    Sound Card: Integrated
    Sound Card AC3: Optical
    1. TV Card: FloppyDTV
    1. TV Card Type: DVB-S2
    1. TV Card Driver: 5.6 (Beta)
    1. TV Card Firmware: 1.5.2 - B30740
    2. TV Card: FloppyDTV
    2. TV Card Type: DVB-S2
    2. TV Card Driver: 5.6 (Beta)
    2. TV Card Firmware: 1.5.2 - B30740
    MPEG2 Video Codec: Cyberlink SP/Video Decoder (PDVD9)
    H.264 Video Codec: Cyberlink H.264/AVC Decoder (PDVD9)
    MPEG2 Audio Codec: MPA
    HTPC Case: Origenae S21T
    Cooling: Ninja Synth
    Power Supply: Silverstone Nightjar ST45NF: 450W Fanless Power Supply
    Remote: MCE
    TV: Pionner 43
    TV - HTPC Connection: HDMI


    As I wrote earlyer in the SVN forum,
    I have same expience as x4mer.
    Logs postet in the svn forum.

    I have also made a test where I stream to VLC, this is running without any problems at all.
    Therefor my conclusion also is, the bug is on client side.

    If it can be any help, then a develuper can get remote access to my HTPC,
    Just send a PM.



    Community Skin Designer
  • Premium Supporter
  • April 2, 2008
    Denmark Denmark
    Does both of you experience this when the client and the server is on the same machine? Because I have my laptop running as second client, and I have only seen this happen on my dedicated HTPC. But there I get the problem every second day if I let the HTPC run all night with TV on. Then, when I wake up, sometimes the TV is frozen.

    My guess would be that only non-RTSP streaming is affected...
    Just speculating about possible setups :)


  • Team MediaPortal
  • August 31, 2004
    Germany Germany
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    we know about an issue in multiseat, the internal live555-timeout (45 seconds) kicks in at serverside and ends the stream (=client freeze). The problem atm is to find the reason why the keep-alive isnt renewed sometimes on a new stream.


    MP Donator
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  • May 14, 2008
    Germany Germany
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    same problem here - logs already posted in two SVN threads. I also use ONLY multiseat - no singleseat machine to test.

    is there already some debugging code or so available to test this or produce more verbose logs?


    MP Donator
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  • November 8, 2007
    Canada Canada
    I don't use the client component on the server, so problems have only been seen multi-seat.

    Tonight, I enabled rtsp=no, on the client upstairs. This seemed to have gotten rid of the freezing, but now instead of freezing the feed starts stuttering after watching for a short time. There's no way for me to determine if the start of the stuttering would have coincided with a freeze had rtsp been still set to yes.

    Attached are client logs with rtsp=no set.


    I take it when the 45sec timeout occurs, only the stream is stopped, but the timeshift continues?

    I assume it must, as a skip -15sec, continues right through the freeze point on second pass.

    EDIT: Actually, even if only the stream goes down server side, It shouldn't be able to resume seamlessly client side by just skip -15sec. The client would only have access to what was in the client buffer at the time the stream went down.


    Retired Team Member
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  • January 7, 2005
    Please post the logs in this thread as well so there wont be any need for additional searching.


    MP Donator
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  • December 19, 2007
    Czech Republic Czech Republic
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    the same behavior happens to me too, but I am using MP 1.02 singleseat, so it seems to me the problem is not related only to MP 1.1 Beta.
    In fact there are several "subproblems" with live TV by my system:
    1) live TV freezes randomly (mpeg-2 streams very rarely, mpeg-4 streams nearly allways), only switching TV off and on again helps (it is very annoying, because timeshift is lost and according Marty's law it usually happens when my wife wants to watch some interesting show and TV was paused before ;-) )
    2) live TV starts to stutter, skipping within stream helps for some time (mpeg-4 streams allways, using Power DVD 9 h264 codec. Core AVC 1.9.5 codec eliminates the problem).
    I am not sure, but it seems to me the problems happen only, when watching DVB-T streams (I can't confirm it for 100%, because I am watching DVB-S streams seldom and my satelite card is able to receive only one mpeg-4 DVB-S stream - Einsfestival HD).
    I posted logs to other threads already, but if required I can collect new and post it here too...


    MP Donator
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  • May 14, 2008
    Germany Germany
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    this sounds completely different to the problem we discuss here.
    1.) freezing cann always be solved by changing channel or do a -15s skip backwards
    2.) happens only since MP 1.1 beta

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