static int vox_seek(struct ast_filestream *fs, long sample_offset, int whence)
{
- return -1;
+ off_t offset=0,min,cur,max,distance;
+
+ min = 0;
+ cur = lseek(fs->fd, 0, SEEK_CUR);
+ max = lseek(fs->fd, 0, SEEK_END);
+ /* have to fudge to frame here, so not fully to sample */
+ distance = sample_offset/2;
+ if(whence == SEEK_SET)
+ offset = distance;
+ else if(whence == SEEK_CUR || whence == SEEK_FORCECUR)
+ offset = distance + cur;
+ else if(whence == SEEK_END)
+ offset = max - distance;
+ if (whence != SEEK_FORCECUR) {
+ offset = (offset > max)?max:offset;
+ offset = (offset < min)?min:offset;
+ }
+ return lseek(fs->fd, offset, SEEK_SET);
}
static int vox_trunc(struct ast_filestream *fs)
{
- return -1;
+ return ftruncate(fs->fd, lseek(fs->fd,0,SEEK_CUR));
}
static long vox_tell(struct ast_filestream *fs)
{
- return -1;
+ off_t offset;
+ offset = lseek(fs->fd, 0, SEEK_CUR);
+ return offset;
}
int load_module()