The VideoLAN Forums

Posted: **09 Oct 2008 13:57**

Hello

I'm having difficulty playing video using the activex component (v0.9.4) embedded in either a vb6 or .net 2005 app.

I can play the video successfully in the vlc.exe main program, but cannot get it to play in the activex viewer.

I am using an Axis network camera which offers several urls to access the video stream. I have tried some of the available urls - all work in vlc.exe, but none work in the activex component.

Here are the debug logs when trying to play the different streams from the activex component:

Code: Select all

   3      main / libvlc            CPU has capabilities 486 586 MMX MMXEXT SSE SSE2 FPU 
   3      main / libvlc            looking for memcpy module: 3 candidates
   3      main / libvlc            using memcpy module "memcpymmxext"
   3      main / interaction       thread 4920 (Interaction control) created at priority 0 (interface/interaction.c:382)
   3      main / interaction       thread started
   3      main / preparser         waiting for thread initialization
   3      main / preparser         thread started
   3      main / preparser         thread 5112 (preparser) created at priority 0 (playlist/thread.c:79)
   3      main / fetcher           waiting for thread initialization
   3      main / fetcher           thread started
   3      main / fetcher           thread 4980 (fetcher) created at priority 0 (playlist/thread.c:108)
   3      main / playlist          waiting for thread initialization
   3      main / playlist          thread started
   3      main / playlist          rebuilding array of current - root Playlist
   3      main / playlist          rebuild done - 0 items, index -1
   3      main / playlist          thread 4860 (playlist) created at priority 0 (playlist/thread.c:117)
   3      main / interface         looking for interface module: 1 candidate
   3      main / interface         using interface module "hotkeys"
   3      main / interface         thread 868 (interface) created at priority 0 (interface/interface.c:168)
   3      main / interface         thread started
   3      main / playlist          adding item `test' ( http://192.168.11.46/mjpg/video.mjpg )
   3      main / playlist          starting new item
   3      main / playlist          processing request item test node Playlist skip 0
   3      main / playlist          rebuilding array of current - root Playlist
   3      main / playlist          rebuild done - 1 items, index 0
   3      main / playlist          creating new input thread
   3      main / input             Creating an input for 'test'
   3      main / input             waiting for thread initialization
   3      main / input             thread started
   3      main / input             `http://192.168.11.46/mjpg/video.mjpg' gives access `http' demux `' path `192.168.11.46/mjpg/video.mjpg'
   3      main / input             creating demux: access='http' demux='' path='192.168.11.46/mjpg/video.mjpg'
   3      main / demux             looking for access_demux module: 0 candidates
  2       main / demux             no access_demux module matched "http"
   3      main / input             creating access 'http' path='192.168.11.46/mjpg/video.mjpg'
   3      main / access            looking for access module: 1 candidate
 1        main / access            option http-proxy does not exist
   3      main / access            net: connecting to 192.168.11.46 port 80
   3      main / access            connection: Resource temporarily unavailable
   3      main / input             thread 1304 (input) created at priority 1 (input/input.c:370)
   3      main / access            connection succeeded (socket = 5444)
   3      access_mms / access      HTTP reply 'HTTP/1.0 200 OK'
 1        access_mms / access      invalid chunk FATAL (0x2d2d)
   3      access_mms / access      complete header size=0
 1        access_mms / access      header size == 0
  2       main / access            no access module matching "http" could be loaded
   3      main / access            waitpipe: object killed
 1        main / input             open of `http://192.168.11.46/mjpg/video.mjpg' failed: could not create access
   3      main / playlist          finished input
   3      main / playlist          dying input
   3      main / playlist          dying input
   3      main / input             thread ended
   3      main / playlist          dead input
   3      main / input             thread times: real 0m0.203000s, kernel 0m0.015600s, user 0m0.000000s
   3      main / input             thread 1304 joined (playlist/engine.c:244)
   3      main / playlist          starting new item
   3      main / playlist          changing item without a request (current 0/1)
   3      main / playlist          nothing to play

