Hello everybody ! I've just added a resampling function to my code thanks to the excellent work of Erik de Castro Lopo (thanks a lot !). Combined with libsndfile (thanks again) it is really easy to load any sound file I want. But I'd like to make sure I'm using it correctly. I process my input data in one pass using src_simple() and I have to compute the length of the output data buffer beforehand. So I did somehting like this : out_len = (long int) ceil((double) in_len * ratio); It seems that my output buffer is always one frame too big (I checked this by reading the output_frames_gen field of the SRC_DATA structure after the processing is done). Is it safe to assume that using floor() instead of ceil() will not lead to a too short output buffer in some cases ? I can live with wasting a malloced float but I'd like to be sure it cannot be done in a prettier way. Thanks. -- David