some fixes to metadata stuff

src/decode.c

@@ -388,17 +388,6 @@ int decoderInit(PlayerControl * pc, OutputBuffer * cb, DecoderControl * dc) {
 	return 0;
 }
 
-#define copyMetadata() { \
-	memcpy(pc->metadata, metadata, DECODE_METADATA_LENGTH); \
-	pc->name = name; \
-	pc->title = title; \
-	pc->artist = artist; \
-	pc->album = album; \
-	gotMetadata = 0; \
-	pc->metadataState = PLAYER_METADATA_STATE_READ; \
-	kill(getppid(), SIGUSR1); \
-}
-
 void handleMetadata(OutputBuffer * cb, PlayerControl * pc, int * previous,
 		int * currentChunkSent, MetadataChunk * currentChunk) 
 {

src/outputBuffer.c

@@ -147,11 +147,19 @@ int sendDataToOutputBuffer(OutputBuffer * cb, InputStream * inStream,
 
 int copyMpdTagToOutputBuffer(OutputBuffer * cb, MpdTag * tag) {
 	int nextChunk;
+	static MpdTag * last = NULL;
 
 	printf("copyMpdTagToOB called\n");
 
         if(!cb->acceptMetadata || !tag) {
 		sendMetaChunk = 0;
+		if(last) free(last);
+		last = NULL;
+		return 0;
+	}
+
+	if(last && mpdTagsAreEqual(last, tag)) {
+		printf("same as last\n");
 		return 0;
 	}
 
@@ -165,6 +173,9 @@ int copyMpdTagToOutputBuffer(OutputBuffer * cb, MpdTag * tag) {
 
 	printMpdTag(stdout, tag);
 
+	if(last) freeMpdTag(last);
+	last = mpdTagDup(tag);
+
 	copyMpdTagToMetadataChunk(tag, &(cb->metadataChunks[currentMetaChunk]));
 
 	cb->metaChunkSet[nextChunk] = 1;

src/player.c

@@ -470,6 +470,7 @@ void playerCycleLogFiles() {
 Song * playerCurrentDecodeSong() {
         static Song * song = NULL;
         static MetadataChunk * prev = NULL;
+	Song * ret = NULL;
 	PlayerControl * pc = &(getPlayerData()->playerControl);
 
         if(pc->metadataState == PLAYER_METADATA_STATE_READ && 
@@ -477,19 +478,19 @@ Song * playerCurrentDecodeSong() {
                         || (!prev || memcmp(prev, &(pc->metadataChunk), 
 			sizeof(MetadataChunk))))) 
         {
-		printf("metadata in the PLAYER!\n");
                 if(prev) free(prev);
                 prev = malloc(sizeof(MetadataChunk));
 		memcpy(prev, &(pc->metadataChunk), sizeof(MetadataChunk));
-                resetPlayerMetadata();
                 if(song) freeJustSong(song);
                 song = newNullSong();
                 if(song->utf8url) free(song->utf8url);
                 song->utf8url = strdup(pc->currentUrl);
 		song->tag = metadataChunkToMpdTagDup(prev);
                 validateUtf8Tag(song->tag);
-                return song;
+                ret =  song;
         }
 
-        return NULL;
+        resetPlayerMetadata();
+
+        return ret;
 }