static int
read_buf_byte (struct mpstr *mp)
{
unsigned int b;
int pos;
pos = mp->tail->pos;
while (pos >= mp->tail->size)
{
remove_buf (mp);
pos = mp->tail->pos;
if (!mp->tail)
{
fprintf (stderr, "Fatal error!\n");
exit (1);
}
}
b = mp->tail->pnt[pos];
mp->bsize--;
mp->tail->pos++;
return b;
}
static int read_buf_byte(struct mpstr *mp)
{
unsigned int b;
int pos;
pos = mp->tail->pos;
while(pos >= mp->tail->size) {
remove_buf(mp);
if(!mp->tail) {
#ifndef BE_QUIET
fprintf(stderr,"Fatal error!\n");
#endif
return 0;
}
pos = mp->tail->pos;
}
b = mp->tail->pnt[pos];
mp->bsize--;
mp->tail->pos++;
return b;
}
DLLEXPORT INT MpgLib_Flush(VOID)
{
while (mp.head!=NULL && mp.tail!=NULL)
{
remove_buf(&mp);
}
mp.bsize=0;
return (0);
}
int
decodeMP3 (struct mpstr *mp, char *in, int isize, char *out,
int osize, int *done)
{
int len;
gmp = mp;
if (osize < 4608)
{
fprintf (stderr, "To less out space\n");
return MP3_ERR;
}
if (in)
{
if (addbuf (mp, in, isize) == NULL)
{
return MP3_ERR;
}
}
/* First decode header */
if (mp->framesize == 0)
{
if (mp->bsize < 4)
{
return MP3_NEED_MORE;
}
read_head (mp);
decode_header (&mp->fr, mp->header);
mp->framesize = mp->fr.framesize;
}
if (mp->fr.framesize > mp->bsize)
return MP3_NEED_MORE;
wordpointer = mp->bsspace[mp->bsnum] + 512;
mp->bsnum = (mp->bsnum + 1) & 0x1;
bitindex = 0;
len = 0;
while (len < mp->framesize)
{
int nlen;
int blen = mp->tail->size - mp->tail->pos;
if ((mp->framesize - len) <= blen)
{
nlen = mp->framesize - len;
}
else
{
nlen = blen;
}
memcpy (wordpointer + len, mp->tail->pnt + mp->tail->pos, nlen);
len += nlen;
mp->tail->pos += nlen;
mp->bsize -= nlen;
if (mp->tail->pos == mp->tail->size)
{
remove_buf (mp);
}
}
*done = 0;
if (mp->fr.error_protection)
getbits (16);
switch (mp->fr.lay)
{
case 3:
do_layer3 (&mp->fr, (unsigned char *) out, done);
break;
}
mp->fsizeold = mp->framesize;
mp->framesize = 0;
return MP3_OK;
}
int decodeMP3(struct mpstr *mp, char *in, int isize,
char *out, int osize, int *done)
{
int len;
if(osize < 4608) {
#ifndef BE_QUIET
fprintf(stderr,"To less out space\n");
#endif
return MP3_ERR;
}
if(in) {
if(addbuf(mp, in, isize) == NULL) {
return MP3_ERR;
}
}
/* First decode header */
if(mp->framesize == 0) {
if(mp->bsize < 4) {
return MP3_NEED_MORE;
}
read_head(mp);
if(mp->tail)
mp->ndatabegin = mp->tail->pos - 4;
if (decode_header(mp, &mp->fr,mp->header) <= 0 )
return MP3_ERR;
mp->framesize = mp->fr.framesize;
}
/* printf(" fr.framesize = %i \n",mp->fr.framesize);
printf(" bsize = %i \n",mp->bsize);
*/
if(mp->fr.framesize > mp->bsize) {
return MP3_NEED_MORE;
}
mp->psd.wordpointer = mp->bsspace[mp->bsnum] + 512;
mp->bsnum = (mp->bsnum + 1) & 0x1;
mp->psd.bitindex = 0;
len = 0;
while(len < mp->framesize) {
int nlen;
int blen = mp->tail->size - mp->tail->pos;
if( (mp->framesize - len) <= blen) {
nlen = mp->framesize-len;
}
else {
nlen = blen;
}
memcpy(mp->psd.wordpointer+len,mp->tail->pnt+mp->tail->pos,nlen);
len += nlen;
mp->tail->pos += nlen;
mp->bsize -= nlen;
if(mp->tail->pos == mp->tail->size) {
remove_buf(mp);
}
}
*done = 0;
if(mp->fr.error_protection)
getbits(&mp->psd, 16);
// FOR mpglib.dll: see if error and return it
if ((&mp->fr)->do_layer(&mp->psd, mp, &mp->fr, (unsigned char*) out, done) < 0)
return MP3_ERR;
mp->fsizeold = mp->framesize;
mp->framesize = 0;
return MP3_OK;
}
