FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	c3417ed7fd	swscale/utils: Add check that ensures that the hardcoded struct offsets are valid Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	656fe7ecce	swscale/utils: use FF_ALLOC(Z)_ARRAY_OR_GOTO() and av_malloc(z)_array() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Luca Barbato	3a177a9cca	swscale: Fix an undefined behaviour Prevent a division by zero down the codepath. Sample-Id: 00001721-google Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	11 years ago
Michael Niedermayer	4959a4fcf7	swscale/utils: fix changing src/dst range after initializing the context Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	fa98885be4	swscale/utils: move handling of unscaled case to the end of init function This way all context fields get initialized and can be used without needing to reinit the context Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	1752b1459d	swscale/utils: scale filter_size in warning so that it can be used as max for the compile time define Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	7b2b06eb43	swscale/utils: dont print message about filter size when the cause is a malloc failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Vittorio Giovara	92b099daf4	swscale: support converting YVYU422 pixel format	11 years ago
Michael Niedermayer	37f69cd93e	swscale: add full bgra64 support Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Janne Grunau	0ca0924c10	swscale: add endianness conversion for AV_PIX_FMT_BGRA64\|RGBA64	11 years ago
Carl Eugen Hoyos	e6fe804bdd	Do not set swscale sizeFactor to -1. Fixes ticket #3495.	11 years ago
Øyvind Kolås	3e6016622e	swscale: add two spatially stable dithering methods Both of these dithering methods are from http://pippin.gimp.org/a_dither/ for GIF they can be considered better than bayer (provides more gray-levels), and spatial stability - often more than twice as good compression and less visual flicker than error diffusion methods (the methods also avoids error-shadow artifacts of diffusion dithers). These methods are similar to blue/green noise type dither masks; but are simple enough to generate their mask on the fly. They are still research work in progress; though more expensive to generate masks (which can be used in a LUT) like 'void and cluster' and similar methods will yield superior results	11 years ago
Carl Eugen Hoyos	37c07d4529	swscale/utils: Fix color range of gray16 Improves rgb -> gray16 conversion Fixes Ticket3422 The pam and png output files look visually similar, in both cases the dynamics increase to 0x0 -> 0xfffb. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Jean First	1481d24c3a	RGBA64 pixel formats Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	11 years ago
Peter Ross	02b63246cf	libswscale: bayer to rgb24 & yv12 colorspace converters Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	51fed95dde	swscale/utils: fix wrong deprecated message with rgb0 Fixes Ticket3242 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	037fc3b054	swscale/utils: check chroma width for fast bilinear scaler Fixes artifacts where fast bilinear was used for downscaling chroma Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	554e913fd7	swscale/utils: remove useless () Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	dc54bd4e8d	swscale/utils: factor (d + 1 < 4) out Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	4d18060e56	swscale/utils: fill xyz tables only when they will be used makes the first call to sws_getContext() 1ms faster Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Stefano Sabatini	2a6c95d85f	lsws/utils: introduce scale_algorithms array Allow some dumb factorizations, slightly decrease spaghetti factor.	11 years ago
Stefano Sabatini	246e323de8	lsws/utils: fix typo	11 years ago
Stefano Sabatini	ff9d11f95d	lsws: use av_pix_fmt_get_chroma_sub_sample() Remove duplicated getSubSampleFactors() function. Simplify.	11 years ago
Michael Niedermayer	eb4205cc89	swscale/utils: check mprotect() return code Found-by: wm4 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	2db6547237	swscale/utils/sws_setColorspaceDetails(): fix indention Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	a830915b78	swscale: Use full resolution chroma for yuv2rgb when the input has full chroma See Ticket3028 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Vittorio Giovara	6b3ff6f91a	swscale: provide a default scaler if none is set Lanczos for general case, sinc for upscaling, Gaussian for downscaling. According to current literature these scalers should be the best quality-wise algorithms for each case. Inspired from a patch by wm4 <nfxjfg@googlemail.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	11 years ago
Michael Niedermayer	2e2a2d8801	swscale/utils: dont divide by zero with zero vectors Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	2d28950da9	swscale/utils: remove redundant NULL checks before sws_freeVec() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	a446657d8c	swscale/utils: simplify cpu caps printing code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	9d052adbeb	swscale/utils: Simplify scaler name printing code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	aec91de549	swscale/utils: Allow sws_setColorspaceDetails() to use the tables from sws_getColorspaceDetails() Previously this would have lead to a memcpy(a,a) which violates the requirement of non overlapping src and dst. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	c914c99d4b	swscale/utils: use memcpy instead of loop in sws_cloneVec() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	79aec43ce8	x86: Add and use more convenience macros to check CPU extension availability	11 years ago
Diego Biurrun	1909f6b1b6	swscale: cosmetics: Drop silly camelCase from swScale function pointer name	11 years ago
Diego Biurrun	c2503d9c8a	swscale: ppc: Hide arch-specific initialization details Also give consistent names to init functions.	11 years ago
Diego Biurrun	f61bece684	ppc: Add and use convenience macro to check for AltiVec availability	11 years ago
Michael Niedermayer	23b3141261	swscale: improve dither checks Bssed on patch by Øyvind Kolås <pippin@gimp.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	8c50ea2251	swscale: set dither to a specific value for rgb/bgr8 output Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	1e0e193240	sws: add dither enum This allows specifying more dither algorithms without using up flags and without ambiguities. Also initialize the new field based on the flags and use it. Note, improving the logic of the checks is left to subsequent commits, this here only switches from flags to enum. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	aa2ba8c99e	swscale: Move extern declarations for tables to swscale_internal.h Also add missing ff_ prefixes where necessary.	11 years ago
Michael Niedermayer	8d745281a4	swscale/utils: Fix potential overflow of srcPos*C before converting to 64bit Fixes CID1061054 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	bc721ac9f7	swscale/utils: Fix potential overflow of dstPos*xInc before converting to 64bit Fixes CID1061053 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	8efe96ee6f	swscale/fill_rgb2yuv_table: fix default detection Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	a7e45cfa11	swscale/sws_getColorspaceDetails: dont fail for non yuv Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	436616fd42	swscale: exchange src & dst chroma pos Found-by: wm4 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
clook	b9b1a2c3e4	libswscale: Adding RGB => XYZ support	11 years ago
Michael Niedermayer	b405f4e916	swscale: Add support to specify chroma position Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	37f4aa133d	swscale: move default colorspace setup to sws_init_filter() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c75dde6074	swscale: call handle_format() from the functions that need it This should fix some hypothetical issues with alloc/init_context() usage Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago

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316 Commits (ab6228316a595ecc1ee462a34a4f19e1ffeb9062)