Call the RDFT by a function pointer like other FFT related transforms. This makes instruction set optimized versions possible. Based on patch by Alex Converse. Originally committed as revision 22609 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 22291 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 22290 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk