opusdec1

Usage

Overview

opusdec decodes Opus URLs or files to uncompressed Wave or raw PCM.

In URLs, the file , http , and https schemes are supported unless HTTP support was disabled at build time.

If the input file is specified as - , then opusdec will read from stdin. Likewise, an output filename of - will cause output to be to stdout.

If no output is specified opusdec will attempt to play the audio in realtime if it supports audio playback on your system.

Options

-h, --help

Show help message

-V, --version

Show version information

--quiet

Suppresses program output

--rate n

Force decoding at sampling rate n Hz

--force-stereo

Force decoding to stereo

--gain n

Adjust the output volume n dB, negative values make the signal quieter

--no-dither

Do not dither 16-bit output

--float

Output 32-bit floating-point samples instead of 16-bit integer samples

--force-wav

Force including a Wave header on output (e.g. for non-wav extensions and stdout)

--packet-loss n

Simulate n % random Opus packet loss

--save-range file

Save check values for every frame to a file

Examples

Decode a file input.opus to output.wav

Play a file input.opus

Re-encode a high bitrate Opus file to a lower rate

Play an http stream http://icecast.somwhere.org:8000/stream.opus on a system with pulseaudio
(press ctrl-c to quit)