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small bugfix in the new optimized head sync code 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@548 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi_esp 2001-04-20 16:43:17 +00:00
parent cd663cd2f2
commit 09b1f74810
1 changed files with 15 additions and 4 deletions
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19
demux_mpg.c
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@ -3,12 +3,17 @@
//#define MAX_PS_PACKETSIZE 2048
#define MAX_PS_PACKETSIZE (224*1024)
static int mpeg_pts_error=0;
static unsigned int read_mpeg_timestamp(stream_t *s,int c){
int d,e;
unsigned int pts;
d=stream_read_word(s);
e=stream_read_word(s);
if( ((c&1)!=1) || ((d&1)!=1) || ((e&1)!=1) ) return 0; // invalid pts
if( ((c&1)!=1) || ((d&1)!=1) || ((e&1)!=1) ){
++mpeg_pts_error;
return 0; // invalid pts
}
pts=(((c>>1)&7)<<30)|((d>>1)<<15)|(e>>1);
if(verbose>=3) printf("{%d}",pts);
return pts;
@ -49,6 +54,8 @@ static int demux_mpg_read_packet(demuxer_t *demux,int id){
return -2; // invalid packet !!!!!!
}
mpeg_pts_error=0;
while(len>0){ // Skip stuFFing bytes
c=stream_read_char(demux->stream);--len;
if(c!=0xFF)break;
@ -146,6 +153,7 @@ static int demux_mpg_read_packet(demuxer_t *demux,int id){
return -1; // invalid packet !!!!!!
}
}
if(mpeg_pts_error) printf(" {PTS_err:%d} \n",mpeg_pts_error);
if(verbose>=3) printf(" => len=%d\n",len);
// if(len<=0 || len>MAX_PS_PACKETSIZE) return -1; // Invalid packet size
@ -215,8 +223,10 @@ int ret=0;
do{
demux->filepos=stream_tell(demux->stream);
head=stream_read_dword(demux->stream);
demux->filepos-=skipped;
while(1){
if((head&0xFFFFFF00)!=0x100){
// sync...
demux->filepos-=skipped;
while(1){
int c=stream_read_char(demux->stream);
if(c<0) break; //EOF
head<<=8;
@ -227,8 +237,9 @@ do{
}
head|=c;
break;
}
demux->filepos+=skipped;
}
demux->filepos+=skipped;
if(stream_eof(demux->stream)) break;
// sure: head=0x000001XX
if(verbose>=4) printf("*** head=0x%X\n",head);