aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net>
*
* This file is part of FFmpeg.
*
* FFmpeg 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "libavutil/cpu.h"
#include "libavutil/arm/cpu.h"
#include "libavutil/internal.h"
#include "libavutil/samplefmt.h"
#include "libavresample/resample.h"
#include "asm-offsets.h"
AV_CHECK_OFFSET(struct ResampleContext, filter_bank, FILTER_BANK);
AV_CHECK_OFFSET(struct ResampleContext, filter_length, FILTER_LENGTH);
AV_CHECK_OFFSET(struct ResampleContext, src_incr, SRC_INCR);
AV_CHECK_OFFSET(struct ResampleContext, phase_shift, PHASE_SHIFT);
AV_CHECK_OFFSET(struct ResampleContext, phase_mask, PHASE_MASK);
void ff_resample_one_flt_neon(struct ResampleContext *c, void *dst0,
int dst_index, const void *src0,
unsigned int index, int frac);
void ff_resample_one_s16_neon(struct ResampleContext *c, void *dst0,
int dst_index, const void *src0,
unsigned int index, int frac);
void ff_resample_one_s32_neon(struct ResampleContext *c, void *dst0,
int dst_index, const void *src0,
unsigned int index, int frac);
void ff_resample_linear_flt_neon(struct ResampleContext *c, void *dst0,
int dst_index, const void *src0,
unsigned int index, int frac);
av_cold void ff_audio_resample_init_arm(ResampleContext *c,
enum AVSampleFormat sample_fmt)
{
int cpu_flags = av_get_cpu_flags();
if (have_neon(cpu_flags)) {
switch (sample_fmt) {
case AV_SAMPLE_FMT_FLTP:
if (c->linear)
c->resample_one = ff_resample_linear_flt_neon;
else
c->resample_one = ff_resample_one_flt_neon;
break;
case AV_SAMPLE_FMT_S16P:
if (!c->linear)
c->resample_one = ff_resample_one_s16_neon;
break;
case AV_SAMPLE_FMT_S32P:
if (!c->linear)
c->resample_one = ff_resample_one_s32_neon;
break;
}
}
}
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