Enforce volume min and max (small regression from previous commits)

src/audio_output/intf.c

@@ -76,10 +76,17 @@ static void prepareVolume (vlc_object_t *obj, aout_instance_t **aoutp,
 
 /** Commit a volume change transaction. */
 static int commitVolume (vlc_object_t *obj, aout_instance_t *aout,
-                         audio_volume_t volume, bool mute)
+                         audio_volume_t *volp, bool mute)
 {
     int ret = 0;
 
+    audio_volume_t volume = *volp;
+    if (volume < AOUT_VOLUME_MIN)
+        volume = AOUT_VOLUME_MIN;
+    if (volume > AOUT_VOLUME_MAX)
+        volume = AOUT_VOLUME_MAX;
+    *volp = volume;
+
     var_SetInteger (obj, "volume", volume);
     var_SetBool (obj, "mute", mute);
 
@@ -142,7 +149,7 @@ int aout_VolumeSet (vlc_object_t *obj, audio_volume_t volume)
     bool mute;
 
     prepareVolume (obj, &aout, NULL, &mute);
-    return commitVolume (obj, aout, volume, mute);
+    return commitVolume (obj, aout, &volume, mute);
 }
 
 #undef aout_VolumeUp
@@ -160,7 +167,7 @@ int aout_VolumeUp (vlc_object_t *obj, int steps, audio_volume_t *volp)
 
     prepareVolume (obj, &aout, &volume, &mute);
     volume += stepsize * steps;
-    ret = commitVolume (obj, aout, volume, mute);
+    ret = commitVolume (obj, aout, &volume, mute);
     if (volp != NULL)
         *volp = volume;
     return ret;
@@ -188,7 +195,7 @@ int aout_ToggleMute (vlc_object_t *obj, audio_volume_t *volp)
 
     prepareVolume (obj, &aout, &volume, &mute);
     mute = !mute;
-    ret = commitVolume (obj, aout, volume, mute);
+    ret = commitVolume (obj, aout, &volume, mute);
     if (volp != NULL)
         *volp = mute ? AOUT_VOLUME_MIN : volume;
     return ret;
@@ -221,7 +228,7 @@ int aout_SetMute (vlc_object_t *obj, audio_volume_t *volp, bool mute)
     audio_volume_t volume;
 
     prepareVolume (obj, &aout, &volume, NULL);
-    ret = commitVolume (obj, aout, volume, mute);
+    ret = commitVolume (obj, aout, &volume, mute);
     if (volp != NULL)
         *volp = mute ? AOUT_VOLUME_MIN : volume;
     return ret;