58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/*
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* Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
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*
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* This file is part of libswresample
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*
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* libswresample 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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* libswresample 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 libswresample; 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 "libswresample/swresample_internal.h"
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#include "libswresample/audioconvert.h"
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#define MULTI_CAPS_FUNC_DECL(cap) \
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void ff_int16_to_int32_a_ ## cap(uint8_t **dst, const uint8_t **src, int len);
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MULTI_CAPS_FUNC_DECL(mmx)
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MULTI_CAPS_FUNC_DECL(sse)
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void ff_int32_to_float_a_sse2(uint8_t **dst, const uint8_t **src, int len);
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void ff_int16_to_float_a_sse2(uint8_t **dst, const uint8_t **src, int len);
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void swri_audio_convert_init_x86(struct AudioConvert *ac,
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enum AVSampleFormat out_fmt,
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enum AVSampleFormat in_fmt,
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int channels){
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int mm_flags = av_get_cpu_flags();
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ac->simd_f= NULL;
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//FIXME add memcpy case
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#define MULTI_CAPS_FUNC(flag, cap) \
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if (mm_flags & flag) {\
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if( out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S16P)\
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ac->simd_f = ff_int16_to_int32_a_ ## cap;\
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}
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MULTI_CAPS_FUNC(AV_CPU_FLAG_MMX, mmx)
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MULTI_CAPS_FUNC(AV_CPU_FLAG_SSE, sse)
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if(mm_flags & AV_CPU_FLAG_SSE2) {
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if( out_fmt == AV_SAMPLE_FMT_FLT && in_fmt == AV_SAMPLE_FMT_S32 || out_fmt == AV_SAMPLE_FMT_FLTP && in_fmt == AV_SAMPLE_FMT_S32P)
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ac->simd_f = ff_int32_to_float_a_sse2;
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if( out_fmt == AV_SAMPLE_FMT_FLT && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_FLTP && in_fmt == AV_SAMPLE_FMT_S16P)
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ac->simd_f = ff_int16_to_float_a_sse2;
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}
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}
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