Code: Select all

   3      main / libvlc            CPU has capabilities 486 586 MMX MMXEXT SSE SSE2 FPU 
   3      main / libvlc            looking for memcpy module: 3 candidates
   3      main / libvlc            using memcpy module "memcpymmxext"
   3      main / interaction       thread 4780 (Interaction control) created at priority 0 (interface/interaction.c:382)
   3      main / interaction       thread started
   3      main / preparser         waiting for thread initialization
   3      main / preparser         thread started
   3      main / preparser         thread 4788 (preparser) created at priority 0 (playlist/thread.c:79)
   3      main / fetcher           waiting for thread initialization
   3      main / fetcher           thread started
   3      main / fetcher           thread 5568 (fetcher) created at priority 0 (playlist/thread.c:108)
   3      main / playlist          waiting for thread initialization
   3      main / playlist          thread started
   3      main / playlist          rebuilding array of current - root Playlist
   3      main / playlist          rebuild done - 0 items, index -1
   3      main / playlist          thread 4676 (playlist) created at priority 0 (playlist/thread.c:117)
   3      main / interface         looking for interface module: 1 candidate
   3      main / interface         using interface module "hotkeys"
   3      main / interface         thread 4736 (interface) created at priority 0 (interface/interface.c:168)
   3      main / playlist          adding item `test' ( rtsp://192.168.11.46/mpeg4/media.amp )
   3      main / playlist          starting new item
   3      main / playlist          processing request item test node Playlist skip 0
   3      main / playlist          rebuilding array of current - root Playlist
   3      main / playlist          rebuild done - 1 items, index 0
   3      main / playlist          creating new input thread
   3      main / input             Creating an input for 'test'
   3      main / interface         thread started
   3      main / input             waiting for thread initialization
   3      main / input             thread started
   3      main / input             thread 4820 (input) created at priority 1 (input/input.c:370)
   3      main / input             `rtsp://192.168.11.46/mpeg4/media.amp' gives access `rtsp' demux `' path `192.168.11.46/mpeg4/media.amp'
   3      main / input             creating demux: access='rtsp' demux='' path='192.168.11.46/mpeg4/media.amp'
   3      main / demux             looking for access_demux module: 1 candidate
   3      live555 / demux          RTP subsession 'video/MP4V-ES'
   3      main / input             selecting program id=0
   3      live555 / demux          setup start: 0 stop:0
   3      live555 / demux          We have a timeout of 60 seconds
   3      main / generic           waiting for thread initialization
   3      main / generic           thread started
   3      main / generic           thread 5600 (liveMedia-timeout) created at priority 0 (live555.cpp:1054)
   3      live555 / demux          spawned timeout thread
   3      live555 / demux          play start: 0 stop:0
   3      main / demux             using access_demux module "live555"
   3      main / input             looking for a subtitle file in C:\Program Files\Microsoft Visual Studio\VB98\
   3      main / decoder           looking for decoder module: 31 candidates
   3      kate / decoder           kate: OpenDecoder
 1        main / decoder           no suitable decoder module for fourcc `mp4v'.
VLC probably does not support this sound or video format.
   3      main / decoder           killing decoder fourcc `mp4v', 0 PES in FIFO
   3      main / input             `rtsp://192.168.11.46/mpeg4/media.amp' successfully opened
   3      main / input             control type=1

I have also tried a video file aswell - again this works in vlc.exe but not activex:

