2 * ARM optimized Format Conversion Utils
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libavutil/attributes.h"
24 #include "libavutil/arm/cpu.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavcodec/fmtconvert.h"
28 void ff_int32_to_float_fmul_scalar_neon(float *dst, const int32_t *src,
31 void ff_int32_to_float_fmul_scalar_vfp(float *dst, const int32_t *src,
33 void ff_int32_to_float_fmul_array8_vfp(FmtConvertContext *c, float *dst,
34 const int32_t *src, const float *mul,
37 av_cold void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx)
39 int cpu_flags = av_get_cpu_flags();
41 if (have_vfp(cpu_flags)) {
42 if (!have_vfpv3(cpu_flags)) {
43 c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_vfp;
44 c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_vfp;
48 if (have_neon(cpu_flags)) {
49 c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon;