FFmpeg

Commit Graph

Author	SHA1	Message	Date
Marton Balint	d884606ce0	avutil/rational: never return greater num/den than the maximum allowed in av_d2q This reverts `887d74c47e`, because it ignores the maximum allowed numerator/denominator. Even if the result was rounded to zero or infinity, it should not be cause to ignore the maximum allowed number, this "feature" is unintuitive and undocumented. Signed-off-by: Marton Balint <cus@passwd.hu>	3 months ago
Marton Balint	8fccd6d510	avutil/rational: increase av_d2q precision Fixes parsing small timebases from expressions (where the expression API converts the result to double), like in this command line: ffprobe -f lavfi -i testsrc=d=1,settb=1/2000000000 -show_streams -show_entries stream=time_base Before the patch timebase was parsed as 1/1999999999. Signed-off-by: Marton Balint <cus@passwd.hu>	1 year ago
Nicolas George	6b65c4ec54	lavu: add av_gcd_q().	5 years ago
Ganesh Ajjanagadde	7dabc78ce1	lavu/rational: add more info regarding floor(x+0.5) usage Add some more verbose info regarding why the imprecise and slow floor(x+0.5) hack is used; helpful for future maintenance. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanag@gmail.com>	9 years ago
Michael Niedermayer	97b8db334a	avutil/rational: Test av_rescale_rnd() with combinations of "special" values Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Ganesh Ajjanagadde	8d9f86bd37	avutil/rational: use frexp rather than ad-hoc log to get floating point exponent This simplifies and cleans up the code. Furthermore, it is much faster due to absence of the slow log computation. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>	9 years ago
Michael Niedermayer	1fb9b2a283	avutil: Add av_q2intfloat() This function allows writing AVRationals as IEEE floats without the need of platform dependant float operations Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	827af24230	avutil/rational: Check that av_reduce() returns values within the requested max Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	cd7037dd7a	avutil/rational: av_add_stable() test code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	46ad287a2a	avutil/rational: avoid llrint() and rint() This should workaround issues with these functions on ia64 and sparc64 Fixes Ticket2713 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	887d74c47e	av_d2q: Add a special case for \|value\| > MAX and \|value\| < 1/MAX Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	d480b36db4	av_d2q: Avoid llrint(), its not correctly implemented in old netbsd This should fix some fate failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	64eacb839e	av_d2q: fix rounding for negative values Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	de7d290631	av_d2q: Fix infinity check The old check would fail on huge but not infinite values and the later code could then fail to handle them correctly in some cases. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	d46c588f3c	Remove commented-out #includes	12 years ago
Michael Niedermayer	0efcf16a3e	replace av_log(0, by av_log(NULL, The first parameter is a pointer and NULL is more correct Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	6204ea17f1	rational: test add/sub too Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	80391552c9	libavutil: Remove pointless rational test program.	13 years ago
Yordan Makariev	425b45d4b0	Code clean-up for crc.c, lfg.c, log.c, random_see.d, rational.c and tree.c. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Diego Biurrun	812f2376ee	rational-test: Add proper main() declaration to fix gcc warnings.	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Michael Niedermayer	59a3bf0e51	Add selftest code for av_cmp_q(). Originally committed as revision 25339 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Stefano Sabatini	6b4ed22f75	Make av_d2q() manage the case in which the value to convert is inf. Originally committed as revision 25332 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Stefano Sabatini	1405782cf4	Avoid cast of double nan to int. It may cause exceptions on some platform. Originally committed as revision 25311 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	b64b4134d5	Rename libavutil/assert.h to avassert.h This avoids conflicts with the system assert.h. Originally committed as revision 25284 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Michael Niedermayer	b926b6282d	av_assert() system. With this the developer can now choose if he wants an assert always enabled or at which compile time assert level. This can thus replace the #define NDEBUG hacks Originally committed as revision 25278 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
David Conrad	31fdd64194	Convert NaN to 0/0 in av_d2q This fixes aspect ratio calculation for encoding from files with 0/0 stored, common with ogg/theora Originally committed as revision 23280 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Biurrun	ba87f0801d	Remove explicit filename from Doxygen @file commands. Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Biurrun	bad5537e2c	Use full internal pathname in doxygen @file directives. Otherwise doxygen complains about ambiguous filenames when files exist under the same name in different subdirectories. Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	674bd4f691	cosmetics: Use 'num' instead of 'nom' as abbreviation for numerator. Originally committed as revision 16910 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	89c9ff504b	spelling/grammar/consistency review part I Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	dfcb6b56f9	Directly #include a bunch of indirectly #included headers. Originally committed as revision 16748 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Aurelien Jacobs	9ce6c13879	export gcd function as av_gcd() Originally committed as revision 16653 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Stefano Sabatini	05b90fc0c5	Implement av_nearer_q() and av_find_nearest_q_idx() functions. Originally committed as revision 15415 to svn://svn.ffmpeg.org/ffmpeg/trunk	17 years ago
Diego Biurrun	e5a389a1b7	license header consistency cosmetics Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Dujardin Bernard	0b0065992e	move doxy comments from rational.c to rational.h and add some new comments patch by Dujardin Bernard %dujardin P iut A numericable P fr% Originally committed as revision 8132 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	6880edab82	fix av_reduce() with things like 1/0 and 0/0 Originally committed as revision 7431 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	62b9fc1571	fix overflow and remove wrong comment Originally committed as revision 7187 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Michael Niedermayer	3db1b8b538	return optimal fraction based on a patch by Uoti Urpala Originally committed as revision 7186 to svn://svn.ffmpeg.org/ffmpeg/trunk	18 years ago
Diego Biurrun	c26abfa541	Rename ABS macro to FFABS. Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Diego Biurrun	b78e7197a8	Change license headers to say 'FFmpeg' instead of 'this program/this library' and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	79dc59b726	simplify Originally committed as revision 5802 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Michael Niedermayer	0912bf577a	for floats fabs is better & smaller then ABS Originally committed as revision 5801 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Diego Biurrun	5509bffa88	Update licensing information: The FSF changed postal address. Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Diego Biurrun	115329f160	COSMETICS: Remove all trailing whitespace. Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk	19 years ago
Alexander Strasser	c11c2bc20b	libavutil: Utility code from libavcodec moved to a separate library. Originally committed as revision 4489 to svn://svn.ffmpeg.org/ffmpeg/trunk	20 years ago
Michael Niedermayer	5c07b9e914	more comments Originally committed as revision 3317 to svn://svn.ffmpeg.org/ffmpeg/trunk	21 years ago
Michael Niedermayer	bf63eb4bba	av_d2q() documentation Originally committed as revision 2522 to svn://svn.ffmpeg.org/ffmpeg/trunk	22 years ago
Michael Niedermayer	33a6984b8c	BSD doesnt have log2 Originally committed as revision 2407 to svn://svn.ffmpeg.org/ffmpeg/trunk	22 years ago
Michael Niedermayer	5ff85f1d8b	AVRational sample_aspect_ratio aspect ratio in JPEG JFIF is SAR not DAR ! removed nonsense SAR guessing code various related cleanups bugs? Originally committed as revision 2403 to svn://svn.ffmpeg.org/ffmpeg/trunk	22 years ago

50 Commits (1d55f548466516a6a4ed4cc67e118e1c29c6ae5a)