use 16-bit signed ints for storing positions in the ring buffer

src/playerData.c

@@ -51,6 +51,11 @@ void initPlayerData() {
 
 	buffered_chunks = bufferSize/CHUNK_SIZE;
 
+	if(buffered_chunks >= 1<<15) {
+		ERROR("buffer size \"%i\" is too big\n",bufferSize);
+		exit(-1);
+	}
+
 	perc = strtod((getConf())[CONF_BUFFER_BEFORE_PLAY],&test);
 	if(*test!='%' || perc<0 || perc>100) {
 		ERROR("buffered before play \"%s\" is not a positive "

src/playerData.h

@@ -37,10 +37,10 @@ typedef struct _Buffer {
 	mpd_uint16 * chunkSize;
 	mpd_uint16 * bitRate;
 	float * times;
-	int begin;
-	int end;
-	int next;
-	int wrap;
+	mpd_sint16 begin;
+	mpd_sint16 end;
+	mpd_sint16 next;
+	mpd_sint8 wrap;
 	float totalTime;
 } Buffer;