Streaming my webcam

[lagarazo]

I am trying to stream my webcam output to another computer, but nothing is in the network.

I have WindowsXP in both computers. It works fine when I stream a video file, and I can see my webcam in the local computer.

But it does not work when I try to stream my webcam output to another computer. I have tried with the GUI, and with the command line:

vlc.exe -vvv -I rc --ttl 12 dshow:// vdev="VGA USB Camera" adev="USB Camera" size="300x200" --sout=#std{mux=ts,access=udp,dst=192.168.1.1}

No UDP packet is in the network in both cases. When I try from the console , the output is:


[00000288] rc interface: VLC media player - version 0.8.5 Janus - (c) 1996-2006
the VideoLAN team
[00000288] rc interface:
Warning: if you can't access the GUI anymore, open a command-line window, go to
the directory where you installed VLC and run "vlc -I wx"

Remote control interface initialized. Type `help' for help.
[00000288] main interface debug: using interface module "rc"
[00000288] main interface debug: thread 3728 (manager) created at priority 0 (in
terface/interface.c:216)
[00000284] main playlist debug: creating new input thread
[00000290] main input debug: waiting for thread completion
[00000290] main input debug: creating statistics handler
[00000290] main input debug: thread 3760 (input) created at priority 1 (input/in
put.c:261)
[00000292] main stream output debug: stream=`std'
[00000293] main private debug: looking for sout stream module: 1 candidate
[00000293] main private debug: set sout option: sout-standard-mux to ts
[00000293] main private debug: set sout option: sout-standard-access to udp
[00000293] main private debug: set sout option: sout-standard-dst to 193.147.53.
32
[00000293] stream_out_standard private debug: creating `udp/ts://193.147.53.32'
[00000293] stream_out_standard private debug: extension is 32
[00000293] stream_out_standard private debug: extension -> mux=(null)
[00000293] stream_out_standard private debug: using `udp/ts://193.147.53.32'
[00000295] main private debug: looking for sout access module: 1 candidate
[00000295] main private debug: net: connecting to 193.147.53.32 port 1234
[00000297] main private debug: thread 3904 (sout write thread) created at priori
ty 15 (udp.c:268)
[00000295] access_output_udp private debug: udp access output opened(193.147.53.
32:1234)
[00000295] main private debug: using sout access module "access_output_udp"
[00000293] stream_out_standard private debug: access opened
[00000298] main private debug: looking for sout mux module: 1 candidate
[00000298] mux_ts private debug: shaping=200000 pcr=70000 dts_delay=400000
[00000298] main private debug: using sout mux module "mux_ts"
[00000292] main stream output debug: muxer support adding stream at any time
[00000293] stream_out_standard private debug: mux opened
[00000293] main private debug: using sout stream module "stream_out_standard"
[00000290] main input debug: `dshow://' gives access `dshow' demux `' path `'
[00000290] main input debug: creating demux: access='dshow' demux='' path=''
[00000299] main demuxer debug: looking for access_demux module: 1 candidate
[00000299] dshow demuxer debug: found device: Logitech QuickCam Pro 4000
[00000299] dshow demuxer debug: using device: Logitech QuickCam Pro 4000
[00000299] dshow demuxer debug: EnumDeviceCaps: output pin: Capturar
[00000299] dshow demuxer debug: EnumDeviceCaps: output pin: Est?tico
[00000299] dshow demuxer debug: EnumDeviceCaps: trying pin Capturar
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin default format configu
red
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts chroma: I420,
width:160, height:120, fps:30.000030
[00000299] dshow demuxer debug: CaptureFilter::JoinFilterGraph
[00000299] dshow demuxer debug: connecting filters
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::ConnectedTo [not connected]
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryPinInfo
[00000299] dshow demuxer debug: CapturePin::ConnectedTo [not connected]
[00000299] dshow demuxer debug: CapturePin::QueryPinInfo
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryAccept [OK] (width=160, height=
120, chroma=I420)
[00000299] dshow demuxer debug: CapturePin::ReceiveConnection [OK]
[00000299] dshow demuxer debug: CapturePin::Disconnect [OK]
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryAccept [OK] (width=160, height=
120, chroma=I420)
[00000299] dshow demuxer debug: CapturePin::ReceiveConnection [OK]
[00000299] dshow demuxer debug: CapturePin::Disconnect [OK]
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::ConnectedTo [not connected]
