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71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/*
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* ARM NEON optimised HEVC IDCT
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* Copyright (c) 2017 Alexandra Hájková
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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 "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/arm/cpu.h"
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#include "libavcodec/hevcdsp.h"
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void ff_hevc_idct_4x4_dc_8_neon(int16_t *coeffs);
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void ff_hevc_idct_8x8_dc_8_neon(int16_t *coeffs);
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void ff_hevc_idct_16x16_dc_8_neon(int16_t *coeffs);
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void ff_hevc_idct_32x32_dc_8_neon(int16_t *coeffs);
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void ff_hevc_idct_4x4_dc_10_neon(int16_t *coeffs);
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void ff_hevc_idct_8x8_dc_10_neon(int16_t *coeffs);
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void ff_hevc_idct_16x16_dc_10_neon(int16_t *coeffs);
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void ff_hevc_idct_32x32_dc_10_neon(int16_t *coeffs);
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void ff_hevc_idct_4x4_8_neon(int16_t *coeffs, int col_limit);
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void ff_hevc_idct_8x8_8_neon(int16_t *coeffs, int col_limit);
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void ff_hevc_idct_16x16_8_neon(int16_t *coeffs, int col_limit);
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void ff_hevc_idct_4x4_10_neon(int16_t *coeffs, int col_limit);
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void ff_hevc_idct_8x8_10_neon(int16_t *coeffs, int col_limit);
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void ff_hevc_idct_16x16_10_neon(int16_t *coeffs, int col_limit);
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av_cold void ff_hevc_dsp_init_arm(HEVCDSPContext *c, int bit_depth)
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{
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int cpu_flags = av_get_cpu_flags();
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if (have_neon(cpu_flags)) {
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if (bit_depth == 8) {
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c->idct_dc[0] = ff_hevc_idct_4x4_dc_8_neon;
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c->idct_dc[1] = ff_hevc_idct_8x8_dc_8_neon;
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c->idct_dc[2] = ff_hevc_idct_16x16_dc_8_neon;
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c->idct_dc[3] = ff_hevc_idct_32x32_dc_8_neon;
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c->idct[0] = ff_hevc_idct_4x4_8_neon;
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c->idct[1] = ff_hevc_idct_8x8_8_neon;
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c->idct[2] = ff_hevc_idct_16x16_8_neon;
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}
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if (bit_depth == 10) {
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c->idct_dc[0] = ff_hevc_idct_4x4_dc_10_neon;
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c->idct_dc[1] = ff_hevc_idct_8x8_dc_10_neon;
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c->idct_dc[2] = ff_hevc_idct_16x16_dc_10_neon;
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c->idct_dc[3] = ff_hevc_idct_32x32_dc_10_neon;
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c->idct[0] = ff_hevc_idct_4x4_10_neon;
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c->idct[1] = ff_hevc_idct_8x8_10_neon;
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c->idct[2] = ff_hevc_idct_16x16_10_neon;
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}
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}
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}
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