Enabled byte swapping for audio track sources, added anti option -swab

trunk/libburn/libburn.h

@@ -849,6 +849,16 @@ int burn_session_remove_track(struct burn_session *s, struct burn_track *t);
 void burn_track_define_data(struct burn_track *t, int offset, int tail,
 			    int pad, int mode);
 
+
+/* ts A61024 */
+/** Define wether a track shall swap bytes of its input stream.
+    @param t The track to change
+    @param swap_source_bytes 0=do not swap, 1=swap byte pairs
+    @return 1=success , 0=unacceptable value
+*/
+int burn_track_set_byte_swap(struct burn_track *t, int swap_source_bytes);
+
+
 /** Set the ISRC details for a track
 	@param t The track to change
 	@param country the 2 char country code. Each character must be

trunk/libburn/sector.c

@@ -79,7 +79,7 @@ static int get_outmode(struct burn_write_opts *o)
 
 static void get_bytes(struct burn_track *track, int count, unsigned char *data)
 {
-	int valid, shortage, curr;
+	int valid, shortage, curr, i, tr;
 
 /* no track pointer means we're just generating 0s */
 	if (!track) {
@@ -147,9 +147,17 @@ static void get_bytes(struct burn_track *track, int count, unsigned char *data)
 			curr += valid;
 		}
 	}
-	if (!shortage)
-		return;
-	memset(data + curr, 0, shortage);
+ex:;
+	/* ts A61024 : general finalizing processing */ 
+	if(shortage)
+		memset(data + curr, 0, shortage); /* this is old icculus.org */
+	if (track->swap_source_bytes == 1) {
+		for (i = 1; i < count; i += 2) {
+			tr = data[i];
+			data[i] = data[i-1];
+			data[i-1] = tr;
+		}
+	}
 }
 
 /* ts A61009 : seems to hand out sector start pointer in opts->drive->buffer

trunk/libburn/structure.c

@@ -118,6 +118,9 @@ struct burn_track *burn_track_create(void)
 	t->postgap = 0;
 	t->pregap1 = 0;
 	t->pregap2 = 0;
+
+	/* ts A61024 */
+	t->swap_source_bytes = 0;
 	return t;
 }
 
@@ -227,6 +230,17 @@ void burn_track_define_data(struct burn_track *t, int offset, int tail,
 	t->tail = tail;
 }
 
+
+/* ts A61024 */
+int burn_track_set_byte_swap(struct burn_track *t, int swap_source_bytes)
+{
+	if(swap_source_bytes!=0 && swap_source_bytes!=1)
+		return 0;
+	t->swap_source_bytes = swap_source_bytes;
+	return 1;
+}
+
+
 void burn_track_set_isrc(struct burn_track *t, char *country, char *owner,
 			 unsigned char year, unsigned int serial)
 {

trunk/libburn/structure.h

@@ -41,6 +41,10 @@ struct burn_track
 	/** The track contains a postgap */
 	int postgap;
 	struct isrc isrc;
+
+	/* ts A61024 */
+	/** Byte swapping on source data stream : 0=none , 1=pairwise */
+	int swap_source_bytes;
 };
 
 struct burn_session