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lavu/eval: add if() and ifnot() eval functions

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They allow to implement the if/then/else logic, which cannot be
implemented otherwise.

For example the expression:
A*B + not(A)*C

always evaluates to NaN if B is NaN, even in the case where A is 0.
This commit is contained in:
Stefano Sabatini
2012-01-15 22:59:42 +01:00
parent a798c20a76
commit 999495734b
4 changed files with 28 additions and 3 deletions
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libavutil/avutil.h
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@@ -155,7 +155,7 @@
#define LIBAVUTIL_VERSION_MAJOR 51
#define LIBAVUTIL_VERSION_MINOR 34
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_MICRO 101
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \