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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 sup-
     port 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 real-
     time if it supports audio playback on your system.

OPTIONS
     -h, --help
	    Show help message

     -V, --version
	    Show version information

     --quietSuppresses 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  qui-
	    eter

     --no-dither
	    Do not dither 16-bit output

     --floatOutput  32-bit floating-point samples instead of 16-bit integer sam-
	    ples

     --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  -  out-
	    put.opus

     Play  an http stream http://icecast.somwhere.org:8000/stream.opus on a sys-
     tem 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)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=opusdec&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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