FFmpeg: libavcodec/arm/rv34dsp_init_arm.c Source File

FFmpeg
rv34dsp_init_arm.c
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1 /*
2  * Copyright (c) 2011 Janne Grunau <janne-libav@jannau.net>
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 <stdint.h>
22 
23 #include "libavutil/attributes.h"
24 #include "libavcodec/avcodec.h"
25 #include "libavcodec/rv34dsp.h"
26 #include "libavutil/arm/cpu.h"
27 
28 void ff_rv34_inv_transform_noround_neon(int16_t *block);
29 
30 void ff_rv34_inv_transform_noround_dc_neon(int16_t *block);
31 
32 void ff_rv34_idct_add_neon(uint8_t *dst, ptrdiff_t stride, int16_t *block);
33 void ff_rv34_idct_dc_add_neon(uint8_t *dst, ptrdiff_t stride, int dc);
34 
35  av_cold void ff_rv34dsp_init_arm(RV34DSPContext *c)
36 {
37  int cpu_flags = av_get_cpu_flags();
38 
39  if (have_neon(cpu_flags)) {
40  c->rv34_inv_transform = ff_rv34_inv_transform_noround_neon;
41  c->rv34_inv_transform_dc = ff_rv34_inv_transform_noround_dc_neon;
42 
43  c->rv34_idct_add = ff_rv34_idct_add_neon;
44  c->rv34_idct_dc_add = ff_rv34_idct_dc_add_neon;
45  }
46 }

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