Cosmetics: Fix comment.

[ffmpeg] / libavutil / eval.c

diff --git a/libavutil/eval.c b/libavutil/eval.c
index 36cc76d3bf43dc3a8495f85bce76e44dfc10b20b..4e2cb1095ca981c67a3c81e34341b78296102ac2 100644 (file)
--- a/libavutil/eval.c
+++ b/libavutil/eval.c
@@ -28,6 +28,7 @@
 
 #include "avutil.h"
 #include "eval.h"
+#include "log.h"
 
 typedef struct Parser {
     const AVClass *class;
@@ -76,7 +77,7 @@ double av_strtod(const char *numstr, char **tail)
     double d;
     char *next;
     if(numstr[0]=='0' && (numstr[1]|0x20)=='x') {
-        d = strtol(numstr, &next, 16);
+        d = strtoul(numstr, &next, 16);
     } else
         d = strtod(numstr, &next);
     /* if parsing succeeded, check for and interpret postfixes */
@@ -471,7 +472,7 @@ int av_expr_parse(AVExpr **expr, const char *s,
                   const char * const *func2_names, double (* const *funcs2)(void *, double, double),
                   int log_offset, void *log_ctx)
 {
-    Parser p;
+    Parser p = { 0 };
     AVExpr *e = NULL;
     char *w = av_malloc(strlen(s) + 1);
     char *wp = w;
@@ -499,6 +500,7 @@ int av_expr_parse(AVExpr **expr, const char *s,
     if ((ret = parse_expr(&e, &p)) < 0)
         goto end;
     if (*p.s) {
+        av_expr_free(e);
         av_log(&p, AV_LOG_ERROR, "Invalid chars '%s' at the end of expression '%s'\n", p.s, s0);
         ret = AVERROR(EINVAL);
         goto end;
@@ -516,7 +518,7 @@ end:
 
 double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
 {
-    Parser p;
+    Parser p = { 0 };
 
     p.const_values = const_values;
     p.opaque     = opaque;
@@ -575,6 +577,8 @@ void av_free_expr(AVExpr *e)
 
 #ifdef TEST
 #undef printf
+#include <string.h>
+
 static double const_values[] = {
     M_PI,
     M_E,
@@ -587,7 +591,7 @@ static const char *const_names[] = {
     0
 };
 
-int main(void)
+int main(int argc, char **argv)
 {
     int i;
     double d;
@@ -598,7 +602,7 @@ int main(void)
         "-PI",
         "+PI",
         "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
-        "80G/80Gi"
+        "80G/80Gi",
         "1k",
         "1Gi",
         "1gi",
@@ -656,7 +660,11 @@ int main(void)
         av_expr_parse_and_eval(&d, *expr,
                                const_names, const_values,
                                NULL, NULL, NULL, NULL, NULL, 0, NULL);
-        printf("'%s' -> %f\n\n", *expr, d);
+        if(isnan(d)){
+            printf("'%s' -> nan\n\n", *expr);
+        }else{
+            printf("'%s' -> %f\n\n", *expr, d);
+        }
     }
 
     av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
@@ -668,13 +676,16 @@ int main(void)
                            NULL, NULL, NULL, NULL, NULL, 0, NULL);
     printf("%f == 0.931322575\n", d);
 
-    for (i=0; i<1050; i++) {
-        START_TIMER
+    if (argc > 1 && !strcmp(argv[1], "-t")) {
+        for (i = 0; i < 1050; i++) {
+            START_TIMER;
             av_expr_parse_and_eval(&d, "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
                                    const_names, const_values,
                                    NULL, NULL, NULL, NULL, NULL, 0, NULL);
-        STOP_TIMER("av_expr_parse_and_eval")
+            STOP_TIMER("av_expr_parse_and_eval");
+        }
     }
+
     return 0;
 }
 #endif