FFmpeg

Commit Graph

Author	SHA1	Message	Date
Ronald S. Bultje	2254b559cb	swscale: make filterPos 32bit. Fixes overflows for large image sizes. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Ronald S. Bultje	b18f8cbf3d	Revert two swscale commits. Revert "swscale: update context offsets after removal of AlpMmxFilter." (commit `a95e3fa90b`) and Revert "swscale: Remove some write-only variables related to alpha handling." (commit `9d03cb9fc5`). They broke alpha handling - it's the evil inline asm that still uses that variable, so it's not truely write-only.	13 years ago
Ronald S. Bultje	1bab6f852c	swscale: make access to filter data conditional on filter type. Prevents crashes on 1-tap filter (unscaled). Also rename "bguf" argument to "vbuf", seems that was a typo.	13 years ago
Ronald S. Bultje	a95e3fa90b	swscale: update context offsets after removal of AlpMmxFilter.	13 years ago
Ronald S. Bultje	b7542dd3d7	swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case. Fixes bug 221. CC: libav-stable@libav.org	13 years ago
Ronald S. Bultje	b5d08c27c3	swscale: convert rgb/bgr24ToY/UV_mmx functions from inline asm to yasm. Also implement sse2/ssse3/avx versions.	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
Ronald S. Bultje	2170a0e6ad	swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm. Also implement SSE2/AVX variants.	13 years ago
Ronald S. Bultje	c435653627	swscale: write yuv2plane1 MMX/SSE2/SSE4/AVX functions.	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	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
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
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.	14 years ago
Ronald S. Bultje	28c1115a91	swscale: use 15-bit intermediates for 9/10-bit scaling.	14 years ago
Ronald S. Bultje	5c391a161a	swscale: rename uv_off/uv_off2 to uv_off_px/byte.	14 years ago
Ronald S. Bultje	4e3e333a79	swscale: error dithering for 16/9/10-bit to 8-bit. Based on a somewhat similar idea in FFmpeg's swscale copy.	14 years ago
Ronald S. Bultje	42d622fab3	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
Ronald S. Bultje	8a8d0ce208	swscale: for >8bit scaling, read in native bit-depth. For 9/10bit, it means we don't have to upscale to 16bit before actual scaling or pixel format conversion, and thus a performance gain.	14 years ago
Ronald S. Bultje	ef1ee362b3	swscale: implement >8bit scaling support. This means that precision is retained when scaling between sample formats with >8 bits per component (48bit RGB, 16bit grayscale, 9/10/16bit YUV).	14 years ago
Ronald S. Bultje	13a099799e	swscale: change prototypes of scaled YUV output functions. Remove unused variables "flags" and "dstFormat" in yuv2packed1, merge source rows per plane for yuv2packed[12], and make every source argument int16_t (some where invalidly set to uint16_t). This prevents stack pollution and is part of the Great Evil Plan to simplify swscale.	14 years ago
Ronald S. Bultje	0d994b2f45	swscale: don't use planar output functions to write to NV12/21. This prevents a crash when converting to NV12/21 without the bitexact flags enabled.	14 years ago
Ronald S. Bultje	97535ffb97	swscale: remove unused xInc/srcW arguments from hScale().	14 years ago
Ronald S. Bultje	a27db4c349	swscale: fix function declaration keywords in x86/swscale_template.c. Remove inline keyword for functions that are only called through their function pointers (and thus cannot be inlined); add av_cold keyword to init function, and use av_always_inline instead of inline for functions that must be inlined for performance reasons.	14 years ago
Ronald S. Bultje	9bcbb250e2	swscale: fix types of assembly arguments. This prevents the following compiler warnings: "warning: initialization from incompatible pointer type". Since the variables are only ever used in inline assembly, their type is actually irrelevant (so the part where it was wrong did not invoke any buggy behaviour).	14 years ago