[00000299] dshow demuxer debug: CaptureFilter::SetSyncSource
[00000299] dshow demuxer debug: CaptureFilter::JoinFilterGraph
[00000299] dshow demuxer debug: CaptureFilter::GetState 0
[00000299] dshow demuxer debug: CaptureFilter::~CaptureFilter
[00000299] dshow demuxer debug: CapturePin::~CapturePin
[00000299] dshow demuxer error: can't open video
[00000299] dshow demuxer debug: found device: Logitech Microphone (Pro 4000)
[00000299] dshow demuxer debug: found device: SoundMAX Digital Audio
[00000299] dshow demuxer debug: using device: Logitech Microphone (Pro 4000)
[00000299] dshow demuxer debug: EnumDeviceCaps: output pin: Capture
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin: Micr?fono
[00000299] dshow demuxer debug: EnumDeviceCaps: trying pin Capture
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin default format configu
red
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:44100 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:44100 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:44100 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:32000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:32000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:22050 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:22050 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:11025 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:11025 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:8000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:8000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:44100 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:44100 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:22050 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:22050 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:11025 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:11025 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:8000 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:8000 bits/sample:8
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:48000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:48000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:2, samples/sec:96000 bits/sample:16
[00000299] dshow demuxer debug: EnumDeviceCaps: input pin accepts format: araw,
channels:1, samples/sec:96000 bits/sample:16
[00000299] dshow demuxer debug: CaptureFilter::JoinFilterGraph
[00000299] dshow demuxer debug: connecting filters
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::ConnectedTo [not connected]
[00000299] dshow demuxer debug: CapturePin::QueryPinInfo
[00000299] dshow demuxer debug: CaptureFilter::QueryFilterInfo
[00000299] dshow demuxer debug: CapturePin::QueryPinInfo
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryAccept [OK] (channels=2, sample
s/sec=44100, bits/samples=16, format=araw)
[00000299] dshow demuxer debug: CapturePin::ReceiveConnection [OK]
[00000299] dshow demuxer debug: CapturePin::NotifyAllocator
[00000299] dshow demuxer debug: filters connected successfully !
[00000299] dshow demuxer debug: MEDIATYPE_Audio
[00000299] dshow demuxer debug: selected audio pin accepts format: araw
[00000299] dshow demuxer debug: Playing...
[00000299] dshow demuxer debug: CapturePin::QueryPinInfo
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::QueryPinInfo
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CaptureFilter::EnumPins
[00000299] dshow demuxer debug: CapturePin::QueryDirection
[00000299] dshow demuxer debug: CapturePin::ConnectedTo [OK]
[00000299] dshow demuxer debug: CaptureFilter::SetSyncSource
[00000299] dshow demuxer debug: CaptureFilter::Pause
[00000299] dshow demuxer debug: CaptureFilter::Run
[00000290] main input debug: selecting program id=0
[00000299] main demuxer debug: using access_demux module "dshow"
[00000290] main input debug: looking for a subtitle file in C:\Archivos de progr
ama\VideoLAN\VLC\
[00000300] main packetizer debug: looking for packetizer module: 17 candidates
[00000300] main packetizer debug: using packetizer module "packetizer_copy"
[00000300] main packetizer debug: thread 4532 (decoder) created at priority 2 (i
nput/decoder.c:159)
[00000290] main input debug: starting in synch mode
[00000290] main input debug: `dshow://' successfully opened
[00000300] packetizer_copy packetizer debug: need dts > 0
[00000292] main stream output debug: adding a new input
[00000298] main private debug: adding a new input
[00000298] mux_ts private debug: adding input codec=s16l pid=68
[00000298] main private error: cannot add this stream
[00000300] main packetizer error: cannot create packetizer output (s16l)


