67   sox_format_t* ft = (sox_format_t*)ft_data;  in callback_read()  local
68   size_t ret = lsx_readbuf(ft, ptr, size * nmemb);  in callback_read()
74   sox_format_t* ft = (sox_format_t*)ft_data;  in callback_seek()  local
75   int ret = ft->seekable ? lsx_seeki(ft, (off_t)off, whence) : -1;  in callback_seek()
90   sox_format_t* ft = (sox_format_t*)ft_data;  in callback_tell()  local
91   return lsx_tell(ft);  in callback_tell()
104 static int startread(sox_format_t * ft)  in startread()  argument
106   priv_t * vb = (priv_t *) ft->priv;  in startread()
122   if (ov_open_callbacks(ft, vb->vf, NULL, (size_t) 0, callbacks) < 0) {  in startread()
123     lsx_fail_errno(ft, SOX_EHDR, "Input not an Ogg Vorbis audio stream");  in startread()
132   ft->signal.rate = vi->rate;  in startread()
133   ft->encoding.encoding = SOX_ENCODING_VORBIS;  in startread()
134   ft->signal.channels = vi->channels;  in startread()
140   if (ft->seekable)  in startread()
141     ft->signal.length = ov_pcm_total(vb->vf, -1) * ft->signal.channels;  in startread()
145     sox_append_comment(&ft->oob.comments, vc->user_comments[i]);  in startread()
194 static size_t read_samples(sox_format_t * ft, sox_sample_t * buf, size_t len)  in read_samples()  argument
196   priv_t * vb = (priv_t *) ft->priv;  in read_samples()
226 static int stopread(sox_format_t * ft)  in stopread()  argument
228   priv_t * vb = (priv_t *) ft->priv;  in stopread()
238 static int oe_write_page(ogg_page * page, sox_format_t * ft)  in oe_write_page()  argument
242   written = lsx_writebuf(ft, page->header, (size_t) page->header_len);  in oe_write_page()
243   written += lsx_writebuf(ft, page->body, (size_t) page->body_len);  in oe_write_page()
250 static int write_vorbis_header(sox_format_t * ft, vorbis_enc_t * ve)  in write_vorbis_header()  argument
259   vc.comments = sox_num_comments(ft->oob.comments);  in write_vorbis_header()
265       char * text = lsx_calloc(strlen(prepend) + strlen(ft->oob.comments[i]) + 1, sizeof(*text));  in write_vorbis_header()
267       if (!strchr(ft->oob.comments[i], '='))  in write_vorbis_header()
269       vc.user_comments[i] = strcat(text, ft->oob.comments[i]);  in write_vorbis_header()
284     if (!oe_write_page(&ve->og, ft))  in write_vorbis_header()
294 static int startwrite(sox_format_t * ft)  in startwrite()  argument
296   priv_t * vb = (priv_t *) ft->priv;  in startwrite()
301   ft->encoding.encoding = SOX_ENCODING_VORBIS;  in startwrite()
309   rate = ft->signal.rate;  in startwrite()
311     lsx_fail_errno(ft, SOX_EHDR,  in startwrite()
315   if (ft->encoding.compression != HUGE_VAL) {  in startwrite()
316     if (ft->encoding.compression < -1 || ft->encoding.compression > 10) {  in startwrite()
317       lsx_fail_errno(ft, SOX_EINVAL,  in startwrite()
321     quality = ft->encoding.compression;  in startwrite()
324   if (vorbis_encode_init_vbr(&ve->vi, ft->signal.channels, ft->signal.rate + .5, quality / 10))  in startwrite()
326     lsx_fail_errno(ft, SOX_EFMT, "libVorbis cannot encode this sample-rate or # of channels");  in startwrite()
335   if (write_vorbis_header(ft, ve) == HEADER_ERROR) {  in startwrite()
336     lsx_fail_errno(ft, SOX_EHDR,  in startwrite()
344 static size_t write_samples(sox_format_t * ft, const sox_sample_t * buf,  in write_samples()  argument
347   priv_t * vb = (priv_t *) ft->priv;  in write_samples()
349   size_t samples = len / ft->signal.channels;  in write_samples()
357     for (j = 0; j < ft->signal.channels; j++)  in write_samples()
358       buffer[j][i] = buf[i * ft->signal.channels + j]  in write_samples()
382         ret = oe_write_page(&ve->og, ft);  in write_samples()
395 static int stopwrite(sox_format_t * ft)  in stopwrite()  argument
397   priv_t * vb = (priv_t *) ft->priv;  in stopwrite()
401   write_samples(ft, NULL, (size_t) 0);  in stopwrite()
411 static int seek(sox_format_t * ft, uint64_t offset)  in seek()  argument
413   priv_t * vb = (priv_t *) ft->priv;  in seek()
415   return ov_pcm_seek(vb->vf, (ogg_int64_t)(offset / ft->signal.channels))? SOX_EOF:SOX_SUCCESS;  in seek()