143 lines
4.9 KiB
C
143 lines
4.9 KiB
C
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/*************************************************************************/
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/* */
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/* Language Technologies Institute */
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/* Carnegie Mellon University */
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/* Copyright (c) 2003 */
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/* All Rights Reserved. */
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/* */
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/* Permission is hereby granted, free of charge, to use and distribute */
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/* this software and its documentation without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of this work, and to */
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/* permit persons to whom this work is furnished to do so, subject to */
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/* the following conditions: */
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/* 1. The code must retain the above copyright notice, this list of */
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/* conditions and the following disclaimer. */
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/* 2. Any modifications must be clearly marked as such. */
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/* 3. Original authors' names are not deleted. */
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/* 4. The authors' names are not used to endorse or promote products */
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/* derived from this software without specific prior written */
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/* permission. */
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/* */
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/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
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/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
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/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
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/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
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/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
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/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
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/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
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/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
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/* THIS SOFTWARE. */
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/* */
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/*************************************************************************/
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/* Author: Alan W Black (awb@cs.cmu.edu) */
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/* Date: November 2003 */
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/*************************************************************************/
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/* */
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/* Combine multichannel waveforms into a single waveform file */
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/*************************************************************************/
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#include <stdio.h>
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#include "cst_wave.h"
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#include "cst_tokenstream.h"
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#include "cst_args.h"
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float decode_time(const char *ctime)
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{
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/* return number of seconds from time */
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return 0.0;
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}
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cst_val *get_wavelist(const char *wavelistfile)
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{
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cst_val *l = 0;
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cst_tokenstream *ts;
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const char *token;
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int i=0;
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ts = ts_open(wavelistfile);
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if (!ts)
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{
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fprintf(stderr,"combine_waves: can't open \"%s\"\n",wavelistfile);
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return 0;
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}
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while ((token=ts_get(ts)) != 0)
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{
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l = cons_val(string_val(token),l);
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i++;
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}
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if (i%2 != 0)
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{
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fprintf(stderr,"combine_waves: doesn't have matched pairs \"%s\"\n",wavelistfile);
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delete_val(l);
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l = 0;
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}
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ts_close(ts);
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return val_reverse(l);
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}
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int main(int argc, char **argv)
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{
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cst_wave *nw, *all;
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cst_val *files;
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const cst_val *w;
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cst_val *wavelist;
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cst_features *args;
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int i,j;
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float ntime;
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int stime;
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const char *nwfile;
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args = new_features();
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files =
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cst_args(argv,argc,
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"usage: combine_waves OPTIONS\n"
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"Combine waves into single waveform\n"
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"-o <string> Output waveform\n"
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"-f <int> Input sample rate (for raw input)\n"
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"-itype <string> Input type, raw or headered\n"
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"-wavelist <string> File containing times and wave filenames\n",
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args);
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wavelist = get_wavelist(get_param_string(args,"-wavelist","-"));
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if (wavelist == 0)
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return -1;
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all = new_wave();
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for (w = wavelist; w; w = val_cdr(w))
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{
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ntime = decode_time(val_string(val_car(w)));
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nwfile = val_string(val_car(val_cdr(w)));
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nw = new_wave();
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if (cst_wave_load_riff(nw,nwfile) != CST_OK_FORMAT)
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{
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fprintf(stderr,
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"combine_waves: can't read file or wrong format \"%s\"\n",
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nwfile);
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continue;
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}
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stime = ntime * nw->sample_rate;
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cst_wave_resize(all,stime+nw->num_samples,1);
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for (i=0,j=stime; i<nw->num_samples; i++,j++)
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{
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/* this will cause overflows */
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all->samples[j] += nw->samples[i];
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}
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delete_wave(nw);
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}
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cst_wave_save_riff(all,get_param_string(args,"-o","-"));
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return 0;
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}
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