FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	278fea3664	avutil/eval: Use even better PRNG This is the 64bit version of Chris Doty-Humphreys SFC64 Compared to the LCGs these produce much better quality numbers. Compared to LFGs this needs less state. (our LFG has 224 byte state for its 32bit version) this has 32byte state Also the initialization for our LFG is slower. This is also much faster than KISS or PCG. This commit replaces the broken LCG used before. (broken as it had only a period ~200M due to being put in a double) This changes the output from random() which is why libswresample.mak is updated, update was done using the command in libswresample.mak Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	1 year ago
Michael Niedermayer	b50bd69516	avutil/eval-test: Check av_expr_parse_and_eval() for failure and also check it in the fate test Fixes CID1361940 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Stefano Sabatini	f3e886c7df	lavu/eval: add clip function	11 years ago
Clément Bœsch	77f60f0011	lavu/eval: add between() function.	12 years ago
Stefano Sabatini	72a1257b5b	tests/eval: fix reference after `b2098d2417` +10l to me, I blame the aliens.	12 years ago
Stefano Sabatini	b2098d2417	lavu/eval: add bitor and bitand functions Warning note suggested by Reimar.	12 years ago
Michael Niedermayer	29c8619a49	fate: add print() to the tests of eval Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Stefano Sabatini	2ed0803c6c	lavu/eval: extend if/ifnot functions to accept a third parameter Add support to an if/else construct, simplify logic in expressions.	12 years ago
Justin Ruggles	5312268b34	eval: treat dB as decibels instead of decibytes	12 years ago
Michael Niedermayer	25a21c587c	eval-test: add some otherwise untested functions. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Janne Grunau	2d497c141d	eval: add gt(), gte(), lt() and lte() fate tests	13 years ago
Max Lazarov	caac3ab6ef	eval: fix swapping of lt() and lte() CC: libav-stable@libav.org	13 years ago
Martin Storsjö	143f1e9203	eval: Add the isinf() function and tests for it Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
maxlazarov	7a3df014b9	The lt and lte functions were swapped.	13 years ago
Michael Niedermayer	59affed23c	eval: add root() to solve f(x)=0 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	923092697a	eval: Allow specifying the variable id. Reviewed-by: Nicolas George <nicolas.george@normalesup.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	43b1943a55	eval: Add taylor series evaluation support. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Stefano Sabatini	999495734b	lavu/eval: add if() and ifnot() eval functions They allow to implement the if/then/else logic, which cannot be implemented otherwise. For example the expression: AB + not(A)C always evaluates to NaN if B is NaN, even in the case where A is 0.	13 years ago
Anton Khirnov	775af761a0	eval: test isnan(sqrt(-1)) instead of just sqrt(-1) sqrt(-1) returns "some NaN", it's not specified which exactly.	14 years ago
Stefano Sabatini	8cee38a298	eval: implement not() expression	14 years ago
Stefano Sabatini	9bc393908a	eval: add sqrt function for computing the square root	14 years ago
Ronald S. Bultje	dfd8116986	eval: add missing comma to tests.	14 years ago
Michael Niedermayer	16a565d0cb	eval/fate: try to fix nan printing format failures. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Mans Rullgard	94350ab986	eval: clear Parser instances before using This prevents random values from the stack being used as "variables" in expressions. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	883fd9e393	eval: add fate test Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago

31 Commits (fe340c324483c9666a502fa23fa971ab75c6ef19)