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2587 Commits

Author SHA1 Message Date
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>
 2013-05-20 04:27:34 +02:00
Michael Niedermayer
97200d89b9 Merge commit '40020e171a3549a2c0b65ce6f2649aec868872f2' 
* commit '40020e171a3549a2c0b65ce6f2649aec868872f2':
  doxy: add a section about versioning.

Conflicts:
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-18 11:17:52 +02:00
Michael Niedermayer
0718f0cc24 Merge commit 'bc8c1cdc7bfe7b1fe56df812aabdac3de2555cec' 
* commit 'bc8c1cdc7bfe7b1fe56df812aabdac3de2555cec':
  lavfi doxy: add a page for lavfi.
  jpegls: check the scan offset

Conflicts:
	libavcodec/jpeglsdec.c
	libavfilter/avfilter.h
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-18 11:04:11 +02:00
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>
 2013-05-17 21:16:02 +02:00
Anton Khirnov
40020e171a doxy: add a section about versioning. 2013-05-17 20:26:18 +02:00
Anton Khirnov
bc8c1cdc7b lavfi doxy: add a page for lavfi. 2013-05-17 20:26:11 +02:00
Paul B Mahol
3a751eab78 lavu/opt: add AV_OPT_TYPE_COLOR 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-05-17 11:32:53 +00:00
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>
 2013-05-16 17:58:56 +02:00
Michael Niedermayer
4390fa6273 Merge commit 'd46c588f3cb1963a00e990ceaf4ba9ffa05a716d' 
* commit 'd46c588f3cb1963a00e990ceaf4ba9ffa05a716d':
  Remove commented-out #includes
  h263dec: Remove broken and disabled debug cruft
  vc1: Reindent INIT_LUT(), align backslashes

Conflicts:
	libavcodec/vc1.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-16 09:11:04 +02:00
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>
 2013-05-15 23:53:40 +02:00
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>
 2013-05-15 23:53:40 +02:00
Diego Biurrun
d46c588f3c Remove commented-out #includes 2013-05-15 23:01:21 +02:00
Michael Niedermayer
e003413fe9 murmur3: fix memleak 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-15 12:10:09 +02:00
Michael Niedermayer
c7c71f95f8 replace remaining PIX_FMT_* flags with AV_PIX_FMT_FLAG_* 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-15 11:23:14 +02:00
Michael Niedermayer
ff4680922f Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  pixdesc: rename PIX_FMT_* flags to AV_PIX_FMT_FLAG_*

Conflicts:
	doc/APIchanges
	libavcodec/avpicture.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/imgconvert.c
	libavcodec/tiffenc.c
	libavfilter/vf_pixdesctest.c
	libavfilter/vf_scale.c
	libavutil/imgutils.c
	libavutil/pixdesc.c
	libavutil/version.h
	libswscale/swscale_internal.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-15 11:10:09 +02:00
Michael Niedermayer
aa6454e6ca Merge commit '096696ef0dd391d9430376d1444c1a3cde9171fd' 
* commit '096696ef0dd391d9430376d1444c1a3cde9171fd':
  avfiltergraph: simplify inserting conversion filters.
  Clarify output of av_get_bits_per_pixel

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-15 10:21:16 +02:00
Anton Khirnov
e6c4ac7b5f pixdesc: rename PIX_FMT_* flags to AV_PIX_FMT_FLAG_* 2013-05-15 07:46:51 +02:00
Kieran Kunhya
ede75ebc9b Clarify output of av_get_bits_per_pixel 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-05-15 07:45:09 +02:00
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>
 2013-05-14 19:43:51 +02:00
Reimar Döffinger
7d1d596817 Add a generic hash API. 
Also use this API in framemd5.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2013-05-13 21:42:37 +02:00
Reimar Döffinger
86215c326e Add 128 bit murmur3 hash function. 
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2013-05-13 21:42:37 +02:00
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.
 2013-05-13 17:53:16 +02:00
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
 2013-05-13 13:52:31 +02:00
Stefano Sabatini
84be806982 lavu: define FF_MEMORY_POISON and use it 
Allow single-place definition of constant used to fill poisoned memory.
 2013-05-13 13:52:26 +02:00
Stefano Sabatini
eeb9a4928d lavu/mem.h: fix typo 2013-05-10 10:32:59 +02:00
Clément Bœsch
570d63eef3 lavu: add FF_CEIL_RSHIFT and use it in various places. 2013-05-09 16:59:42 +02:00
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>
 2013-05-09 16:21:17 +02:00
Michael Niedermayer
8d9537228f Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  msvc: Move linker pragma from config.h to libavutil/internal.h

