FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	9c49d5908d	avutil/hmac: silence pointer type warnings Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Giorgio Vazzana	d0a34aeedf	md5: optimize second round by using 4-operation form of G() 4-operation form is preferred over 3-operation because it breaks a long dependency chain, thus allowing a superscalar processor to execute more operations in parallel. The idea was taken from: http://www.zorinaq.com/papers/md5-amd64.html AMD Athlon(tm) II X3 450 Processor, x86_64 $ for i in $(seq 1 4); do ./avutil_md5_test2; done size: 1048576 runs: 1024 time: 5.821 +- 0.019 size: 1048576 runs: 1024 time: 5.822 +- 0.019 size: 1048576 runs: 1024 time: 5.841 +- 0.018 size: 1048576 runs: 1024 time: 5.821 +- 0.018 $ for i in $(seq 1 4); do ./avutil_md5_test2; done size: 1048576 runs: 1024 time: 5.646 +- 0.019 size: 1048576 runs: 1024 time: 5.646 +- 0.018 size: 1048576 runs: 1024 time: 5.642 +- 0.019 size: 1048576 runs: 1024 time: 5.641 +- 0.019 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Reimar Döffinger	24c65eb29f	md5: avoid unnecessary copying. Where necessary use memcpy instead. Thanks to Giorgio Vazzana [mywing81 gmail] for spotting this loop as the cause for the bad performance. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	12 years ago
Anton Khirnov	40020e171a	doxy: add a section about versioning.	12 years ago
Anton Khirnov	bc8c1cdc7b	lavfi doxy: add a page for lavfi.	12 years ago
Paul B Mahol	3a751eab78	lavu/opt: add AV_OPT_TYPE_COLOR Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
James Almer	b22f96b736	Rename ffadler to ffhash and expand it using the generic hash API Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
James Almer	35188e91ef	lavu/hash: Fix CRC32 calculation Initialize it with UINT32_MAX and xor the result with UINT32_MAX as well. Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
James Almer	c55c715c81	lavu/hash: Fix adler32 calculation Adler must be initialized with a non zero value. Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	d46c588f3c	Remove commented-out #includes	12 years ago
Michael Niedermayer	e003413fe9	murmur3: fix memleak Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c7c71f95f8	replace remaining PIX_FMT_* flags with AV_PIX_FMT_FLAG_* Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	e6c4ac7b5f	pixdesc: rename PIX_FMT_* flags to AV_PIX_FMT_FLAG_*	12 years ago
Kieran Kunhya	ede75ebc9b	Clarify output of av_get_bits_per_pixel Signed-off-by: Anton Khirnov <anton@khirnov.net>	12 years ago
James Almer	dc7656279a	lavu/hash: Fix name of SHA224 Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Reimar Döffinger	7d1d596817	Add a generic hash API. Also use this API in framemd5. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	12 years ago
Reimar Döffinger	86215c326e	Add 128 bit murmur3 hash function. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	12 years ago
Clément Bœsch	b3c263e209	lavu/common: make FF_CEIL_RSHIFT faster when shift is constant. See "[PATCH] lavfi/lut: use FF_CEIL_RSHIFT for chroma w/h rounding." thread for more information.	12 years ago
Stefano Sabatini	e3984166a4	lavu/mem: add av_dynarray2_add() Based on a patch by Clément Bœsch. See thread: From: Clément Bœsch <ubitux@gmail.com> Subject: [FFmpeg-devel] [PATCH 1/5] lavu: add av_dynarray_alloc_elem(). Date: Sun, 14 Apr 2013 03:07:54 +0200	12 years ago
Stefano Sabatini	84be806982	lavu: define FF_MEMORY_POISON and use it Allow single-place definition of constant used to fill poisoned memory.	12 years ago
Stefano Sabatini	eeb9a4928d	lavu/mem.h: fix typo	12 years ago
Clément Bœsch	570d63eef3	lavu: add FF_CEIL_RSHIFT and use it in various places.	12 years ago
Michael Niedermayer	3d66ce17b7	tools: Add adler32 checksum tool This is about 6 times faster than md5sum on linux Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Stefano Sabatini	ee9794ed20	lavu/mem: fix potential int overflow and crash in av_dynarray_add() Also extend documentation accordingly.	12 years ago
Stefano Sabatini	c773adee3f	lavu/mem: extend documentation for av_dynarray_add() In particular, mention the fact that the amortized element addition cost is constant.	12 years ago
Martin Storsjö	06122c2533	msvc: Move linker pragma from config.h to libavutil/internal.h This makes linking succeed for tools that include config.h but don't link to libavutil. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Michael Niedermayer	2efbbc4644	avutil/av_pix_fmt_swap_endianness: simplify and fix code This makes the code also more robust, not having a hard-coded table that can become (and was) incomplete. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Janne Grunau	74652af821	pixdesc: add function to return pixel format with swapped endiannes	12 years ago
highgod0401	41aa199998	lavu/opencl_internal: use av_opencl_errstr Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
highgod0401	548101b553	lavu/opencl: add opencl public error API Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	1fda184a85	avutil: Add av_cold attributes to init functions missing them	12 years ago
Paul B Mahol	e6d4e68755	lavu: add planar 16 bit and 8 bit rgb with alpha Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Christophe Gisquet	566b7a20fd	x86: float dsp: butterflies_float SSE 97c -> 49c Some codecs could benefit from more unrolling, but AAC doesn't.	12 years ago
highgod0401	6354a6ce52	lavu/opencl: fix bug of opencl options Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	89b5039ff2	avutil/mem: add av_memdup() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	7edb984dd0	avutil/log: Fix context pointer used for get_category() Fixes calling a random pointer Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Derek Buitenhuis	af8a47905a	avutil: doxy: Small clarification for av_buffer_create() Explicitly saying it can't hurt. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Diego Biurrun	f5eecee865	ppc: util_altivec: Surround AltiVec-related code by appropriate ifdefs This prevents non-AltiVec-enabled compilers from choking.	12 years ago
highgod0401	df9117921a	lavu/opencl: add check version and platform Reviewed-by: Hanspeter Niederstrasser <niederstrasser@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Stefano Sabatini	1c1a2d1319	lavu/mem: remove redundant comment from av_dynarray_add() The function is documented in mem.h.	12 years ago
Michael Niedermayer	a057552212	avutil/log: dont count&print repeats for empty strings Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	74b1c32a80	avutil/log: leave prefix printing state on empty input. Fixes printing the prefix after an empty string was printed Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
highgod0401	f31247cf47	lavu/opencl:add opencl set param function Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Nicolas George	29ebb7ba8d	lavu: fix GET_UTF8 macro. Prevent 0xFE and 0xFF from being considered the start of non-standard 7-bytes sequences. No noticeable effect on speed.	12 years ago
highgod0401	6d7ec4fc2e	lavu/opencl:optimize compile kernel operation Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	63090842df	av_samples_alloc_array_and_samples: Fix sizeof type. Fixes CID1005317 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	3e9c0217fd	lavu: add av_clipd_c Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	c25224737c	avutil/intfloat_readwrite: include common.h for isinf() Solution based on rational.c, which uses isinf() too This should fix compilation with msvc Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	cc6f848dba	avutil/intfloat_readwrite: avoid comparission with INFINITY, use isinf() Should fix pgc warning Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	92218aad00	butterflies_float: replace 2 lea by 2 add adds are simpler instructions and should be faster or equally fast on all cpus Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago

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3141 Commits (2c7d3ecfc962fe2d2afa84cd347136060468fe0e)