99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2003-2009 The Music Player Daemon Project
|
||
|
|
* http://www.musicpd.org
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Parser functions for audio related objects.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "audio_parser.h"
|
||
|
|
#include "audio_format.h"
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The GLib quark used for errors reported by this library.
|
||
|
|
*/
|
||
|
|
static inline GQuark
|
||
|
|
audio_parser_quark(void)
|
||
|
|
{
|
||
|
|
return g_quark_from_static_string("audio_parser");
|
||
|
|
}
|
||
|
|
|
||
|
|
bool
|
||
|
|
audio_format_parse(struct audio_format *dest, const char *src, GError **error)
|
||
|
|
{
|
||
|
|
char *endptr;
|
||
|
|
unsigned long value;
|
||
|
|
|
||
|
|
audio_format_clear(dest);
|
||
|
|
|
||
|
|
/* parse sample rate */
|
||
|
|
|
||
|
|
value = strtoul(src, &endptr, 10);
|
||
|
|
if (endptr == src) {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Sample rate missing");
|
||
|
|
return false;
|
||
|
|
} else if (*endptr != ':') {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Sample format missing");
|
||
|
|
return false;
|
||
|
|
} else if (value <= 0 || value > G_MAXINT32) {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Invalid sample rate: %lu", value);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
dest->sample_rate = value;
|
||
|
|
|
||
|
|
/* parse sample format */
|
||
|
|
|
||
|
|
src = endptr + 1;
|
||
|
|
value = strtoul(src, &endptr, 10);
|
||
|
|
if (endptr == src) {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Sample format missing");
|
||
|
|
return false;
|
||
|
|
} else if (*endptr != ':') {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Channel count missing");
|
||
|
|
return false;
|
||
|
|
} else if (value != 16 && value != 24 && value != 8) {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Invalid sample format: %lu", value);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
dest->bits = value;
|
||
|
|
|
||
|
|
/* parse channel count */
|
||
|
|
|
||
|
|
src = endptr + 1;
|
||
|
|
value = strtoul(src, &endptr, 10);
|
||
|
|
if (*endptr != 0 || (value != 1 && value != 2)) {
|
||
|
|
g_set_error(error, audio_parser_quark(), 0,
|
||
|
|
"Invalid channel count: %s", src);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
dest->channels = value;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|