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-08 14:32:43 +02:00
Stefano Sabatini
ee9794ed20 lavu/mem: fix potential int overflow and crash in av_dynarray_add() 
Also extend documentation accordingly.
 2013-05-08 01:39:12 +02:00
Stefano Sabatini
c773adee3f lavu/mem: extend documentation for av_dynarray_add() 
In particular, mention the fact that the amortized element addition cost
is constant.
 2013-05-08 01:39:12 +02:00
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>
 2013-05-08 01:28:25 +03:00
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>
 2013-05-07 13:13:09 +02:00
Michael Niedermayer
60fd88059a Merge commit '74652af821d7e526a6541876a637fbf81261fa8e' 
* commit '74652af821d7e526a6541876a637fbf81261fa8e':
  pixdesc: add function to return pixel format with swapped endiannes

Conflicts:
	libavutil/pixdesc.c
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-07 10:49:40 +02:00
Janne Grunau
74652af821 pixdesc: add function to return pixel format with swapped endiannes 2013-05-06 18:51:47 +02:00
highgod0401
41aa199998 lavu/opencl_internal: use av_opencl_errstr 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-06 12:08:04 +02:00
highgod0401
548101b553 lavu/opencl: add opencl public error API 
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-05 13:44:29 +02:00
Michael Niedermayer
3c200aa693 Merge commit '1fda184a85178cfd7b98d9e308d18e1ded76a511' 
* commit '1fda184a85178cfd7b98d9e308d18e1ded76a511':
  avutil: Add av_cold attributes to init functions missing them

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-05 12:53:50 +02:00
Diego Biurrun
1fda184a85 avutil: Add av_cold attributes to init functions missing them 2013-05-04 22:48:05 +02:00
Paul B Mahol
e6d4e68755 lavu: add planar 16 bit and 8 bit rgb with alpha 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-05-03 16:58:22 +00:00
Michael Niedermayer
e91339cde2 Merge commit '566b7a20fd0cab44d344329538d314454a0bcc2f' 
* commit '566b7a20fd0cab44d344329538d314454a0bcc2f':
  x86: float dsp: butterflies_float SSE

Conflicts:
	libavutil/x86/float_dsp.asm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-03 11:57:59 +02:00
Christophe Gisquet
566b7a20fd x86: float dsp: butterflies_float SSE 
97c -> 49c
Some codecs could benefit from more unrolling, but AAC doesn't.
 2013-05-03 08:08:02 +02:00
highgod0401
6354a6ce52 lavu/opencl: fix bug of opencl options 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-02 14:42:02 +02:00
Michael Niedermayer
89b5039ff2 avutil/mem: add av_memdup() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-02 13:44:05 +02:00
Michael Niedermayer
67731ef40f Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  avutil: doxy: Small clarification for av_buffer_create()
  avcodec: doxy: Clarify how to use buf[] when implementing get_buffer2()
  avcodec: doxy: Clarify what get_buffer2 must fill in buf[]

Conflicts:
	libavutil/buffer.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-01 18:33:30 +02:00
Michael Niedermayer
148f69eb4e Merge commit 'f5eecee865a731d2412fde2f73c29f8f8115c499' 
* commit 'f5eecee865a731d2412fde2f73c29f8f8115c499':
  ppc: util_altivec: Surround AltiVec-related code by appropriate ifdefs

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-01 17:57:55 +02:00
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>
 2013-04-30 20:06:24 +02:00
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>
 2013-04-30 13:33:43 -04:00
Diego Biurrun
f5eecee865 ppc: util_altivec: Surround AltiVec-related code by appropriate ifdefs 
This prevents non-AltiVec-enabled compilers from choking.
 2013-04-30 12:19:44 +02:00
highgod0401
df9117921a lavu/opencl: add check version and platform 
Reviewed-by: Hanspeter Niederstrasser <niederstrasser@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-28 23:42:58 +02:00
Stefano Sabatini
1c1a2d1319 lavu/mem: remove redundant comment from av_dynarray_add() 
The function is documented in mem.h.
 2013-04-27 20:34:10 +02:00