FFmpeg
aacpsdsp_init.c
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1 /*
2  * Copyright © 2022 Rémi Denis-Courmont.
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 
23 #include "libavutil/attributes.h"
24 #include "libavutil/cpu.h"
25 #include "libavcodec/aacpsdsp.h"
26 
27 void ff_ps_add_squares_rvv(float *dst, const float (*src)[2], int n);
28 void ff_ps_mul_pair_single_rvv(float (*dst)[2], float (*src0)[2], float *src1,
29  int n);
30 void ff_ps_hybrid_analysis_rvv(float (*out)[2], float (*in)[2],
31  const float (*filter)[8][2], ptrdiff_t, int n);
32 void ff_ps_hybrid_analysis_ileave_rvv(float (*out)[32][2], float L[2][38][64],
33  int i, int len);
34 void ff_ps_hybrid_synthesis_deint_rvv(float out[2][38][64], float (*in)[32][2],
35  int i, int len);
36 
37 void ff_ps_stereo_interpolate_rvv(float (*l)[2], float (*r)[2],
38  float h[2][4], float h_step[2][4], int len);
39 
40 av_cold void ff_psdsp_init_riscv(PSDSPContext *c)
41 {
42 #if HAVE_RVV
43  int flags = av_get_cpu_flags();
44 
45  if (flags & AV_CPU_FLAG_RVV_F32) {
46  c->hybrid_analysis = ff_ps_hybrid_analysis_rvv;
47 
48  if (flags & AV_CPU_FLAG_RVB_ADDR) {
49  c->add_squares = ff_ps_add_squares_rvv;
50  c->mul_pair_single = ff_ps_mul_pair_single_rvv;
51  c->stereo_interpolate[0] = ff_ps_stereo_interpolate_rvv;
52  }
53  }
54 
55  if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
56  c->hybrid_analysis_ileave = ff_ps_hybrid_analysis_ileave_rvv;
57  c->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_rvv;
58  }
59 #endif
60 }
r
const char * r
Definition: vf_curves.c:126
out
FILE * out
Definition: movenc.c:54
src1
const pixel * src1
Definition: h264pred_template.c:421
ff_ps_add_squares_rvv
void ff_ps_add_squares_rvv(float *dst, const float(*src)[2], int n)
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:103
ff_ps_stereo_interpolate_rvv
void ff_ps_stereo_interpolate_rvv(float(*l)[2], float(*r)[2], float h[2][4], float h_step[2][4], int len)
ff_ps_hybrid_analysis_ileave_rvv
void ff_ps_hybrid_analysis_ileave_rvv(float(*out)[32][2], float L[2][38][64], int i, int len)
AV_CPU_FLAG_RVV_F32
#define AV_CPU_FLAG_RVV_F32
Vectors of float's *‍/.
Definition: cpu.h:88
av_cold
#define av_cold
Definition: attributes.h:90
aacpsdsp.h
AV_CPU_FLAG_RVB_ADDR
#define AV_CPU_FLAG_RVB_ADDR
Address bit-manipulations.
Definition: cpu.h:92
ff_psdsp_init_riscv
av_cold void ff_psdsp_init_riscv(PSDSPContext *c)
Definition: aacpsdsp_init.c:40
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
cpu.h
attributes.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
ff_ps_hybrid_analysis_rvv
void ff_ps_hybrid_analysis_rvv(float(*out)[2], float(*in)[2], const float(*filter)[8][2], ptrdiff_t, int n)
AV_CPU_FLAG_RVV_I32
#define AV_CPU_FLAG_RVV_I32
Vectors of 8/16/32-bit int's *‍/.
Definition: cpu.h:87
len
int len
Definition: vorbis_enc_data.h:426
PSDSPContext
Definition: aacpsdsp.h:32
L
#define L(x)
Definition: vpx_arith.h:36
src0
const pixel *const src0
Definition: h264pred_template.c:420
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
h
h
Definition: vp9dsp_template.c:2038
ff_ps_hybrid_synthesis_deint_rvv
void ff_ps_hybrid_synthesis_deint_rvv(float out[2][38][64], float(*in)[32][2], int i, int len)
ff_ps_mul_pair_single_rvv
void ff_ps_mul_pair_single_rvv(float(*dst)[2], float(*src0)[2], float *src1, int n)
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