@@ -14438,6 +14438,17 @@ Default is @code{1}, which means time averaging is disabled.

 Specify list of colors separated by space or by '|' which will be used to

 draw channel frequencies. Unrecognized or missing colors will be replaced

 by white color.

+

+@item cmode

+Set channel display mode.

+

+It accepts the following values:

+@table @samp

+@item combined

+@item separate

+@end table

+Default is @code{combined}.

+

 @end table

 @section showspectrum

@@ -34,6 +34,7 @@

 #include "internal.h"

 enum DisplayMode    { LINE, BAR, DOT, NB_MODES };

+enum ChannelMode    { COMBINED, SEPARATE, NB_CMODES };

 enum FrequencyScale { FS_LINEAR, FS_LOG, FS_RLOG, NB_FSCALES };

 enum AmplitudeScale { AS_LINEAR, AS_SQRT, AS_CBRT, AS_LOG, NB_ASCALES };

 enum WindowFunc     { WFUNC_RECT, WFUNC_HANNING, WFUNC_HAMMING, WFUNC_BLACKMAN,

@@ -45,6 +46,7 @@ typedef struct ShowFreqsContext {

     const AVClass *class;

     int w, h;

     int mode;

+    int cmode;

     int fft_bits;

     int ascale, fscale;

     int avg;

@@ -115,6 +117,9 @@ static const AVOption showfreqs_options[] = {

     { "overlap",  "set window overlap", OFFSET(overlap), AV_OPT_TYPE_FLOAT, {.dbl=1.}, 0., 1., FLAGS },

     { "averaging", "set time averaging", OFFSET(avg), AV_OPT_TYPE_INT, {.i64=1}, 0, INT32_MAX, FLAGS },

     { "colors", "set channels colors", OFFSET(colors), AV_OPT_TYPE_STRING, {.str = "red|green|blue|yellow|orange|lime|pink|magenta|brown" }, 0, 0, FLAGS },

+    { "cmode", "set channel mode", OFFSET(cmode), AV_OPT_TYPE_INT, {.i64=COMBINED}, 0, NB_CMODES-1, FLAGS, "cmode" },

+        { "combined", "show all channels in same window",  0, AV_OPT_TYPE_CONST, {.i64=COMBINED}, 0, 0, FLAGS, "cmode" },

+        { "separate", "show each channel in own window",   0, AV_OPT_TYPE_CONST, {.i64=SEPARATE}, 0, 0, FLAGS, "cmode" },

     { NULL }

 };

@@ -358,6 +363,7 @@ static inline void plot_freq(ShowFreqsContext *s, int ch,

     const float avg = s->avg_data[ch][f];

     const float bsize = get_bsize(s, f);

     const int sx = get_sx(s, f);

+    int end = outlink->h;

     int x, y, i;

     switch(s->ascale) {

@@ -374,7 +380,16 @@ static inline void plot_freq(ShowFreqsContext *s, int ch,

         a = 1.0 - a;

         break;

     }

-    y = a * outlink->h - 1;

+

+    switch (s->cmode) {

+    case COMBINED:

+        y = a * outlink->h - 1;

+        break;

+    case SEPARATE:

+        end = (outlink->h / s->nb_channels) * (ch + 1);

+        y = (outlink->h / s->nb_channels) * ch + a * (outlink->h / s->nb_channels) - 1;

+        break;

+    }

     if (y < 0)

         return;

@@ -410,7 +425,7 @@ static inline void plot_freq(ShowFreqsContext *s, int ch,

         break;

     case BAR:

         for (x = sx; x < sx + bsize && x < w; x++)

-            for (i = y; i < outlink->h; i++)

+            for (i = y; i < end; i++)

                 draw_dot(out, x, i, fg);

         break;

     case DOT: