Add some more verbose info regarding why the imprecise and slow floor(x+0.5) hack
is used; helpful for future maintenance.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanag@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This simplifies and cleans up the code.
Furthermore, it is much faster due to absence of the slow log computation.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This function allows writing AVRationals as IEEE floats without the need
of platform dependant float operations

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This should workaround issues with these functions on ia64 and sparc64

Fixes Ticket2713

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This should fix some fate failure

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The old check would fail on huge but not infinite values
and the later code could then fail to handle them correctly in
some cases.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The first parameter is a pointer and NULL is more correct

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Originally committed as revision 25339 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25332 to svn://svn.ffmpeg.org/ffmpeg/trunk

It may cause exceptions on some platform.

Originally committed as revision 25311 to svn://svn.ffmpeg.org/ffmpeg/trunk

This avoids conflicts with the system assert.h.

Originally committed as revision 25284 to svn://svn.ffmpeg.org/ffmpeg/trunk

With this the developer can now choose if he wants an assert always enabled or at which
compile time assert level. This can thus replace the #define NDEBUG hacks

Originally committed as revision 25278 to svn://svn.ffmpeg.org/ffmpeg/trunk

This fixes aspect ratio calculation for encoding from files with 0/0 stored,
common with ogg/theora

Originally committed as revision 23280 to svn://svn.ffmpeg.org/ffmpeg/trunk

Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk

Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.

Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16910 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16748 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16653 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15415 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Dujardin Bernard %dujardin P iut A numericable P fr%

Originally committed as revision 8132 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7431 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7187 to svn://svn.ffmpeg.org/ffmpeg/trunk

based on a patch by Uoti Urpala

Originally committed as revision 7186 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk

and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5802 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5801 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4489 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3317 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 2522 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 2407 to svn://svn.ffmpeg.org/ffmpeg/trunk

sample_aspect_ratio
aspect ratio in JPEG JFIF is SAR not DAR !
removed nonsense SAR guessing code
various related cleanups
bugs?

Originally committed as revision 2403 to svn://svn.ffmpeg.org/ffmpeg/trunk