From 8992cb1d0d07edc33d274f6d7924ecdf6f83d994 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:57:22 +0100 Subject: making act segmenter --- ffmpeg/libavcodec/arm/ac3dsp_arm.S | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 ffmpeg/libavcodec/arm/ac3dsp_arm.S (limited to 'ffmpeg/libavcodec/arm/ac3dsp_arm.S') diff --git a/ffmpeg/libavcodec/arm/ac3dsp_arm.S b/ffmpeg/libavcodec/arm/ac3dsp_arm.S new file mode 100644 index 0000000..ed8eb37 --- /dev/null +++ b/ffmpeg/libavcodec/arm/ac3dsp_arm.S @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2011 Mans Rullgard + * + * This file is part of Libav. + * + * Libav 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, + * 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 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/arm/asm.S" + +function ff_ac3_update_bap_counts_arm, export=1 + push {lr} + ldrb lr, [r1], #1 +1: + lsl r3, lr, #1 + ldrh r12, [r0, r3] + subs r2, r2, #1 + it gt + ldrbgt lr, [r1], #1 + add r12, r12, #1 + strh r12, [r0, r3] + bgt 1b + pop {pc} +endfunc -- cgit v1.2.3