The VideoLAN Forums

Just in case somebody else will find this useful. The list of cameras which hog the entire USB bandwidth (regardless of fps, resolution or compression used) has expanded to include MS LifeCam Studio and apparently Logitech C910. I don't know for sure about Logitech C910 - I've just seen reports onli...

Hi Jean-Baptiste, As per your suggestion, I've tried using --sout-http-mime="multipart/x-mixed-replace;boundary=--myboundary" However, Firefox is still recognising the stream as a binary file, and nothing else. VLC client is still able to display the stream without problem. The above seems...

Is there anything I can do to test this further?

Hi j-b, Firefox is supposed to be able to view mjpeg streams with default settings. It is able to view them ok from other sources - just not the ones created by VLC. Also, the incoming stream is not even detected as a particular mime-type - it is just detected as a binary file. Is it possible that t...

I use VLC 1.1.3. I am trying to stream video in mjpeg from a webcam. I'm using the following command: vlc --no-audio v4l2:///dev/video0:width=640:height=480:fps=5:chroma=mjpg --sout "#standard{access=http,mux=mpjpeg,dst=localhost:8080}" The above command runs ok, without problems. I can vi...

Does anybody know if VLC have some sort of bounty system - whereby a particular donation can be made with view of fixing a certain bug or adding a certain feature? I was just pondering the possibility of donating some money towards this problem being fixed - but don't know if all donations go into t...

Thanks Remi. At least it helps to know that it's not something that I'm doing wrong. I've been banging my head for over a week with this - thinking that I didn't understand the syntax/options correctly.

Sebastian

I have done some further testing with a simple .avi file (encoded in mjpeg): vlc -vvv --sub-filter=marq --marq-marquee "sometext" camera0-13_49_02.avi This displays the video on screen ok, but it does not display any overlay text. The console with -vvv shows the following: VLC media player...

Is this pretty much 'official'? Shall I fill in a bug report?

I don't know if you are still watching this thread. I've spent the past week researching the issue of multiple webcams on the same usb controller (with most motherboards having one single controller for the 4-8 usb connectors). The amount of usb bandwidth a webcam needs is dependent on the resolutio...

I'm trying to capture video from a webcam in mjpeg, display it on the monitor (on the same pc) and transcode it to mpeg1 and save it to a file at the same time. I can successfully transcode it and save it using the following command: cvlc --no-audio v4l2:///dev/video0:width=640:height=480:chroma=mjp...

Hi, I'm using VLC 1.1.3. I can record the mjpeg stream of my camera using: vlc --no-audio v4l2:///dev/video0:width=640:height=480:fps=25:chroma=mjpg --sout "#transcode{vcodec=mp2v,width=640,height=480,vb=2048,fps=25}:standard{access=file,mux=ps,dst=./test.mpg}}" I can also view the stream ...

Edit: Please see the next post - it looks like it has nothing to do with webcams - just with the mjpeg format. I'm using VLC with a webcam for streaming and/or displaying video. If I use: vlc --sub-filter=marq --marq-marquee "test_text" v4l2:///dev/video0 it will work ok, displaying on the...

Answering my own question. It turns out that it is an issue with the Microsoft Lifecam Cinema. It is requesting the highest bandwidth regardless of resolution, frame rate or if using mjpeg or not. I've posted on the uvc driver developers list to see if anybody has come up with a workaround/patch - o...

I'm having some trouble getting several webcams (at least two) and VLC working together - either streaming, or saving a file, or just displaying on the monitor. I know there are issues with available bandwidth on a single USB root hub - but I've worked out so far that if the driver requests that the...