2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
4 * This file is part of Libav.
6 * Libav 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.
11 * Libav 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.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "libavutil/arm/asm.S"
23 function ff_decode_hf_neon, export=1
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
32 1: ldr_post lr, r1, #4
34 add lr, r2, lr, lsl #5
38 vcvt.f32.s32 d7, d7, #4
44 vmul.f32 q0, q0, d7[0]
45 vmul.f32 q1, q1, d7[0]
46 vst1.32 {q0-q1}, [r0,:128]!
52 function ff_dca_lfe_fir0_neon, export=1
54 mov r3, #32 @ decifactor
59 function ff_dca_lfe_fir1_neon, export=1
61 mov r3, #64 @ decifactor
64 add r4, r0, r3, lsl #2 @ out2
65 add r5, r2, #256*4-16 @ cf1
69 vmov.f32 q2, #0.0 @ v0
70 vmov.f32 q3, #0.0 @ v1
73 vld1.32 {q8}, [r2,:128]! @ cf0
74 vld1.32 {q9}, [r5,:128], lr @ cf1
75 vld1.32 {q1}, [r1], lr @ in
83 add r1, r1, r6, lsl #2
88 vst1.32 {d5[0]}, [r0,:32]!
89 vst1.32 {d5[1]}, [r4,:32]!