Stefano Sabatini
e4e291061c
doc/eval.texi: add precisation about the assumption for "trueness" in conditional expressions
2012-01-17 12:03:30 +01:00
Stefano Sabatini
999495734b
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.
2012-01-17 12:03:30 +01:00
Michael Niedermayer
cdba9b617f
eval.texi: document that variables are not shared between expressions.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-10 23:36:30 +01:00
root
551b9eb9ef
docs: Spelling fixes to 9 texi files from /doc
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credits to: Violet Lin (from Google Code-in)
Signed-off-by: burek <burek021@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-29 18:26:06 +01:00
Nicolas George
40963ea9e9
eval: add mathematical constants (PI, E, PHI).
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Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-13 16:50:20 +02:00
Clément Bœsch
d557152285
eval: document recently added random(), hypot(), gcd().
2011-10-11 07:31:40 +02:00
Stefano Sabatini
d58ed64a89
eval: add support for pow() function
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It is a more search-friendly alternative to the ^ operator.
2011-06-07 00:37:00 +02:00
Stefano Sabatini
3c2c52baec
eval: implement not() expression
2011-05-25 12:42:19 +02:00
Stefano Sabatini
e5272e729e
eval: add sqrt function for computing the square root
2011-05-05 18:38:35 +02:00
Stefano Sabatini
25601bc564
eval: add support for trunc, ceil, and floor functions
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Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
2011-04-05 15:34:16 +02:00
Michael Niedermayer
a6be21d3ba
Revert "replace FFmpeg with Libav in doc/"
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This reverts commit f8a45fa1b1
2011-03-17 17:26:45 +01:00
Janne Grunau
f8a45fa1b1
replace FFmpeg with Libav in doc/
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unless it stands for ffmpeg the program or is historic
2011-03-16 22:01:01 +01:00
Stefano Sabatini
20fcd0797e
Implement isnan() function evaluation.
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Originally committed as revision 25666 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-03 19:44:00 +00:00
Stefano Sabatini
07851d7936
Add eval.texi file.
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Originally committed as revision 25665 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-03 19:43:55 +00:00
