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pixel formats


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Patch by Victor Paesa <wzrlpy@arsystel.com>
Original thread:
Date: Aug 31, 2006 7:15 PM
Subject: [Ffmpeg-devel] [PATCH] Add sws_getCachedContext() to swscale library


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header files that happen to have the same name as internal ones.
based on a patch by Vladislav Naumov, vladislav.naumov **at** gmail **dot** com


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--enable-debug).
Fix from Jason Tackaberry for his previous -fPIC patch.


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patch by Jason Tackaberry, tack /at/ urandom /dot/ ca


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MMX2 code, because the HAVE_ defines do not have sane values here if
runtime cpudetection is used. Hopefully fixes runtime cpudetection
breakage from r19339.


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be protected by HAVE_MMX.


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update


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the +-1 issue is limited to >2tap vertical filters, so bilinear upscale was unaffected
the new code is sometime faster sometimes slower but the difference is significant (~20%) so its optional and enabled with arnd=1


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mv_malloc)


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fixes crashes on AMD64.


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also on 64 bit systems.


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this is certainly not the most beautifull but it should work without -fomit-frame-pointer and PIC and gcc-4 vomits when ebp is given in a constraint directly even with -fomi-frame-pointer so theres not that much choice ...
if anyone knows a simpler/cleaner solution, dont hesitate to suggest it ...


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stride!=width.


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