From 5090cf6484f5e7464aeba54d19500cc334a80fad Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Wed, 11 Feb 2009 18:00:41 +0100
Subject: audio: replaced parseAudioConfig() with audio_format_parse()
Added audio_format_parse() in a separate library, with a modern
interface: return a GError instead of logging errors. This allows the
caller to deal with the error.
---
src/audio_parser.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)
create mode 100644 src/audio_parser.c
(limited to 'src/audio_parser.c')
diff --git a/src/audio_parser.c b/src/audio_parser.c
new file mode 100644
index 000000000..807a279b3
--- /dev/null
+++ b/src/audio_parser.c
@@ -0,0 +1,98 @@
+/*
+ * 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;
+}
--
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