| Commit message (Collapse) | Author | Age |
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Fixes overflows for large image sizes.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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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>
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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.
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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.
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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.
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This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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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.
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This will likely lead to a considerable performance boost,
since it removes a branch from the inner loop. Part of the
Great Evil Plan to simplify swscale.
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Make yuv2yuvX16_c a function pointer for yuv2yuvX(), so that the
function pointer becomes bitdepth-independent.
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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Also remove code that overwrites the C versions of functions in
sws_init_swScale_altivec(), so that it uses the C functions of files
if no altivec-optimized version exists.
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Fix handling of input if not in native endianness, and add support for
9/10-bit output. This allows us to force endianness of YUV420P 9/10bit
in the H264/10bit fate tests, which should fix them on big-endian
systems.
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PPC and x86 code is split off from swscale_template.c. Lots of code is
still duplicated and should be removed later.
Again uniformize the init system to be more similar to the dsputil one.
Unset h*scale_fast in the x86 init in order to make the output
consistent with the previous status. Thanks to Josh for spotting it.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
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Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
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definition of ff_yuv2packedX_altivec
Originally committed as revision 31782 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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Originally committed as revision 31781 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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Originally committed as revision 31780 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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Originally committed as revision 30385 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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Originally committed as revision 29674 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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- Place curly brackets in the same line as while/for/if/switch/else/do;
- Place curly brackets at column 0 in the next line starting a function.
Originally committed as revision 29523 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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- Use 4 spaces throughout for indentation;
- Fix inconsistent indentation;
- Indent function calls and declarations aligning arguments on multiple lines
to the column after the opening parentheses;
- Align asm code to the column 4 spaces after the call to __asm__();
- Align cases in switch statements to the same column as "switch".
Originally committed as revision 29522 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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Originally committed as revision 29485 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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