1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-02 03:06:28 +02:00
Commit Graph

33 Commits

Author SHA1 Message Date
Michael Niedermayer
09ece9fa6c eval: print() support
This allows printing values via av_log from expressions.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-17 17:36:27 +01:00
Stefano Sabatini
dcfbe1e0b6 doc/eval: sort functions by name 2013-01-31 12:12:15 +01:00
Stefano Sabatini
41e5e28daf doc/eval: fix/extend documentation for taylor() function 2013-01-31 12:09:47 +01:00
Stefano Sabatini
d99bc84752 doc/eval: fix/extend documentation for root() function 2013-01-31 12:09:13 +01:00
Stefano Sabatini
c89a8ee23d doc/eval: fix/review the section about SI prefixes and usage
In particular, prefer "prefix" to "postfix" as in the tool manuals, and
specify powers of 2 and 10 explicitly.

This is based on the commit:
commit 2bf794b698
Author: Marcus Stollsteimer <sto.mar@web.de>
Date:   Mon Nov 19 21:39:20 2012 +0100
2013-01-24 12:26:21 +01:00
Stefano Sabatini
ca1bc188f4 doc/eval: fix documentation for time() function 2013-01-24 12:26:21 +01:00
Stefano Sabatini
2b207bab19 doc/eval: substitute if/then/else construct with an example making use of boolean expression composition
Since the if/then/else construct is now supported natively, showing how
to compose such a construct from basic primitives is misleading.
2013-01-24 12:19:02 +01:00
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.
2013-01-24 12:19:01 +01:00
Michael Niedermayer
31cd1e20bb eval: add function to access the current "wallclock" time.
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-23 22:22:53 +01:00
Stefano Sabatini
4a91962771 doc/eval: add missing documentation of functions 2012-08-22 01:03:48 +02:00
Michael Niedermayer
039e9fe01c Merge remote-tracking branch 'qatar/master'
* qatar/master: (29 commits)
  lavfi: reclassify showfiltfmts as a TESTPROG
  graph2dot: fix printf format specifier
  swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32.
  vp8: loopfilter >=sse2 functions need aligned stack on x86-32.
  amr: remove shift out of the AMR_BIT() macro.
  dsputilenc: group yasm and inline asm function pointer assignment.
  mov: use forward declaration of a function instead of a table.
  Clarify Doxygen comment for FF_API_* #defines.
  configure: simplify get_version()
  Create version.h headers for libraries that lack them
  gitignore: Use full path instead of relative path to specify patterns
  mpegvideo: remove VLAs
  Add XTEA encryption support in libavutil
  Add Blowfish encryption support in libavutil
  eval: Add the isinf() function and tests for it
  flacdec: move lpc filter to flacdsp
  flacdec: split off channel decorrelation as flacdsp
  avplay: Add an option for not limiting the input buffer size
  FATE: add a test for WMA cover art.
  FATE: add a test for apetag cover art
  ...

Conflicts:
	.gitignore
	configure
	ffplay.c
	libavcodec/Makefile
	libavcodec/error_resilience.c
	libavcodec/mpegvideo.c
	libavcodec/ratecontrol.c
	libavdevice/avdevice.h
	libavfilter/Makefile
	libavfilter/filtfmts.c
	libavfilter/version.h
	libavformat/mov.c
	libavformat/version.h
	libavutil/Makefile
	libavutil/avutil.h
	libavutil/version.h
	libswscale/swscale.h
	libswscale/x86/swscale_mmx.c
	tests/fate/libavutil.mak
	tests/lavfi-regression.sh
	tools/graph2dot.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-04 21:03:28 +02:00
Martin Storsjö
143f1e9203 eval: Add the isinf() function and tests for it
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-04 15:10:56 +03:00
Michael Niedermayer
59affed23c eval: add root() to solve f(x)=0
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-27 00:00:55 +01:00
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>
2012-02-26 22:12:17 +01:00
Michael Niedermayer
43b1943a55 eval: Add taylor series evaluation support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-22 23:09:47 +01:00
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
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
Diego Biurrun
da9cea77e3 Fix a bunch of common typos. 2011-12-11 00:32:25 +01:00
Michael Niedermayer
cdba9b617f eval.texi: document that variables are not shared between expressions.
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
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).
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
8cee38a298 eval: implement not() expression 2011-09-19 12:38:34 +02:00
Stefano Sabatini
9bc393908a eval: add sqrt function for computing the square root 2011-09-19 12:38:14 +02:00
Stefano Sabatini
d58ed64a89 eval: add support for pow() function
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
5ae4251c3b eval: add support for trunc, ceil, and floor functions
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2011-04-10 09:24:21 +02:00
Stefano Sabatini
25601bc564 eval: add support for trunc, ceil, and floor functions
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/"
This reverts commit f8a45fa1b1.

Conflicts:

	doc/optimization.txt
2011-03-17 17:26:45 +01:00
Janne Grunau
f8a45fa1b1 replace FFmpeg with Libav in doc/
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.
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.
Originally committed as revision 25665 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-03 19:43:55 +00:00