viordash / rem

Audio and video processing media library

librem README

librem is a Audio and video processing media library

• Copyright (C) 2010 - 2019 Creytiv.com
• Copyright (C) 2020 - 2021 Baresip Foundation (https://github.com/baresip)

Features

• Audio buffer
• Audio sample format conversion
• Audio file reader/writer
• Audio mixer
• Audio resampler
• Audio tone generator
• Audio codec (G.711)
• DTMF decoder
• Video mixer
• Video pixel converter
• FIR-filter

Building

librem is using GNU makefiles, and libre must be installed before building.

Build with default options

$ make
$ sudo make install
$ sudo ldconfig

License

The librem project is using the BSD license.

Contributing

Patches can sent via Github Pull-Requests

Modules

Audio Modules:

  name:     status:       description:

* aac       unstable      Advanced Audio Coding (AAC)
* au        testing       Base audio types
* aubuf     testing       Audio buffer
* auconv    unstable      Audio sample format conversion
* aufile    testing       Audio file reader/writer
* aumix     unstable      Audio mixer
* auresamp  unstable      Audio resampler
* autone    testing       Tone/DTMF generator
* dtmf      unstable      DTMF decoder
* g711      stable        G.711 audio codec




Video Modules:

  name:     status:       description:

* avc       unstable      Advanced Video Coding (AVC)
* h264      unstable      H.264 header parser
* vid       testing       Base video types
* vidconv   testing       Colorspace conversion and scaling
* vidmix    unstable      Video mixer




Generic modules:

* dsp       testing       DSP routines
* flv       unstable      Flash Video File Format
* fir       unstable      FIR (Finite Impulse Response) filter
* goertzel  unstable      Goertzel Algorithm

Specifications:

• ITU-T G.711 Appendix I and Appendix II

Supported platforms

Same as libre

Related projects

• libre
• retest
• baresip

References

https://github.com/baresip