From 715ed57ab1650cac0c6279d9cd60b2c63d32539c Mon Sep 17 00:00:00 2001 From: Klaus Schmidinger Date: Sun, 24 Feb 2002 14:07:21 +0100 Subject: Removed DVD support from the core VDR source --- ac3dec/srfft_kni_c.c | 93 ---------------------------------------------------- 1 file changed, 93 deletions(-) delete mode 100644 ac3dec/srfft_kni_c.c (limited to 'ac3dec/srfft_kni_c.c') diff --git a/ac3dec/srfft_kni_c.c b/ac3dec/srfft_kni_c.c deleted file mode 100644 index d461110f..00000000 --- a/ac3dec/srfft_kni_c.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * srfft_kni.c - * - * Copyright (C) Yuqing Deng - April 2000 - * - * 64 and 128 point split radix fft for ac3dec - * - * The algorithm is desribed in the book: - * "Computational Frameworks of the Fast Fourier Transform". - * - * The ideas and the the organization of code borrowed from djbfft written by - * D. J. Bernstein . djbff can be found at - * http://cr.yp.to/djbfft.html. - * - * srfft.c is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * srfft.c is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#ifdef __i386__ - -#include - -#include "srfft_kni.h" -#include "srfftp.h" - -void fft_64p_kni(complex_t *a) -{ - fft_8_kni(&a[0]); fft_4_kni(&a[8]); fft_4_kni(&a[12]); - fft_asmb_kni(2, &a[0], &a[8], &delta16[0], &delta16_3[0]); - - fft_8_kni(&a[16]), fft_8_kni(&a[24]); - fft_asmb_kni(4, &a[0], &a[16],&delta32[0], &delta32_3[0]); - - fft_8_kni(&a[32]); fft_4_kni(&a[40]); fft_4_kni(&a[44]); - fft_asmb_kni(2, &a[32], &a[40], &delta16[0], &delta16_3[0]); - - fft_8_kni(&a[48]); fft_4_kni(&a[56]); fft_4_kni(&a[60]); - fft_asmb_kni(2, &a[48], &a[56], &delta16[0], &delta16_3[0]); - - fft_asmb_kni(8, &a[0], &a[32],&delta64[0], &delta64_3[0]); -} - - -void fft_128p_kni(complex_t *a) -{ - fft_8_kni(&a[0]); fft_4_kni(&a[8]); fft_4_kni(&a[12]); - fft_asmb_kni(2, &a[0], &a[8], &delta16[0], &delta16_3[0]); - - fft_8_kni(&a[16]), fft_8_kni(&a[24]); - fft_asmb_kni(4, &a[0], &a[16],&delta32[0], &delta32_3[0]); - - fft_8_kni(&a[32]); fft_4_kni(&a[40]); fft_4_kni(&a[44]); - fft_asmb_kni(2, &a[32], &a[40], &delta16[0], &delta16_3[0]); - - fft_8_kni(&a[48]); fft_4_kni(&a[56]); fft_4_kni(&a[60]); - fft_asmb_kni(2, &a[48], &a[56], &delta16[0], &delta16_3[0]); - - fft_asmb_kni(8, &a[0], &a[32],&delta64[0], &delta64_3[0]); - - fft_8_kni(&a[64]); fft_4_kni(&a[72]); fft_4_kni(&a[76]); - /* fft_16(&a[64]); */ - fft_asmb_kni(2, &a[64], &a[72], &delta16[0], &delta16_3[0]); - - fft_8_kni(&a[80]); fft_8_kni(&a[88]); - - /* fft_32(&a[64]); */ - fft_asmb_kni(4, &a[64], &a[80],&delta32[0], &delta32_3[0]); - - fft_8_kni(&a[96]); fft_4_kni(&a[104]), fft_4_kni(&a[108]); - /* fft_16(&a[96]); */ - fft_asmb_kni(2, &a[96], &a[104], &delta16[0], &delta16_3[0]); - - fft_8_kni(&a[112]), fft_8_kni(&a[120]); - /* fft_32(&a[96]); */ - fft_asmb_kni(4, &a[96], &a[112], &delta32[0], &delta32_3[0]); - - /* fft_128(&a[0]); */ - fft_asmb_kni(16, &a[0], &a[64], &delta128[0], &delta128_3[0]); -} - -#endif -- cgit v1.2.3