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Member "ffmpeg-4.0.1/libavcodec/x86/aacencdsp_init.c" (13 Apr 2018, 1538 Bytes) of package /linux/misc/ffmpeg-4.0.1.tar.xz:


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    1 /*
    2  * AAC encoder assembly optimizations
    3  * Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
    4  *
    5  * This file is part of FFmpeg.
    6  *
    7  * FFmpeg is free software; you can redistribute it and/or
    8  * modify it under the terms of the GNU Lesser General Public
    9  * License as published by the Free Software Foundation; either
   10  * version 2.1 of the License, or (at your option) any later version.
   11  *
   12  * FFmpeg is distributed in the hope that it will be useful,
   13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   15  * Lesser General Public License for more details.
   16  *
   17  * You should have received a copy of the GNU Lesser General Public
   18  * License along with FFmpeg; if not, write to the Free Software
   19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   20  */
   21 
   22 #include "config.h"
   23 
   24 #include "libavutil/float_dsp.h"
   25 #include "libavutil/x86/cpu.h"
   26 #include "libavcodec/aacenc.h"
   27 
   28 void ff_abs_pow34_sse(float *out, const float *in, const int size);
   29 
   30 void ff_aac_quantize_bands_sse2(int *out, const float *in, const float *scaled,
   31                                 int size, int is_signed, int maxval, const float Q34,
   32                                 const float rounding);
   33 
   34 av_cold void ff_aac_dsp_init_x86(AACEncContext *s)
   35 {
   36     int cpu_flags = av_get_cpu_flags();
   37 
   38     if (EXTERNAL_SSE(cpu_flags))
   39         s->abs_pow34   = ff_abs_pow34_sse;
   40 
   41     if (EXTERNAL_SSE2(cpu_flags))
   42         s->quant_bands = ff_aac_quantize_bands_sse2;
   43 }