FFmpeg: libavcodec/x86/h263dsp_init.c Source File

FFmpeg
h263dsp_init.c
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1 /*
2  * Copyright (c) 2013 Diego Biurrun <diego@biurrun.de>
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 "libavutil/cpu.h"
25 #include "libavutil/x86/cpu.h"
26 #include "libavcodec/h263dsp.h"
27 
28 void ff_h263_h_loop_filter_mmx(uint8_t *src, int stride, int qscale);
29 void ff_h263_v_loop_filter_mmx(uint8_t *src, int stride, int qscale);
30 
31  av_cold void ff_h263dsp_init_x86(H263DSPContext *c)
32 {
33  int cpu_flags = av_get_cpu_flags();
34 
35  if (EXTERNAL_MMX(cpu_flags)) {
36  c->h263_h_loop_filter = ff_h263_h_loop_filter_mmx;
37  c->h263_v_loop_filter = ff_h263_v_loop_filter_mmx;
38  }
39 }
EXTERNAL_MMX
#define EXTERNAL_MMX(flags)
Definition: cpu.h:56
ff_h263_v_loop_filter_mmx
void ff_h263_v_loop_filter_mmx(uint8_t *src, int stride, int qscale)
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
src
#define src
Definition: vp8dsp.c:254
attributes.h
Macro definitions for various function/variable attributes.
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:93
ff_h263_h_loop_filter_mmx
void ff_h263_h_loop_filter_mmx(uint8_t *src, int stride, int qscale)
stride
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
ff_h263dsp_init_x86
av_cold void ff_h263dsp_init_x86(H263DSPContext *c)
Definition: h263dsp_init.c:31
H263DSPContext::h263_v_loop_filter
void(* h263_v_loop_filter)(uint8_t *src, int stride, int qscale)
Definition: h263dsp.h:28
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
H263DSPContext::h263_h_loop_filter
void(* h263_h_loop_filter)(uint8_t *src, int stride, int qscale)
Definition: h263dsp.h:27

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