Could anybody help me please?

[lagarazo]

Can anybody give me a clue? Please

[ercos]

Same problem here and no replys to my simillar post either. I have tryed 2 different webcams, a Video Input USB device and currently testing a Hauppage TV card and analog camera. Results are the same: picture on server computer but not in the client one. Plain video plays fine on both computers.

My gut feeling tells me that its something to do with webcam lacking dshow compatibility or MPEG encoding. Still that wont help me on my goal, to broadcast some live feed to local area network. Its a simple problem but noone seems able to help us..

[lagarazo]

They say in the manual that you can do it, and how to do it, but it does not work at all.

So maybe it is because some bug. How can we contact the developer team?

[ercos]

Made some breakthru! When using a RAW stream (not encoded), as webcam and Video inputs, u need to transcode the stream. Thats bechause RAW format is to large to stream to network.

OK this what i did: File > Open Capture Device ...
Video device name: Logitech QuickCam Express
Checked Stream/Save checkbox
Under settings i checked boxes:
Outputs: Play locally, HTTP (type in address of your machine)
Transcoding options: Video codec (preselected mp4v works fine)

On client computer I opened networks stream under http. And the video screen appeared!!!

Only problem i seem to have now is the freeses what occure every few seconds.

--
Hope this helps u. Seems that now an then you have to ask question to become to answer yourself..

[lagarazo]

Thank you.

I am trying this, and now I can receive audio, but not video.

I have tryed every video coded, and none of them work. This is what I get in the console running

vlc.exe -vvv -I rc --ttl 12 dshow:// vdev="" adev="" --sout=#transcode{vcoded=mp4v,acodec=mp3,ab=192,channels=2}:duplicate{dst=std{access=rtp,mux=ts,dst=192.168.1.1:1234}}

[00000543] main input debug: selecting program id=0
[00000553] main demuxer debug: using access_demux module "dshow"
[00000543] main input debug: looking for a subtitle file in C:\ARCHIV~1\VideoLAN
\VLC\
[00000554] main packetizer debug: looking for packetizer module: 17 candidates
[00000554] main packetizer debug: using packetizer module "rawvideo"
[00000554] main packetizer debug: thread 7636 (decoder) created at priority 0 (i
nput/decoder.c:159)
[00000555] main packetizer debug: looking for packetizer module: 17 candidates
[00000555] main packetizer debug: using packetizer module "packetizer_copy"
[00000555] main packetizer debug: thread 7660 (decoder) created at priority 2 (i
nput/decoder.c:159)
[00000543] main input debug: starting in synch mode
[00000543] main input debug: `dshow://' successfully opened
[00000555] packetizer_copy packetizer debug: need dts > 0
[00000545] main stream output debug: adding a new input
[00000546] stream_out_transcode private debug: not transcoding a stream (fcc=`I4
20')
[00000548] stream_out_duplicate private debug: duplicated a new stream codec=I42
0 (es=0 group=0)
[00000552] main private debug: adding a new input
[00000552] mux_ts private debug: adding input codec=I420 pid=68
[00000552] main private error: cannot add this stream
[00000548] stream_out_duplicate private debug: - failed for output 0
[00000554] main packetizer error: cannot create packetizer output (I420)
[00000545] main stream output debug: adding a new input
[00000546] stream_out_transcode private debug: creating audio transcoding from f
cc=`s16l' to fcc=`mp3 '
[00000558] main decoder debug: looking for decoder module: 27 candidates
[00000558] araw decoder debug: samplerate:44100Hz channels:2 bits/sample:16
[00000558] main decoder debug: using decoder module "araw"
[00000559] main encoder debug: looking for encoder module: 10 candidates
[00000559] ffmpeg encoder debug: libavcodec initialized (interface 3344640 )
[00000559] ffmpeg encoder debug: found encoder MPEG Audio layer 1/2/3
[00000559] main encoder debug: using encoder module "ffmpeg"
[00000548] stream_out_duplicate private debug: duplicated a new stream codec=mpg
a (es=1 group=0)
[00000552] main private debug: adding a new input
[00000552] mux_ts private debug: adding input codec=mpga pid=69
[00000552] mux_ts private debug: new PCR PID is 69
[00000548] stream_out_duplicate private debug: - added for output 0


It looks like it cannot send video stream for some coding reason, but I have tried with all my codecs.

[Gujs]

You missed the key in your command vcoded -> vcodec.

vlc.exe -vvv -I rc --ttl 12 dshow:// vdev="" adev="" --sout=#transcode{vcodec=mp4v,acodec=mp3,ab=192,channels=2}:duplicate{dst=std{access=rtp,mux=ts,dst=192.168.1.1:1234}}

[lagarazo]

Sorry, what do you say I missed?

Yes I got it, I should be stupid.

Changing that and the video codec used, I got it working.

Thanks!!

[clubwashbrno]

Hi, I'm trying to set-up a webcam via VLC and watch it on a network pc.

I can see my usb-webcam normaly when I use VLC.
I can stream .avi files normaly over the network.
But when I want to stream my webcam over the network i get an error. I cant find anything about this error message: cannot create packetizer output (s16l)

I use the gui to start it.

