
In addition to audio_format_valid(), provide functions which validate only one attribute of an audio_format. These functions are reused by audio_format_parse().
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Parser functions for audio related objects.
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*
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*/
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#include "audio_parser.h"
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#include "audio_format.h"
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#include <stdlib.h>
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/**
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* The GLib quark used for errors reported by this library.
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*/
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static inline GQuark
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audio_parser_quark(void)
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{
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return g_quark_from_static_string("audio_parser");
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}
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bool
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audio_format_parse(struct audio_format *dest, const char *src, GError **error)
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{
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char *endptr;
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unsigned long value;
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audio_format_clear(dest);
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/* parse sample rate */
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value = strtoul(src, &endptr, 10);
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if (endptr == src) {
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g_set_error(error, audio_parser_quark(), 0,
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"Sample rate missing");
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return false;
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} else if (*endptr != ':') {
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g_set_error(error, audio_parser_quark(), 0,
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"Sample format missing");
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return false;
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} else if (!audio_valid_sample_rate(value)) {
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g_set_error(error, audio_parser_quark(), 0,
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"Invalid sample rate: %lu", value);
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return false;
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}
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dest->sample_rate = value;
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/* parse sample format */
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src = endptr + 1;
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value = strtoul(src, &endptr, 10);
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if (endptr == src) {
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g_set_error(error, audio_parser_quark(), 0,
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"Sample format missing");
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return false;
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} else if (*endptr != ':') {
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g_set_error(error, audio_parser_quark(), 0,
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"Channel count missing");
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return false;
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} else if (!audio_valid_sample_format(value)) {
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g_set_error(error, audio_parser_quark(), 0,
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"Invalid sample format: %lu", value);
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return false;
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}
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dest->bits = value;
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/* parse channel count */
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src = endptr + 1;
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value = strtoul(src, &endptr, 10);
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if (*endptr != 0 || !audio_valid_channel_count(value)) {
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g_set_error(error, audio_parser_quark(), 0,
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"Invalid channel count: %s", src);
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return false;
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}
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dest->channels = value;
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return true;
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}
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