Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / arm / ac3dsp_arm.S
CommitLineData
2ba45a60
DM
1/*
2 * Copyright (c) 2011 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_ac3_update_bap_counts_arm, export=1
24 push {lr}
25 ldrb lr, [r1], #1
261:
27 lsl r3, lr, #1
28 ldrh r12, [r0, r3]
29 subs r2, r2, #1
30 it gt
31 ldrbgt lr, [r1], #1
32 add r12, r12, #1
33 strh r12, [r0, r3]
34 bgt 1b
35 pop {pc}
36endfunc