Originally committed as revision 24885 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24816 to svn://svn.ffmpeg.org/ffmpeg/trunk

Help further refactoring.

Originally committed as revision 24814 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24573 to svn://svn.ffmpeg.org/ffmpeg/trunk

irrational number.

Originally committed as revision 24439 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Originally committed as revision 24290 to svn://svn.ffmpeg.org/ffmpeg/trunk

and intreadwrite.h API public interface).

Originally committed as revision 24190 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk

Other parts of FFmpeg use NE (native endian) rather than ME (machine).
This makes it consistent.

Originally committed as revision 24169 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24155 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 24153 to svn://svn.ffmpeg.org/ffmpeg/trunk

rename, done in r24101.

Originally committed as revision 24128 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24126 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24116 to svn://svn.ffmpeg.org/ffmpeg/trunk

This is clearer than comparing against an unsigned number to force an unsigned
comparison that we need.

Originally committed as revision 24114 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24108 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24102 to svn://svn.ffmpeg.org/ffmpeg/trunk

The old names were not av_ prefixed, and they were causing linking
failure on many platforms.  The new names are also more descriptive.

Patch by Stefano Sabatini.

Originally committed as revision 24101 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24089 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24088 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 24086 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24085 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24048 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Eli Friedman, eli d friedman a gmail

Originally committed as revision 24022 to svn://svn.ffmpeg.org/ffmpeg/trunk

Compiler output unchanged with gcc 4.4.

Originally committed as revision 24006 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23997 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23985 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23981 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23979 to svn://svn.ffmpeg.org/ffmpeg/trunk

Doxygen gets confused without an explicit parameter name.

Originally committed as revision 23972 to svn://svn.ffmpeg.org/ffmpeg/trunk

This fixes one Doxygen warning each.

Originally committed as revision 23970 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoid a compile-time dependency of the pad filter on libavcodec.

Originally committed as revision 23940 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23932 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23931 to svn://svn.ffmpeg.org/ffmpeg/trunk

If both /dev/random and /dev/urandom failed to return data, an
uninitialised value might be returned.  Since most systems have a
non-blocking /dev/urandom or have /dev/random with similar properties,
the chance of blocking is minimal, and the alternative of returning
non-random data is worse.

Originally committed as revision 23930 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23911 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23910 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23909 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23908 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23907 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23905 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk

Attempt to read from /dev/urandom and /dev/random with O_NONBLOCK set.
If neither succeeds, proceed with fallbacks.

Originally committed as revision 23903 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makes it give correct results with e.g. gcc 4.4.
For unknown reasons the generate asm code also changes
on e.g. gcc 4.3, making the code a bit larger but also
a bit faster.

Originally committed as revision 23896 to svn://svn.ffmpeg.org/ffmpeg/trunk