Two webcams with the same name

[soisses]

Hello,

I tried to stream two webcams of the same type. VLC names the first webcam with "Philips SPC1330NC Webcam", the second "Philips SPC1330NC Webcam #1". If I use the GUI, there ist no problem. If I use a VLM file to control the webcams, I'cant use the second webcam. Here is my VLM file for the second webcam (this time I do not stream but only display it):

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# Input options new stream1 broadcast enabled setup stream1 input "dshow://" setup stream1 option dshow-vdev="Philips SPC1330NC Webcam #1" setup stream1 option dshow-adev= setup stream1 option dshow-caching=150 setup stream1 option dshow-fps=25 setup stream1 option file-caching=0 setup stream1 output #transcode{vcodec=mp4v,vb=1800,fps=25,scale=1.0,acodec=mpga,ab=64,channels=1,samplerate=44100}:display control stream1 play

VLC gives this error message:

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Capture failed: VLC cannot use the device "Philips SPC1330NC Webcam #1"", because its type is not supported.

I think that there is a problem with the second quotation mark in the error message, and because of this, vlc can't open the capture device.

Is there any solution for it?

Thanks in advance

Manfred

[VLC_help]

Could you give us more messages? (ones from message log)

[soisses]

I think that this is the relevant part of the messages log (verbosity level 2):

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main debug: using access module "access_file" main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms) main debug: Using AStream*Stream main debug: pre buffering main debug: received first data after 0 ms main debug: pre-buffering done 438 bytes in 0s - 427734 kbytes/s main debug: removing module "access_file" main debug: Creating an input for 'dshow://' main debug: thread (input) created at priority 1 (../.././src/input/input.c:230) main debug: thread started main debug: stream=`transcode' main debug: looking for sout stream module: 1 candidate main debug: stream=`display' main debug: looking for sout stream module: 1 candidate main debug: using sout stream module "stream_out_display" main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms) main debug: set config option: sout-transcode-vcodec to mp4v main debug: set config option: sout-transcode-vb to 1800 main debug: set config option: sout-transcode-fps to 25 main debug: set config option: sout-transcode-scale to 1.0 main debug: set config option: sout-transcode-acodec to mpga main debug: set config option: sout-transcode-ab to 64 main debug: set config option: sout-transcode-channels to 1 main debug: set config option: sout-transcode-samplerate to 44100 stream_out_transcode debug: codec audio=mpga 44100Hz 1 channels 64Kb/s stream_out_transcode debug: codec video=mp4v 0x0 scaling: 1.000000 1800kb/s main debug: using sout stream module "stream_out_transcode" main debug: TIMER module_need() : 10.000 ms - Total 10.000 ms / 1 intvls (Avg 10.000 ms) main debug: using timeshift granularity of 50 MBytes main debug: using timeshift path 'C:\Users\manfred\AppData\Local\Temp' main debug: `dshow://' gives access `dshow' demux `' path `' main debug: creating demux: access='dshow' demux='' path='' main debug: looking for access_demux module: 1 candidate dshow debug: dshow-vdev: Philips SPC1330NC Webcam #1" dshow debug: dshow-adev: dshow debug: found device: Integrated Camera dshow debug: found device: MediaLooks Screen Capture dshow debug: found device: Philips SPC1330NC Webcam dshow debug: found device: Philips SPC1330NC Webcam #1 dshow debug: asking for device: Philips SPC1330NC Webcam #1" dshow error: can't use device: Philips SPC1330NC Webcam #1", unsupported device type dshow error: can't open video device dshow debug: found device: Mikrofon (High Definition Audio dshow debug: asking for default device: Mikrofon (High Definition Audio dshow debug: asked for Mikrofon (High Definition Audio, binding to Mikrofon (High Definition Audio dshow debug: using device: Mikrofon (High Definition Audio

[VLC_help]

What does it report if you open it via GUI?

