diff options
Diffstat (limited to 'ffmpeg/libavcodec/arm/ac3dsp_neon.S')
| -rw-r--r-- | ffmpeg/libavcodec/arm/ac3dsp_neon.S | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/ffmpeg/libavcodec/arm/ac3dsp_neon.S b/ffmpeg/libavcodec/arm/ac3dsp_neon.S index 42f35e3..89d0ae8 100644 --- a/ffmpeg/libavcodec/arm/ac3dsp_neon.S +++ b/ffmpeg/libavcodec/arm/ac3dsp_neon.S @@ -1,20 +1,20 @@ /* * Copyright (c) 2011 Mans Rullgard <mans@mansr.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -109,6 +109,29 @@ function ff_ac3_extract_exponents_neon, export=1 bx lr endfunc +function ff_apply_window_int16_neon, export=1 + push {r4,lr} + add r4, r1, r3, lsl #1 + add lr, r0, r3, lsl #1 + sub r4, r4, #16 + sub lr, lr, #16 + mov r12, #-16 +1: + vld1.16 {q0}, [r1,:128]! + vld1.16 {q2}, [r2,:128]! + vld1.16 {q1}, [r4,:128], r12 + vrev64.16 q3, q2 + vqrdmulh.s16 q0, q0, q2 + vqrdmulh.s16 d2, d2, d7 + vqrdmulh.s16 d3, d3, d6 + vst1.16 {q0}, [r0,:128]! + vst1.16 {q1}, [lr,:128], r12 + subs r3, r3, #16 + bgt 1b + + pop {r4,pc} +endfunc + function ff_ac3_sum_square_butterfly_int32_neon, export=1 vmov.i64 q0, #0 vmov.i64 q1, #0 |