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author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-06-01 08:07:12 +0000 |
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committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-06-01 08:07:12 +0000 |
commit | 9711439b44a672d2a2f35e78bdba16fdfb5c817d (patch) | |
tree | 784f062be6451777888358edac60d34b8176f330 | |
parent | 9ace13b416c77f15464fd8e1a024db8b00ce76f9 (diff) | |
download | ffmpeg-9711439b44a672d2a2f35e78bdba16fdfb5c817d.tar.gz |
Cosmetics: rename ff_parse_expr() and ff_parse_and_eval_expr() parameters:
const_name -> const_names
const_value -> const_values
func[12]_name -> func[12]_names
func[12] -> funcs[12]
All these parameters contain a list of values, using plural names for
them help understanding a little.
Originally committed as revision 23403 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r-- | libavcodec/eval.c | 62 | ||||
-rw-r--r-- | libavcodec/eval.h | 42 |
2 files changed, 52 insertions, 52 deletions
diff --git a/libavcodec/eval.c b/libavcodec/eval.c index dedca7169f..85b2565520 100644 --- a/libavcodec/eval.c +++ b/libavcodec/eval.c @@ -33,12 +33,12 @@ typedef struct Parser{ const AVClass *class; int stack_index; char *s; - const double *const_value; - const char * const *const_name; // NULL terminated - double (* const *func1)(void *, double a); // NULL terminated - const char * const *func1_name; // NULL terminated - double (* const *func2)(void *, double a, double b); // NULL terminated - const char * const *func2_name; // NULL terminated + const double *const_values; + const char * const *const_names; // NULL terminated + double (* const *funcs1)(void *, double a); // NULL terminated + const char * const *func1_names; // NULL terminated + double (* const *funcs2)(void *, double a, double b); // NULL terminated + const char * const *func2_names; // NULL terminated void *opaque; int log_offset; void *log_ctx; @@ -132,7 +132,7 @@ struct AVExpr { static double eval_expr(Parser * p, AVExpr * e) { switch (e->type) { case e_value: return e->value; - case e_const: return e->value * p->const_value[e->a.const_index]; + case e_const: return e->value * p->const_values[e->a.const_index]; case e_func0: return e->value * e->a.func0(eval_expr(p, e->param[0])); case e_func1: return e->value * e->a.func1(p->opaque, eval_expr(p, e->param[0])); case e_func2: return e->value * e->a.func2(p->opaque, eval_expr(p, e->param[0]), eval_expr(p, e->param[1])); @@ -196,9 +196,9 @@ static int parse_primary(AVExpr **e, Parser *p) d->value = 1; /* named constants */ - for(i=0; p->const_name && p->const_name[i]; i++){ - if(strmatch(p->s, p->const_name[i])){ - p->s+= strlen(p->const_name[i]); + for(i=0; p->const_names && p->const_names[i]; i++){ + if(strmatch(p->s, p->const_names[i])){ + p->s+= strlen(p->const_names[i]); d->type = e_const; d->a.const_index = i; *e = d; @@ -269,18 +269,18 @@ static int parse_primary(AVExpr **e, Parser *p) else if( strmatch(next, "st" ) ) d->type = e_st; else if( strmatch(next, "while" ) ) d->type = e_while; else { - for(i=0; p->func1_name && p->func1_name[i]; i++){ - if(strmatch(next, p->func1_name[i])){ - d->a.func1 = p->func1[i]; + for(i=0; p->func1_names && p->func1_names[i]; i++){ + if(strmatch(next, p->func1_names[i])){ + d->a.func1 = p->funcs1[i]; d->type = e_func1; *e = d; return 0; } } - for(i=0; p->func2_name && p->func2_name[i]; i++){ - if(strmatch(next, p->func2_name[i])){ - d->a.func2 = p->func2[i]; + for(i=0; p->func2_names && p->func2_names[i]; i++){ + if(strmatch(next, p->func2_names[i])){ + d->a.func2 = p->funcs2[i]; d->type = e_func2; *e = d; return 0; @@ -434,9 +434,9 @@ static int verify_expr(AVExpr * e) { } int ff_parse_expr(AVExpr **expr, const char *s, - const char * const *const_name, - const char * const *func1_name, double (* const *func1)(void *, double), - const char * const *func2_name, double (* const *func2)(void *, double, double), + const char * const *const_names, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), int log_offset, void *log_ctx) { Parser p; @@ -455,11 +455,11 @@ int ff_parse_expr(AVExpr **expr, const char *s, p.class = &class; p.stack_index=100; p.s= w; - p.const_name = const_name; - p.func1 = func1; - p.func1_name = func1_name; - p.func2 = func2; - p.func2_name = func2_name; + p.const_names = const_names; + p.funcs1 = funcs1; + p.func1_names = func1_names; + p.funcs2 = funcs2; + p.func2_names = func2_names; p.log_offset = log_offset; p.log_ctx = log_ctx; @@ -476,28 +476,28 @@ end: return ret; } -double ff_eval_expr(AVExpr * e, const double *const_value, void *opaque) { +double ff_eval_expr(AVExpr *e, const double *const_values, void *opaque) { Parser p; - p.const_value= const_value; + p.const_values = const_values; p.opaque = opaque; return eval_expr(&p, e); } int ff_parse_and_eval_expr(double *d, const char *s, - const char * const *const_name, const double *const_value, - const char * const *func1_name, double (* const *func1)(void *, double), - const char * const *func2_name, double (* const *func2)(void *, double, double), + const char * const *const_names, const double *const_values, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), void *opaque, int log_offset, void *log_ctx) { AVExpr *e = NULL; - int ret = ff_parse_expr(&e, s, const_name, func1_name, func1, func2_name, func2, log_offset, log_ctx); + int ret = ff_parse_expr(&e, s, const_names, func1_names, funcs1, func2_names, funcs2, log_offset, log_ctx); if (ret < 0) { *d = NAN; return ret; } - *d = ff_eval_expr(e, const_value, opaque); + *d = ff_eval_expr(e, const_values, opaque); ff_free_expr(e); return isnan(*d) ? AVERROR(EINVAL) : 0; } diff --git a/libavcodec/eval.h b/libavcodec/eval.h index dae7b2c6f2..b5b3ee1056 100644 --- a/libavcodec/eval.h +++ b/libavcodec/eval.h @@ -35,21 +35,21 @@ typedef struct AVExpr AVExpr; * @param res a pointer to a double where is put the result value of * the expression, or NAN in case of error * @param s expression as a zero terminated string for example "1+2^3+5*5+sin(2/3)" - * @param const_name NULL terminated array of zero terminated strings of constant identifers for example {"PI", "E", 0} - * @param const_value a zero terminated array of values for the identifers from const_name - * @param func1_name NULL terminated array of zero terminated strings of func1 identifers - * @param func1 NULL terminated array of function pointers for functions which take 1 argument - * @param func2_name NULL terminated array of zero terminated strings of func2 identifers - * @param func2 NULL terminated array of function pointers for functions which take 2 arguments - * @param opaque a pointer which will be passed to all functions from func1 and func2 + * @param const_names NULL terminated array of zero terminated strings of constant identifers for example {"PI", "E", 0} + * @param const_values a zero terminated array of values for the identifers from const_names + * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifers + * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument + * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifers + * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments + * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2 * @param log_ctx parent logging context * @return 0 in case of success, a negative value corresponding to an * AVERROR code otherwise */ int ff_parse_and_eval_expr(double *res, const char *s, - const char * const *const_name, const double *const_value, - const char * const *func1_name, double (* const *func1)(void *, double), - const char * const *func2_name, double (* const *func2)(void *, double, double), + const char * const *const_names, const double *const_values, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), void *opaque, int log_offset, void *log_ctx); /** @@ -60,29 +60,29 @@ int ff_parse_and_eval_expr(double *res, const char *s, * The pointed to AVExpr must be freed with ff_free_expr() by the user * when it is not needed anymore. * @param s expression as a zero terminated string for example "1+2^3+5*5+sin(2/3)" - * @param const_name NULL terminated array of zero terminated strings of constant identifers for example {"PI", "E", 0} - * @param func1_name NULL terminated array of zero terminated strings of func1 identifers - * @param func1 NULL terminated array of function pointers for functions which take 1 argument - * @param func2_name NULL terminated array of zero terminated strings of func2 identifers - * @param func2 NULL terminated array of function pointers for functions which take 2 arguments + * @param const_names NULL terminated array of zero terminated strings of constant identifers for example {"PI", "E", 0} + * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifers + * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument + * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifers + * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments * @param log_ctx parent logging context * @return 0 in case of success, a negative value corresponding to an * AVERROR code otherwise */ int ff_parse_expr(AVExpr **expr, const char *s, - const char * const *const_name, - const char * const *func1_name, double (* const *func1)(void *, double), - const char * const *func2_name, double (* const *func2)(void *, double, double), + const char * const *const_names, + const char * const *func1_names, double (* const *funcs1)(void *, double), + const char * const *func2_names, double (* const *funcs2)(void *, double, double), int log_offset, void *log_ctx); /** * 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 + * @param const_values a zero terminated array of values for the identifers from ff_parse() const_names + * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2 * @return the value of the expression */ -double ff_eval_expr(AVExpr * e, const double *const_value, void *opaque); +double ff_eval_expr(AVExpr *e, const double *const_values, void *opaque); /** * Frees a parsed expression previously created with ff_parse_expr(). |