add channel_set_volume and channel_set_pan

1 files changed, 5 insertions, 1 deletions

diff --git a/src/channel.h b/src/channel.h
index 2bc45d2..6f06803 100644
--- a/src/channel.h
+++ b/src/channel.h
@@ -11,7 +11,7 @@ struct channel_t {
 	volatile pint active; /* boolean */
 	volatile pint paused; /* boolean */
 	volatile pint volume; /* 0-255 */
-	volatile pint pan;    /* -128-127 */
+	volatile pint pan;    /* -128-128 */
 
 	PMutex *sound_mutex;
 	struct mossrose_sound_t sound;
@@ -21,6 +21,10 @@ struct channel_t {
 
 void channel_init(struct channel_t *chan);
 void channel_reset(struct channel_t *chan);
+void channel_pause(struct channel_t *chan);
+void channel_resume(struct channel_t *chan);
+void channel_set_volume(struct channel_t *chan, float volume);
+void channel_set_pan(struct channel_t *chan, float pan);
 void channel_get_next_sample(float *left, float *right, struct channel_t *chan);