Here's the data:
[00000268] main playlist debug: creating new input thread
[00000339] main input debug: set input option: v4l-vdev to /dev/video
[00000339] main input debug: set input option: v4l-adev to /dev/dsp
[00000339] main input debug: set input option: v4l-norm to 3
[00000339] main input debug: set input option: v4l-frequency to -1
[00000339] main input debug: set input option: sout to #transcode{vcodec=mp4v,vb=512,scale=1}:duplicate{dst=std{access=http,mux=ts,url=192.168.0.100:1234}}
[00000339] main input debug: waiting for thread completion
[00000340] main stream output debug: stream=`transcode'
[00000341] main private debug: looking for sout stream module: 1 candidate
[00000340] main stream output debug: stream=`duplicate'
[00000343] main private debug: looking for sout stream module: 1 candidate
[00000343] stream_out_duplicate private debug: creating 'duplicate'
[00000343] stream_out_duplicate private debug: * adding `std{access=http,mux=ts,url=192.168.0.100:1234}'
[00000340] main stream output debug: stream=`std'
[00000344] main private debug: looking for sout stream module: 1 candidate
[00000339] main input debug: thread 3007232944 (input) created at priority 0 (src/input/input.c:230)
[00000344] main private debug: set sout option: sout-standard-access to http
[00000344] main private debug: set sout option: sout-standard-mux to ts
[00000344] main private debug: set sout option: sout-standard-url to 192.168.0.100:1234
[00000344] stream_out_standard private debug: creating `http/ts://192.168.0.100:1234'
[00000344] stream_out_standard private debug: extention is 100:1234
[00000344] stream_out_standard private debug: extention -> mux=(null)
[00000344] stream_out_standard private debug: using `http/ts://192.168.0.100:1234'
[00000345] main private debug: looking for sout access module: 1 candidate
[00000345] main private: creating httpd
[00000345] main private debug: net: listening to 192.168.0.100 port 1234
[00000347] main private debug: thread 2998627248 (httpd host thread) created at priority 0 (src/misc/httpd.c:1189)
[00000345] access_output_http private error: failed to add _vlc-http._tcp service: Invalid service name
[00000348] main private debug: thread 2985233328 (Avahi Poll Iterate Thread) created at priority 0 (bonjour.c:247)
[00000245] main module debug: using sout access module "access_output_http"
[00000344] stream_out_standard private debug: access opened
[00000349] main private debug: looking for sout mux module: 1 candidate
[00000349] mux_ts private debug: shaping=200000 pcr=70000 dts_delay=400000
[00000005] main module debug: using sout mux module "mux_ts"
[00000340] main stream output debug: muxer support adding stream at any time
[00000344] stream_out_standard private debug: mux opened
[00000254] main module debug: using sout stream module "stream_out_standard"
[00000256] main module debug: using sout stream module "stream_out_duplicate"
[00000341] main private debug: set sout option: sout-transcode-vcodec to mp4v
[00000341] main private debug: set sout option: sout-transcode-vb to 512
[00000341] main private debug: set sout option: sout-transcode-scale to 1
[00000341] stream_out_transcode private debug: codec video=mp4v 0x0 scaling: 1.000000 512kb/s
[00000255] main module debug: using sout stream module "stream_out_transcode"
[00000339] main input debug: `v4l://' gives access `v4l' demux `' path `'
[00000339] main input debug: creating demux: access='v4l' demux='' path=''
[00000350] main demuxer debug: looking for access_demux module: 1 candidate
[00000350] v4l demuxer error: cannot open device (Device or resource busy)
[00000350] v4l demuxer debug: openened adev=`/dev/dsp' stereo 44100Hz
[00000350] v4l demuxer debug: v4l grabbing started
[00000350] v4l demuxer debug: new audio es 2 channels 44100Hz
[00000339] main input debug: selecting program id=0
[00000059] main module debug: using access_demux module "v4l"
[00000351] main packetizer debug: looking for packetizer module: 16 candidates
[00000195] main module debug: using packetizer module "packetizer_copy"
[00000351] main packetizer debug: thread 2975144880 (decoder) created at priority 0 (src/input/decoder.c:159)
[00000339] main input debug: starting in synch mode
[00000339] main input debug: `v4l://' successfully opened
[00000340] main stream output debug: adding a new input
[00000341] stream_out_transcode private debug: not transcoding a stream (fcc=`s16l')
[00000343] stream_out_duplicate private debug: duplicated a new stream codec=s16l (es=0 group=0)
[00000349] main private debug: adding a new input
[00000349] mux_ts private debug: adding input codec=s16l pid=68
[00000349] main private error: cannot add this stream
[00000343] stream_out_duplicate private debug: - failed for output 0
[00000351] main packetizer error: cannot create packetizer output (s16l)

Does anybody know what i do wrong?

[clubwashbrno]

access_output_http private error: failed to add _vlc-http._t
is the main error I suppose. But I cant find the sollution for this one also.
Anybody?

[clubwashbrno]

Does anybody have a clue ??

[dd_iit]

hey, even i was getting the same error, when i tried to stream the output from my webcam over the network, using command line. For me the transcoding option from above post worked (thanks man!!!), give it a try..... i am not sure though, just started working with this thing