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eval: add support for pow() function

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It is a more search-friendly alternative to the ^ operator.
This commit is contained in:
Stefano Sabatini
2011-06-06 15:00:25 +02:00
parent 263f57c6d7
commit d58ed64a89
3 changed files with 10 additions and 1 deletions
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5
libavutil/eval.c
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@@ -290,6 +290,7 @@ static int parse_primary(AVExpr **e, Parser *p)
else if (strmatch(next, "trunc" )) d->type = e_trunc;
else if (strmatch(next, "sqrt" )) d->type = e_sqrt;
else if (strmatch(next, "not" )) d->type = e_not;
else if (strmatch(next, "pow" )) d->type = e_pow;
else {
for (i=0; p->func1_names && p->func1_names[i]; i++) {
if (strmatch(next, p->func1_names[i])) {
@@ -643,6 +644,10 @@ int main(void)
"not(1)",
"not(NAN)",
"not(0)",
"pow(0,1.23)",
"pow(PI,1.23)",
"PI^1.23",
"pow(-1,1.23)",
NULL
};