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path: root/libavutil/crc.c
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2018-03-08crc: add AV_CRC_8_SBC as a 8 bits CRC with polynomial 0x1DAurelien Jacobs
2017-11-14avutil/crc: use ff_thread_once at av_crc_get_tableMuhammad Faiz
Fix tsan warnings. Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
2016-05-11Merge commit 'd12b5b2f135aade4099f4b26b0fe678656158c13'Derek Buitenhuis
* commit 'd12b5b2f135aade4099f4b26b0fe678656158c13': build: Split test programs off into separate files Some conversions done by: James Almer <jamrial@gmail.com> Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2016-04-21Merge commit '3b08d9d932eef09403074d5af31e10d8011e840b'Derek Buitenhuis
* commit '3b08d9d932eef09403074d5af31e10d8011e840b': testprogs: K&R formatting cosmetics Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2016-04-07build: Split test programs off into separate filesDiego Biurrun
This avoids spurious library rebuilds when only the test program code is changed and simplifies the build system.
2016-03-24testprogs: K&R formatting cosmeticsDiego Biurrun
2015-10-16avutil/crc: use EINVAL instead of -1 for the return code of av_crc_init()Michael Niedermayer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-06-19avutil/crc: Fix type of p table so its content fits without overflwoingMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-18Merge commit '0983d48111f578e17e8c1967d25ce593fce62b63'Michael Niedermayer
* commit '0983d48111f578e17e8c1967d25ce593fce62b63': crc: add ANSI CRC16 LE Conflicts: doc/APIchanges libavutil/crc.c libavutil/crc.h libavutil/version.h tests/ref/fate/crc Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-17crc: add ANSI CRC16 LEAlessandro Ghedini
This adds the reversed byte-order version of the ANSI CRC16. Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-07-10add crc24 tablesPaul B Mahol
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2013-06-01avutil/crc: Dont limit CRC32 standard tablesJames Almer
Currently, standard tables like AV_CRC_32_IEEE and such are being generated (or provided in case the user compiles with hardcoded tables) with only 257 elements. We're missing a considerable boost in performance by not making them with a size of 1024 elements instead. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-12Merge commit '62a43d30cc3b9b2460f2c926beb522df32493625'Michael Niedermayer
* commit '62a43d30cc3b9b2460f2c926beb522df32493625': crc: Move static data table from header to .c file avcodec/rectangle: Remove nonsense assert Conflicts: libavcodec/rectangle.h libavutil/crc_data.h The assert is not removed as the assert ensures clear and easy to debug failures instead of undefined behavior in case of misalignment. Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-11crc: Move static data table from header to .c fileDiego Biurrun
Having static data tables in header files is a potential source of trouble.
2012-12-05Merge commit 'cb45553f577f8e0ebfe05d3287e1b6fa5859b967'Michael Niedermayer
* commit 'cb45553f577f8e0ebfe05d3287e1b6fa5859b967': Remove pointless #undefs of previously forbidden functions. fate: Add dependencies for bmp, cdxl, dfa, mp3 Conflicts: doc/examples/muxing.c libavfilter/filtfmts.c libavutil/des.c libavutil/eval.c libavutil/log.c libavutil/parseutils.c tests/fate/mp3.mak Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-05Remove pointless #undefs of previously forbidden functions.Anton Khirnov
2012-11-03Merge commit '9221efef7968463f3e3d9ce79ea72eaca082e73f'Michael Niedermayer
* commit '9221efef7968463f3e3d9ce79ea72eaca082e73f': lavf: fix av_interleaved_write_frame() doxy. lavf: clarify the lifetime of demuxed packets. avconv: do not free muxed packet on streamcopy. crc: move doxy to the header vf_drawtext: do not use deprecated av_tree_node_size x86: Refactor PSWAPD fallback implementations and port to cpuflags Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-02crc: move doxy to the headerAnton Khirnov
2011-12-05Merge remote-tracking branch 'qatar/master'Michael Niedermayer
* qatar/master: adpcmenc: cosmetics: pretty-printing ac3dec: cosmetics: pretty-printing yuv4mpeg: cosmetics: pretty-printing shorten: remove dead initialization roqvideodec: set AVFrame reference before reget_buffer. bmp: fix some 1bit samples. latmdec: add fate test for audio config change oma: PCM support oma: better format detection with small probe buffer oma: clearify ambiguous if condition wavpack: Properly clip samples during lossy decode Code clean-up for crc.c, lfg.c, log.c, random_see.d, rational.c and tree.c. Cleaned pixdesc.c file in libavutil zmbv.c: coding style clean-up. xan.c: coding style clean-up. mpegvideo.c: code cleanup - first 500 lines. Conflicts: Changelog libavcodec/adpcmenc.c libavcodec/bmp.c libavcodec/zmbv.c libavutil/log.c libavutil/pixdesc.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-04Code clean-up for crc.c, lfg.c, log.c, random_see.d, rational.c and tree.c.Yordan Makariev
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-10-10Merge remote-tracking branch 'qatar/master'Michael Niedermayer
