Libav
mdct_init.c
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * Libav is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "config.h"
20 
21 #include "libavutil/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/x86/cpu.h"
24 
25 #include "mdct.h"
26 
28 {
29  int cpu_flags = av_get_cpu_flags();
30 
31 #if ARCH_X86_32
32  if (EXTERNAL_AMD3DNOW(cpu_flags)) {
35  }
36 
37  if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) {
40  }
41 #endif /* ARCH_X86_32 */
42 
43  if (EXTERNAL_SSE(cpu_flags)) {
46  }
47 
48  if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) {
50  }
51 }
void ff_imdct_half_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_imdct_calc_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input)
#define EXTERNAL_SSE(flags)
Definition: cpu.h:57
void ff_imdct_calc_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input)
Macro definitions for various function/variable attributes.
void ff_imdct_half_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input)
#define av_cold
Definition: attributes.h:66
av_cold void ff_mdct_init_x86(FFTContext *s)
Definition: mdct_init.c:27
#define EXTERNAL_AVX_FAST(flags)
Definition: cpu.h:70
void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input)
void(* imdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
Definition: fft.h:92
#define EXTERNAL_AMD3DNOWEXT(flags)
Definition: cpu.h:54
Definition: fft.h:73
int nbits
Definition: fft.h:74
void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:47
void(* imdct_half)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
Definition: fft.h:93
void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
#define EXTERNAL_AMD3DNOW(flags)
Definition: cpu.h:53