2 * SIMD optimized MPEG-4 Parametric Stereo decoding functions
4 * This file is part of FFmpeg.
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.
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.
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
23 #include "libavutil/x86/cpu.h"
24 #include "libavutil/attributes.h"
25 #include "libavcodec/aacpsdsp.h"
27 void ff_ps_add_squares_sse (float *dst, const float (*src)[2], int n);
28 void ff_ps_add_squares_sse3 (float *dst, const float (*src)[2], int n);
29 void ff_ps_mul_pair_single_sse (float (*dst)[2], float (*src0)[2],
31 void ff_ps_hybrid_analysis_sse (float (*out)[2], float (*in)[2],
32 const float (*filter)[8][2],
34 void ff_ps_hybrid_analysis_sse3(float (*out)[2], float (*in)[2],
35 const float (*filter)[8][2],
37 void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
38 float h[2][4], float h_step[2][4],
41 av_cold void ff_psdsp_init_x86(PSDSPContext *s)
43 int cpu_flags = av_get_cpu_flags();
45 if (EXTERNAL_SSE(cpu_flags)) {
46 s->add_squares = ff_ps_add_squares_sse;
47 s->mul_pair_single = ff_ps_mul_pair_single_sse;
48 s->hybrid_analysis = ff_ps_hybrid_analysis_sse;
50 if (EXTERNAL_SSE3(cpu_flags)) {
51 s->add_squares = ff_ps_add_squares_sse3;
52 s->stereo_interpolate[0] = ff_ps_stereo_interpolate_sse3;
53 s->hybrid_analysis = ff_ps_hybrid_analysis_sse3;