git-svn-id: https://svn.musicpd.org/mpd/trunk@194 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/mp3_decode.c

@@ -38,6 +38,7 @@
 
 #define READ_BUFFER_SIZE	40960
 
+#define DECODE_SKIP		-3
 #define DECODE_BREAK		-2
 #define DECODE_CONT		-1
 #define DECODE_OK		0
@@ -180,6 +181,7 @@ int decodeNextFrameHeader(mp3DecodeData * data) {
 		}
 	}
 	if(mad_header_decode(&data->frame.header,&data->stream)) {
+		if((data->stream).error==MAD_ERROR_LOSTSYNC) return DECODE_SKIP;
 		if(MAD_RECOVERABLE((data->stream).error)) return DECODE_CONT;
 		else {
 			if((data->stream).error==MAD_ERROR_BUFLEN) return DECODE_CONT;
@@ -204,6 +206,7 @@ int decodeNextFrame(mp3DecodeData * data) {
 		}
 	}
 	if(mad_frame_decode(&data->frame,&data->stream)) {
+		if((data->stream).error==MAD_ERROR_LOSTSYNC) return DECODE_SKIP;
 		if(MAD_RECOVERABLE((data->stream).error)) return DECODE_CONT;
 		else {
 			if((data->stream).error==MAD_ERROR_BUFLEN) return DECODE_CONT;
@@ -282,14 +285,23 @@ int decodeFirstFrame(mp3DecodeData * data) {
 	struct stat filestat;
 	struct xing xing;
 	int ret;
+	int skip;
 
 	memset(&xing,0,sizeof(struct xing));
 	xing.flags = 0;
 
+	skip = 0;
+	while(1) {
+		printf("HERE 1\n");
 		while((ret = decodeNextFrameHeader(data))==DECODE_CONT);
-	if(ret!=DECODE_OK) return -1;
+		if(ret==DECODE_SKIP) skip = 1;
+		if(ret==DECODE_BREAK) return -1;
 		while((ret = decodeNextFrame(data))==DECODE_CONT);
-	if(ret!=DECODE_OK) return -1;
+		if(ret==DECODE_BREAK) return -1;
+		if(ret==DECODE_SKIP) skip = 1;
+		else if(skip && ret==DECODE_OK) skip = 0;
+		else if(!skip && ret==DECODE_OK) break;
+	}
 
 	if(parse_xing(&xing,data->stream.anc_ptr,data->stream.anc_bitlen)) {
 		if(xing.flags & XING_FRAMES) {
@@ -464,9 +476,11 @@ int mp3Read(mp3DecodeData * data, Buffer * cb, DecoderControl * dc) {
 	}
 
 	if(data->muteFrame) {
-		while((ret=decodeNextFrameHeader(data))==DECODE_CONT);
+		while((ret=decodeNextFrameHeader(data))==DECODE_CONT || 
+				ret==DECODE_SKIP);
 	}
-	else while((ret=decodeNextFrame(data))==DECODE_CONT);
+	else while((ret=decodeNextFrame(data))==DECODE_CONT || 
+			ret==DECODE_SKIP);
 	
 	return ret;
 }

src/pcm_utils.c

@@ -96,8 +96,7 @@ void pcm_add(char * buffer1, char * buffer2, size_t bufferSize1,
 	switch(format->bits) {
 	case 16:
 		while(bufferSize1>0 && bufferSize2>0) {
-			temp32 = *buffer16_1;
-			temp32+= *buffer16_2;
+			temp32 = *buffer16_1+*buffer16_2;
 			*buffer16_1 = temp32>32767 ? 32767 : 
 					(temp32<-32768 ? -32768 : temp32);
 			buffer16_1++;
@@ -105,12 +104,11 @@ void pcm_add(char * buffer1, char * buffer2, size_t bufferSize1,
 			bufferSize1-=2;
 			bufferSize2-=2;
 		}
-		if(bufferSize2>0) memcpy(buffer8_1,buffer8_2,bufferSize2);
+		if(bufferSize2>0) memcpy(buffer16_1,buffer16_2,bufferSize2);
 		break;
 	case 8:
 		while(bufferSize1>0 && bufferSize2>0) {
-			temp32 = *buffer8_1;
-			temp32+= *buffer8_2;
+			temp32 = *buffer8_1+*buffer8_2;
 			*buffer8_1 = temp32>127 ? 127 : 
 					(temp32<-128 ? -128 : temp32);
 			buffer8_1++;