3 files changed, 64 insertions, 4 deletions

diff --git a/src/decoder_list.c b/src/decoder_list.c
index b447a6ac1..837c5ca7b 100644
--- a/src/decoder_list.c
+++ b/src/decoder_list.c
@@ -119,8 +119,8 @@ decoder_plugin_from_suffix(const char *suffix, unsigned int next)
 		i = 0;
 	for (; decoder_plugins[i] != NULL; ++i) {
 		const struct decoder_plugin *plugin = decoder_plugins[i];
-		if (decoder_plugins_enabled[i] && plugin->suffixes != NULL &&
-		    string_array_contains(plugin->suffixes, suffix)) {
+		if (decoder_plugins_enabled[i] &&
+		    decoder_plugin_supports_suffix(plugin, suffix)) {
 			++i;
 			return plugin;
 		}
@@ -141,8 +141,8 @@ decoder_plugin_from_mime_type(const char *mimeType, unsigned int next)
 		i = 0;
 	for (; decoder_plugins[i] != NULL; ++i) {
 		const struct decoder_plugin *plugin = decoder_plugins[i];
-		if (decoder_plugins_enabled[i] && plugin->mime_types != NULL &&
-		    string_array_contains(plugin->mime_types, mimeType)) {
+		if (decoder_plugins_enabled[i] &&
+		    decoder_plugin_supports_suffix(plugin, mimeType)) {
 			++i;
 			return plugin;
 		}
diff --git a/src/decoder_plugin.c b/src/decoder_plugin.c
new file mode 100644
index 000000000..79b0d5322
--- /dev/null
+++ b/src/decoder_plugin.c
@@ -0,0 +1,46 @@
+/*
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "decoder_plugin.h"
+#include "utils.h"
+
+#include <assert.h>
+
+bool
+decoder_plugin_supports_suffix(const struct decoder_plugin *plugin,
+			       const char *suffix)
+{
+	assert(plugin != NULL);
+	assert(suffix != NULL);
+
+	return plugin->suffixes != NULL &&
+		string_array_contains(plugin->suffixes, suffix);
+
+}
+
+bool
+decoder_plugin_supports_mime_type(const struct decoder_plugin *plugin,
+				  const char *mime_type)
+{
+	assert(plugin != NULL);
+	assert(mime_type != NULL);
+
+	return plugin->mime_types != NULL &&
+		string_array_contains(plugin->mime_types, mime_type);
+}
diff --git a/src/decoder_plugin.h b/src/decoder_plugin.h
index 66501a0a1..a078540a6 100644
--- a/src/decoder_plugin.h
+++ b/src/decoder_plugin.h
@@ -161,4 +161,18 @@ decoder_plugin_container_scan(	const struct decoder_plugin *plugin,
 	return plugin->container_scan(pathname, tnum);
 }
 
+/**
+ * Does the plugin announce the specified file name suffix?
+ */
+bool
+decoder_plugin_supports_suffix(const struct decoder_plugin *plugin,
+			       const char *suffix);
+
+/**
+ * Does the plugin announce the specified MIME type?
+ */
+bool
+decoder_plugin_supports_mime_type(const struct decoder_plugin *plugin,
+				  const char *mime_type);
+
 #endif