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/* |
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* Format Conversion Utils |
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* Copyright (c) 2000, 2001 Fabrice Bellard |
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 "avcodec.h" |
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#include "fmtconvert.h" |
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#include "libavutil/common.h" |
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static void int32_to_float_fmul_scalar_c(float *dst, const int32_t *src, |
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float mul, int len) |
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{ |
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int i; |
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✓✓ |
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for(i=0; i<len; i++) |
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dst[i] = src[i] * mul; |
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} |
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static void int32_to_float_c(float *dst, const int32_t *src, intptr_t len) |
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{ |
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int i; |
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for (i = 0; i < len; i++) |
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dst[i] = (float)src[i]; |
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} |
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static void int32_to_float_fmul_array8_c(FmtConvertContext *c, float *dst, |
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const int32_t *src, const float *mul, |
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int len) |
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{ |
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int i; |
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✓✓ |
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for (i = 0; i < len; i += 8) |
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c->int32_to_float_fmul_scalar(&dst[i], &src[i], *mul++, 8); |
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} |
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av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx) |
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{ |
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c->int32_to_float = int32_to_float_c; |
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c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_c; |
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c->int32_to_float_fmul_array8 = int32_to_float_fmul_array8_c; |
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if (ARCH_AARCH64) |
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ff_fmt_convert_init_aarch64(c, avctx); |
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if (ARCH_ARM) |
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ff_fmt_convert_init_arm(c, avctx); |
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if (ARCH_PPC) |
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ff_fmt_convert_init_ppc(c, avctx); |
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if (ARCH_X86) |
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ff_fmt_convert_init_x86(c, avctx); |
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if (HAVE_MIPSFPU) |
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ff_fmt_convert_init_mips(c); |
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} |