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54 lines
1.8 KiB
54 lines
1.8 KiB
;****************************************************************************** |
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;* SIMD optimized DSP functions for G722 coding |
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;* |
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;* Copyright (c) 2014 James Almer |
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;* |
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;* This file is part of FFmpeg. |
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;* |
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;* FFmpeg 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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;* FFmpeg 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 FFmpeg; 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/x86/x86util.asm" |
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SECTION_RODATA |
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pw_qmf_coeffs: dw 3, -210, -11, -805, -11, 951, 53, 3876 |
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pw_qmf_coeffs2: dw 12, 3876, -156, 951, 32, -805, 362, -210 |
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pw_qmf_coeffs3: dw 362, 0 , 32, 0, -156, 0, 12, 0 |
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pw_qmf_coeffs4: dw 53, 0, -11, 0, -11, 0, 3, 0 |
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SECTION_TEXT |
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INIT_XMM sse2 |
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cglobal g722_apply_qmf, 2, 2, 5, prev, out |
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movu m0, [prevq+mmsize*0] |
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movu m1, [prevq+mmsize*1] |
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movu m2, [prevq+mmsize*2] |
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punpcklwd m3, m0, m1 |
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punpckhwd m0, m1 |
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punpcklwd m4, m2, m2 |
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punpckhwd m2, m2 |
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pmaddwd m3, [pw_qmf_coeffs ] |
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pmaddwd m0, [pw_qmf_coeffs2] |
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pmaddwd m4, [pw_qmf_coeffs3] |
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pmaddwd m2, [pw_qmf_coeffs4] |
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paddd m0, m3 |
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paddd m2, m4 |
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paddd m0, m2 |
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pshufd m2, m0, q0032 |
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paddd m0, m2 |
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pshufd m0, m0, q0001 |
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movq [outq], m0 |
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RET
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