From 4893e94dae7ee3a2c126df6e82f732223becefce Mon Sep 17 00:00:00 2001
From: Warren Dukes <warren.dukes@gmail.com>
Date: Thu, 4 Mar 2004 20:45:49 +0000
Subject: [PATCH] git-svn-id: https://svn.musicpd.org/mpd/trunk@194
09075e82-0dd4-0310-85a5-a0d7c8717e4f
---
src/mp3_decode.c | 26 ++++++++++++++++++++------
src/pcm_utils.c | 8 +++-----
2 files changed, 23 insertions(+), 11 deletions(-)
diff --git a/src/mp3_decode.c b/src/mp3_decode.c
index 5defdcf30..e417e0a04 100644
--- a/src/mp3_decode.c
+++ b/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;
- while((ret = decodeNextFrameHeader(data))==DECODE_CONT);
- if(ret!=DECODE_OK) return -1;
- while((ret = decodeNextFrame(data))==DECODE_CONT);
- if(ret!=DECODE_OK) return -1;
+ skip = 0;
+ while(1) {
+ printf("HERE 1\n");
+ while((ret = decodeNextFrameHeader(data))==DECODE_CONT);
+ if(ret==DECODE_SKIP) skip = 1;
+ if(ret==DECODE_BREAK) return -1;
+ while((ret = decodeNextFrame(data))==DECODE_CONT);
+ 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;
}
diff --git a/src/pcm_utils.c b/src/pcm_utils.c
index 6f92969ac..e7d767972 100644
--- a/src/pcm_utils.c
+++ b/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++;