shithub: sox

Info  •  Files  •  Log  •  Branches

fir effect: support for --plot

--- a/sox.1

+++ b/sox.1

@@ -2140,12 +2140,14 @@

 .EX

    # HP filter

    # freq=10000

-     1.2311233052619888e-01

-    \-4.4777096106211783e-01

-     5.1031563346705155e-01

-    \-6.6502926320995331e-02

+     1.2311233052619888e\-01

+    \-4.4777096106211783e\-01

+     5.1031563346705155e\-01

+    \-6.6502926320995331e\-02

    ...

 .EE

+.SP

+This effect supports the \fB\-\-plot\fR global option.

 .TP

 \fBflanger\fR [\fIdelay depth regen width speed shape phase interp\fR]

 Apply a flanging effect to the audio.

--- a/src/fir.c

+++ b/src/fir.c

@@ -73,6 +73,14 @@

     lsx_report("%i coefficients", p->n);

     if (!p->n)

       return SOX_EFF_NULL;

+    if (effp->global_info->plot != sox_plot_off) {

+      char title[100];

+      sprintf(title, "SoX effect: fir (%d coefficients)", p->n);

+      lsx_plot_fir(p->h, p->n, effp->in_signal.rate,

+          effp->global_info->plot, title, -30., 30.);

+      free(p->h);

+      return SOX_EOF;

+    }

     lsx_set_dft_filter(f, p->h, p->n, p->n >> 1);

   }

   return lsx_dft_filter_effect_fn()->start(effp);