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      1 To build this source code, simply type:
      2 
      3 % make
      4 
      5 If this does not work, or if you want to change the default configuration
      6 (e.g., to compile for a fixed-point architecture), simply edit the options
      7 in the Makefile.
      8 
      9 An up-to-date implementation conforming to this standard is available in a
     10 Git repository at https://git.xiph.org/opus.git or on a website at:
     11 https://opus-codec.org/
     12 However, although that implementation is expected to remain conformant
     13 with the standard, it is the code in this RFC that shall remain normative.
     14 To build from the git repository instead of using this RFC, follow these
     15 steps:
     16 
     17 1) Clone the repository (latest implementation of this standard at the time
     18 of publication)
     19 
     20 % git clone https://git.xiph.org/opus.git
     21 % cd opus
     22 
     23 2) Compile
     24 
     25 % ./autogen.sh
     26 % ./configure
     27 % make
     28 
     29 Once you have compiled the codec, there will be a opus_demo executable in
     30 the top directory.
     31 
     32 Usage: opus_demo [-e] <application> <sampling rate (Hz)> <channels (1/2)>
     33          <bits per second> [options] <input> <output>
     34        opus_demo -d <sampling rate (Hz)> <channels (1/2)> [options]
     35          <input> <output>
     36 
     37 mode: voip | audio | restricted-lowdelay
     38 options:
     39 -e                   : only runs the encoder (output the bit-stream)
     40 -d                   : only runs the decoder (reads the bit-stream as input)
     41 -cbr                 : enable constant bitrate; default: variable bitrate
     42 -cvbr                : enable constrained variable bitrate; default: unconstrained
     43 -bandwidth <NB|MB|WB|SWB|FB> : audio bandwidth (from narrowband to fullband);
     44                                default: sampling rate
     45 -framesize <2.5|5|10|20|40|60> : frame size in ms; default: 20
     46 -max_payload <bytes> : maximum payload size in bytes, default: 1024
     47 -complexity <comp>   : complexity, 0 (lowest) ... 10 (highest); default: 10
     48 -inbandfec           : enable SILK inband FEC
     49 -forcemono           : force mono encoding, even for stereo input
     50 -dtx                 : enable SILK DTX
     51 -loss <perc>         : simulate packet loss, in percent (0-100); default: 0
     52 
     53 input and output are little endian signed 16-bit PCM files or opus bitstreams
     54 with simple opus_demo proprietary framing.
     55