Fixes clang warning "absolute value function 'fabsf' given an argument
of type 'double' but has parameter of type 'float' which may cause
truncation of value [-Wabsolute-value]".

Whenever av_gettime() is used to measure relative period of time,
av_gettime_relative() is prefered as it guarantee monotonic time
on supported platforms.

Signed-off-by: Martin Storsjö <martin@martin.st>

The typedefs also exist in the avfft.h header and since typedefs cannot be
legally redefined in C, the code fails to compile with some compilers.

This reverts commits 11c7155cce and 57f1b1dcc7.

This fixes a number of incompatible pointer type warnings.

Also rearrange #includes into canonical order.

Also merge variable declaration and initialization.

The define does not originate from configure, so it should not
have a name that is CONFIG_-prefixed.

stdio.h needed for printf since 7177df90a0

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This allows compiling and running these tests on systems lacking a built-
in version of getopt(), such as MSVC.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

This can be useful for testing.

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

This avoids warnings about set-but-unused variables.

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

This leaves fft.h with only the core FFT and MDCT definitions
thus making it more managable.

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

This removes the rather pointless wrappers (one not even inline)
for calling the fft_calc and related function pointers.

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

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

Originally committed as revision 24799 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24708 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24693 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

Originally committed as revision 22793 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22792 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22290 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22289 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21338 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21141 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21140 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21085 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19931 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19679 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18877 to svn://svn.ffmpeg.org/ffmpeg/trunk

Scaling (i)MDCT output has no runtime overhead and can be used to improve
performance of audio codecs. All the changes are only needed in
'ff_mdct_init' function and slow down initialization a bit.

Originally committed as revision 18855 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18422 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18259 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18070 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 14702 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 13968 to svn://svn.ffmpeg.org/ffmpeg/trunk

Make sure we don't try to set them if that's the case.
This lets dct-test and fft-test build with --disable-mmx on x86, but not yet on ARM.

Originally committed as revision 13957 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec.a(dsputil_ppc.o): warning: definition of `mm_flags' overriding common
fft-test.o: warning: common is here

Originally committed as revision 13940 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9861 to svn://svn.ffmpeg.org/ffmpeg/trunk