/* count ogg pages and get duration of the file */
for (i = 0; ogg_sync_pageseek(&oss, &op) > 0; i++) {
int this_pageno = ogg_page_pageno(&op);
/* count ogg pages and get duration of the file */
for (i = 0; ogg_sync_pageseek(&oss, &op) > 0; i++) {
int this_pageno = ogg_page_pageno(&op);