| /* | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #include "libavutil/aarch64/asm.S" | |
| // 0.85..^1 0.85..^2 0.85..^3 0.85..^4 | |
| const tab_st, align=4 | |
| .word 0x3f599a00, 0x3f38f671, 0x3f1d382a, 0x3f05a32f | |
| endconst | |
| const tab_x0, align=4 | |
| .word 0x0, 0x3f599a00, 0x3f38f671, 0x3f1d382a | |
| endconst | |
| const tab_x1, align=4 | |
| .word 0x0, 0x0, 0x3f599a00, 0x3f38f671 | |
| endconst | |
| const tab_x2, align=4 | |
| .word 0x0, 0x0, 0x0, 0x3f599a00 | |
| endconst | |
| function ff_opus_deemphasis_neon, export=1 | |
| movrel x4, tab_st | |
| ld1 {v4.4s}, [x4] | |
| movrel x4, tab_x0 | |
| ld1 {v5.4s}, [x4] | |
| movrel x4, tab_x1 | |
| ld1 {v6.4s}, [x4] | |
| movrel x4, tab_x2 | |
| ld1 {v7.4s}, [x4] | |
| fmul v0.4s, v4.4s, v0.s[0] | |
| 1: ld1 {v1.4s, v2.4s}, [x1], #32 | |
| fmla v0.4s, v5.4s, v1.s[0] | |
| fmul v3.4s, v7.4s, v2.s[2] | |
| fmla v0.4s, v6.4s, v1.s[1] | |
| fmla v3.4s, v6.4s, v2.s[1] | |
| fmla v0.4s, v7.4s, v1.s[2] | |
| fmla v3.4s, v5.4s, v2.s[0] | |
| fadd v1.4s, v1.4s, v0.4s | |
| fadd v2.4s, v2.4s, v3.4s | |
| fmla v2.4s, v4.4s, v1.s[3] | |
| st1 {v1.4s, v2.4s}, [x0], #32 | |
| fmul v0.4s, v4.4s, v2.s[3] | |
| subs w2, w2, #8 | |
| b.gt 1b | |
| mov s0, v2.s[3] | |
| ret | |
| endfunc | |
| function ff_opus_postfilter_neon, export=1 | |
| ld1 {v0.4s}, [x2] | |
| dup v1.4s, v0.s[1] | |
| dup v2.4s, v0.s[2] | |
| dup v0.4s, v0.s[0] | |
| add w1, w1, #2 | |
| sub x1, x0, x1, lsl #2 | |
| ld1 {v3.4s}, [x1] | |
| fmul v3.4s, v3.4s, v2.4s | |
| 1: add x1, x1, #4 | |
| ld1 {v4.4s}, [x1] | |
| add x1, x1, #4 | |
| ld1 {v5.4s}, [x1] | |
| add x1, x1, #4 | |
| ld1 {v6.4s}, [x1] | |
| add x1, x1, #4 | |
| ld1 {v7.4s}, [x1] | |
| fmla v3.4s, v7.4s, v2.4s | |
| fadd v6.4s, v6.4s, v4.4s | |
| ld1 {v4.4s}, [x0] | |
| fmla v4.4s, v5.4s, v0.4s | |
| fmul v6.4s, v6.4s, v1.4s | |
| fadd v6.4s, v6.4s, v3.4s | |
| fadd v4.4s, v4.4s, v6.4s | |
| fmul v3.4s, v7.4s, v2.4s | |
| st1 {v4.4s}, [x0], #16 | |
| subs w3, w3, #4 | |
| b.gt 1b | |
| ret | |
| endfunc |