static int _vorbis_unpack_comment(vorbis_comment *vc,oggpack_buffer *opb){
int i;
int vendorlen=oggpack_read(opb,32);
if(vendorlen<0)goto err_out;
vc->vendor=(char *)_ogg_calloc(vendorlen+1,1);
_v_readstring(opb,vc->vendor,vendorlen);
vc->comments=oggpack_read(opb,32);
if(vc->comments<0)goto err_out;
vc->user_comments=(char **)_ogg_calloc(vc->comments+1,sizeof(*vc->user_comments));
vc->comment_lengths=(int *)_ogg_calloc(vc->comments+1, sizeof(*vc->comment_lengths));
for(i=0;i<vc->comments;i++){
int len=oggpack_read(opb,32);
if(len<0)goto err_out;
vc->comment_lengths[i]=len;
vc->user_comments[i]=(char *)_ogg_calloc(len+1,1);
_v_readstring(opb,vc->user_comments[i],len);
}
if(oggpack_read(opb,1)!=1)goto err_out; /* EOP check */
return(0);
err_out:
vorbis_comment_clear(vc);
return(OV_EBADHEADER);
}
static int _vorbis_unpack_comment(vorbis_comment *vc,oggpack_buffer *opb){
int i;
int vendorlen;
vendorlen=oggpack_read(opb,32);
if(vendorlen<0)goto err_out;
if(vendorlen>opb->storage-oggpack_bytes(opb))goto err_out;
vc->vendor=(char *)_ogg_calloc(vendorlen+1,1);
if(vc->vendor==NULL)goto err_out;
_v_readstring(opb,vc->vendor,vendorlen);
i=oggpack_read(opb,32);
if(i<0||i>=INT_MAX||i>(opb->storage-oggpack_bytes(opb))>>2)goto err_out;
vc->user_comments=(char **)_ogg_calloc(i+1,sizeof(*vc->user_comments));
vc->comment_lengths=(int *)_ogg_calloc(i+1, sizeof(*vc->comment_lengths));
if(vc->user_comments==NULL||vc->comment_lengths==NULL)goto err_out;
vc->comments=i;
for(i=0;i<vc->comments;i++){
int len=oggpack_read(opb,32);
if(len<0||len>opb->storage-oggpack_bytes(opb))goto err_out;
vc->comment_lengths[i]=len;
vc->user_comments[i]=(char *)_ogg_calloc(len+1,1);
if(vc->user_comments[i]==NULL){
vc->comments=i;
goto err_out;
}
_v_readstring(opb,vc->user_comments[i],len);
}
if(oggpack_read(opb,1)!=1)goto err_out; /* EOP check */
return(0);
err_out:
vorbis_comment_clear(vc);
return(OV_EBADHEADER);
}
static int BURGERCALL _vorbis_unpack_comment(vorbis_comment *vc,oggpack_buffer *opb){
int i;
int vendorlen=oggpack_read(opb,32);
if(vendorlen>=0) {
vc->vendor=static_cast<char *>(AllocAPointerClear(vendorlen+1));
_v_readstring(opb,vc->vendor,vendorlen);
vc->comments=oggpack_read(opb,32);
if(vc->comments>=0) {
vc->user_comments=static_cast<char **>(AllocAPointerClear((vc->comments+1)*sizeof(*vc->user_comments)));
vc->comment_lengths=static_cast<int *>(AllocAPointerClear((vc->comments+1)*sizeof(*vc->comment_lengths)));
for(i=0;i<vc->comments;i++){
int len=oggpack_read(opb,32);
if(len<0)goto err_out;
vc->comment_lengths[i]=len;
vc->user_comments[i]=static_cast<char *>(AllocAPointerClear(len+1));
_v_readstring(opb,vc->user_comments[i],len);
}
if (oggpack_read1(opb)==1) {/* EOP check */
return(0);
}
}
}
err_out:
vorbis_comment_clear(vc);
return(OV_EBADHEADER);
}
TarkinError
tarkin_synthesis_headerin (TarkinInfo * vi, TarkinComment * vc, ogg_packet * op)
{
oggpack_buffer opb;
if (op) {
oggpack_readinit (&opb, op->packet, op->bytes);
/* Which of the three types of header is this? */
/* Also verify header-ness, tarkin */
{
char buffer[6];
int packtype = oggpack_read (&opb, 8);
memset (buffer, 0, 6);
_v_readstring (&opb, buffer, 6);
if (memcmp (buffer, "tarkin", 6)) {
/* not a tarkin header */
return (-TARKIN_NOT_TARKIN);
}
switch (packtype) {
case 0x01: /* least significant *bit* is read first */
if (!op->b_o_s) {
/* Not the initial packet */
return (-TARKIN_BAD_HEADER);
}
if (vi->inter.numerator != 0) {
/* previously initialized info header */
return (-TARKIN_BAD_HEADER);
}
return (_tarkin_unpack_info (vi, &opb));
case 0x03: /* least significant *bit* is read first */
if (vi->inter.denominator == 0) {
/* um... we didn't get the initial header */
return (-TARKIN_BAD_HEADER);
}
return (_tarkin_unpack_comment (vc, &opb));
case 0x05: /* least significant *bit* is read first */
if (vi->inter.numerator == 0 || vc->vendor == NULL) {
/* um... we didn;t get the initial header or comments yet */
return (-TARKIN_BAD_HEADER);
}
return (_tarkin_unpack_layer_desc (vi, &opb));
default:
/* Not a valid tarkin header type */
return (-TARKIN_BAD_HEADER);
break;
}
}
