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# include <getopt.h> // getopt
# include "qwav.hh"
# include "qwavsample.hh"
# include "qexception.hh"
# include "qmisc.hh"
#include <iostream>
#ifdef NLS
# include <locale.h>
# include <libintl.h>
# define _(s) gettext (s)
#else
# define _(s) (s)
#endif
void usage () {
cerr << " " << APPNAME << _(": fade in/out wav files\n");
cerr << " " << _("syntax: ") << APPNAME << _("[option]... file...\n");
cerr << _(" -d, --duration <duration>[j|s|m|b|k|M]: set the fade duration\n");
cerr << _(" -h, --help: show this help and exit\n");
cerr << _(" -i, --in: just fade in\n");
cerr << _(" -l, --length [[h:]m:]s[.ms]: set the fade duration.\n");
// cerr << _(" -m, --mode <mode>: select the type of fade {linear,quadpos,quadneg} \n");
cerr << _(" -o, --out: just fade out\n");
cerr << _(" -t, --test: don't modify. create and fade a test file\n");
cerr << _(" -v, --verbose: show more detailed info\n");
cerr << _(" -V, --version: show version and exit\n");
cerr << _(" see info manual for more info about options and usage\n");
}
int main (int argc, char **argv) {
int option;
qvf duration(5,qvf::SECONDS);
bool in=true,out=true,verbose=false,test=false;
static struct option long_options[] = {
{"duration",required_argument,0,'d'},
{"help",no_argument,0,'h'},
{"in",no_argument,0,'i'},
{"length",required_argument,0,'l'},
// {"mode",required_argument,0,'m'},
{"out",no_argument,0,'o'},
{"test",no_argument,0,'t'},
{"verbose",no_argument,0,'v'},
{"version",no_argument,0,'V'},
{0,0,0,0}
};
#ifdef NLS
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
#endif
// un altre dia, per defecte llegir *.wav ...
if (argc==1) {
usage();
return 1;
}
// supress getopt error message
opterr = 0;
while ((option = getopt_long(argc, argv, "d:hil:otvV",long_options,0)) != EOF)
switch (option) {
case 'd':
try { duration = qvf(optarg); }
catch (qexception e) { cerr << e << endl; }
break;
case 'h':
usage();
return 0;
break;
case 'i':
in=true;
out=false;
break;
case 'l':
try {
duration = qvf(time2ms(optarg),qvf::MILLISECONDS);
}
catch (qexception e) { cerr << e << endl; }
break;
case 'o':
out=true;
in=false;
break;
case 't':
test = true;
break;
case 'v':
verbose=true;
break;
case 'V':
cerr << APPNAME << " - " << _("version") << ' ' << VERSION
<< _("build") << ' ' << __DATE__ << '\n';
return 0;
break;
case '?':
default:
cerr << APPNAME << ": " << _("option") << " '" << argv[optind-1]
<< "' " << _("is not recognized or bad used") << '\n';
usage();
return 1;
}
if (argc<=optind) {
// haurem de fer *.wav ...
cerr << APPNAME << _(": no input file(s)") << endl;
usage();
return 1;
}
u_int32_t wavmode = test?qwav::READ:qwav::READWRITE;
while (argv[optind]) {
if (verbose)
cerr << _("fading '") << argv[optind] << "'...\n";
qwav *wav = new qwav(argv[optind],wavmode);
u_int32_t nsamples = wav->getSample(duration); // dins del rang?
if (in && out && nsamples>wav->getSamples()/2) {
cerr << APPNAME << _(": both fades overlap. they'd be done separately\n");
optind++;
continue;
}
if (in) { // fade in:
if (test) {
string name(string("fadein.")+wav->getName());
qvf size(nsamples+5*wav->getSampleRate());
qcuthandler h;
h.setOutfile(name);
h.setSize(size);
wav->cut(h);
if (verbose)
cerr << _("created testfile '") << name << "'\n";
delete wav;
wav = new qwav(name,qwav::READWRITE);
}
qwavsample sample(wav);
double factor;
for (u_int32_t i=0; i<nsamples; i++) {
factor = (double)i/(double)nsamples;
sample.prod(factor);
sample.setNext();
}
if (verbose)
cerr << _("faded in ") << nsamples << _(" samples in '") << wav->getName()
<< "'\n";
}
delete wav;
wav = new qwav(argv[optind],wavmode);
if (out) { // fade out
if (test) {
string name(string("fadeout.")+wav->getName());
qvf begin(nsamples+5*wav->getSampleRate());
qcuthandler h;
h.setOutfile(name);
h.setbegin(begin);
wav->cut(h);
if (verbose)
cerr << _("created testfile ") << name << "'\n";
delete wav;
wav = new qwav(name,qwav::READWRITE);
}
qwavsample sample(wav,wav->getSamples()-nsamples+1);
double factor;
for (int i=nsamples; i>0; i--) {
factor = (double)i/(double)nsamples;
sample.prod(factor);
sample.setNext();
}
if (verbose)
cerr << _("faded out ") << nsamples << _(" samples in '")
<< wav->getName() << "'\n";
}
optind++;
}
}
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