mirror of https://github.com/FFmpeg/FFmpeg.git
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Martin Storsjö <martin@martin.st>pull/113/head^2
Peter Meerwald
10 years ago
committed by
Martin Storsjö
parent
73ae0a9d12
commit
702458538d
5 changed files with 112 additions and 0 deletions
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/*
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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 <stdint.h> |
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#include "libavutil/attributes.h" |
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#include "libavutil/arm/cpu.h" |
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#include "libavcodec/g722dsp.h" |
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extern void ff_g722_apply_qmf_neon(const int16_t *prev_samples, int xout[2]); |
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av_cold void ff_g722dsp_init_arm(G722DSPContext *dsp) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (have_neon(cpu_flags)) |
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dsp->apply_qmf = ff_g722_apply_qmf_neon; |
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} |
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/* |
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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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