command: allow changing replay gain mode on-the-fly

The new command "replay_gain_mode" allows the user to switch the
replay gain mode on-the-fly.  No more mpd.conf editing.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/replay_gain.h b/src/replay_gain.h
index aa48f3f14..5d0492ad8 100644
--- a/src/replay_gain.h
+++ b/src/replay_gain.h
@@ -23,6 +23,8 @@
 #ifndef MPD_REPLAY_GAIN_H
 #define MPD_REPLAY_GAIN_H
 
+#include <stdbool.h>
+
 enum replay_gain_mode {
 	REPLAY_GAIN_OFF = -1,
 	REPLAY_GAIN_ALBUM,
@@ -52,6 +54,20 @@ void replay_gain_info_free(struct replay_gain_info *info);
 
 void replay_gain_global_init(void);
 
+/**
+ * Returns the current replay gain mode as a machine-readable string.
+ */
+const char *
+replay_gain_get_mode_string(void);
+
+/**
+ * Sets the replay gain mode, parsed from a string.
+ *
+ * @return true on success, false if the string could not be parsed
+ */
+bool
+replay_gain_set_mode_string(const char *p);
+
 void
 replay_gain_apply(struct replay_gain_info *info, char *buffer, int bufferSize,
 		  const struct audio_format *format);