avfilter/af_compand_fork: avoid strtok_r() so as not to break build

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavfilter/af_compand_fork.c

@@ -27,8 +27,7 @@
  * audio compand filter
  */
 
-#include <string.h>
-
+#include "libavutil/avstring.h"
 #include "libavutil/channel_layout.h"
 #include "libavutil/common.h"
 #include "libavutil/mathematics.h"
@@ -368,7 +367,7 @@ static int config_output(AVFilterLink *outlink)
 
     p = s->attacks;
     for (i = 0, new_nb_items = 0; i < nb_attacks; i++) {
-        char *tstr = strtok_r(p, "|", &saveptr);
+        char *tstr = av_strtok(p, "|", &saveptr);
         p = NULL;
         new_nb_items += sscanf(tstr, "%f", &s->channels[i].attack) == 1;
         if (s->channels[i].attack < 0) {
@@ -380,7 +379,7 @@ static int config_output(AVFilterLink *outlink)
 
     p = s->decays;
     for (i = 0, new_nb_items = 0; i < nb_decays; i++) {
-        char *tstr = strtok_r(p, "|", &saveptr);
+        char *tstr = av_strtok(p, "|", &saveptr);
         p = NULL;
         new_nb_items += sscanf(tstr, "%f", &s->channels[i].decay) == 1;
         if (s->channels[i].decay < 0) {
@@ -401,7 +400,7 @@ static int config_output(AVFilterLink *outlink)
 #define S(x) s->segments[2 * ((x) + 1)]
     p = s->points;
     for (i = 0, new_nb_items = 0; i < nb_points; i++) {
-        char *tstr = strtok_r(p, "|", &saveptr);
+        char *tstr = av_strtok(p, "|", &saveptr);
         p = NULL;
         if (sscanf(tstr, "%f/%f", &S(i).x, &S(i).y) != 2) {
             av_log(ctx, AV_LOG_ERROR,