| /* |
| * 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; |
| } |
| } |
| } |