Commit Graph

21 Commits

Author SHA1 Message Date
Marvin Scholz 8bac3902b0 avutil/lfg: Minor doxy improvements
Use inline code for sizeof and use proper @return directive.
2022-10-17 09:56:47 +02:00
Marvin Scholz 6a1ad7a752 avutil/lfg: Add doxy for missing argument 2022-10-17 09:56:47 +02:00
Rémi Denis-Courmont a90e5335b3 avutil/lfg: fix comment typo 2022-09-15 20:56:23 +05:30
Michael Niedermayer 6014bcf1b7 avutil/lfg: Correct index increment type to avoid undefined behavior
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 18333/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_COMFORTNOISE_fuzzer-5668481831272448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-24 22:58:59 +01:00
Michael Niedermayer d6fea2ef22 avutil/lfg: Document the AVLFG struct
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-09 16:10:02 +01:00
Jonathan Campbell 76c5a69e26 libavutil: add av_lfg_init_from_data() function
seeds an AVLFG from binary data.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-01-22 02:28:53 +01:00
Michael Niedermayer 55c49afc42 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  yuv4mpeg: return proper error codes.
  Give all anonymously typedeffed structs in headers a name
  fate: Add parseutils test
  parseutils-test: Drop random colors from parsing test
  vf_pad/scale: use double precision for aspect ratios.
  build: error on variable-length arrays
  ppc: swscale: rework yuv2planeX_altivec()
  ppc: fmtconvert: kill VLA in float_to_int16_interleave_altivec()
  x86: dsputil: kill VLA in gmc_mmx()
  libspeexenc: Updated commentary to reflect recent changes
  libspeexenc: Add an option for enabling DTX
  doc/APIchanges: fill in missing dates and hashes.
  lavr: bump major to 1 and declare it stable.
  lavr: change the type of the data buffers to uint8_t**.
  lavc: deprecate the audio resampling API.

Conflicts:
	cmdutils.h
	configure
	doc/APIchanges
	ffplay.c
	libavcodec/dwt.h
	libavcodec/libspeexenc.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavformat/asf.h
	tests/fate/libavutil.mak
	tests/ref/fate/parseutils

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-06 13:45:08 +02:00
Diego Biurrun e4cbf7529b Give all anonymously typedeffed structs in headers a name
Anonymous structs cannot be forward declared and have no benefit.
2012-10-06 09:27:11 +02:00
Michael Niedermayer 976a8b2179 Merge remote-tracking branch 'qatar/master'
* qatar/master: (40 commits)
  H.264: template left MB handling
  H.264: faster fill_decode_caches
  H.264: faster write_back_*
  H.264: faster fill_filter_caches
  H.264: make filter_mb_fast support the case of unavailable top mb
  Do not include log.h in avutil.h
  Do not include pixfmt.h in avutil.h
  Do not include rational.h in avutil.h
  Do not include mathematics.h in avutil.h
  Do not include intfloat_readwrite.h in avutil.h
  Remove return statements following infinite loops without break
  RTSP: Doxygen comment cleanup
  doxygen: Escape '\' in Doxygen documentation.
  md5: cosmetics
  md5: use AV_WL32 to write result
  md5: add fate test
  md5: include correct headers
  md5: fix test program
  doxygen: Drop array size declarations from Doxygen parameter names.
  doxygen: Fix parameter names to match the function prototypes.
  ...

Conflicts:
	libavcodec/x86/dsputil_mmx.c
	libavformat/flvenc.c
	libavformat/oggenc.c
	libavformat/wtv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-04 00:45:21 +02:00
Diego Biurrun ff993cd7fc doxygen: Drop array size declarations from Doxygen parameter names.
Adding [] to a Doxygen parameter name clashes with Doxygen syntax.
2011-07-03 18:30:02 +02:00
Mans Rullgard 2912e87a6c Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
Diego Biurrun e51f04968e Restore array sizes in doxygen parameter names.
Originally committed as revision 24108 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-08 13:35:46 +00:00
Diego Biurrun 3fa7626863 Avoid square brackets in Doxygen comments; Doxygen chokes on them.
Originally committed as revision 23979 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-02 11:44:58 +00:00
Måns Rullgård 49bd8e4b84 Fix grammar errors in documentation
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-30 15:38:06 +00:00
Stefano Sabatini 3ba69a15c6 Implement av_bmg_next(), a Box-Muller Gaussian random generator.
See the thread:
"[FFmpeg-devel] [PATCH] Box-Muller gaussian generator".

Originally committed as revision 20808 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-12 16:24:37 +00:00
Diego Biurrun 89c9ff504b spelling/grammar/consistency review part I
Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-28 00:16:05 +00:00
Stefano Sabatini 987903826b Globally rename the header inclusion guard names.
Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +00:00
Michael Niedermayer f39e8b03c8 1000l typo my new PRNG converged to -1.
Originally committed as revision 14479 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-30 23:17:41 +00:00
Michael Niedermayer 310d442456 Add a multiplicative LFG for those thinking the additive is not good
enough, just 4 lines of code.

Originally committed as revision 14478 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-30 23:08:07 +00:00
Michael Niedermayer 2cf3c8632c Document av_lfg_get().
Originally committed as revision 14461 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 15:47:06 +00:00
Michael Niedermayer 2754fe8ba5 Simple lagged fibonacci PRNG.
3.5 times faster than our mersene twister.
10 times less memory needed. (=less cache trashing)

Originally committed as revision 14458 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 15:35:04 +00:00