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alacdsp_init.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/attributes.h"
20 #include "libavutil/x86/cpu.h"
21 #include "libavcodec/alacdsp.h"
22 #include "config.h"
23 
24 void ff_alac_decorrelate_stereo_sse4(int32_t *buffer[2], int nb_samples,
25  int decorr_shift, int decorr_left_weight);
26 void ff_alac_append_extra_bits_stereo_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2],
27  int extra_bits, int channels, int nb_samples);
28 void ff_alac_append_extra_bits_mono_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2],
29  int extra_bits, int channels, int nb_samples);
30 
32 {
33 #if HAVE_X86ASM
35 
36  if (EXTERNAL_SSE2(cpu_flags)) {
39  }
40  if (EXTERNAL_SSE4(cpu_flags)) {
42  }
43 #endif /* HAVE_X86ASM */
44 }
#define extra_bits(eb)
Definition: intrax8.c:159
channels
Definition: aptx.c:30
void ff_alac_append_extra_bits_stereo_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2], int extra_bits, int channels, int nb_samples)
void ff_alac_decorrelate_stereo_sse4(int32_t *buffer[2], int nb_samples, int decorr_shift, int decorr_left_weight)
static atomic_int cpu_flags
Definition: cpu.c:50
Macro definitions for various function/variable attributes.
#define EXTERNAL_SSE4(flags)
Definition: cpu.h:68
#define av_cold
Definition: attributes.h:82
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
int32_t
void(* append_extra_bits[2])(int32_t *buffer[2], int32_t *extra_bits_buffer[2], int extra_bits, int channels, int nb_samples)
Definition: alacdsp.h:27
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:92
av_cold void ff_alacdsp_init_x86(ALACDSPContext *c)
Definition: alacdsp_init.c:31
void ff_alac_append_extra_bits_mono_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2], int extra_bits, int channels, int nb_samples)
static double c[64]
void(* decorrelate_stereo)(int32_t *buffer[2], int nb_samples, int decorr_shift, int decorr_left_weight)
Definition: alacdsp.h:25
GLuint buffer
Definition: opengl_enc.c:102