UDP vidieo streaming does not work for some PCs

[mcjbrown]

Has anybody had a similar problem or can advise how best to troubleshoot my streaming problem.

I our office we have about 100 PCs all of which can access TV channels via VOD using UDP. Each has VLP player installed and the users change channels by running VB scripts from the company Intranet. This works for 99% of PC. However on some machines it doesn’t work. Where the video should be displaying I get the VLC traffic cone symbol but no other error.

[Rémi Denis-Courmont]

Without logs, not much to say. Most probably VLC is not receiving any data from the network.

[mcjbrown]

How can I view the logs?

[Jean-Baptiste Kempf]

To help you, we need messages, to completely understand what your problems is.
To fix this, please be sure before you start the playback to:

1. Open: Tools -> Messages.
2. Set Verbosity to 2
3. Start playback to reproduce your issue
4. Save text in a file or copy into clipboard
5. Then paste the full resulting log here between [​code]and[​/code] (or use Pastebin.com if it's too long)

Also don't forget to name your Operating System and provide the VLC media player version.

[mcjbrown]

Please see the messages informatin below

VLC media player 2.0.4 Twoflower

Windows 7 Pro 64 bit

log out put

++++++++++++++++++++++++++++++

main debug: adding item `udp://239.192.0.2:5000' ( udp://@239.192.0.2:5000 )
main debug: waitpipe: object killed
main debug: socket 1264 polling interrupted
main debug: prebuffering done 0 bytes in 71s - 0 KiB/s
main error: cannot pre fill buffer
main warning: cannot create a stream_t from access
main debug: removing module "access_udp"
qt4 debug: Adding a new MRL to recent ones: udp://@239.192.0.2:5000
main debug: dead input
main debug: processing request item: udp://239.192.0.2:5000, node: null, skip: 0
main debug: rebuilding array of current - root Playlist
main debug: rebuild done - 3 items, index 2
main debug: starting playback of the new playlist item
main debug: resyncing on udp://239.192.0.2:5000
main debug: udp://239.192.0.2:5000 is at 2
main debug: creating new input thread
main debug: Creating an input for 'udp://239.192.0.2:5000'
main debug: meta ok for (null), need to fetch art
main debug: looking for meta fetcher module: 1 candidate
lua debug: Trying Lua scripts in C:\Users\Administrator\AppData\Roaming\vlc\lua\meta\fetcher
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher\tvrage.luac
main debug: using meta fetcher module "lua"
main debug: TIMER module_need() : 2.274 ms - Total 2.274 ms / 1 intvls (Avg 2.274 ms)
main debug: removing module "lua"
main debug: searching art for udp://239.192.0.2:5000
main debug: looking for art finder module: 2 candidates
lua debug: Trying Lua scripts in C:\Users\Administrator\AppData\Roaming\vlc\lua\meta\art
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
main debug: using timeshift granularity of 50 MiB, in path 'C:\Users\ADMINI~1\AppData\Local\Temp'
main debug: `udp://@239.192.0.2:5000' gives access `udp' demux `' path `@239.192.0.2:5000'
main debug: creating demux: access='udp' demux='' location='@239.192.0.2:5000' file='\\@239.192.0.2:5000'
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
main debug: looking for access_demux module: 0 candidates
main debug: no access_demux module matched "udp"
main debug: TIMER module_need() : 0.184 ms - Total 0.184 ms / 1 intvls (Avg 0.184 ms)
main debug: creating access 'udp' location='@239.192.0.2:5000', path='\\@239.192.0.2:5000'
main debug: looking for access module: 1 candidate
access_udp debug: opening server=:0 local=239.192.0.2:5000
main debug: net: opening 239.192.0.2 datagram port 5000
main debug: using access module "access_udp"
main debug: TIMER module_need() : 0.600 ms - Total 0.600 ms / 1 intvls (Avg 0.600 ms)
main debug: Using block method for AStream*
main debug: starting pre-buffering
main debug: no art finder module matching "any" could be loaded
main debug: TIMER module_need() : 6.000 ms - Total 6.000 ms / 1 intvls (Avg 6.000 ms)
main debug: art not found for udp://239.192.0.2:5000
qt4 debug: IM: Deleting the input
main debug: TIMER input launching for 'udp://239.192.0.2:5000' : 71164.745 ms - Total 71164.745 ms / 1 intvls (Avg 71164.742 ms)
qt4 debug: IM: Setting an input



+++++++++++++++++++++++++++++++++++++

[ibizageeza]

Hi There, can anyone help on this... we are getting the same problem. Wondered if this was ever resolved?

As far as I can tell this is NOT a firewall or routing problem.

I have a similar machine build on the same VLAN, same network, same firewall and they can connect just fine.

Not sure why some work and some do not?

Any help much appreciated

[ibizageeza]

OK OK more persistence and I have resolved this problem, it does seem to be a routing issue however with a few interesting points:

Laptop automatically connected to wireless network on startup, although corporate there was probabaly no routing to support the connection

Noticed this early on so decided to switch VLAN and route over internal ethernet port - no luck - why not?

If you launch VLC and it trys to onnect I believe looking at the loges it disables something > removing module "access_udp"

You need to quit and relaunch for this to reinstate itself, better still reboot to be sure

So the fix > Ensure you are are on the right VLAN for your UDP session > disable your wireless connection > Reboot > Dont forget the @ > Have fun streaming

I have just noticed even if you have wireless enabled and not active it still may not connect - make sure wireless is disabled completely