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| author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-06-06 15:00:25 +0200 |
|---|---|---|
| committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-06-07 00:37:00 +0200 |
| commit | d58ed64a8953d07f33259317a2ea5856d0c91dfd (patch) | |
| tree | 5ee73582d6bf13b685a9b09b771e9dc624ed7a80 /libavutil/eval.c | |
| parent | 263f57c6d76b27e1895c4001f815824a463b1592 (diff) | |
| download | ffmpeg-d58ed64a8953d07f33259317a2ea5856d0c91dfd.tar.gz | |
eval: add support for pow() function
It is a more search-friendly alternative to the ^ operator.
Diffstat (limited to 'libavutil/eval.c')
| -rw-r--r-- | libavutil/eval.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavutil/eval.c b/libavutil/eval.c index 331221515e..5ae90f06d1 100644 --- a/libavutil/eval.c +++ b/libavutil/eval.c @@ -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 }; |