1To build this source code, simply type:
2
3% make
4
5If 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
7in the Makefile.
8
9An up-to-date implementation conforming to this standard is available in a
10Git repository at git://git.xiph.org/opus.git or on a website at:
11http://opus-codec.org/
12However, although that implementation is expected to remain conformant 
13with the standard, it is the code in this RFC that shall remain normative. 
14To build from the git repository instead of using this RFC, follow these
15steps:
16
171) Clone the repository (latest implementation of this standard at the time 
18of publication)
19
20% git clone git://git.opus-codec.org/opus.git
21% cd opus
22
232) Compile
24
25% ./autogen.sh
26% ./configure
27% make
28
29Once you have compiled the codec, there will be a opus_demo executable in
30the top directory.
31
32Usage: 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
37mode: voip | audio | restricted-lowdelay
38options:
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
53input and output are little endian signed 16-bit PCM files or opus bitstreams
54with simple opus_demo proprietary framing.
55