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Diffstat (limited to 'libavcodec/x86/mdct15_init.c')
-rw-r--r--libavcodec/x86/mdct15_init.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/libavcodec/x86/mdct15_init.c b/libavcodec/x86/mdct15_init.c
deleted file mode 100644
index ea7301e1e7..0000000000
--- a/libavcodec/x86/mdct15_init.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * SIMD optimized non-power-of-two MDCT functions
- *
- * Copyright (C) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-
-#include "config.h"
-
-#include "libavutil/attributes.h"
-#include "libavutil/x86/cpu.h"
-#include "libavcodec/mdct15.h"
-
-void ff_mdct15_postreindex_sse3(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
-void ff_mdct15_postreindex_avx2(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
-
-void ff_fft15_avx(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
-
-static void perm_twiddles(MDCT15Context *s)
-{
- int k;
- FFTComplex tmp[30];
-
- /* 5-point FFT twiddles */
- s->exptab[60].re = s->exptab[60].im = s->exptab[19].re;
- s->exptab[61].re = s->exptab[61].im = s->exptab[19].im;
- s->exptab[62].re = s->exptab[62].im = s->exptab[20].re;
- s->exptab[63].re = s->exptab[63].im = s->exptab[20].im;
-
- /* 15-point FFT twiddles */
- for (k = 0; k < 5; k++) {
- tmp[6*k + 0] = s->exptab[k + 0];
- tmp[6*k + 2] = s->exptab[k + 5];
- tmp[6*k + 4] = s->exptab[k + 10];
-
- tmp[6*k + 1] = s->exptab[2 * (k + 0)];
- tmp[6*k + 3] = s->exptab[2 * (k + 5)];
- tmp[6*k + 5] = s->exptab[2 * k + 5 ];
- }
-
- for (k = 0; k < 6; k++) {
- FFTComplex ac_exp[] = {
- { tmp[6*1 + k].re, tmp[6*1 + k].re },
- { tmp[6*2 + k].re, tmp[6*2 + k].re },
- { tmp[6*3 + k].re, tmp[6*3 + k].re },
- { tmp[6*4 + k].re, tmp[6*4 + k].re },
- { tmp[6*1 + k].im, -tmp[6*1 + k].im },
- { tmp[6*2 + k].im, -tmp[6*2 + k].im },
- { tmp[6*3 + k].im, -tmp[6*3 + k].im },
- { tmp[6*4 + k].im, -tmp[6*4 + k].im },
- };
- memcpy(s->exptab + 8*k, ac_exp, 8*sizeof(FFTComplex));
- }
-
- /* Specialcase when k = 0 */
- for (k = 0; k < 3; k++) {
- FFTComplex dc_exp[] = {
- { tmp[2*k + 0].re, -tmp[2*k + 0].im },
- { tmp[2*k + 0].im, tmp[2*k + 0].re },
- { tmp[2*k + 1].re, -tmp[2*k + 1].im },
- { tmp[2*k + 1].im, tmp[2*k + 1].re },
- };
- memcpy(s->exptab + 8*6 + 4*k, dc_exp, 4*sizeof(FFTComplex));
- }
-}
-
-av_cold void ff_mdct15_init_x86(MDCT15Context *s)
-{
- int adjust_twiddles = 0;
- int cpu_flags = av_get_cpu_flags();
-
- if (EXTERNAL_SSE3(cpu_flags))
- s->postreindex = ff_mdct15_postreindex_sse3;
-
-#if ARCH_X86_64
- if (EXTERNAL_AVX(cpu_flags)) {
- s->fft15 = ff_fft15_avx;
- adjust_twiddles = 1;
- }
-
- if (EXTERNAL_AVX2_FAST(cpu_flags))
- s->postreindex = ff_mdct15_postreindex_avx2;
-#endif
-
- if (adjust_twiddles)
- perm_twiddles(s);
-}