videolan
/
ffmpeg
mirror of https://git.videolan.org/git/ffmpeg.git
1
Fork 0
Code Releases Activity
32,499 Commits 36 Branches 392 Tags 196 MiB
Commit Graph

1072 Commits

Author SHA1 Message Date
Ronald S. Bultje 1d8c4af396 swscale: take first/lastline over/underflows into account for MMX. 
Fixes crashes for extremely large resizes (several 100-fold).

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 10:30:08 -08:00
Ronald S. Bultje 491865b57d swscale: fix underflows in firstline calculations for extreme resizes. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 10:30:07 -08:00
Ronald S. Bultje 19a65b5be4 swscale: fix overflows in filterPos[] calculation for large sizes. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 10:30:07 -08:00
Ronald S. Bultje 1254022ea7 swscale: fix filtersize clipping. 
if srcW<=2, clip(x, 1, srcW-2) still allows srcW to be < 1.
 2012-02-22 16:54:20 -08:00
Diego Biurrun 89d94b2182 swscale: K&R formatting cosmetics (part I) 2012-02-21 22:53:40 +01:00
Diego Biurrun 72b95764d0 swscale: variable declaration and placement cosmetics 2012-02-21 22:53:37 +01:00
Diego Biurrun 04217de4d6 swscale: K&R formatting cosmetics for PowerPC code (part I/II) 2012-02-21 20:17:57 +01:00
Ronald S. Bultje b18f8cbf3d Revert two swscale commits. 
Revert "swscale: update context offsets after removal of AlpMmxFilter."
(commit a95e3fa90b)
and
Revert "swscale: Remove some write-only variables related to alpha handling."
(commit 9d03cb9fc5).

They broke alpha handling - it's the evil inline asm that still uses that
variable, so it's not truely write-only.
 2012-02-19 13:31:12 -08:00
Ronald S. Bultje 1bab6f852c swscale: make access to filter data conditional on filter type. 
Prevents crashes on 1-tap filter (unscaled). Also rename "bguf" argument
to "vbuf", seems that was a typo.
 2012-02-17 10:31:15 -08:00
Ronald S. Bultje a95e3fa90b swscale: update context offsets after removal of AlpMmxFilter. 2012-02-17 10:31:15 -08:00
Ronald S. Bultje 25c42234a9 swscale: make monowhite/black RGB-independent. 
Disadvantage is that it no longer allows modifying brightness through
adjustment of the RGB lookup table. Advantage is that now monowhite/black
no longer need to be identified as a RGB format.
 2012-02-16 21:43:20 -08:00
Diego Biurrun 9d03cb9fc5 swscale: Remove some write-only variables related to alpha handling. 2012-02-14 10:12:43 +01:00
Ronald S. Bultje 771bab7f57 swscale: fix crashes in yuv2yuvX on x86-32. 
They were introduced in an earlier commit that introduced use of named
arguments. One cause was a typo, a second cause appears to be a bug in
x264asm that I work around by not using named arguments.
 2012-02-13 13:41:13 -08:00
Diego Biurrun 7331b6e718 Drop some completely unnecessary av_unused attributes. 2012-02-13 19:20:53 +01:00
Diego Biurrun 92fed11352 swscale: Remove unused variable alpMmxFilter. 2012-02-13 19:20:53 +01:00
Ronald S. Bultje 3cac475655 swscale: move YUV2PACKED16WRAPPER() macro down to where it is used. 2012-02-13 07:14:05 -08:00
Ronald S. Bultje c0b87359b2 swscale: handle gray16 as a "planar" YUV format (Y-only, of course). 
This allows removing any gray16-specific code, which is essentially
identical to the per-plane code in yuv2plane*().
 2012-02-13 07:14:05 -08:00
Ronald S. Bultje 9d9c846491 swscale: use yuv2packed1() functions for unscaled chroma also. 2012-02-13 07:14:04 -08:00
Ronald S. Bultje d63b7d8c37 swscale: fix incorrect chroma bias in yuv2rgb48_1_c(). 2012-02-13 07:14:04 -08:00
Ronald S. Bultje 1ca7dc60d2 swscale: fix invalid memory accesses in yuvpacked1() functions. 2012-02-13 07:14:04 -08:00
Ronald S. Bultje 3e23badd83 swscale: convert yuv2yuvX() to using named arguments. 2012-02-12 08:27:51 -08:00
Ronald S. Bultje 8c433d8a03 swscale: rename "dstw" to "w" to prevent name collisions. 
"dstw" can collide with the word-version of the "dst" argument, causing
all kind of weird stuff down the pipe.
 2012-02-12 08:27:50 -08:00
Ronald S. Bultje ef66a0ed2e swscale: use named registers in yuv2yuv1_plane() place. 
Most of the function had been converted before, but I forgot this
particular location.
 2012-02-12 08:27:50 -08:00
Ronald S. Bultje dae2ce361a swscale: enforce a minimum filtersize. 
At very small dimensions, this calculation could lead to zero-sized
filters, which leads to uninitialized output, zero-sized allocations,
loop overflows in SIMD that uses do{..}while(i++<filtersize); instead
of for(i=0;i<filtersize;i++){..} and several other similar failures.
Therefore, require a minimum filtersize of 1.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-11 10:06:50 -08:00
Diego Biurrun a2e40cd3e2 swscale: ppc: Add missing header #includes to pass 'make checkheaders'. 2012-02-09 12:26:46 +01:00
Anton Khirnov 38d5533228 pixdesc: mark pseudopaletted formats with a special flag. 
This makes it possible to dintinguish them from PAL8.