[soisses]

ok, this is the message log if i use the gui (which is working properly)

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main debug: processing request item Streaming node Wiedergabeliste skip 0 main debug: resyncing on Streaming main debug: Streaming is at 1 main debug: starting new item main debug: creating new input thread main debug: Creating an input for 'Streaming' main debug: thread (input) created at priority 1 (../.././src/input/input.c:230) qt4 debug: IM: Setting an input main debug: thread started main debug: stream=`transcode' main debug: looking for sout stream module: 1 candidate main debug: stream=`display' main debug: looking for sout stream module: 1 candidate main debug: using sout stream module "stream_out_display" main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms) qt4 debug: Updating the geometry qt4 debug: Updating the geometry main debug: set config option: sout-transcode-vcodec to mp4v main debug: set config option: sout-transcode-vb to 1800 main debug: set config option: sout-transcode-fps to 25 main debug: set config option: sout-transcode-scale to 1 main debug: set config option: sout-transcode-acodec to none stream_out_transcode debug: codec audio=none 0Hz 0 channels 0Kb/s stream_out_transcode debug: codec video=mp4v 0x0 scaling: 1.000000 1800kb/s main debug: using sout stream module "stream_out_transcode" main debug: TIMER module_need() : 10.000 ms - Total 10.000 ms / 1 intvls (Avg 10.000 ms) main debug: using timeshift granularity of 50 MBytes main debug: using timeshift path 'C:\Users\manfred\AppData\Local\Temp' main debug: `dshow://' gives access `dshow' demux `' path `' main debug: creating demux: access='dshow' demux='' path='' main debug: looking for access_demux module: 1 candidate dshow debug: dshow-vdev: Philips SPC1330NC Webcam #1 dshow debug: dshow-adev: :dshow-caching=200 dshow debug: found device: Integrated Camera dshow debug: found device: MediaLooks Screen Capture dshow debug: found device: Philips SPC1330NC Webcam dshow debug: found device: Philips SPC1330NC Webcam #1 dshow debug: asking for device: Philips SPC1330NC Webcam #1 dshow debug: asked for Philips SPC1330NC Webcam #1, binding to Philips SPC1330NC Webcam #1 dshow debug: using device: Philips SPC1330NC Webcam #1 dshow debug: EnumDeviceCaps: output pin: Capture dshow debug: EnumDeviceCaps: output pin: Standbild dshow debug: EnumDeviceCaps: trying pin Capture qt4 debug: New caching: 0 qt4 debug: New caching: 0 dshow debug: EnumDeviceCaps: input pin default format configured dshow debug: EnumDeviceCaps: input pin accepts chroma: I420, width:640, height:480, fps:25.000000 dshow debug: CaptureFilter::JoinFilterGraph dshow debug: connecting filters

[VLC_help]

dshow debug: asking for device: Philips SPC1330NC Webcam #1"
dshow error: can't use device: Philips SPC1330NC Webcam #1", unsupported device type

dshow debug: asking for device: Philips SPC1330NC Webcam #1
dshow debug: asked for Philips SPC1330NC Webcam #1, binding to Philips SPC1330NC Webcam #1

Yep, it seems that " is causing issue. Does setup stream1 option dshow-vdev=Philips SPC1330NC Webcam #1 work any better?

[soisses]

no, it doesn't work better. the vlm file needs the quotations marks. error message is "wrong command syntax" - see below

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´main debug: creating VLM main debug: creating access '' path='C:\Users\manfred\Documents\videolanconf\vlc_player2.vlm' main debug: looking for access module: 5 candidates vcd debug: trying .cue file: C:\Users\manfred\Documents\videolanconf\vlc_player2.cue vcd debug: could not find .cue file access_file debug: opening file `C:\Users\manfred\Documents\videolanconf\vlc_player2.vlm' main debug: using access module "access_file" main debug: TIMER module_need() : 30.000 ms - Total 30.000 ms / 1 intvls (Avg 30.000 ms) main debug: Using AStream*Stream main debug: pre buffering main debug: received first data after 0 ms main debug: pre-buffering done 442 bytes in 0s - 431640 kbytes/s main debug: removing module "access_file" main error: Load error on line 5: setup: Wrong command syntax qt4 warning: Failed to import vlm configuration file : load "C:\Users\manfred\Documents\videolanconf\vlc_player2.vlm"

[VLC_help]

Could you try with VLC 1.1.0 nightly builds? If the same thing happens, I will open trac ticket for this.

[soisses]

It also happens with vlc nightly builds. You can try it yourself if you use the VLM file above - it doesn't matter if the webcam is connected or not. When you use a vdev name with # sign in it the error occurs - vlc adds always a quote sign.

[soisses]

the problem perists with vlc 1.0.3.

is there any solution for this?

[VLC_help]

Sorry, it seems I missed your reply to this thread. No solutions yet AFAIK. I opened ticket for this
trac.videolan.org/vlc/ticket/3154

[jesus_]

Just wanted to report that I can confirm this bug. You cannot use a # in VLM, and that is exactly what you need when you have 2 identical devices in dshow.