* qatar/master: mpeg4dec: use unsigned type for startcode in ff_mpeg4_decode_picture_header mpeg124: use sign_extend() function ac3dec: use get_sbits() instead of manually sign-extending 4xm: fix signed overflow wmavoice: fix a signed overflow mpegvideo_enc: fix a signed overflow crc: fix signed overflow fate: run avconv with -nostats flag avtools: add -v as alias for -loglevel avconv: always print stats with AV_LOG_INFO doc/avconv: add forgotten output/per-stream info to -filter avconv: add -stats option to enable/disable printing encoding progress avconv: in output_packet() don't set decoded_data_size for video. avconv: remove pointless always true condition avconv: factorize common code in transcode_init() zmbv: remove memcpy() of decoded frame mpeg12enc: use sign_extend() function h264pred: use unsigned types for pixel values, fix signed overflows h264: fix signed overflows in x*0x01010101 expressions h264pred: remove unused variables Conflicts: avconv.c tests/fate-run.sh Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-09crc: fix signed overflowMans Rullgard
This fixes a signed overflow from i << 24 when i == 255 by making i unsigned. The result of the shift is already assigned to an variable of unsigned type. Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19Replace FFmpeg with Libav in licence headersMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2010-07-11Add av_ prefix to bswap macrosMåns Rullgård
Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-11bswap: change ME to NE in macro namesMåns Rullgård
Other parts of FFmpeg use NE (native endian) rather than ME (machine). This makes it consistent. Originally committed as revision 24169 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-02Fix parameter name and position in av_crc_init Doxygen documentation.Diego Biurrun
Originally committed as revision 23981 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-30Fix grammar errors in documentationMåns Rullgård
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-09Replace many includes of libavutil/common.h with what is actually neededMåns Rullgård
This reduces the number of false dependencies on header files and speeds up compilation. Originally committed as revision 22407 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-12Fix cast of byte buffer to uint32 that was disregarding alignmentJeff Downs
requirements. Now calculates crc byte at a time until aligned, then continues with uint32 optimized calculation. This fixes crashes during mlp decoding on sparc (at least, maybe others). Originally committed as revision 19160 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-29spelling/grammar/consistency review part IIIDiego Biurrun
Originally committed as revision 16849 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-28spelling/grammar/consistency review part IDiego Biurrun
Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-14Change semantic of CONFIG_*, HAVE_* and ARCH_*.Aurelien Jacobs
They are now always defined to either 0 or 1. Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-12Add necessary, remove unnecessary #includes.Diego Biurrun
Originally committed as revision 16547 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-22uses FF_ARRAY_ELEMS() where appropriateAurelien Jacobs
Originally committed as revision 15662 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-02-01Dont cast const away.Michael Niedermayer
Originally committed as revision 11700 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-01-10Fix a couple of 'return type defaults to int' and 'control reaches end ofDiego Biurrun
non-void function' warnings in test code. Originally committed as revision 11491 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-01-07Fix access to the last element of the table.Aurelien Jacobs
(size of the table vs. number of elements in the table) Originally committed as revision 11448 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-01-05improve CRC APIAurelien Jacobs
- don't export any global var - provide either generated or hardcoded tables Originally committed as revision 11409 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-11-23main() --> main(void)Diego Biurrun
Originally committed as revision 11079 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-20Additional documentation for CRC functionsReimar Döffinger
Originally committed as revision 10151 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-19Use defines instead of raw hex numbers to specify CRC polynomialsReimar Döffinger
Originally committed as revision 10143 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-14kill 3 more av_mallocz_static()Michael Niedermayer
Originally committed as revision 8397 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-07Change license headers to say 'FFmpeg' instead of 'this program/this library'Diego Biurrun
and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-09-10Add official LGPL license headers to the files that were missing them.Diego Biurrun
Originally committed as revision 6219 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-07-09put the code which is specific for the large crc table under #ifndef ↵Michael Niedermayer
CONFIG_SMALL Originally committed as revision 5676 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-03-06generic crc calculation codeMichael Niedermayer
Originally committed as revision 5115 to svn://svn.ffmpeg.org/ffmpeg/trunk
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