ref: 1285ab107bfb9f1ad16886e2870dffb6db647291
parent: c09ddfe6d31b84a682a993bfad23c50fe7c41faf
author: rrt <rrt>
date: Fri Jan 5 20:16:44 EST 2007
Remove ST_EFF_NULL. I've tested the various effects with this by ear, in particular resample and polyphase to the same frequency, and all seems fine.
--- a/src/avg.c
+++ b/src/avg.c
@@ -501,19 +501,7 @@
return ST_EOF;
}
-#if 0 /* TODO: test the following: */
- if (effp->ininfo.channels != effp->outinfo.channels)
- return ST_SUCCESS;
-
- for (i = 0; i < (int)effp->ininfo.channels; ++i)
- for (j = 0; j < (int)effp->outinfo.channels; ++j)
- if (avg->sources[i][j] != (i == j))
- return ST_SUCCESS;
-
- return ST_EFF_NULL;
-#else
return ST_SUCCESS;
-#endif
}
/*
--- a/src/dcshift.c
+++ b/src/dcshift.c
@@ -76,17 +76,13 @@
{dcs_t dcs = (dcs_t) effp->priv;
- if (dcs->dcshift == 0)
- return ST_EFF_NULL;
-
- if (effp->outinfo.channels != effp->ininfo.channels)
- {- st_warn("DCSHIFT cannot handle different channels (in=%d, out=%d)"+ if (effp->outinfo.channels != effp->ininfo.channels) {+ st_fail("DCSHIFT cannot handle different channels (in=%d, out=%d)"" use avg or pan", effp->ininfo.channels, effp->outinfo.channels);
+ return ST_EOF;
}
- if (effp->outinfo.rate != effp->ininfo.rate)
- {+ if (effp->outinfo.rate != effp->ininfo.rate) { st_fail("DCSHIFT cannot handle different rates (in=%ld, out=%ld)"" use resample or rate", effp->ininfo.rate, effp->outinfo.rate);
return ST_EOF;
--- a/src/equalizer.c
+++ b/src/equalizer.c
@@ -74,9 +74,6 @@
double amp;
double alpha;
- if (eq->gain == 0)
- return ST_EFF_NULL;
-
/* Set the filter constants */
w0 = 2*M_PI*eq->fc/effp->ininfo.rate;
amp = pow( 10, eq->gain/40 );
--- a/src/fade.c
+++ b/src/fade.c
@@ -184,15 +184,11 @@
} /* endif fade time sanity */
fade->samplesdone = fade->in_start;
-
fade->endpadwarned = 0;
st_debug("fade: in_start = %d in_stop = %d out_start = %d out_stop = %d", fade->in_start, fade->in_stop, fade->out_start, fade->out_stop);- if (fade->in_start == fade->in_stop && fade->out_start == fade->out_stop)
- return ST_EFF_NULL;
-
- return(ST_SUCCESS);
+ return ST_SUCCESS;
}
/*
--- a/src/mask.c
+++ b/src/mask.c
@@ -1,4 +1,6 @@
/*
+ * Sound Tools masking noise effect file.
+ *
* July 5, 1991
* Copyright 1991 Lance Norskog And Sundry Contributors
* This source code is freely redistributable and may be used for
@@ -5,12 +7,9 @@
* 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 masking noise effect file.
*
* TODO: does triangular noise, could do local shaping
+ *
*/
#include <stdlib.h>
@@ -49,34 +48,14 @@
return ST_SUCCESS;
}
-static int st_mask_start(eff_t effp)
-{- mask_t mask = (mask_t) effp->priv;
-
- if (effp->outinfo.encoding == ST_ENCODING_ULAW ||
- effp->outinfo.encoding == ST_ENCODING_ALAW) {- mask->amount *= 16;
- return ST_SUCCESS;
- }
- if (effp->outinfo.size == ST_SIZE_BYTE) {- mask->amount *= 256;
- return ST_SUCCESS;
- }
- if (effp->outinfo.size == ST_SIZE_WORD)
- return ST_SUCCESS;
-
- return ST_EFF_NULL; /* Dithering not needed at >= 24 bits */
-}
-
static int st_mask_flow(eff_t effp, const st_sample_t * ibuf,
st_sample_t * obuf, st_size_t * isamp, st_size_t * osamp)
{- mask_t mask = (mask_t) effp->priv;
- st_size_t len = *isamp > *osamp ? *osamp : *isamp;
+ mask_t mask = (mask_t)effp->priv;
+ st_size_t len = min(*isamp, *osamp);
*isamp = *osamp = len;
- while (len--)
- { /* 16 signed bits of triangular noise */+ while (len--) { /* 16 signed bits of triangular noise */int tri16 = ((rand() % 32768L) + (rand() % 32768L)) - 32767;
