/*
* Do anything required when you stop reading samples.
* Don't close input file!
*/
int st_vol_stop(eff_t effp)
{
vol_t vol = (vol_t) effp->priv;
if (vol->limited)
{
st_warn("VOL limited %d values (%d percent).",
vol->limited, (int) (vol->limited * 100.0 / vol->totalprocessed));
}
if (vol->clipped)
{
st_warn("VOL clipped %d values, amplitude gain=%f too high...",
vol->clipped, vol->gain);
}
return ST_SUCCESS;
}
/*
* Process tail of input samples.
*/
int st_resample_drain(eff_t effp, st_sample_t *obuf, st_size_t *osamp)
{
resample_t r = (resample_t) effp->priv;
long isamp_res, osamp_res;
st_sample_t *Obuf;
int rc;
/* fprintf(stderr,"Xoff %d, Xt %d <--- DRAIN\n",r->Xoff, r->Xt); */
/* stuff end with Xoff zeros */
isamp_res = r->Xoff;
osamp_res = *osamp;
Obuf = obuf;
while (isamp_res>0 && osamp_res>0) {
st_sample_t Isamp, Osamp;
Isamp = isamp_res;
Osamp = osamp_res;
rc = st_resample_flow(effp, NULL, Obuf, (st_size_t *)&Isamp, (st_size_t *)&Osamp);
if (rc)
return rc;
/* fprintf(stderr,"DRAIN isamp,osamp (%d,%d) -> (%d,%d)\n",
isamp_res,osamp_res,Isamp,Osamp); */
Obuf += Osamp;
osamp_res -= Osamp;
isamp_res -= Isamp;
}
*osamp -= osamp_res;
/* fprintf(stderr,"DRAIN osamp %d\n", *osamp); */
if (isamp_res)
st_warn("drain overran obuf by %d\n", isamp_res); fflush(stderr);
return (ST_SUCCESS);
}
/*
* Drain out remaining samples if the effect generates any.
*/
int st_fade_drain(eff_t effp, st_sample_t *obuf, st_size_t *osamp)
{
fade_t fade = (fade_t) effp->priv;
int len, t_chan = 0;
len = *osamp;
*osamp = 0;
if (fade->do_out && fade->samplesdone < fade->out_stop &&
!(fade->endpadwarned))
{ /* Warning about padding silence into end of sample */
st_warn("Fade: warning: End time passed end-of-file. Padding with silence");
fade->endpadwarned = 1;
} /* endif endpadwarned */
for (;len && (fade->do_out &&
fade->samplesdone < fade->out_stop); len--)
{
*obuf = 0;
obuf++;
*osamp += 1;
t_chan++;
if (t_chan >= effp->ininfo.channels)
{
fade->samplesdone += 1;
t_chan = 0;
} /* endif channels */
} /* endfor */
if (fade->do_out && fade->samplesdone >= fade->out_stop)
return ST_EOF;
else
return ST_SUCCESS;
}
/*
* Do anything required when you stop reading samples.
* Don't close input file!
*/
int st_pitch_stop(eff_t effp)
{
pitch_t pitch = (pitch_t) effp->priv;
free(pitch->fade);
free(pitch->tmp);
free(pitch->acc);
free(pitch->buf);
if (pitch->clipped)
st_warn("PITCH clipped %d values... adjust volume with -v option maybe?",
pitch->clipped);
return ST_SUCCESS;
}
int st_wvestopwrite(ft_t ft)
{
/* Call before seeking to flush buffer */
return st_rawstopwrite(ft);
if (!ft->seekable)
{
st_warn("Header will be have invalid file length since file is not seekable");
return ST_SUCCESS;
}
if (st_seeki(ft, 0L, 0) != 0)
{
st_fail_errno(ft,errno,"Can't rewind output file to rewrite Psion header.");
return(ST_EOF);
}
wvewriteheader(ft);
}
/* Do window management once we have a complete window, including mangling
* the current window. */
static int process_window(reddata_t data, int chan_num, int num_chans,
st_sample_t *obuf, int len) {
int j;
float* nextwindow;
int use = min(len, WINDOWSIZE)-(WINDOWSIZE/2);
chandata_t *chan = &(data->chandata[chan_num]);
int first = (chan->lastwindow == NULL);
nextwindow = (float*)calloc(WINDOWSIZE, sizeof(float));
memcpy(nextwindow, chan->window+WINDOWSIZE/2,
sizeof(float)*(WINDOWSIZE/2));
reduce_noise(chan, chan->window, data->threshold);
if (!first) {
for (j = 0; j < use; j ++) {
float s = chan->window[j] + chan->lastwindow[WINDOWSIZE/2 + j];
if (s < -1 || s > 1) {
float news;
if (s > 1)
news = 1;
else
news = -1;
st_warn("noisered: Output clipped from %f to %f.\n",
s, news);
}
obuf[chan_num + num_chans * j] =
ST_FLOAT_DWORD_TO_SAMPLE(s);
}
free(chan->lastwindow);
} else {
for (j = 0; j < use; j ++) {
assert(chan->window[j] >= -1 && chan->window[j] <= 1);
obuf[chan_num + num_chans * j] =
ST_FLOAT_DWORD_TO_SAMPLE(chan->window[j]);
}
}
chan->lastwindow = chan->window;
chan->window = nextwindow;
return use;
}
/*
* Start processing
*/
int st_vol_start(eff_t effp)
{
vol_t vol = (vol_t) effp->priv;
if (effp->outinfo.channels != effp->ininfo.channels)
{
st_warn("VOL cannot handle different channels (in=%d, out=%d)"
" use avg or pan", effp->ininfo.channels, effp->outinfo.channels);
}
if (effp->outinfo.rate != effp->ininfo.rate)
{
st_fail("VOL cannot handle different rates (in=%ld, out=%ld)"
" use resample or rate", effp->ininfo.rate, effp->outinfo.rate);
return ST_EOF;
}
vol->clipped = 0;
vol->limited = 0;
vol->totalprocessed = 0;
return ST_SUCCESS;
}
/*
* Prepare for processing.
