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mad123.c
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mad123.c
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/*
* madplay - MPEG audio decoder and player
* Copyright (C) 2000-2004 Robert Leslie
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: mad123.c,v 1.8 2004/01/23 09:41:31 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include <stdio.h>
# include <stdlib.h>
# include "getopt.h"
/* banner output from mpg123 */
/*
High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2 and 3.
Version 0.59r (1999/Jun/15). Written and copyrights by Michael Hipp.
Uses code from various people. See 'README' for more!
THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK!
*/
/* short usage output from mpg123 */
/*
usage: mpg123 [option(s)] [file(s) | URL(s) | -]
supported options [defaults in brackets]:
-v increase verbosity level -q quiet (don't print title)
-t testmode (no output) -s write to stdout
-w <filename> write Output as WAV file
-k n skip first n frames [0] -n n decode only n frames [all]
-c check range violations -y DISABLE resync on errors
-b n output buffer: n Kbytes [0] -f n change scalefactor [32768]
-r n set/force samplerate [auto] -g n set audio hardware output gain
-os,-ol,-oh output to built-in speaker,line-out connector,headphones
-a d set audio device
-2 downsample 1:2 (22 kHz) -4 downsample 1:4 (11 kHz)
-d n play every n'th frame only -h n play every frame n times
-0 decode channel 0 (left) only -1 decode channel 1 (right) only
-m mix both channels (mono) -p p use HTTP proxy p [$HTTP_PROXY]
-@ f read filenames/URLs from f
-z shuffle play (with wildcards) -Z random play
-u a HTTP authentication string -E f Equalizer, data from file
-C enable control keys
See the manpage mpg123(1) or call mpg123 with --longhelp for more information.
*/
/* long usage output from mpg123 */
/*
usage: mpg123 [option(s)] [file(s) | URL(s) | -]
supported options:
-k <n> --skip <n>
-a <f> --audiodevice <f>
-2 --2to1 2:1 Downsampling
-4 --4to1 4:1 Downsampling
-t --test
-s --stdout
-S --STDOUT Play AND output stream (not implemented yet)
-c --check
-v[*] --verbose Increase verboselevel
-q --quiet Enables quiet mode
-y --resync DISABLES resync on error
-0 --left --single0 Play only left channel
-1 --right --single1 Play only right channel
-m --mono --mix Mix stereo to mono
--stereo Duplicate mono channel
--reopen Force close/open on audiodevice
-g --gain Set audio hardware output gain
-r --rate Force a specific audio output rate
--8bit Force 8 bit output
-o h --headphones Output on headphones
-o s --speaker Output on speaker
-o l --lineout Output to lineout
-f <n> --scale <n> Scale output samples (soft gain)
-n --frames <n> Play only <n> frames of every stream
-b <n> --buffer <n> Set play buffer ("output cache")
-d --doublespeed Play only every second frame
-h --halfspeed Play every frame twice
-p <f> --proxy <f> Set WWW proxy
-@ <f> --list <f> Play songs in <f> file-list
-z --shuffle Shuffle song-list before playing
-Z --random full random play
--equalizer Exp.: scales freq. bands acrd. to 'equalizer.dat'
--aggressive Tries to get higher priority (nice)
-u --auth Set auth values for HTTP access
-w <f> --wav <f> Writes samples as WAV file in <f> (- is stdout)
--au <f> Writes samples as Sun AU file in <f> (- is stdout)
--cdr <f> Writes samples as CDR file in <f> (- is stdout)
-E <s> --esd <s> Plays to ESD server <s>
See the manpage mpg123(1) for more information.
*/
static
struct option const options[] = {
{ "skip", required_argument, 0, 'k' },
{ "audiodevice", required_argument, 0, 'a' },
{ "2to1", no_argument, 0, '2' },
{ "4to1", no_argument, 0, '4' },
{ "test", no_argument, 0, 't' },
{ "stdout", no_argument, 0, 's' },
{ "STDOUT", no_argument, 0, 'S' },
{ "check", no_argument, 0, 'c' },
{ "verbose", no_argument, 0, 'v' },
{ "quiet", no_argument, 0, 'q' },
{ "resync", no_argument, 0, 'y' },
{ "left", no_argument, 0, '0' },
{ "single0", no_argument, 0, '0' },
{ "right", no_argument, 0, '1' },
{ "single1", no_argument, 0, '1' },
{ "mono", no_argument, 0, 'm' },
{ "mix", no_argument, 0, 'm' },
{ "stereo", no_argument, 0, -'s' },
{ "reopen", no_argument, 0, -'r' },
{ "gain", required_argument, 0, 'g' },
{ "rate", required_argument, 0, 'r' },
{ "8bit", no_argument, 0, -'8' },
{ "headphones", no_argument, 0, 'o' },
{ "speaker", no_argument, 0, 'o' },
{ "lineout", no_argument, 0, 'o' },
{ "scale", required_argument, 0, 'f' },
{ "frames", required_argument, 0, 'n' },
{ "buffer", required_argument, 0, 'b' },
{ "doublespeed", required_argument, 0, 'd' },
{ "halfspeed", required_argument, 0, 'h' },
{ "proxy", required_argument, 0, 'p' },
{ "list", required_argument, 0, '@' },
{ "shuffle", no_argument, 0, 'z' },
{ "random", no_argument, 0, 'Z' },
{ "equalizer", required_argument, 0, 'E' },
{ "aggressive", no_argument, 0, -'a' },
{ "auth", required_argument, 0, 'u' },
{ "wav", required_argument, 0, 'w' },
{ "au", required_argument, 0, -'m' },
{ "cdr", required_argument, 0, -'c' },
{ "esd", required_argument, 0, -'e' },
{ 0 }
};
static
struct {
int verbosity;
} config = {
0 /* verbosity */
};
int main(int argc, char *argv[])
{
int opt, index;
while ((opt = getopt_long(argc, argv,
"vqtsSw:k:n:cyb:f:r:g:o:a:24d:h:01mp:@:zZu:E:C",
options, &index)) != -1) {
switch (opt) {
case 'v':
++config.verbosity;
break;
case 'q':
config.verbosity = -1;
break;
case '?':
exit(1);
}
}
if (config.verbosity >= 0) {
fprintf(stderr,
"High Quality MPEG 1.0/2.0/2.5 Audio Player"
" for Layer I, II, and III.\n"
"Version 0.59r (2000/Oct/04)."
" Written and copyright by Robert Leslie.\n"
"Uses mpg123 command interface. See the documentation!\n"
"THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY!"
" USE AT YOUR OWN RISK!\n");
}
/* ... */
return 0;
}