use unsigned integers in outputBuffer.c

src/outputBuffer.c

@@ -118,7 +118,7 @@ int sendDataToOutputBuffer(OutputBuffer * cb, InputStream * inStream,
 
 	while (datalen) {
 		if (currentChunk != cb->end) {
-			int next = cb->end + 1;
+			unsigned int next = cb->end + 1;
 			if (next >= buffered_chunks) {
 				next = 0;
 			}

src/outputBuffer.h

@@ -38,8 +38,8 @@ typedef struct _OutputBuffer {
 	mpd_uint16 *volatile chunkSize;
 	mpd_uint16 *volatile bitRate;
 	float *volatile times;
-	mpd_sint16 volatile begin;
-	mpd_sint16 volatile end;
+	mpd_uint16 volatile begin;
+	mpd_uint16 volatile end;
 	AudioFormat audioFormat;
 	ConvState convState;
 	MetadataChunk metadataChunks[BUFFERED_METACHUNKS];