| This is a prototype codec and for now it has limited functionality. |
| |
| To build from a distribution tarball, you only need to do the following: |
| |
| % ./configure |
| % make |
| |
| To build from the git repository, the following steps are necessary: |
| |
| 1) Clone the repository: |
| |
| % git clone git://git.opus-codec.org/opus.git |
| % cd opus |
| |
| 1) Compiling |
| |
| % ./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 16-bit PCM files (machine endian) or opus bitstreams |
| with simple opus_demo propritary framing. |