}
return (-TARKIN_BAD_HEADER);
}
static int
_tarkin_unpack_comment (TarkinComment * vc, oggpack_buffer * opb)
{
int i;
int vendorlen = oggpack_read (opb, 32);
#ifdef DBG_OGG
printf ("dbg_ogg: Decoding comment: ");
#endif
if (vendorlen < 0)
goto err_out;
vc->vendor = _ogg_calloc (vendorlen + 1, 1);
_v_readstring (opb, vc->vendor, vendorlen);
vc->comments = oggpack_read (opb, 32);
if (vc->comments < 0)
goto err_out;
vc->user_comments =
_ogg_calloc (vc->comments + 1, sizeof (*vc->user_comments));
vc->comment_lengths =
_ogg_calloc (vc->comments + 1, sizeof (*vc->comment_lengths));
for (i = 0; i < vc->comments; i++) {
int len = oggpack_read (opb, 32);
if (len < 0)
goto err_out;
vc->comment_lengths[i] = len;
vc->user_comments[i] = _ogg_calloc (len + 1, 1);
_v_readstring (opb, vc->user_comments[i], len);
}
if (oggpack_read (opb, 1) != 1)
goto err_out; /* EOP check */
#ifdef DBG_OGG
printf ("Success, read %d comments\n", vc->comments);
#endif
return (0);
err_out:
#ifdef DBG_OGG
printf ("Failed\n");
#endif
tarkin_comment_clear (vc);
return (-TARKIN_BAD_HEADER);
}
int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,ogg_packet *op){
oggpack_buffer opb;
if(op){
oggpack_readinit(&opb,op->packet);
/* Which of the three types of header is this? */
/* Also verify header-ness, vorbis */
{
char buffer[6];
int packtype=oggpack_read(&opb,8);
memset(buffer,0,6);
_v_readstring(&opb,buffer,6);
if(memcmp(buffer,"vorbis",6)){
/* not a vorbis header */
return(OV_ENOTVORBIS);
}
switch(packtype){
case 0x01: /* least significant *bit* is read first */
if(!op->b_o_s){
/* Not the initial packet */
return(OV_EBADHEADER);
}
if(vi->rate!=0){
/* previously initialized info header */
return(OV_EBADHEADER);
}
return(_vorbis_unpack_info(vi,&opb));
case 0x03: /* least significant *bit* is read first */
if(vi->rate==0){
/* um... we didn't get the initial header */
return(OV_EBADHEADER);
}
return(_vorbis_unpack_comment(vc,&opb));
case 0x05: /* least significant *bit* is read first */
if(vi->rate==0 || vc->vendor==NULL){
/* um... we didn;t get the initial header or comments yet */
return(OV_EBADHEADER);
}
return(_vorbis_unpack_books(vi,&opb));
default:
/* Not a valid vorbis header type */
return(OV_EBADHEADER);
break;
}
}
}
return(OV_EBADHEADER);
}
int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,ogg_packet *op,unsigned int newpack)
{
int packtype;
oggpack_buffer opb;
char buffer[6];
if(op){
if(newpack)
oggpack_readinit(&opb,op->packet,op->bytes);
packtype=oggpack_read24(&opb,8);
_v_readstring(&opb,buffer,6);
if(memcmp(buffer,"vorbis",6)!=0)
return(OV_ENOTVORBIS);
switch(packtype){
case 0x01:
if(!op->b_o_s)
return(OV_EBADHEADER);
if(vi->rate!=0)
return(OV_EBADHEADER);
return(_vorbis_unpack_info(vi,&opb));
case 0x03:
if(vi->rate==0)
return(OV_EBADHEADER);
#ifdef MPXPLAY
if(!newpack)
_vorbis_skip_comment(&opb);
return(0); // comments are readed at Ogg demuxing in Mpxplay
#else
return(_vorbis_unpack_comment(vc,&opb));
#endif
case 0x05:
if(vi->rate==0)
return(OV_EBADHEADER);
#ifndef MPXPLAY
if(vc->vendor==NULL)
return(OV_EBADHEADER);
#endif
return(_vorbis_unpack_books(vi,&opb));
default:
return(OV_EBADHEADER);
break;
}
}
return(OV_EBADHEADER);
}
static int _vorbis_unpack_comment(vorbis_comment *vc,oggpack_buffer *opb){
int vendorlen;
vendorlen=oggpack_read(opb,32);
if(vendorlen<0)goto err_out;
if(vendorlen>opb->storage-oggpack_bytes(opb))goto err_out;
vc->vendor=(char *)_ogg_calloc(vendorlen+1,1);
if(vc->vendor==NULL)goto err_out;
_v_readstring(opb,vc->vendor,vendorlen);
vc->comments=0;
/* ROCKBOX: the meat of this function was deleted as we don't need it */
return(0);
err_out:
vorbis_comment_clear(vc);
return(OV_EBADHEADER);
}
/* Is this packet a vorbis ID header? */
int vorbis_synthesis_idheader(ogg_packet *op){
oggpack_buffer opb;
char buffer[6];
if(op){
oggpack_readinit(&opb,op->packet,op->bytes);
if(!op->b_o_s)
return(0); /* Not the initial packet */
if(oggpack_read(&opb,8) != 1)
return 0; /* not an ID header */
memset(buffer,0,6);
_v_readstring(&opb,buffer,6);
if(memcmp(buffer,"vorbis",6))
return 0; /* not vorbis */
return 1;
}
return 0;
}