double l = *ibuf++ + tri16 * mask->amount;
*obuf++ = ST_ROUND_CLIP_COUNT(l, effp->clippedCount);
@@ -89,7 +68,7 @@
"Usage: mask [amount]",
ST_EFF_MCHAN,
st_mask_getopts,
- st_mask_start,
+ st_effect_nothing,
st_mask_flow,
st_effect_nothing_drain,
st_effect_nothing,
@@ -106,7 +85,7 @@
"Usage: dither [amount]",
ST_EFF_MCHAN,
st_mask_getopts,
- st_mask_start,
+ st_effect_nothing,
st_mask_flow,
st_effect_nothing_drain,
st_effect_nothing,
--- a/src/pad.c
+++ b/src/pad.c
@@ -23,7 +23,7 @@
{int npads; /* Number of pads requested */
struct {- char * str; /* Command-line argument to parse for this pad */
+ char *str; /* Command-line argument to parse for this pad */
st_size_t start; /* Start padding when in_pos equals this */
st_size_t pad; /* Number of samples to pad */
} * pads;
@@ -73,14 +73,10 @@
static int start(eff_t effp)
{pad_t p = (pad_t) effp->priv;
- int i;
parse(effp, 0, effp->ininfo.rate); /* Re-parse now rate is known */
p->in_pos = p->pad_pos = p->pads_pos = 0;
- for (i = 0; i < p->npads; ++i)
- if (p->pads[i].pad)
- return ST_SUCCESS;
- return ST_EFF_NULL;
+ return ST_SUCCESS;
}
static int flow(eff_t effp, const st_sample_t * ibuf, st_sample_t * obuf,
--- a/src/pitch.c
+++ b/src/pitch.c
@@ -433,9 +433,6 @@
return ST_EOF;
}
- if (pitch->shift == 0)
- return ST_EFF_NULL;
-
return ST_SUCCESS;
}
--- a/src/polyphas.c
+++ b/src/polyphas.c
@@ -372,9 +372,6 @@
int total, size, uprate;
int k;
- if (effp->ininfo.rate == effp->outinfo.rate)
- return ST_EFF_NULL;
-
rate->lcmrate = st_lcm((st_sample_t)effp->ininfo.rate,
(st_sample_t)effp->outinfo.rate);
--- a/src/resample.c
+++ b/src/resample.c
@@ -197,12 +197,9 @@
resample_t r = (resample_t) effp->priv;
long Xoff, gcdrate;
int i;
- double in_rate = floor(effp->ininfo.rate / effp->globalinfo->speed + .5)
- * effp->globalinfo->speed;/* Make "speed" more accurate (st_rate_t is int)*/
-
- if (effp->ininfo.rate == effp->outinfo.rate)
- return ST_EFF_NULL;
-
+ double in_rate = floor(effp->ininfo.rate / effp->globalinfo->speed + .5)
+ * effp->globalinfo->speed;/* Make "speed" more accurate (st_rate_t is int)*/
+
r->Factor = (double)effp->outinfo.rate / in_rate;
gcdrate = st_gcd((long)effp->ininfo.rate, (long)effp->outinfo.rate);
--- a/src/sox.c
+++ b/src/sox.c
@@ -940,14 +940,6 @@
int effects_mask = 0;
int status;
- /* Remove any null effects: */
- for (i = 0; i < nuser_effects; ++i)
- if (user_efftab[i].h->flags & ST_EFF_NULL) {- --nuser_effects;
- for (j = i--; j < nuser_effects; ++j)
- user_efftab[j] = user_efftab[j + 1];
- }
-
needrate = (file_desc[0]->signal.rate != file_desc[file_count-1]->signal.rate);
needchan = (file_desc[0]->signal.channels != file_desc[file_count-1]->signal.channels);
@@ -1106,9 +1098,7 @@
efftab[e].clippedCount = 0;
if ((ret = (*efftab[e].h->start)(&efftab[e])) == ST_EOF)
break;
- if (ret == ST_EFF_NULL)
- st_report("`%s' has no effect in this configuration", efftab[e].name);- else if (efftabR[e].name) {+ if (efftabR[e].name) {efftabR[e].clippedCount = 0;
if ((ret = (*efftabR[e].h->start)(&efftabR[e])) != ST_SUCCESS)
break;
--- a/src/st.h
+++ b/src/st.h
@@ -342,7 +342,6 @@
#define ST_EFF_RATE 2 /* Effect can alter data rate */
#define ST_EFF_MCHAN 4 /* Effect can handle multi-channel */
#define ST_EFF_REPORT 8 /* Effect does not affect the audio */
-#define ST_EFF_NULL 16 /* Effect does nothing */
/*
* Handler structure for each effect.