1 /*
2 * Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
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 "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/vorbisdsp.h"
26
27 void ff_vorbis_inverse_coupling_3dnow(float *mag, float *ang,
28 intptr_t blocksize);
29 void ff_vorbis_inverse_coupling_sse(float *mag, float *ang,
30 intptr_t blocksize);
31
ff_vorbisdsp_init_x86(VorbisDSPContext * dsp)32 av_cold void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp)
33 {
34 int cpu_flags = av_get_cpu_flags();
35
36 #if ARCH_X86_32
37 if (EXTERNAL_AMD3DNOW(cpu_flags))
38 dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_3dnow;
39 #endif /* ARCH_X86_32 */
40 if (EXTERNAL_SSE(cpu_flags))
41 dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_sse;
42 }
43