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<<TableOfContents(3)>> |
Video Streaming Howto
by asbesto & geenna, Poetry Hacklab, 15/06/2010
Using ffmpeg & ffserver
We want to use a web camera to stream video to web page using ffserver. ffserver is part of the ffmpeg package.
apt-get -y install ffmpeg
ffserver creates a network socket that is available from client machines to view the video. Once started, you attach an ffmpeg process to the server to do the encoding. Configuration of ffserver is done via the /etc/ffserver.conf file.
We installed ffserver on a machine at ip address 10.10.10.160. Typical ffserver.conf file:
Port 8090 # bind to all IPs aliased or not BindAddress 0.0.0.0 # max number of simultaneous clients MaxClients 1000 # max bandwidth per-client (kb/s) MaxBandwidth 10000 # Suppress that if you want to launch ffserver as a daemon. NoDaemon <Feed feed1.ffm> File /tmp/feed1.ffm FileMaxSize 800M </Feed> <Stream status.html> Format status </Stream> <Stream test.swf> Feed feed1.ffm Format swf VideoCodec flv VideoFrameRate 10 VideoBufferSize 80000 VideoBitRate 30 VideoQMin 1 VideoQMax 5 VideoSize 352x288 PreRoll 0 # #Noaudio # </Stream>
To get things going, start the server
ffserver &
Attach the ffmpeg process to do the encoding. This is done via a loopback socket.
# # this is without audio # ffmpeg -r 3 -s 352x288 -f video4linux2 -i /dev/video0 http://10.10.10.160:8090/feed1.ffm # #This is WITH EMBEDDED AUDIO!!! # ffmpeg -f oss -i /dev/dsp -r 6 -s 352x288 -f video4linux2 -i /dev/video0 http://10.10.10.160:8090/feed1.ffm
Parameters are
- -r rate in frames per second
- -s size in pixels width x height (width must be a multiple of 16) and should match the values in the above config file.
- -f gets input from the video4linux driver
-i is the v4l device (if this is not present refer to Logitech QuickCam Express)
- Lastly the loopback socket
Now you should be able to browse to the server address (or localhost if it's the same machine) and see some live video and the status page.
The name of the file will be as defined in the <Stream> section above.
A simple source for a basic webpage with embedded video is here:
<html> <embed src=http://10.10.10.160:8090/test.swf height=128 width=160> </embed> </html>
Video Streaming using FreeJ
Please read FreejStreaming for this. Only OGG/Theora!