opusdec

Section: opus-tools (1)
Updated: 2012-08-31
Page Index

 

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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLES
AUTHORS
BUGS
SEE ALSO
LinuxReviews : manual page archive : man1