Re: lame 4.0 released

Please find below a manpage for the mp3rtp frontend:


.TH MP3RTP 1 "2026" "LAME" "User Commands"
.SH NAME
mp3rtp \- encode audio to MP3 and stream it via RTP
.SH SYNOPSIS
.B mp3rtp
.I ip\fR[\fI:port\fR[\fI:ttl\fR]]
.RI [ "lame options" ]
.I infile
.I outfile
.SH DESCRIPTION
.B mp3rtp
is a frontend to the LAME MP3 encoder that reads audio data, encodes it
to MP3 in real time and simultaneously streams the resulting MP3
frames as RTP packets to a given IP address, instead of (or in
addition to) writing them to a file. It is typically used to
broadcast a live or recorded audio source, e.g. from a sound card or
another encoder, to a multicast or unicast network address.
.PP
Besides the RTP target, all standard LAME command line options for
input handling and MP3 encoding (bitrate, VBR quality, sampling rate,
etc.) are accepted; see
.BR lame (1)
for the full list.
.SH OPTIONS
.TP
.I ip[:port[:ttl]]
Destination IP address for the RTP stream. Port defaults to 5004 and
TTL defaults to 2 if omitted. Use a multicast address to reach
several receivers at once.
.TP
.I "lame options"
Any encoding option understood by
.BR lame (1),
e.g.
.B \-b
(bitrate),
.B \-V
(VBR quality) or
.B \-\-resample .
.TP
.I infile
Input audio file, or
.B \-
to read from standard input (e.g. from
.BR arecord (1)).
.TP
.I outfile
Output MP3 file that additionally receives the encoded stream, or
.B \-
to discard local storage (e.g.
.IR /dev/null ).
.SH EXAMPLES
.nf
arecord \-b 16 \-s 22050 \-w | mp3rtp 224.17.23.42:5004:2 \-b 56 \- 
/dev/null
arecord \-b 16 \-s 44100 \-w | mp3rtp 10.1.1.42 \-V2 \-b128 \-B256 \- 
out.mp3
.fi
.SH AUTHOR
Felix von Leitner <[email protected]>
.SH SEE ALSO
.BR lame (1)