FFmpeg

Commit Graph

Author	SHA1	Message	Date
Ronald S. Bultje	1254022ea7	swscale: fix filtersize clipping. if srcW<=2, clip(x, 1, srcW-2) still allows srcW to be < 1.	13 years ago
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
Alex Converse	7181c4edee	cosmetics: Remove extra newlines at EOF	13 years ago
Paul B Mahol	f9ca1ac796	sws/pixfmt/pixdesc: add support for yuva444p Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> Conflicts: libavutil/avutil.h libavutil/pixfmt.h	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
Michael Niedermayer	1c910d2f11	sws: Fix RGB0->alpha containing formats. Fixes Ticket869 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
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
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
Paul B Mahol	5cad970971	swscale: RGB4444 and BGR444 input Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	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
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
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
Reinhard Tartler	5089ce1b5a	swscale: #include "libavutil/mathematics.h" this file uses the M_PI macro since `4e74187db2`, so include the correct header directly. Signed-off-by: Reinhard Tartler <siretart@tauware.de>	13 years ago
Michael Niedermayer	b89ce2d6af	swscale: alpha less rgb32 support. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Martin Storsjö	f32dfad9dc	swscale: Readd #define _SVID_SOURCE This was removed erroneously in `046f081b46`. This define still is necessary for getting MAP_ANONYMOUS defined on linux/glibc, despite the define reshuffling done in that commit. Without MAP_ANONYMOUS defined, the mprotect calls for setting the generated mmx2 scaler code pages executable are left out, causing crashes if that codepath is chosen. This patch fixes scaling from 192x144 to 320x240 with -sws_flags fast_bilinear, which crashes on linux at the moment. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Ronald S. Bultje	185655c601	swscale: add support for planar RGB input.	13 years ago
Michael Niedermayer	58eca5178a	sws: Fix: libswscale/utils.c:941:13: warning: passing argument 5 of ‘initMMX2HScaler’ from incompatible pointer type libswscale/utils.c:524:12: note: expected ‘int32_t ’ but argument is of type ‘int16_t ’ libswscale/utils.c:942:13: warning: passing argument 5 of ‘initMMX2HScaler’ from incompatible pointer type libswscale/utils.c:524:12: note: expected ‘int32_t ’ but argument is of type ‘int16_t ’ Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	5bccb2d096	sws: handle jpeg pixel formats in sws_init_context() Fixes Ticket576 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Sean McGovern	124e56454d	swscale: add padding to conversion buffer. Altivec does unaligned reads from this buffer in hscale_altivec_real(), and can thus read up to 16 bytes beyond the end of the buffer. Therefore, add an extra 16 bytes of padding at the end of the conversion buffer. This fixes fate-lavfi-pixfmts_scale on AltiVec-enabled builds under valgrind. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	1deb08fcb6	swscale: align vertical filtersize by 2 on x86. The vertical scaler handles 2 rows at a time and thus requires alignment by 2, or else it'll read invalid memory and result in corrupt output.	13 years ago
Ronald S. Bultje	dc49bf1270	sws/pixfmt/pixdesc: add support for yuv420p9le/be.	13 years ago
Ronald S. Bultje	8305041e13	swscale: prevent overflow in coefficient calculation.	13 years ago
Ronald Bultje	d1d421cbc0	swscale: prevent overflow during initialization Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Anton Khirnov	04de1569cd	sws: support yuv444p9/10 output.	13 years ago
Michael Niedermayer	cca81e7eb0	sws: gbr24p input support Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Reimar Döffinger	ae23b26995	Enable conversions to YUV444P9/YUV444P10, they seem to work fine. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Jean First	9569a3c9f4	Add new pix_fmt RGBA64	13 years ago
Ronald S. Bultje	ea540401d6	swscale: fix byte overreads in SSE-optimized hscale(). SSE-optimized hScale() scales up to 4 pixels at once, so we need to allocate up to 3 padding pixels to prevent overreads. This fixes valgrind errors in various swscale-tests on fate.	13 years ago
Michael Niedermayer	66bb5cd592	sws: remove hScale16N() and use ronalds reformated version of it. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Ronald S. Bultje	28c1115a91	swscale: use 15-bit intermediates for 9/10-bit scaling.	13 years ago
Stefano Sabatini	6a92551234	lsws: remove optimization debug logs in sws_init_context() The logged information is possibly false, and it tends to be outdated after each change since the logging code needs to be manually updated. Simplify and prevent confusing wrong debug messages. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	13 years ago
Stefano Sabatini	347167ecf5	lsws: use array for storing the supported in/out information Also remove the unnecessary isSupportedIn/Out macros. Make the code more compact/readable, and simplify the access to lsws-specific pixel format information. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	13 years ago
Stefano Sabatini	4ce0a94656	lsws: remove deprecated and unused stuff after the 0->1 major bump	13 years ago
Ronald S. Bultje	62ee0e6a97	Revert "swscale: use 15-bit intermediates for 9/10-bit scaling." This reverts commit `ac0fb59348`. It causes valgrind errors which I'll want to investigate before resubmitting this.	13 years ago
Ronald S. Bultje	ac0fb59348	swscale: use 15-bit intermediates for 9/10-bit scaling.	13 years ago
Stefano Sabatini	25a53c54d1	lsws: apply logging factorization in sws_scale_init()	13 years ago
Stefano Sabatini	07f49ca1d1	lsws: remove redundant macros isSupportedIn/Out Directly call sws_isSupportedInput/Output.	14 years ago
Stefano Sabatini	64bb656326	lsws: factorize some logging code in sws_init_context()	14 years ago
Stefano Sabatini	e8794f1d5e	lsws: fix weird indent	14 years ago
Stefano Sabatini	c899bedbca	lsws: use array for storing the supported in/out information	14 years ago
Joseph Artsimovich	eedb1f2034	swscale: mark YUV422P10(LE,BE) as supported for output Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Ronald S. Bultje	baba2eedac	swscale: extend mmx padding. Fixes a crash when forcing libc to strictly adhere to malloc sizes.	14 years ago
Diego Biurrun	96c1e6d40d	doxygen: Make sure parameter names match between .c and .h files.	14 years ago
Michael Niedermayer	e1d9cee13d	sws: dont mess with XInc when the code needing it isnt used Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Michael Niedermayer	29fb1b5a06	sws: Fix chroma init for 32bit buffers. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Ronald S. Bultje	ac9ac45aca	swscale: fix 16-bit scaling when output is 8-bits. We would use the second half of the U plane buffer, rather than the V plane buffer, to output the V plane pixels.	14 years ago

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290 Commits (2f31b73a11d676e3f7f66139ff5c745317e8f1a3)