FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	1c910d2f11	sws: Fix RGB0->alpha containing formats. Fixes Ticket869 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	234405315f	sws: Fix unscaled >8bit planar chroma handling. Fixes Ticket840 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	0421b6dc7a	sws: In case of an invalid scaler algorithm, show the invalid value. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	657878f76e	sws: fix copy case detection with gray8a. Fixes gray_alpha.png Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	5a840f6364	x86/yuv2rgb_mmx: Remove yuv420 check. This check is not correct, the code supports more yuv variants. Fixes Ticket904 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	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
Carl Eugen Hoyos	ef3a19d595	Fix compilation with yasm-0.6.2	13 years ago
Michael Niedermayer	05577aafaa	sws: yuv2rgb asm, add memory clobber. This fixes dithering for rgb555le, it appears gcc had moved the setup of the variables after the asm or something like that. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	f7f3563214	rgb2rgb: rgb12tobgr12() Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Michael Niedermayer	bc11580007	sws: Remove unneeded YUV cliping from yuv2rgb_X_c_template() This should slightly improve speed. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	ba6e36f906	swscale: Force full horizontal chroma internally when the output has a odd size. This fixes a gray line on the right side due to 1 column of pixels being skiped. Fixes Ticket891 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	0644cabd7a	sws: Move yuv2rgb clipping into the tables. This fixes some cases where the clipping was entirely missing. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Thanks (for the comments and review) -to: Reimar, beastd, Ronald	13 years ago
Michael Niedermayer	ac7efd3364	sws: fix unscaled LE<->BE rgb<->bgr Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	5ab6f0fe5a	Revert "swscale: fix integer overflows in RGB pixel writing." This reverts commit `77d88b872d`. The revert fixes actual overflows and a segfault as the variables are signed and can be negative. Conflicts: libswscale/swscale.c Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	296a338261	rgb2rgb: remove unused bgr8torgb8() RGB8 and BGR8 are paletted formats now.	13 years ago
Paul B Mahol	4ad40d6d9f	rgb2rgb: rgb12tobgr12()	13 years ago
Paul B Mahol	277030627d	rgb2rgb: allow conversion for <15 bpp	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
Michael Niedermayer	0f91a57732	libswscale: increase LIBSWSCALE_VERSION_MICRO to 100 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	32a92d3258	sws: Print an error in case of av_malloc() failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	90cad5edf6	swscale: Fix several (real world) integer overflows. Fixes Ticket795 Bug Found by: Oana Stratulat Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	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
Janne Grunau	b4dc68803b	swscale: add endian conversion for RGB555 and RGB444 pixel formats Add a macro to shorten the if condition.	13 years ago
Ronald S. Bultje	be1bafc303	swscale: fix overflows in output of RGB48 pixels. For certain types of filters where the intermediate sum of coefficients can go above the fixed-point equivalent of 1.0 in the middle of a filter, the sum of a 31-bit calculation can overflow in both directions and can thus not be represented in a 32-bit signed or unsigned integer. To work around this, we subtract 0x40000000 from a signed integer base, so that we're halfway signed/unsigned, which makes it fit even if it overflows. After the filter finishes, we add the scaled bias back after a shift. We use the same trick for 16-bit bpc YUV output routines. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Janne Grunau	ed46a3d842	swscale: add rgb565 endianess conversion	13 years ago
Ronald S. Bultje	4391805916	swscale: fix overflows in RGB rounding constants. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Janne Grunau	72cb904453	swscale: add unscaled packed 16 bit per component endianess conversion	13 years ago
Diego Biurrun	3c62a71486	swscale_mmx: drop no longer required parameters from VSCALEX macros	13 years ago

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1474 Commits (dd83028374ea489f34d87bc6fa7547c644309d24)