Code: Select all

   3      main / libvlc            CPU has capabilities 486 586 MMX MMXEXT SSE SSE2 FPU 
   3      main / libvlc            looking for memcpy module: 3 candidates
   3      main / libvlc            using memcpy module "memcpymmxext"
   3      main / interaction       thread 4904 (Interaction control) created at priority 0 (interface/interaction.c:382)
   3      main / interaction       thread started
   3      main / preparser         waiting for thread initialization
   3      main / preparser         thread started
   3      main / preparser         thread 1332 (preparser) created at priority 0 (playlist/thread.c:79)
   3      main / fetcher           waiting for thread initialization
   3      main / fetcher           thread started
   3      main / fetcher           thread 4636 (fetcher) created at priority 0 (playlist/thread.c:108)
   3      main / playlist          waiting for thread initialization
   3      main / playlist          thread started
   3      main / playlist          thread 5460 (playlist) created at priority 0 (playlist/thread.c:117)
   3      main / interface         looking for interface module: 1 candidate
   3      main / interface         using interface module "hotkeys"
   3      main / playlist          rebuilding array of current - root Playlist
   3      main / playlist          rebuild done - 0 items, index -1
   3      main / interface         thread 5368 (interface) created at priority 0 (interface/interface.c:168)
   3      main / interface         thread started
   3      main / playlist          adding item `test' ( http://code.revolunet.com/VLCcontrols/bunny.mp4 )
   3      main / playlist          starting new item
   3      main / playlist          processing request item test node Playlist skip 0
   3      main / playlist          rebuilding array of current - root Playlist
   3      main / playlist          rebuild done - 1 items, index 0
   3      main / playlist          creating new input thread
   3      main / input             Creating an input for 'test'
   3      main / input             waiting for thread initialization
   3      main / input             thread started
   3      main / input             thread 5180 (input) created at priority 1 (input/input.c:370)
   3      main / input             `http://code.revolunet.com/VLCcontrols/bunny.mp4' gives access `http' demux `' path `code.revolunet.com/VLCcontrols/bunny.mp4'
   3      main / input             creating demux: access='http' demux='' path='code.revolunet.com/VLCcontrols/bunny.mp4'
   3      main / demux             looking for access_demux module: 0 candidates
  2       main / demux             no access_demux module matched "http"
   3      main / input             creating access 'http' path='code.revolunet.com/VLCcontrols/bunny.mp4'
   3      main / access            looking for access module: 1 candidate
 1        main / access            option http-proxy does not exist
   3      main / access            net: connecting to code.revolunet.com port 80
   3      main / access            connection: Resource temporarily unavailable
   3      main / access            connection succeeded (socket = 4772)
   3      access_mms / access      HTTP reply 'HTTP/1.1 200 OK'
 1        access_mms / access      invalid chunk FATAL (0x0)
   3      access_mms / access      complete header size=0
 1        access_mms / access      header size == 0
  2       main / access            no access module matching "http" could be loaded
   3      main / access            waitpipe: object killed
 1        main / input             open of `http://code.revolunet.com/VLCcontrols/bunny.mp4' failed: could not create access
   3      main / playlist          finished input
   3      main / playlist          dying input
   3      main / playlist          dying input
   3      main / playlist          dying input
   3      main / input             thread ended
   3      main / playlist          dead input
   3      main / input             thread times: real 0m0.252000s, kernel 0m0.015600s, user 0m0.015600s
   3      main / input             thread 5180 joined (playlist/engine.c:244)
   3      main / playlist          starting new item
   3      main / playlist          changing item without a request (current 0/1)
   3      main / playlist          nothing to play

My code is very simple:

Code: Select all

Private Sub Form_Load()
    Dim lngItem As Long
    
    Me.VLCPluginV2.Log.verbosity = 3
    
    lngItem = Me.VLCPluginV2.playlist.Add("http://code.revolunet.com/VLCcontrols/bunny.mp4", "test")
    Me.VLCPluginV2.playlist.playItem lngItem
End Sub

Can anyone help me with this?

Are there any in depth examples of how to use the activex component? The info on the wiki is very minimal.

Many thanks

Paul

Posted: **30 Oct 2008 07:47**

I faced this issue in Vista. I'm sure it would have reproduced in any windows version. The problem was that the ActiveX control was trying to load plugin DLLs from C:\Program Files\VideoLAN\VLC\plugins folder. Those DLLs were inturn dependent on certain DLLs in C:\Program Files\VideoLAN\VLC folder. Since the C:\Program Files\VideoLAN\VLC folder was not in path, IE was not able to resolve those DLLs and hence the plugin DLL load failed. I added the C:\Program Files\VideoLAN\VLC folder to PATH (environment variable) after which the plugin DLLs loaded properly and video started showing up.

I would call this a bug in VLC ActiveX. These dependencies should have been taken care of during the installation but unfortunately not so.

Posted: **30 Oct 2008 08:53**

I faced this issue in Vista. I'm sure it would have reproduced in any windows version. The problem was that the ActiveX control was trying to load plugin DLLs from C:\Program Files\VideoLAN\VLC\plugins folder. Those DLLs were inturn dependent on certain DLLs in C:\Program Files\VideoLAN\VLC folder. Since the C:\Program Files\VideoLAN\VLC folder was not in path, IE was not able to resolve those DLLs and hence the plugin DLL load failed. I added the C:\Program Files\VideoLAN\VLC folder to PATH (environment variable) after which the plugin DLLs loaded properly and video started showing up.

I would call this a bug in VLC ActiveX. These dependencies should have been taken care of during the installation but unfortunately not so.

facing the same prob with 0.9.4 within the browser plugin i only get audio no video via RTSP i thought it was something to do with avi files but apparently its not the case. would you know of any 0.9 builds that may not have this problem? because i really like 0.9's pause and resume capabilities as compared to 0.8.6(good with seeking forward and back not pause and resume) when it comes to VOD

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Help with video playback using activex

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