static int seekCallback(void *user_handle, long offset, int whence)
{
BufferQueue *bq = (BufferQueue *)user_handle;
int64_t pos;
switch (whence) {
case SEEK_SET:
pos = offset;
break;
case SEEK_CUR:
pos = bq_tell(bq) + offset;
break;
case SEEK_END: // not implemented
default:
return -1;
}
if (bq_seek(bq, pos)) {
printf("Buffer seek failure in ogg demuxer; %lld (%ld %d)\n", pos, offset, whence);
return -1;
} else {
return (long)pos;
}
}
int64_t bq_headroom(BufferQueue *queue) {
return bq_end(queue) - bq_tell(queue);
}
static long tellCallback(void *user_handle)
{
BufferQueue *bq = (BufferQueue *)user_handle;
return (long)bq_tell(bq);
}