Add a few const qualifiers in appropriate places.

patch by Anders Grönberg, galileo.m2 gmail com

Originally committed as revision 16120 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/eval.c

@@ -47,12 +47,12 @@
 typedef struct Parser{
     int stack_index;
     char *s;
-    double *const_value;
+    const double *const_value;
-    const char **const_name;          // NULL terminated
+    const char * const *const_name;          // NULL terminated
     double (**func1)(void *, double a); // NULL terminated
     const char **func1_name;          // NULL terminated
     double (**func2)(void *, double a, double b); // NULL terminated
-    char **func2_name;          // NULL terminated
+    const char **func2_name;          // NULL terminated
     void *opaque;
     const char **error;
 #define VARS 10
@@ -375,9 +375,9 @@ static int verify_expr(AVEvalExpr * e) {
     }
 }
 
-AVEvalExpr * ff_parse(const 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,
+               double (**func2)(void *, double, double), const char **func2_name,
                const char **error){
     Parser p;
     AVEvalExpr * e;
@@ -404,7 +404,7 @@ AVEvalExpr * ff_parse(const char *s, const char **const_name,
     return e;
 }
 
-double ff_parse_eval(AVEvalExpr * e, double *const_value, void *opaque) {
+double ff_parse_eval(AVEvalExpr * e, const double *const_value, void *opaque) {
     Parser p;
 
     p.const_value= const_value;
@@ -412,9 +412,9 @@ double ff_parse_eval(AVEvalExpr * e, double *const_value, void *opaque) {
     return eval_expr(&p, e);
 }
 
-double ff_eval2(const 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,
+               double (**func2)(void *, double, double), const char **func2_name,
                void *opaque, const char **error){
     AVEvalExpr * e = ff_parse(s, const_name, func1, func1_name, func2, func2_name, error);
     double d;

libavcodec/eval.h

@@ -42,9 +42,9 @@
  * @param opaque a pointer which will be passed to all functions from func1 and func2
  * @return the value of the expression
  */
-double ff_eval2(const 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,
+               double (**func2)(void *, double, double), const char **func2_name,
                void *opaque, const char **error);
 
 typedef struct ff_expr_s AVEvalExpr;
@@ -61,9 +61,9 @@ typedef struct ff_expr_s AVEvalExpr;
  * @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(const 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,
+               double (**func2)(void *, double, double), const char **func2_name,
                const char **error);
 /**
  * Evaluates a previously parsed expression.
@@ -71,7 +71,7 @@ AVEvalExpr * ff_parse(const char *s, 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_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 */

libavcodec/h264.c

@@ -106,7 +106,7 @@ static void fill_caches(H264Context *h, int mb_type, int for_deblock){
     const int mb_xy= h->mb_xy;
     int topleft_xy, top_xy, topright_xy, left_xy[2];
     int topleft_type, top_type, topright_type, left_type[2];
-    int * left_block;
+    const int * left_block;
     int topleft_partition= -1;
     int i;