Fixes an invalid write in avpicture_layout().
 2012-02-08 21:01:31 +01:00
Ronald S. Bultje 783487ae44 swscale: sign-extend integer function argument to qword on x86-64. 2012-02-08 10:31:14 -08:00
Diego Biurrun 0144fe6995 Remove Sun medialib glue code. 
It is obscure, most likely unused and not bit-exact compared to
libavcodec due to a different IDCT transform algorithm.
 2012-02-08 08:52:30 +01:00
Ronald S. Bultje ef1c785f11 swscale: make yuv2yuv1 use named registers. 2012-02-07 11:38:13 -08:00
Ronald S. Bultje b7542dd3d7 swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case. 
Fixes bug 221.

CC: libav-stable@libav.org
 2012-02-07 11:33:20 -08:00
Diego Biurrun 06b320ad78 swscale: K&R formatting cosmetics for SPARC code 2012-02-07 19:49:49 +01:00
Ronald S. Bultje 2144941069 swscale: split C output functions into separate file. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-02-07 12:03:51 +01:00
Ronald S. Bultje 2dd7a1c030 swscale: Split C input functions into separate file. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-02-07 12:03:50 +01:00
Ronald S. Bultje 7e4d9d5d45 win64: add a XMM clobber test configure option. 
This will be useful to test more aggressively for failures to mark XMM
registers as clobbered in Win64 builds, and prevent regressions thereof.

Based on a patch by Ramiro Polla <ramiro.polla@gmail.com>
 2012-02-02 12:00:48 -08:00
Diego Biurrun 148bc235b0 swscale: K&R formatting cosmetics for Blackfin code 
Also prettyprint some comments in Assembly code.
 2012-02-02 18:50:12 +01:00
Ronald S. Bultje de53b9068a swscale: implement MMX, SSE2 and AVX functions for RGB32 input. 2012-02-01 21:55:32 -08:00
Ronald S. Bultje 378c5ef9ae swscale: enable dithering in MMX functions. 
This was accidently disabled.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-02-01 09:33:29 -08:00
Ronald S. Bultje 212f161caa swscale: make rgb24 function macros slightly smaller. 2012-02-01 09:33:13 -08:00
Ronald S. Bultje f5490fbe3b swscale: remove obsolete comment. 2012-02-01 07:17:01 -08:00
Diego Biurrun 2e3fb9e372 swscale-test: Drop unused argc and argv arguments from main(). 2012-02-01 14:24:25 +01:00
Paul B Mahol 08d8029ea8 swscale: more generic check for planar destination formats with alpha 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-01-30 07:37:13 -08:00
Alex Converse 7181c4edee cosmetics: Remove extra newlines at EOF 2012-01-27 17:19:09 -08:00
Ronald S. Bultje b5d08c27c3 swscale: convert rgb/bgr24ToY/UV_mmx functions from inline asm to yasm. 
Also implement sse2/ssse3/avx versions.
 2012-01-27 11:00:30 +08:00
Ronald S. Bultje 3b15a6d742 config.asm: change %ifdef directives to %if directives. 
This allows combining multiple conditionals in a single statement.
 2012-01-27 10:19:57 +08:00
Alex Converse 08628b6afb Revert "sws/pixfmt/pixdesc: add support for yuva444p" 
This reverts commit fc115c80b7.

Tests are broken.
 2012-01-26 18:06:57 -08:00
Paul B Mahol fc115c80b7 sws/pixfmt/pixdesc: add support for yuva444p 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-01-27 09:24:08 +08:00
Diego Biurrun 33ad8c3cab cosmetics: Remove some unnecessary block braces. 2012-01-25 13:14:49 +01:00
Diego Biurrun e44c11e9fa cosmetics: Move static and inline attributes to more standard places. 
Fixes several "‘static’ is not at beginning of declaration" warnings.
 2012-01-14 17:32:36 +01:00
Ronald S. Bultje 3c172a4106 swscale: change yuv2yuvX code to use cpuflag(). 2012-01-13 16:57:01 -08:00
Paul B Mahol 0cc1a86dc3 rgb2rgb: rgb12to15() 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-01-12 16:43:17 -08:00