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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * This file is part of libswresample. |
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| 3 | * |
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| 4 | * libswresample 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 | * libswresample 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 libswresample; 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 |
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| 20 | |||
| 21 | #include "config.h" |
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| 22 | #include "libavutil/attributes.h" |
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| 23 | #include "libavutil/cpu.h" |
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| 24 | #include "libavutil/arm/cpu.h" |
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| 25 | #include "libavutil/samplefmt.h" |
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| 26 | #include "libswresample/swresample_internal.h" |
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| 27 | #include "libswresample/audioconvert.h" |
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| 28 | |||
| 29 | void swri_oldapi_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len); |
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| 30 | void swri_oldapi_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels); |
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| 31 | void swri_oldapi_conv_fltp_to_s16_nch_neon(int16_t *dst, float *const *src, int len, int channels); |
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| 32 | |||
| 33 | static void conv_flt_to_s16_neon(uint8_t **dst, const uint8_t **src, int len){ |
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| 34 | swri_oldapi_conv_flt_to_s16_neon((int16_t*)*dst, (const float*)*src, len); |
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| 35 | } |
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| 36 | |||
| 37 | static void conv_fltp_to_s16_2ch_neon(uint8_t **dst, const uint8_t **src, int len){ |
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| 38 | swri_oldapi_conv_fltp_to_s16_2ch_neon((int16_t*)*dst, (float *const*)src, len, 2); |
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| 39 | } |
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| 40 | |||
| 41 | static void conv_fltp_to_s16_nch_neon(uint8_t **dst, const uint8_t **src, int len){ |
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| 42 | int channels; |
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| 43 | for(channels=3; channels |
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| 44 | ; |
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| 45 | swri_oldapi_conv_fltp_to_s16_nch_neon((int16_t*)*dst, (float *const*)src, len, channels); |
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| 46 | } |
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| 47 | |||
| 48 | av_cold void swri_audio_convert_init_arm(struct AudioConvert *ac, |
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| 49 | enum AVSampleFormat out_fmt, |
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| 50 | enum AVSampleFormat in_fmt, |
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| 51 | int channels) |
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| 52 | { |
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| 53 | int cpu_flags = av_get_cpu_flags(); |
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| 54 | |||
| 55 | ac->simd_f= NULL; |
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| 56 | |||
| 57 | if (have_neon(cpu_flags)) { |
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| 58 | if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_FLTP) |
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| 59 | ac->simd_f = conv_flt_to_s16_neon; |
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| 60 | if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels == 2) |
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| 61 | ac->simd_f = conv_fltp_to_s16_2ch_neon; |
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| 62 | if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels > 2) |
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| 63 | ac->simd_f = conv_fltp_to_s16_nch_neon; |
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| 64 | if(ac->simd_f) |
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| 65 | ac->in_simd_align_mask = ac->out_simd_align_mask = 15; |
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| 66 | } |
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| 67 | } |