1/* 2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21#include "libavutil/arm/asm.S" 22 23function ff_decode_hf_neon, export=1 24 push {r4-r5,lr} 25 add r2, r2, r3 26 ldr r3, [sp, #12] 27 ldrd r4, r5, [sp, #16] 28 add r3, r3, r4, lsl #3 29 add r1, r1, r4, lsl #2 30 add r0, r0, r4, lsl #5 31 321: ldr_post lr, r1, #4 33 add r4, r4, #1 34 add lr, r2, lr, lsl #5 35 cmp r4, r5 36 vld1.32 {d7}, [r3]! 37 vld1.8 {d0}, [lr,:64] 38 vcvt.f32.s32 d7, d7, #4 39 vmovl.s8 q1, d0 40 vmovl.s16 q0, d2 41 vmovl.s16 q1, d3 42 vcvt.f32.s32 q0, q0 43 vcvt.f32.s32 q1, q1 44 vmul.f32 q0, q0, d7[0] 45 vmul.f32 q1, q1, d7[0] 46 vst1.32 {q0-q1}, [r0,:128]! 47 bne 1b 48 49 pop {r4-r5,pc} 50endfunc 51 52function ff_dca_lfe_fir0_neon, export=1 53 push {r4-r6,lr} 54 mov r3, #32 @ decifactor 55 mov r6, #256/32 56 b dca_lfe_fir 57endfunc 58 59function ff_dca_lfe_fir1_neon, export=1 60 push {r4-r6,lr} 61 mov r3, #64 @ decifactor 62 mov r6, #256/64 63dca_lfe_fir: 64 add r4, r0, r3, lsl #2 @ out2 65 add r5, r2, #256*4-16 @ cf1 66 sub r1, r1, #12 67 mov lr, #-16 681: 69 vmov.f32 q2, #0.0 @ v0 70 vmov.f32 q3, #0.0 @ v1 71 mov r12, r6 722: 73 vld1.32 {q8}, [r2,:128]! @ cf0 74 vld1.32 {q9}, [r5,:128], lr @ cf1 75 vld1.32 {q1}, [r1], lr @ in 76 subs r12, r12, #4 77 vrev64.32 q10, q8 78 vmla.f32 q3, q1, q9 79 vmla.f32 d4, d2, d21 80 vmla.f32 d5, d3, d20 81 bne 2b 82 83 add r1, r1, r6, lsl #2 84 subs r3, r3, #1 85 vadd.f32 d4, d4, d5 86 vadd.f32 d6, d6, d7 87 vpadd.f32 d5, d4, d6 88 vst1.32 {d5[0]}, [r0,:32]! 89 vst1.32 {d5[1]}, [r4,:32]! 90 bne 1b 91 92 pop {r4-r6,pc} 93endfunc 94