*/
int st_chorus_start(eff_t effp)
{
chorus_t chorus = (chorus_t) effp->priv;
int i;
float sum_in_volume;
chorus->maxsamples = 0;
if ( chorus->in_gain < 0.0 )
{
st_fail("chorus: gain-in must be positive!\n");
return (ST_EOF);
}
if ( chorus->in_gain > 1.0 )
{
st_fail("chorus: gain-in must be less than 1.0!\n");
return (ST_EOF);
}
if ( chorus->out_gain < 0.0 )
{
st_fail("chorus: gain-out must be positive!\n");
return (ST_EOF);
}
for ( i = 0; i < chorus->num_chorus; i++ ) {
chorus->samples[i] = (int) ( ( chorus->delay[i] +
chorus->depth[i] ) * effp->ininfo.rate / 1000.0);
chorus->depth_samples[i] = (int) (chorus->depth[i] *
effp->ininfo.rate / 1000.0);
if ( chorus->delay[i] < 20.0 )
{
st_fail("chorus: delay must be more than 20.0 msec!\n");
return (ST_EOF);
}
if ( chorus->delay[i] > 100.0 )
{
st_fail("chorus: delay must be less than 100.0 msec!\n");
return (ST_EOF);
}
if ( chorus->speed[i] < 0.1 )
{
st_fail("chorus: speed must be more than 0.1 Hz!\n");
return (ST_EOF);
}
if ( chorus->speed[i] > 5.0 )
{
st_fail("chorus: speed must be less than 5.0 Hz!\n");
return (ST_EOF);
}
if ( chorus->depth[i] < 0.0 )
{
st_fail("chorus: delay must be more positive!\n");
return (ST_EOF);
}
if ( chorus->depth[i] > 10.0 )
{
st_fail("chorus: delay must be less than 10.0 msec!\n");
return (ST_EOF);
}
if ( chorus->decay[i] < 0.0 )
{
st_fail("chorus: decay must be positive!\n" );
return (ST_EOF);
}
if ( chorus->decay[i] > 1.0 )
{
st_fail("chorus: decay must be less that 1.0!\n" );
return (ST_EOF);
}
chorus->length[i] = effp->ininfo.rate / chorus->speed[i];
if (! (chorus->lookup_tab[i] =
(int *) malloc(sizeof (int) * chorus->length[i])))
{
st_fail("chorus: Cannot malloc %d bytes!\n",
sizeof(int) * chorus->length[i]);
return (ST_EOF);
}
if ( chorus->modulation[i] == MOD_SINE )
st_sine(chorus->lookup_tab[i], chorus->length[i],
chorus->depth_samples[i] - 1,
chorus->depth_samples[i]);
else
st_triangle(chorus->lookup_tab[i], chorus->length[i],
chorus->samples[i] - 1,
chorus->depth_samples[i]);
chorus->phase[i] = 0;
if ( chorus->samples[i] > chorus->maxsamples )
chorus->maxsamples = chorus->samples[i];
}
/* Be nice and check the hint with warning, if... */
sum_in_volume = 1.0;
for ( i = 0; i < chorus->num_chorus; i++ )
sum_in_volume += chorus->decay[i];
if ( chorus->in_gain * ( sum_in_volume ) > 1.0 / chorus->out_gain )
st_warn("chorus: warning >>> gain-out can cause saturation or clipping of output <<<");
if (! (chorus->chorusbuf =
(float *) malloc(sizeof (float) * chorus->maxsamples)))
{
st_fail("chorus: Cannot malloc %d bytes!\n",
sizeof(float) * chorus->maxsamples);
return (ST_EOF);
}
for ( i = 0; i < chorus->maxsamples; i++ )
chorus->chorusbuf[i] = 0.0;
chorus->counter = 0;
chorus->fade_out = chorus->maxsamples;
return (ST_SUCCESS);
}
ft_t st_open_read(const char *path, const st_signalinfo_t *info,
const char *filetype)
{
ft_t ft;
ft = (ft_t)calloc(sizeof(struct st_soundstream), 1);
if (!ft )
return NULL;
ft->filename = strdup(path);
/* Let auto effect do the work if user is not overriding. */
if (!filetype)
ft->filetype = strdup("auto");
else
ft->filetype = strdup(filetype);
if (!ft->filename || !ft->filetype)
goto input_error;
if (st_gettype(ft) != ST_SUCCESS)
{
st_warn("Unknown input file format for '%s': %s",
ft->filename,
ft->st_errstr);
goto input_error;
}
ft->info.size = -1;
ft->info.encoding = -1;
ft->info.channels = -1;
if (info)
ft->info = *info;
/* FIXME: Remove ft->swap from code */
ft->swap = ft->info.swap;
ft->mode = 'r';
if (!(ft->h->flags & ST_FILE_NOSTDIO))
