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Posts Tagged ‘real-player’

Streaming Problems with Realmedia via RTSP from ereserves with VLC Player (and Internet Explorer. And NetOp School)

2011/11/10 Leave a comment
  1. VLC-player
    1. version 1.1.9,  but also currently newest 1.1.11 as well on Windows CXP SP 3
    2. opens from IE8 and Firefox 3.6
    3. but is not able to play files (tested even multi) through. Rather, it nicely falls on its face, with the audio stream simply appearing to stop, mid-sentence, after 2:38 (pretty consistently – a buffering bug? A great way to slip through pre-testing).
    4. In the LRC, I could hardly bring the taskswitcher up, let alone (15 minutes of waiting) the task manager, to even find that vlc.exe is the culprit, with a CPU utilization of 99% solid (Ouch!). ereserves (4)
    5. Not quite so bad in the office computer where it hovered slightly above 25%, maybe busying  only one CPU core. ereserves-crashes-vlcplayer-at238-diana
  2. My Google searches do not find anything quite similar.
  3. RealPlayer 14 to the rescue?
    1. In IE8, RealPlayer does not open when clicking on the web page link with the RM file which causes a dialogue to open if VLC-player is the default player, rather a strange unplayable content error..
    2. realplayer-cannot-open-ram-from-ereserves-in-ie8
    3. In Firefox, RealPlayer open and plays (and pre-buffers) the stream completely.realplayer-cannot-open-ram-from-ereserves-but-from-firefox
    4. Note that ereserves “download as zip” cannot serve as a workaround: gives you only the links like http://dlib4.uncc.edu/streaming/media_play.php?file=9364cb66b9e1cae26aed0f471e9eab5b, which require you to re-authenticate, even if in the same browser session, and do not redirect to the resource, neither audio nor web page form which you could launch the audio (in short, I do not get what this download as zip is good for)
    5. Next Problem: This may work on my office computer. In the lab we have NetOp School installed. That adds another layer of NetOp School problems which look like they can be resolved next time the lab is reimaged. For now, use instead audio from Moodle metacourses where possible. next time I get around to design and run a Symantec-Ghost Software and File Action on the computers (all LRC lab PCs) and test the result (on PC10) which was now.
Categories: audience-is-IT-staff, Glitches&Errors, Listening, LRCRoomCoed434, Media, Presenter-Computer, Student-Computers Tags: , , , , ,

Solved: NetOp School NLSP.dll prevents streaming of Real Media via RTSP on student computers

2011/11/03 Leave a comment
  1. On a NetOp School system, Realplayer 14, when trying to load e.g. rtsp://dlib4.uncc.edu:554/e_reserves/CD4French1-7.rm (from Firefox, or disk, authenticated), crashes nlsp.dll (version 6, part of of NetOp School from Danware). This is the  NetOp Browser Policy IP Filter.
  2. The MS-windows appcompat contains this:

  3. NAME

    RealPlay.exe

    nlsp.dll

    kernel32.dll

    FILTER

    GRABMI_FILTER_PRIVACY

    GRABMI_FILTER_THISFILEONLY

    GRABMI_FILTER_THISFILEONLY

    NAME2

    cddbcontrol.dll

    nlsp.dll

    kernel32.dll

    SIZE

    2041072

    243728

    989696

    CHECKSUM

    0x902F78A2

    0xB9006E28

    0x2D998938

    BIN_FILE_VERSION

    2.6.206.205

    6.20.2010.349

    5.1.2600.5781

    BIN_PRODUCT_VERSION

    2.6.206.205

    6.20.2010.349

    5.1.2600.5781

    PRODUCT_VERSION

    2, 6, 206, 205

    6.20 (2010349)

    5.1.2600.5781

    FILE_DESCRIPTION

    CDDBControl Core Module

    NetOp Browser Policy IP Filter

    Windows NT BASE API Client DLL

    COMPANY_NAME

    Gracenote, Inc.

    Netop Business Solutions A/S

    Microsoft Corporation

    PRODUCT_NAME

    CDDBControl Core Module

    Netop School

    Microsoft® Windows® Operating System

    FILE_VERSION

    2, 6, 206, 205

    6.20 (2010349)

    5.1.2600.5781 (xpsp_sp3_gdr.090321-1317)

    ORIGINAL_FILENAME

    CDDBControl.DLL

    NLSP.DLL

    kernel32

    `

     

     

     

    INTERNAL_NAME

    CDDBControl

    NLSP

    kernel32

    LEGAL_COPYRIGHT

    Copyright 1999 – 2009

    Copyright © 1981-2010 Netop Business Solutions A/S. All Rights Reserved. Portions used under license from third parties.

    © Microsoft Corporation. All rights reserved.

    VERFILEDATEHI

    0x0

    0x0

    0x0

    VERFILEDATELO

    0x0

    0x0

    0x0

    VERFILEOS

    0x4

    0x4

    0x40004

    VERFILETYPE

    0x2

    0x2

    0x2

    MODULE_TYPE

    WIN32

    WIN32

    WIN32

    PE_CHECKSUM

    0x1F6508

    0x4526B

    0xFE572

    LINKER_VERSION

    0x0

    0x0

    0x50001

    UPTO_BIN_FILE_VERSION

    2.6.206.205

    6.20.2010.349

    5.1.2600.5781

    UPTO_BIN_PRODUCT_VERSION

    2.6.206.205

    6.20.2010.349

    5.1.2600.5781

    LINK_DATE

    04/13/2010 19:48:37

    12/15/2010 19:38:53

    03/21/2009 14:06:58

    UPTO_LINK_DATE

    04/13/2010 19:48:37

    12/15/2010 19:38:53

    03/21/2009 14:06:58

    VER_LANGUAGE

    English (United States) [0x409]

    Language Neutral [0x0]

    English (United States) [0x409]

  4. NetOp support advises to try, among other things, resetting the Winsock catalog via    "netsh winsock reset", which seems to work on a testmachine.
Categories: audience-is-IT-staff, documentation, Glitches&Errors, Student-Computers Tags: ,