| 0,0 → 1,60 |
|---|
| /* |
| * 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/attributes.h" |
| #include "libavutil/cpu.h" |
| #include "libavutil/samplefmt.h" |
| #include "libavutil/x86/cpu.h" |
| #include "libavfilter/af_volume.h" |
| |
| void ff_scale_samples_s16_sse2(uint8_t *dst, const uint8_t *src, int len, |
| int volume); |
| |
| void ff_scale_samples_s32_sse2(uint8_t *dst, const uint8_t *src, int len, |
| int volume); |
| void ff_scale_samples_s32_ssse3_atom(uint8_t *dst, const uint8_t *src, int len, |
| int volume); |
| void ff_scale_samples_s32_avx(uint8_t *dst, const uint8_t *src, int len, |
| int volume); |
| |
| av_cold void ff_volume_init_x86(VolumeContext *vol) |
| { |
| int cpu_flags = av_get_cpu_flags(); |
| enum AVSampleFormat sample_fmt = av_get_packed_sample_fmt(vol->sample_fmt); |
| |
| if (sample_fmt == AV_SAMPLE_FMT_S16) { |
| if (EXTERNAL_SSE2(cpu_flags) && vol->volume_i < 32768) { |
| vol->scale_samples = ff_scale_samples_s16_sse2; |
| vol->samples_align = 8; |
| } |
| } else if (sample_fmt == AV_SAMPLE_FMT_S32) { |
| if (EXTERNAL_SSE2(cpu_flags)) { |
| vol->scale_samples = ff_scale_samples_s32_sse2; |
| vol->samples_align = 4; |
| } |
| if (EXTERNAL_SSSE3(cpu_flags) && cpu_flags & AV_CPU_FLAG_ATOM) { |
| vol->scale_samples = ff_scale_samples_s32_ssse3_atom; |
| vol->samples_align = 4; |
| } |
| if (EXTERNAL_AVX(cpu_flags)) { |
| vol->scale_samples = ff_scale_samples_s32_avx; |
| vol->samples_align = 8; |
| } |
| } |
| } |