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69 lines
2.3 KiB
69 lines
2.3 KiB
/* |
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* ARM NEON optimised DSP functions for G722 coding |
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* Copyright (c) 2015 Peter Meerwald <pmeerw@pmeerw.net> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/arm/asm.S" |
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function ff_g722_apply_qmf_neon, export=1, align=4 |
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movrel r3, qmf_coeffs |
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vld1.s16 {d2,d3,d4}, [r0]! /* load prev_samples */ |
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vld1.s16 {d16,d17,d18}, [r3,:64]! /* load qmf_coeffs */ |
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vmull.s16 q0, d2, d16 |
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vmlal.s16 q0, d3, d17 |
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vmlal.s16 q0, d4, d18 |
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vld1.s16 {d5,d6,d7}, [r0]! /* load prev_samples */ |
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vld1.s16 {d19,d20,d21}, [r3,:64]! /* load qmf_coeffs */ |
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vmlal.s16 q0, d5, d19 |
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vmlal.s16 q0, d6, d20 |
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vmlal.s16 q0, d7, d21 |
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vadd.s32 d0, d1, d0 |
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vrev64.32 d0, d0 |
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vst1.s32 {d0}, [r1] |
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bx lr |
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endfunc |
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const qmf_coeffs, align=4 |
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.hword 3 |
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.hword -11 |
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.hword -11 |
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.hword 53 |
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.hword 12 |
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.hword -156 |
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.hword 32 |
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.hword 362 |
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.hword -210 |
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.hword -805 |
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.hword 951 |
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.hword 3876 |
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.hword 3876 |
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.hword 951 |
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.hword -805 |
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.hword -210 |
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.hword 362 |
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.hword 32 |
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.hword -156 |
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.hword 12 |
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.hword 53 |
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.hword -11 |
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.hword -11 |
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.hword 3 |
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endconst
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