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

Iterative implementation of 32 bit fixed point split-radix FFT.
Max FFT that can be calculated currently is 2^12.
Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This makes only tests actually using avconv depend on it.
The remaining tests already depend on what they need.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This can be useful for testing.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This tests sizes from 16 to 4096, not only the default 512.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

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

This moves some groups of tests for single codecs to separate files,
and adds shorthands for running all tests in a group.

Originally committed as revision 24697 to svn://svn.ffmpeg.org/ffmpeg/trunk