On 26/12/15 01:45, Kip Warner wrote: > Any help appreciated. Got the time to read a little the code:
/** Map one real FFT into two parallel real even and odd FFTs. Then interleave * the two real FFTs into one complex FFT. Unmangle the results. * ref: http://www.engineeringproductivitytools.com/stuff/T0001/PT10.HTM */ static void rdft_calc_c(RDFTContext *s, FFTSample *data) the function lays down the data as even real - odd imaginary, ffwt according to the documentation lays the data as read first from 0 to N and imaginary after from N-1 to 1. Is shuffling the data around enough for your purposes? lu _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
