Fix segault

[frescor/ffmpeg.git] / libavcodec / eval.h

diff --git a/libavcodec/eval.h b/libavcodec/eval.h
index b52199cf4c3e3ae2804b1ac3b96709ba3a5d6faa..82d4315bacf3815579a70dcfcd68ecf98ace0807 100644 (file)
--- a/libavcodec/eval.h
+++ b/libavcodec/eval.h
@@ -21,20 +21,13 @@
  */
 
 /**
- * @file eval.h
+ * @file libavcodec/eval.h
  * eval header.
  */
 
 #ifndef AVCODEC_EVAL_H
 #define AVCODEC_EVAL_H
 
-#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
-double ff_eval(char *s, double *const_value, const char **const_name,
-               double (**func1)(void *, double), const char **func1_name,
-               double (**func2)(void *, double, double), char **func2_name,
-               void *opaque);
-#endif
-
 /**
  * Parses and evaluates an expression.
  * Note, this is significantly slower than ff_parse_eval()
@@ -49,10 +42,10 @@ double ff_eval(char *s, double *const_value, const char **const_name,
  * @param opaque a pointer which will be passed to all functions from func1 and func2
  * @return the value of the expression
  */
-double ff_eval2(char *s, double *const_value, const char **const_name,
+double ff_eval2(const char *s, const double *const_value, const char * const *const_name,
                double (**func1)(void *, double), const char **func1_name,
-               double (**func2)(void *, double, double), char **func2_name,
-               void *opaque, char **error);
+               double (**func2)(void *, double, double), const char **func2_name,
+               void *opaque, const char **error);
 
 typedef struct ff_expr_s AVEvalExpr;
 
@@ -65,20 +58,20 @@ typedef struct ff_expr_s AVEvalExpr;
  * @param func1_name NULL terminated array of zero terminated strings of func1 identifers
  * @param func2_name NULL terminated array of zero terminated strings of func2 identifers
  * @param error pointer to a char* which is set to an error message if something goes wrong
- * @return AVEvalExpr which must be freed with ff_eval_free by the user when its not needed anymore
+ * @return AVEvalExpr which must be freed with ff_eval_free by the user when it is not needed anymore
  *         NULL if anything went wrong
  */
-AVEvalExpr * ff_parse(char *s, const char **const_name,
+AVEvalExpr * ff_parse(const char *s, const char * const *const_name,
                double (**func1)(void *, double), const char **func1_name,
-               double (**func2)(void *, double, double), char **func2_name,
-               char **error);
+               double (**func2)(void *, double, double), const char **func2_name,
+               const char **error);
 /**
  * Evaluates a previously parsed expression.
  * @param const_value a zero terminated array of values for the identifers from ff_parse const_name
  * @param opaque a pointer which will be passed to all functions from func1 and func2
  * @return the value of the expression
  */
-double ff_parse_eval(AVEvalExpr * e, double *const_value, void *opaque);
+double ff_parse_eval(AVEvalExpr * e, const double *const_value, void *opaque);
 void ff_eval_free(AVEvalExpr * e);
 
 #endif /* AVCODEC_EVAL_H */