1 files changed, 11 insertions, 3 deletions
diff --git a/decoder.h b/decoder.h
index e992af9..8335db8 100644
--- a/decoder.h
+++ b/decoder.h
@@ -1,22 +1,30 @@
 #ifndef DECODER_H
 #define DECODER_H
 
+#include "audioformat.h"
+
 #include <glib.h>
 #include <gio/gio.h>
 
+struct decoder;
+
 struct decoder_plugin {
 	const gchar *name;
 	const gchar * const *extensions;
 
-	gboolean (*init)(gpointer *data);
-	gssize (*decode)(gpointer data, GInputStream *input,
+	gboolean (*init)(struct decoder *decoder);
+	gssize (*decode)(struct decoder *decoder, GInputStream *input,
 			GOutputStream *output, GError **error);
-	void (*close)(gpointer data);
+	void (*close)(struct decoder *decoder);
 };
 
 struct decoder {
 	const struct decoder_plugin *decoder;
 
+	unsigned int rate;
+	enum audio_format format;
+	unsigned int channels;
+
 	gpointer data;
 };