FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	fa74058dd3	swscale/utils: Fix undefined shift in initFilter() Found-by: Clang -fsanitize=shift Reported-by: Thierry Foucu <tfoucu@google.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	007498fc1a	swscale/utils: clear formatConvBuffer on allocation Fixes use of uninitialized memory Fixes: asan_heap-oob_35ca682_1474_cov_3230122439_aletrek_tga_16bit.mov Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	fb8e5044b4	swscale/utils: add asserts to check filterpos Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	1895d414aa	swscale/utils: More carefully merge and clear coefficients outside the input Fixes out of array read Fixes: asan_heap-oob_35ca682_1474_cov_3230122439_aletrek_tga_16bit.mov Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Federico Tomassetti	e51f22122d	swscale: Check memory allocations CC: libav-stable@libav.org Bug-Id: CID 1267888 / CID 1267890 Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	10 years ago
Michael Niedermayer	692b22626e	swscale/utils: Limit filter shifting so as not to read from prior the array Fixes out of array read Fixes: asan_heap-oob_1fb2f9b_3780_cov_3984375136_usf.mkv Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Paul B Mahol	928061670e	libswscale: GBRAP input & output and GBRAP16 input support Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	10 years ago
Kieran Kunhya	18982f084c	swscale: Pass through chroma positions in sws_getCachedContext Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	2f6bb86f85	swscale/utils: support bayer input + scaling, and bayer input + any supported output Fixes Ticket4053 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	fba894615d	swscale: support internal scaler cascades Fixes Ticket3170 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
James Almer	fb7d8d50bc	swscale: remove obsolete FF_API_SWS_FORMAT_NAME cruft Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
Michael Niedermayer	61af6bebb4	swscale: Allow chroma samples to be above and to the left of luma samples Found-by: Kierank Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	bb789016d4	swscale: Undeprecate sws_getContext() sws_getCachedContext is not a full replacement for the function.	10 years ago
Vittorio Giovara	f84a1b597c	swscale: support AV_PIX_FMT_YA16 as input Based on a long debug session with Kostya.	10 years ago
Vittorio Giovara	e96c3b81ca	avutil: rename AV_PIX_FMT_Y400A to AV_PIX_FMT_YA8 The rationale is that you have a packed format in form <greyscale sample> <alpha sample> <greyscale sample> <alpha sample> and shortening greyscale to 'G' might make one thing about Greenscale instead. An alias pixel format and color space name are provided for compatibility.	10 years ago
Michael Niedermayer	b53bdae11f	swscale/utils: fix rgb -> fullrange yuv Fixes part of Ticket3785 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	d84abf35c0	swscale/utils: remove unused define Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	6532a1a828	sws/x86: split mmxext fast bilinear scaler out Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Derek Buitenhuis	a4bd4733c0	swscale: Allow the max filter size to be set at compile time This can help "extreme" resizes, e.g with some 4k stuff. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Michael Niedermayer	ce4d91ba2a	sws: document color range >8bit oddity	11 years ago
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

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341 Commits (e46a7fdc8748c286e391c1e7f2921d98a4486681)