opusdec(1) opus-tools opusdec(1)
NAME
opusdec - decode audio in Opus format to Wave or raw PCM
SYNOPSIS
opusdec [
-hV ] [
--quiet ] [
--rate Hz ] [
--force-stereo ] [
--gain dB ] [
--no-dither ] [
--float ] [
--force-wav ] [
--packet-loss pct ] [
--save-range file ]
input.opus [
output.wav ]
DESCRIPTION
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 opusdec input.opus output.wav
Play a file
input.opus opusdec input.opus
Re-encode a high bitrate Opus file to a lower rate
opusdec --force-wav input.opus - | opusenc --bitrate 64 -
output.opus
Play an http stream
http://icecast.somwhere.org:8000/stream.opus on a
system with pulseaudio
(press ctrl-c to quit) padsp opusdec http://icecast.somwhere.org:8000/stream.opus
AUTHORS
Jean-Marc Valin <jmvalin@jmvalin.ca>
Gregory Maxwell <greg@xiph.org>
BUGS
Opusdec does not currently reject all invalid files which it should
reject. It also doesn't provide very helpful output for the
corrupted files it does reject. Use
opusinfo(1) for somewhat better
diagnostics.
SEE ALSO
opusenc(1),
opusinfo(1)Xiph.Org Foundation 2012-08-31 opusdec(1)
