ref: 080b6c7cb5a24ae80477e441b75ba6f3bdfc2cab
dir: /src/copy.c/
/* * July 5, 1991 * Copyright 1991 Lance Norskog And Sundry Contributors * This source code is freely redistributable and may be used for * any purpose. This copyright notice must be maintained. * Lance Norskog And Sundry Contributors are not responsible for * the consequences of using this software. */ /* * Sound Tools skeleton effect file. */ #include "st_i.h" #include "string.h" /* memcpy() */ /* * Process options */ int st_copy_getopts(eff_t effp, int n, char **argv) { if (n) { st_fail("Copy effect takes no options."); return (ST_EOF); } return (ST_SUCCESS); } /* * Start processing */ int st_copy_start(eff_t effp) { /* nothing to do */ /* stuff data into delaying effects here */ return (ST_SUCCESS); } /* * Read up to len samples from file. * Convert to signed longs. * Place in buf[]. * Return number of samples read. */ int st_copy_flow(eff_t effp, st_sample_t *ibuf, st_sample_t *obuf, st_size_t *isamp, st_size_t *osamp) { int done; done = ((*isamp < *osamp) ? *isamp : *osamp); memcpy(obuf, ibuf, done * sizeof(st_sample_t)); *isamp = *osamp = done; return (ST_SUCCESS); } /* * Do anything required when you stop reading samples. * Don't close input file! */ int st_copy_stop(eff_t effp) { /* nothing to do */ return (ST_SUCCESS); }