Halt playback instead of decrefing the sound in mixer_quit

Author: oddbookworm

src_c/mixer.c

@@ -517,7 +517,13 @@ mixer_quit(PyObject *self, PyObject *_null)
 
         if (channeldata) {
             for (i = 0; i < numchanneldata; ++i) {
-                Py_XDECREF(channeldata[i].sound);
+                if (channeldata[i].queue) {
+                    Mix_HaltGroup(
+                        (int)(intptr_t)pgSound_AsChunk(channeldata[i].sound));
+                }
+                else {
+                    Mix_HaltGroup(-1);
+                }
                 Py_XDECREF(channeldata[i].queue);
             }
             free(channeldata);