2 * ARM NEON optimised HEVC IDCT
3 * Copyright (c) 2017 Alexandra Hájková
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/arm/cpu.h"
26 #include "libavcodec/hevcdsp.h"
28 void ff_hevc_idct_4x4_8_neon(int16_t *coeffs, int col_limit);
29 void ff_hevc_idct_8x8_8_neon(int16_t *coeffs, int col_limit);
30 void ff_hevc_idct_4x4_10_neon(int16_t *coeffs, int col_limit);
31 void ff_hevc_idct_8x8_10_neon(int16_t *coeffs, int col_limit);
33 av_cold void ff_hevc_dsp_init_arm(HEVCDSPContext *c, int bit_depth)
35 int cpu_flags = av_get_cpu_flags();
37 if (have_neon(cpu_flags)) {
39 c->idct[0] = ff_hevc_idct_4x4_8_neon;
40 c->idct[1] = ff_hevc_idct_8x8_8_neon;
42 if (bit_depth == 10) {
43 c->idct[0] = ff_hevc_idct_4x4_10_neon;
44 c->idct[1] = ff_hevc_idct_8x8_10_neon;