{
/* Open file handler based on input name. Used stdin file handler
* if the filename is "-"
*/
if (!strcmp(ft->filename, "-"))
ft->fp = stdin;
else if ((ft->fp = fopen(ft->filename, "rb")) == NULL)
{
st_warn("Can't open input file '%s': %s", ft->filename,
strerror(errno));
goto input_error;
}
/* See if this file is seekable or not */
ft->seekable = is_seekable(ft);
}
/* Read and write starters can change their formats. */
if ((*ft->h->startread)(ft) != ST_SUCCESS)
{
st_warn("Failed reading %s: %s", ft->filename, ft->st_errstr);
goto input_error;
}
/* Go a head and assume 1 channel audio if nothing is detected.
* This is because libst usually doesn't set this for mono file
* formats (for historical reasons).
*/
if (ft->info.channels == -1)
ft->info.channels = 1;
if (st_checkformat(ft) )
{
st_fail("bad input format for file %s: %s", ft->filename,
ft->st_errstr);
goto input_error;
}
return ft;
input_error:
if (ft->filename)
free(ft->filename);
if (ft->filetype)
free(ft->filetype);
free(ft);
return NULL;
}
ft_t st_open_write_instr(const char *path, const st_signalinfo_t *info,
const char *filetype, const char *comment,
const st_instrinfo_t *instr,
const st_loopinfo_t *loops)
{
ft_t ft;
int i;
ft = (ft_t)calloc(sizeof(struct st_soundstream), 1);
if (!ft )
return NULL;
ft->filename = strdup(path);
/* Let auto effect do the work if user is not overriding. */
if (!filetype)
{
char *chop;
int len;
len = strlen(ft->filename);
/* Use filename extension to determine audio type. */
chop = ft->filename + len;
while (chop > ft->filename && *chop != LASTCHAR)
chop--;
while (chop < ft->filename+len && *chop != '.')
chop++;
if (*chop == '.')
{
chop++;
ft->filetype = strdup(chop);
}
}
else
ft->filetype = strdup(filetype);
if (!ft->filename || !ft->filetype)
goto output_error;
if (st_gettype(ft) != ST_SUCCESS)
{
st_warn("Unknown output file format for '%s': %s",
ft->filename,
ft->st_errstr);
goto output_error;
}
ft->info.size = -1;
ft->info.encoding = -1;
ft->info.channels = -1;
if (info)
ft->info = *info;
ft->mode = 'w';
if (!(ft->h->flags & ST_FILE_NOSTDIO))
{
/* Open file handler based on input name. Used stdin file handler
* if the filename is "-"
*/
if (!strcmp(ft->filename, "-"))
{
ft->fp = stdout;
}
else if ((ft->fp = fopen(ft->filename, "wb")) == NULL)
{
st_warn("Can't open output file '%s': %s", ft->filename,
strerror(errno));
goto output_error;
}
/* stdout tends to be line-buffered. Override this */
/* to be Full Buffering. */
/* FIXME: Use buffer size from ft structure */
if (setvbuf (ft->fp, NULL, _IOFBF, sizeof(char)*ST_BUFSIZ))
{
st_warn("Can't set write buffer");
goto output_error;
}
/* See if this file is seekable or not */
ft->seekable = is_seekable(ft);
}
if (ft->comment == NULL && comment != NULL)
ft->comment = strdup(comment);
else
ft->comment = strdup("Processed by SoX");
if (loops)
{
for (i = 0; i < ST_MAX_NLOOPS; i++)
{
ft->loops[i] = loops[i];
}
}
/* leave SMPTE # alone since it's absolute */
if (instr)
ft->instr = *instr;
/* FIXME: Remove ft->swap from code */
ft->swap = ft->info.swap;
/* Read and write starters can change their formats. */
if ((*ft->h->startwrite)(ft) != ST_SUCCESS)
{
st_warn("Failed writing %s: %s", ft->filename, ft->st_errstr);
goto output_error;
}
if (st_checkformat(ft) )
{
st_fail("bad output format for file %s: %s", ft->filename,
ft->st_errstr);
goto output_error;
}
return ft;
output_error:
if (ft->filename)
free(ft->filename);
if (ft->filetype)
free(ft->filetype);
free(ft);
return NULL;
}
