* Copyright (c) 2000, 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
#include "fmtconvert.h"
+#include "libavutil/common.h"
-static void int32_to_float_fmul_scalar_c(float *dst, const int *src, float mul, int len){
+static void int32_to_float_fmul_scalar_c(float *dst, const int32_t *src,
+ float mul, int len)
+{
int i;
for(i=0; i<len; i++)
dst[i] = src[i] * mul;
}
-static av_always_inline int float_to_int16_one(const float *src){
- return av_clip_int16(lrintf(*src));
-}
-
-static void float_to_int16_c(int16_t *dst, const float *src, long len)
+static void int32_to_float_c(float *dst, const int32_t *src, intptr_t len)
{
int i;
- for(i=0; i<len; i++)
- dst[i] = float_to_int16_one(src+i);
+
+ for (i = 0; i < len; i++)
+ dst[i] = (float)src[i];
}
-static void float_to_int16_interleave_c(int16_t *dst, const float **src,
- long len, int channels)
+static void int32_to_float_fmul_array8_c(FmtConvertContext *c, float *dst,
+ const int32_t *src, const float *mul,
+ int len)
{
- int i,j,c;
- if(channels==2){
- for(i=0; i<len; i++){
- dst[2*i] = float_to_int16_one(src[0]+i);
- dst[2*i+1] = float_to_int16_one(src[1]+i);
- }
- }else{
- for(c=0; c<channels; c++)
- for(i=0, j=c; i<len; i++, j+=channels)
- dst[j] = float_to_int16_one(src[c]+i);
- }
+ int i;
+ for (i = 0; i < len; i += 8)
+ c->int32_to_float_fmul_scalar(&dst[i], &src[i], *mul++, 8);
}
av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx)
{
+ c->int32_to_float = int32_to_float_c;
c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_c;
- c->float_to_int16 = float_to_int16_c;
- c->float_to_int16_interleave = float_to_int16_interleave_c;
+ c->int32_to_float_fmul_array8 = int32_to_float_fmul_array8_c;
- if (ARCH_ARM) ff_fmt_convert_init_arm(c, avctx);
- if (HAVE_ALTIVEC) ff_fmt_convert_init_ppc(c, avctx);
- if (HAVE_MMX) ff_fmt_convert_init_x86(c, avctx);
+ if (ARCH_AARCH64)
+ ff_fmt_convert_init_aarch64(c, avctx);
+ if (ARCH_ARM)
+ ff_fmt_convert_init_arm(c, avctx);
+ if (ARCH_PPC)
+ ff_fmt_convert_init_ppc(c, avctx);
+ if (ARCH_X86)
+ ff_fmt_convert_init_x86(c, avctx);
}