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98 lines
2.8 KiB
Text
98 lines
2.8 KiB
Text
Project : mediastreamer2 - a modular sound and video processing and streaming
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Email : simon.morlat_at_linphone.org
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License : GPL
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Home Page : http://savannah.gnu.org/projects/linphone
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Mediastreamer2 is a GPL licensed library to make audio and
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video real-time streaming and processing. Written in pure C,
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it is based upon the ortp library.
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Design:
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------
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Using mediastreamer2 will allow you to chain filters in a graph. Each
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filter will be responsible for doing some kind of processing and will
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deliver data to the next filter. As an example, you could get some
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data from network and unpack it in an RTP filter. This RTP filter will
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deliver the data to a decoder (speex, G711...) which will deliver it
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to a filter that is able to play the PCM data or record it into a .wav
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file.
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There is a doxygen documentation for more information.
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Features:
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--------
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mediastreamer2 already provides a large set of filters.
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Here is a complete list of built-in filters.
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All supported platforms:
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* RTP receiver
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* RTP sender
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* tee (duplicate data)
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Audio Filters:
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* audio capture
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* audio playback
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* mme API (windows)
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* alsa API (linux)
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* oss API (linux)
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* arts API (linux)
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* portaudio API (macosx and other)
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* macsnd API (native macosx API -please do more testing...-)
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* aq (audio queue, macos API too)
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* several audio encoder/decoder: PCMU, PCMA, speex, gsm
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* wav file reader.
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* wav file recorder.
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* resampler.
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* conference bridge.
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* volume analyser, gain control, and automatic gain control.
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* acoustic echo canceller.
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* dtmf generation filter.
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* parametric equalizer, can be used to compensate the spectral response of a bad quality speaker or microphone
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Video Filters:
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* video capture
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* v4w API (windows, deprecated)
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* directshow API (windows)
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* video4linux and video4linux2 APIs (linux)
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* video display
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* v4w API (windows)
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* SDL API (linux, macosx...)
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* several audio encoder/decoder: H263-1998, MP4V-ES, theora
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* image resizer.
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* format converter. (RBG24, I420...)
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Plugin Filters:
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* iLBC decoder/encoder.
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* H264 codec, based on x264
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Note that, you can build your own components/filters to do your
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own processing or support other codecs.
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Installation procedure:
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-----------------------
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The program is known to run on linux, but might work
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on any unix and windows systems.
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$> ./configure
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$> make
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$> su -c 'make install'
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Contact information:
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--------------------
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For more information on mediastreamer2, any contributions, or any remarks,
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you can contact me at <simon.morlat_at_linphone.org>. Commercial licensing
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is also provided through antisip (http://www.antisip.com or jack_at_atosc.org).
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Use the *linphone* mailing list for question about mediastreamer2.
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<linphone-developers@nongnu.org>.
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Subscribe by writing to:
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<linphone-developers-request@nongnu.org> with a subject set to "subscribe".
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