Documentation:Streaming HowTo/Streaming a live video feed to Darwin Streaming Server for Mobile Phones

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Streaming a live video to DSS for Mobile Phones with VLC

% vlc -vvv v4l2:///dev/video0:input=1:width=128:height=96:adev=hw.1,0:samplerate=32000 --sout '#transcode{venc=ffmpeg{keyint=1},vcodec=mp4v,vb=100k,acodec=mp4a,fps=10,ab=8k,channels=1,samplerate=16000}:rtp{mp4a-latm,dst=,port-audio=20000,port-video=20002,ttl=127,name=CHANNEL,sdp=file:///usr/local/movies/channel.sdp}'


  • v4l2:///dev/video0 is the video device you want you want to stream,
  • input=1 is the input channel of the video device (0 - tv tuner, 1 - composite),
  • width=128:height=96 is the width and height of the input video signal to fetch by VLC,
  • adev=hw.1,0 is the alsa audio device to capture audio from,
  • samplerate=32000 is the input sample rate of the audio live feed,
  • venc=ffmpeg is the encoder used (in this case it's ffmpeg, but you can use x264),
  • {keyint=1} is the advanced ffmpeg encoder switches,
  • vcodec=mp4v is video codec used to encode this live video feed (in this case it's MPEG4),
  • vb=100k is the video bitrate (100 kbits/s is this case),
  • acodec=mp4a is the audio codec used (is this case it's AAC),
  • fps=10 is the frame rate of the video feed,
  • ab=8k is the audio bitrate (is this case 8 kbits/s),
  • mp4a-latm is only used for aac audio, it activates a different payload format for aac,
  • dst= is the destination IP, where Darwin Streaming Server is hosted,
  • ttl=127 is the value of the TTL (Time To Live) of your IP packets (which means that the stream will be able to cross 126 routers),
  • sdp=file:///usr/local/movies/channel.sdp is where to create the SDP file for live streaming with Darwin Streaming Server (it should be inside of the DSS movies folder),
  • name=CHANNEL is the name of the live video feed.

Tested on Nokia N73 and SE K800.

There is a small problem with some Nokia phones and Darwin Streaming Servers, that need a line to be edited in the created SDP file (for example):

  • from b=RR:0 to b=RR:800

After running this command from console, you can access it from your mobile phone or VLC or any player that supports RTSP protocol

  • rtsp://


  • is the IP address of the machine where DSS is running.

This page is part of official VLC media player Documentation (User GuideStreaming HowToHacker GuideModules)
Please read the Documentation Editing Guidelines before you edit the documentation
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.