FFmpeg

Commit Graph

Author	SHA1	Message	Date
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
Diego Biurrun	52de07e1f1	swscale: Mark yuv2planeX_8_mmx as MMX2; it contains MMX2 instructions.	13 years ago
Mans Rullgard	878dda5db1	build: move inclusion of subdir.mak to main subdir loop Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Diego Biurrun	58c42af722	doxygen: misc consistency, spelling and wording fixes	13 years ago
Mans Rullgard	373211d828	Remove extraneous semicolons These semicolons cause invalid empty top-level declarations. Signed-off-by: Mans Rullgard <mans@mansr.com>	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
Mans Rullgard	7c5ce99bd9	swscale: fix signed overflow in yuv2mono_X_c_template As old bits are shifted out of the accumulator, they cause signed overflows when they reach the end. Making the variable unsigned fixes this. Signed-off-by: Mans Rullgard <mans@mansr.com>	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	f7f1835258	swscale: fix failing fate tests. isGray() is left as a FIXME for later.	13 years ago
Ronald S. Bultje	185655c601	swscale: add support for planar RGB input.	13 years ago
Ronald S. Bultje	6b0768e202	Clean up swscale pixfmt macros using av_pix_fmt_descriptors[].	13 years ago
John Stebbins	09d243ddd0	swscale: Fix stack alignment for SSE Although gcc guarantees 16 byte stack alignment, threads under WinXP don't appear to be guaranteed to start stack aligned. So fix the alignment. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	8283f90a52	swscale: handle unaligned buffers in yuv2plane1 The issue had been introduced in `c435653627` Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	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	c435653627	swscale: write yuv2plane1 MMX/SSE2/SSE4/AVX functions.	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	9e66b892e8	swscale: add missing colons to x86 assembly yuv2planeX. This fixes assembling using "nasm".	13 years ago
Ronald S. Bultje	f48b12e0a6	swscale: update altivec yuv2planeX asm to new per-plane API.	13 years ago
Ronald S. Bultje	6cacecdca3	swscale: make yuv2yuvX_10_sse2/avx 8/9/16-bits aware. Also implement MMX/MMX2 versions and SSE4 versions.	13 years ago
Kieran Kunhya	7fbbf95293	yuv2planeX10 SIMD Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	109f62e8f8	swscale: decide whether to use yuv2plane1/X on a per-plane basis.	13 years ago
Ronald S. Bultje	f99654d470	swscale: reintroduce full precision in 16-bit output.	13 years ago
Kieran Kunhya	ff7913aef1	Split up yuv2yuvX functions Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Kieran Kunhya	34e8d147b3	Split out yuv2yuv1 luma and chroma in order to make them generic DSP functions Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Mans Rullgard	41ac093f7e	swscale: fix signed shift overflows in ff_yuv2rgb_c_init_tables() Signed-off-by: Mans Rullgard <mans@mansr.com>	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	145f741e11	AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*	13 years ago
Anton Khirnov	04de1569cd	sws: support yuv444p9/10 output.	13 years ago
Ronald S. Bultje	6aa3cac6bf	swscale: use aligned move for storage into temporary buffer. The intermediate buffer is always aligned.	13 years ago
Mans Rullgard	d853e571ad	ppc: fix some pointer to integer casts Use uintptr_t instead of plain int. Without this change, the comparisons will come out wrong for pointers in certain ranges. Fixes random failures on ppc64. Also fixes some compiler warnings. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Kieran Kunhya	4d4d0e8176	Fix unnecessary shift with 9/10bit vertical scaling Signed-off-by: Diego Biurrun <diego@biurrun.de>	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
Ronald S. Bultje	e0c3e07387	sws: implement MMX/SSE2/SSSE3/SSE4 versions for horizontal scaling. Speed: from 3.9x to 9.6x speed improvement over C, and some small (up to 15%) speed improvements over existing MMX code (particularly for bigger filters).	13 years ago
Anton Khirnov	fb4ca26bdb	lavf,lavc,sws: add {avcodec,avformat,sws}_get_class() functions.	13 years ago
Ronald S. Bultje	3f04ab4fcd	swscale: split hScale() function pointer into h[cy]Scale(). This allows using more specific implementations for chroma/luma, e.g. we can make assumptions on filterSize being constant, thus avoiding that test at runtime.	13 years ago
Luca Barbato	3304a1e69a	swscale: add dithering to yuv2yuvX_altivec_real It just does that part in scalar form, I doubt using a vector store over 2 array would speed it up particularly. The function should be written to not use a scratch buffer.	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
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
Kostya Shishkov	42ba12888b	Do not convert RGB buffer at once when stride does not fit exact samples. When converting RGB format to RGB format with the same bits per sample, unscaled path performs conversion on the whole buffer at once. For non-multiple-of-16 BGR24 to RGB24 conversion it means that padding at the end of line will be converted too. Since it may be of arbitrary length (e.g. 8 bytes), operating on the whole buffer produces obviously wrong results. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 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

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999 Commits (b4dc68803bd7fa73c2e37f55ae73b5fdb293c68d)