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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6148 | serge | 1 | /* |
| 2 | * This file is part of FFmpeg. |
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| 3 | * |
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| 4 | * FFmpeg is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * FFmpeg is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with FFmpeg; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | */ |
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| 18 | |||
| 19 | #include "config.h" |
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| 20 | #include "libavutil/attributes.h" |
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| 21 | #include "libavutil/cpu.h" |
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| 22 | #include "libavutil/samplefmt.h" |
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| 23 | #include "libavutil/x86/cpu.h" |
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| 24 | #include "libavfilter/af_volume.h" |
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| 25 | |||
| 26 | void ff_scale_samples_s16_sse2(uint8_t *dst, const uint8_t *src, int len, |
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| 27 | int volume); |
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| 28 | |||
| 29 | void ff_scale_samples_s32_sse2(uint8_t *dst, const uint8_t *src, int len, |
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| 30 | int volume); |
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| 31 | void ff_scale_samples_s32_ssse3_atom(uint8_t *dst, const uint8_t *src, int len, |
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| 32 | int volume); |
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| 33 | void ff_scale_samples_s32_avx(uint8_t *dst, const uint8_t *src, int len, |
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| 34 | int volume); |
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| 35 | |||
| 36 | av_cold void ff_volume_init_x86(VolumeContext *vol) |
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| 37 | { |
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| 38 | int cpu_flags = av_get_cpu_flags(); |
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| 39 | enum AVSampleFormat sample_fmt = av_get_packed_sample_fmt(vol->sample_fmt); |
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| 40 | |||
| 41 | if (sample_fmt == AV_SAMPLE_FMT_S16) { |
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| 42 | if (EXTERNAL_SSE2(cpu_flags) && vol->volume_i < 32768) { |
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| 43 | vol->scale_samples = ff_scale_samples_s16_sse2; |
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| 44 | vol->samples_align = 8; |
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| 45 | } |
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| 46 | } else if (sample_fmt == AV_SAMPLE_FMT_S32) { |
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| 47 | if (EXTERNAL_SSE2(cpu_flags)) { |
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| 48 | vol->scale_samples = ff_scale_samples_s32_sse2; |
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| 49 | vol->samples_align = 4; |
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| 50 | } |
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| 51 | if (EXTERNAL_SSSE3(cpu_flags) && cpu_flags & AV_CPU_FLAG_ATOM) { |
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| 52 | vol->scale_samples = ff_scale_samples_s32_ssse3_atom; |
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| 53 | vol->samples_align = 4; |
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| 54 | } |
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| 55 | if (EXTERNAL_AVX(cpu_flags)) { |
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| 56 | vol->scale_samples = ff_scale_samples_s32_avx; |
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| 57 | vol->samples_align = 8; |
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| 58 | } |
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| 59 | } |
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| 60 | } |