FFmpeg

Commit Graph

Author	SHA1	Message	Date
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	13 years ago
Diego Biurrun	a2e40cd3e2	swscale: ppc: Add missing header #includes to pass 'make checkheaders'.	13 years ago
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().	13 years ago
Ronald S. Bultje	783487ae44	swscale: sign-extend integer function argument to qword on x86-64.	13 years ago
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.	13 years ago
Ronald S. Bultje	ef1c785f11	swscale: make yuv2yuv1 use named registers.	13 years ago
Ronald S. Bultje	b7542dd3d7	swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case. Fixes bug 221. CC: libav-stable@libav.org	13 years ago
Diego Biurrun	06b320ad78	swscale: K&R formatting cosmetics for SPARC code	13 years ago
Ronald S. Bultje	2144941069	swscale: split C output functions into separate file. Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Ronald S. Bultje	2dd7a1c030	swscale: Split C input functions into separate file. Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
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>	13 years ago
Diego Biurrun	148bc235b0	swscale: K&R formatting cosmetics for Blackfin code Also prettyprint some comments in Assembly code.	13 years ago
Ronald S. Bultje	de53b9068a	swscale: implement MMX, SSE2 and AVX functions for RGB32 input.	13 years ago
Ronald S. Bultje	378c5ef9ae	swscale: enable dithering in MMX functions. This was accidently disabled. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	212f161caa	swscale: make rgb24 function macros slightly smaller.	13 years ago
Ronald S. Bultje	f5490fbe3b	swscale: remove obsolete comment.	13 years ago
Diego Biurrun	2e3fb9e372	swscale-test: Drop unused argc and argv arguments from main().	13 years ago
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>	13 years ago
Alex Converse	7181c4edee	cosmetics: Remove extra newlines at EOF	13 years ago
Ronald S. Bultje	b5d08c27c3	swscale: convert rgb/bgr24ToY/UV_mmx functions from inline asm to yasm. Also implement sse2/ssse3/avx versions.	13 years ago
Ronald S. Bultje	3b15a6d742	config.asm: change %ifdef directives to %if directives. This allows combining multiple conditionals in a single statement.	13 years ago
Alex Converse	08628b6afb	Revert "sws/pixfmt/pixdesc: add support for yuva444p" This reverts commit `fc115c80b7`. Tests are broken.	13 years ago
Paul B Mahol	fc115c80b7	sws/pixfmt/pixdesc: add support for yuva444p Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Diego Biurrun	33ad8c3cab	cosmetics: Remove some unnecessary block braces.	13 years ago
Diego Biurrun	e44c11e9fa	cosmetics: Move static and inline attributes to more standard places. Fixes several "‘static’ is not at beginning of declaration" warnings.	13 years ago
Ronald S. Bultje	3c172a4106	swscale: change yuv2yuvX code to use cpuflag().	13 years ago
Paul B Mahol	0cc1a86dc3	rgb2rgb: rgb12to15() Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	06b0246da0	swscale-test: fix stack overread. Fixes problems in swscale-test where it gives a 3-member array to a function expecting a 4-member array.	13 years ago
Ronald S. Bultje	e7843db3df	swscale: fix invalid conversions and memory problems. Fixes problems where rgbToRgbWrapper() is called even though it doesn't support this particular conversion (e.g. converting from RGB444 to anything). Thirdly, fixes issues where rgbToRgbWrapper() is called for non-native endiannness conversions (e.g. RGB555BE on a LE system). Fourthly, fixes crashes when converting from e.g. monowhite to monowhite, which calls planarCopyWrapper() and overwrites/reads because n_bytes != n_pixels.	13 years ago
Paul B Mahol	f7f3563214	rgb2rgb: rgb12tobgr12() Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	b14fa5572c	swscale: fix crash in fast_bilinear code when compiled with -mred-zone. Additional comments from Måns Rullgard have been integrated by Reinhard Tartler. Signed-off-by: Reinhard Tartler <siretart@tauware.de>	13 years ago
Oka Motofumi	cd44521625	swscale: specify register type. Fixes a compilation failure on win64. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Paul B Mahol	0b8b3387a9	rgb2rgb: allow conversion for <15 bpp Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Paul B Mahol	5cad970971	swscale: RGB4444 and BGR444 input Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	2170a0e6ad	swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm. Also implement SSE2/AVX variants.	13 years ago
Diego Biurrun	999484c9fb	swscale: K&R formatting cosmetics for code examples	13 years ago
Diego Biurrun	83890c66c4	swscale: K&R reformatting cosmetics for header files	13 years ago
Ronald S. Bultje	2ba65879b5	swscale: remove unused U/V arguments from yuv2rgb_write(). Also document the function somewhat.	13 years ago
Diego Biurrun	3d72a6f19e	swscale: Use standard multiple inclusion guards in ppc/ header files.	13 years ago
Ronald S. Bultje	6b3995ccd1	swscale: remove obsolete comment.	13 years ago
Ronald S. Bultje	6ea64339c5	swscale: split scale.asm. scale.asm keeps horizontal scaling functions, whereas output.asm gets the vertical scaling/output functions.	13 years ago
Ronald S. Bultje	9ea3501d87	swscale: don't show full-chroma-int warning for non-RGB output. Non-RGB output always uses full chroma interpolation.	13 years ago
Ronald S. Bultje	f910dbcdb0	swscale: add MMX files to MMX-OBJS instead of OBJS.	13 years ago
Diego Biurrun	44b0edda3f	Drop some pointless void* return value casts from av_malloc() invocations.	13 years ago
Janne Grunau	6e9bb5aa3e	swscale: prevent invalid writes in packed_16bpc_bswap Writes past the end of the destination buffer were occuring when its stride was smaller than the stride of the source. Fixes Bug #183.	13 years ago
Anton Khirnov	131609dc2a	sws: readd PAL8 to isPacked() Fixes PAL8 to YUV conversion.	13 years ago
Nathan Adil Maxson	7b3894bee9	swscale: fix formatting and indentation of unscaled conversion routines. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	d49352c7cc	swscale: fix overflows in vertical scaling at top/bottom edges. This fixes integer multiplication overflows in RGB48 output (vertical) scaling as detected by IOC. What happens is that for certain types of filters (lanczos, spline, bicubic), the intermediate sum of coefficients in the middle of a filter can be larger than the fixed-point equivalent of 1.0, even if the final sum is 1.0. This is fine and we support that. However, at frame edges, initFilter() will merge the coefficients for the off-screen pixels into the top or bottom pixel, such as to emulate edge extension. This means that suddenly, a single coefficient can be larger than the fixed-point equivalent of 1.0, which the vertical scaling routines do not support. Therefore, remove the merging of coefficients for edges for the vertical scaling filter, and instead add edge detection to the scaler itself so that it copies the pointers (not data) for the edges (i.e. it uses line[0] for line[-1] as well), so that a single coefficient is never larger than the fixed-point equivalent of 1.0.	13 years ago
Ronald S. Bultje	72dafea0fc	swscale: fix overflow in gray16 vertical scaling. This fixes the same overflow as in the RGB48/16-bit YUV scaling; some filters can overflow both negatively and positively (e.g. spline/lanczos), so we bias a signed integer so it's "half signed" and "half unsigned", and can cover overflows in both directions while maintaining full 31-bit depth. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	77d88b872d	swscale: fix integer overflows in RGB pixel writing. We're shifting individual components (8-bit, unsigned) left by 24, so making them unsigned should give the same results without the overflow. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago

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1149 Commits (0eedf5d74dcef868668f73568760615c1b25cc60)