MT#55283 keep number of slots if media slots is unset

Closes #2208

Change-Id: I00b7f2a17e13318b0628f0b2a06284e5b761e6dc
(cherry picked from commit e891e0a219)

daemon/recording.c

@@ -1047,16 +1047,17 @@ static void setup_stream_proc(struct packet_stream *stream) {
 
 	// If no slots have been specified or someone has tried to use slott 0 then we set the variables up so that the mix
 	// channels will be used in sequence as each SSRC is seen. (see mix.c for the algorithm)
-	if(call->media_rec_slots < 1 || media->media_rec_slot < 1) {
+	if(call->media_rec_slots < 1) {
 		media_rec_slot = 1;
 		media_rec_slots = 1;
 	} else {
-		media_rec_slot = media->media_rec_slot;
+		media_rec_slot = media->media_rec_slot < 1 ? 1 : media->media_rec_slot;
 		media_rec_slots = call->media_rec_slots;
 	}
 
-	if(media_rec_slot > media_rec_slots) {
-		ilog(LOG_ERR, "slot %i is greater than the total number of slots available %i, setting to slot %i", media->media_rec_slot, call->media_rec_slots, media_rec_slots);
+	if (media_rec_slot > media_rec_slots) {
+		ilog(LOG_ERR, "slot %i is greater than the total number of slots available %i, setting to slot %i",
+				media->media_rec_slot, call->media_rec_slots, media_rec_slots);
 		media_rec_slot = media_rec_slots;
 	}