GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/x86/fft_init.c Lines: 13 14 92.9 %
Date: 2020-09-25 14:59:26 Branches: 8 10 80.0 %

Line Branch Exec Source
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/*
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/cpu.h"
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#include "fft.h"
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3378
av_cold void ff_fft_init_x86(FFTContext *s)
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{
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    int cpu_flags = av_get_cpu_flags();
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    if (s->nbits > 16)
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        return;
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#if ARCH_X86_32
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    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
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        s->imdct_calc = ff_imdct_calc_3dnow;
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        s->imdct_half = ff_imdct_half_3dnow;
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        s->fft_calc   = ff_fft_calc_3dnow;
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    }
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    if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) {
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        s->imdct_calc = ff_imdct_calc_3dnowext;
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        s->imdct_half = ff_imdct_half_3dnowext;
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        s->fft_calc   = ff_fft_calc_3dnowext;
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    }
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#endif /* ARCH_X86_32 */
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    if (EXTERNAL_SSE(cpu_flags)) {
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388
        s->imdct_calc  = ff_imdct_calc_sse;
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        s->imdct_half  = ff_imdct_half_sse;
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        s->fft_permute = ff_fft_permute_sse;
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        s->fft_calc    = ff_fft_calc_sse;
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        s->fft_permutation = FF_FFT_PERM_SWAP_LSBS;
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    }
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    if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) {
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        s->imdct_half      = ff_imdct_half_avx;
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        s->fft_calc        = ff_fft_calc_avx;
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        s->fft_permutation = FF_FFT_PERM_AVX;
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    }
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}