Ronald S. Bultje	496d95c34c	swscale: move two macros that are only used once into caller. This way, they look like regular code, which is easier to understand.	14 years ago
Ronald S. Bultje	0fb5193156	swscale: reindent x86 init code.	14 years ago
Ronald S. Bultje	ca364a5b43	swscale: extract SWS_FULL_CHR_H_INT conditional into init code.	14 years ago
Ronald S. Bultje	bda9b20fa4	swscale: un-special-case yuv2yuvX16_c(). Make yuv2yuvX16_c a function pointer for yuv2yuvX(), so that the function pointer becomes bitdepth-independent.	14 years ago
Ronald S. Bultje	983260b0a4	swscale: split out x86/swscale_template.c from swscale.c.	14 years ago
Anton Khirnov	b8e893399f	sws: replace all long with int. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Ronald S. Bultje	009f829dde	swscale: fix crash in bilinear scaling.	14 years ago
Diego Biurrun	5a5a0f1613	swscale: Remove unused variables in x86 code. libswscale/x86/swscale_template.c:2072: warning: unused variable ‘canMMX2BeUsed’ libswscale/x86/swscale_template.c:2145: warning: unused variable ‘canMMX2BeUsed’ libswscale/x86/swscale_template.c:2209: warning: unused variable ‘chrVPixBuf’ libswscale/x86/swscale_template.c:2237: warning: unused variable ‘chrVSrcPtr’	14 years ago
Ronald S. Bultje	9f5d45025e	swscale: fix non-bitexact yuv2yuv[X2]() MMX/MMX2 functions.	14 years ago
Ronald S. Bultje	e758573a88	swscale: fix compile on x86-32.	14 years ago
Ronald S. Bultje	b4a224c5e4	swscale: split chroma buffers into separate U/V planes. Preparatory step to implement support for sizes > VOFW.	14 years ago
Ronald S. Bultje	836b82e3c9	swscale: reindent h[cy]scale_fast() and updateDitherTables().	14 years ago
Ronald S. Bultje	e2bad983b5	swscale: reformat x86/swscale_template.c. Interleave macros and code so that it's easier to find the actual code that belongs to a function. Also reindent where appropriate and remove dead code.	14 years ago
Ronald S. Bultje	71d9c33c86	swscale: remove duplicate mmx/mmx2 functions if they are identical.	14 years ago
Ronald S. Bultje	acb96bc268	swscale: remove if (c->dstFormat) branch from yuv2packed[12X](). This allows cutting up the function in much smaller and easier- to-maintain chunks.	14 years ago
Ronald S. Bultje	b6cac9b3bf	swscale: remove if(full_chr_int) from yuv2packed1(). If that flag is set, swScale() already proxies the call to yuv2rgbXinC_full(). Therefore, this flag is never set when yuv2packed1() is called.	14 years ago
Ronald S. Bultje	2159a24573	swscale: remove if(accurate_rnd) branch from functions.	14 years ago
Diego Biurrun	0093199184	swscale: Remove commented-out printf cruft.	14 years ago
Ronald S. Bultje	1bb0f0c925	swscale: remove if(bitexact) branch from functions. Instead, only set the function pointers if bitexact flag is not set during initialization. Since a change in flags triggers a re-init anyway, this doesn't situations where flag values change during runtime.	14 years ago
Ronald S. Bultje	566b5fbbb3	swscale: remove if(canMMX2BeUsed) conditional. Instead, set function pointers conditionally during init. This patch also reveals a whole branch of dead assembly code that is therefore also removed.	14 years ago
Ronald S. Bultje	aaca69c130	swscale: remove swScale_{c,MMX,MMX2} duplication.	14 years ago
Ronald S. Bultje	c4fd283a46	swscale: use emms_c().	14 years ago
Ronald S. Bultje	b9eb2136af	swscale: remove dead macro WRITEBGR24OLD.	14 years ago
Ronald S. Bultje	1dd4f4be5a	swscale: remove AMD3DNOW "optimizations". The functions are identical to their MMX counterparts. Thus, pretending that swscale is highly optimized for AMD3DNOW extensions is a poorly executed practical joke at best.	14 years ago
Ronald S. Bultje	11ffefefdb	swscale: remove duplicated x86/ functions.	14 years ago
Ronald S. Bultje	e66149e714	swscale: force --enable-runtime-cpudetect and remove SWS_CPU_CAPS_*.	14 years ago

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54 Commits (83632cbb1111f56cb3987c6c56b63dbd8b3fdce1)