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