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The ff_inverse table is used by FASTDIV macro, defined in libavutil, but up to now the table was defined only in libavcodec. After this change, the main copy of ff_inverse is part of libavutil (just like FASTDIV), but if CONFIG_SMALL is unset, then a different copy is made available to libavcodec, to avoid the performance penalty of using an external look up table. Dynamic linking works, because the libraries are linked with -Bsymbolic, so the local copy of the symbol has priority over the external; static linking works because the table is on a standalone object file in both libraries, so the linker is able to discard one of the two. Tested on Linux/x86-64 and Mac OS X/x86-64. Originally committed as revision 24383 to svn://svn.ffmpeg.org/ffmpeg/trunk |
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doc | ||
ffpresets | ||
libavcodec | ||
libavdevice | ||
libavfilter | ||
libavformat | ||
libavutil | ||
libpostproc | ||
libswscale | ||
tests | ||
tools | ||
Changelog | ||
cmdutils_common_opts.h | ||
cmdutils.c | ||
cmdutils.h | ||
common.mak | ||
configure | ||
COPYING.GPLv2 | ||
COPYING.GPLv3 | ||
COPYING.LGPLv2.1 | ||
COPYING.LGPLv3 | ||
CREDITS | ||
Doxyfile | ||
ffmpeg.c | ||
ffplay.c | ||
ffprobe.c | ||
ffserver.c | ||
ffserver.h | ||
INSTALL | ||
LICENSE | ||
MAINTAINERS | ||
Makefile | ||
README | ||
subdir.mak | ||
version.sh |
FFmpeg README ------------- 1) Documentation ---------------- * Read the documentation in the doc/ directory. 2) Licensing ------------ * See the LICENSE file.