/* build the comment header packet from the passed metadata */
int theora_encode_comment(theora_comment *tc, ogg_packet *op)
{
const char *vendor = theora_version_string();
const int vendor_length = strlen(vendor);
oggpack_buffer *opb;
#ifndef LIBOGG2
opb = _ogg_malloc(sizeof(oggpack_buffer));
oggpackB_writeinit(opb);
#else
opb = _ogg_malloc(oggpack_buffersize());
oggpackB_writeinit(opb, ogg_buffer_create());
#endif
oggpackB_write(opb, 0x81, 8);
_tp_writebuffer(opb, "theora", 6);
_tp_writelsbint(opb, vendor_length);
_tp_writebuffer(opb, vendor, vendor_length);
_tp_writelsbint(opb, tc->comments);
if(tc->comments){
int i;
for(i=0;i<tc->comments;i++){
if(tc->user_comments[i]){
_tp_writelsbint(opb,tc->comment_lengths[i]);
_tp_writebuffer(opb,tc->user_comments[i],tc->comment_lengths[i]);
}else{
oggpackB_write(opb,0,32);
}
}
}
op->bytes=oggpack_bytes(opb);
#ifndef LIBOGG2
/* So we're expecting the application will free this? */
op->packet=_ogg_malloc(oggpack_bytes(opb));
memcpy(op->packet, oggpack_get_buffer(opb), oggpack_bytes(opb));
oggpack_writeclear(opb);
#else
op->packet = oggpack_writebuffer(opb);
/* When the application puts op->packet into a stream_state object,
it becomes the property of libogg2's internal memory management. */
#endif
_ogg_free(opb);
op->b_o_s=0;
op->e_o_s=0;
op->packetno=0;
op->granulepos=0;
return (0);
}
/* build the comment header packet from the passed metadata */
int theora_encode_comment(theora_comment *tc, ogg_packet *op)
{
const char *vendor = theora_version_string();
const int vendor_length = strlen(vendor);
oggpack_buffer *opb;
opb = _ogg_malloc(sizeof(oggpack_buffer));
oggpackB_writeinit(opb);
oggpackB_write(opb, 0x81, 8);
_tp_writebuffer(opb, "theora", 6);
_tp_writelsbint(opb, vendor_length);
_tp_writebuffer(opb, vendor, vendor_length);
_tp_writelsbint(opb, tc->comments);
if(tc->comments){
int i;
for(i=0;i<tc->comments;i++){
if(tc->user_comments[i]){
_tp_writelsbint(opb,tc->comment_lengths[i]);
_tp_writebuffer(opb,tc->user_comments[i],tc->comment_lengths[i]);
}else{
oggpackB_write(opb,0,32);
}
}
}
op->bytes=oggpack_bytes(opb);
/* So we're expecting the application will free this? */
op->packet=_ogg_malloc(oggpack_bytes(opb));
memcpy(op->packet, oggpack_get_buffer(opb), oggpack_bytes(opb));
oggpack_writeclear(opb);
_ogg_free(opb);
op->b_o_s=0;
op->e_o_s=0;
op->packetno=0;
op->granulepos=0;
return (0);
}
