1/* 2 * ARM optimized Format Conversion Utils 3 * 4 * This file is part of Libav. 5 * 6 * Libav 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. 10 * 11 * Libav 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. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with Libav; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21#include <stdint.h> 22 23#include "libavcodec/avcodec.h" 24#include "libavcodec/fmtconvert.h" 25 26void ff_int32_to_float_fmul_scalar_neon(float *dst, const int *src, 27 float mul, int len); 28 29void ff_float_to_int16_neon(int16_t *dst, const float *src, long len); 30void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int); 31 32void ff_float_to_int16_vfp(int16_t *dst, const float *src, long len); 33 34void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx) 35{ 36 if (HAVE_ARMVFP && HAVE_ARMV6) { 37 c->float_to_int16 = ff_float_to_int16_vfp; 38 } 39 40 if (HAVE_NEON) { 41 c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon; 42 43 if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { 44 c->float_to_int16 = ff_float_to_int16_neon; 45 c->float_to_int16_interleave = ff_float_to_int16_interleave_neon; 46 } 47 } 48} 49