The VideoLAN Forums

Has anyone had any success streaming MPEG4 from a USB camera at 128kbps? I have no problem streaming at 300kbps or above but I could simply not find a parameter that will allow me stream at 90 or 128kbps without a lot of pixellation and mosaic'ing when there's a lot of motion in front of the camera.

My latest pc-side attempt (Win 2003 Server with dual Xeon 18GHz + 16G memory):

vlc dshow:// :dshow-vdev="USB Video Device" --width=320 --height=240 -vvv --sout "#transcode{high-priority,vcodec=mp4v,venc=ffmpeg{hurry-up,hq=simple,interlace,interlace-me,keyint=15,bframes=0,strict=1,strict-rc},vb=128,fps=15,width=320,height=240}:rtp{mux=ts,dst=224.2.0.1,port=4480,sdp=rtsp://10.4.4.125:8085/test.sdp}"

My latest Linux attempt (Fedora 10, yum updated as of yesterday, on ThinkPad T43):

cvlc v4l2:// :v4l2-dev=/dev/video0 :v4l2-fps=15.0 :v4l2-width=320 :v4l2-height=240 --width=320 --height=240 -vvv --no-audio --no-sout-audio --sout '#duplicate{dst=display,dst="transcode{vcodec=mp4v,venc=ffmpeg{keyint=15,hurry-up,hq=simple,bframes=0,strict=1,strict-rc},vb=128,fps=15,width=320,height=240}:rtp{mux=ts,dst=224.2.0.1,port=4470,sdp=rtsp://192.168.47.131:80/test.sdp}"}'

If you have this working I'd appreciate sharing your sharing your hardware and your software configuration. My company is willing to pay for this help ... especially if you're in the BeiJing area we can pay for you to come in or I can visit your office for consultation.

Thanks
Dori