FFmpeg  4.4
fmtconvert.c
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1 /*
2  * Copyright (c) 2015 Janne Grunau
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (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
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #include <math.h>
22 #include <stdint.h>
23 #include <string.h>
24 
25 #include "libavutil/internal.h"
26 #include "libavutil/common.h"
27 #include "libavutil/mem_internal.h"
28 
29 #include "libavcodec/fmtconvert.h"
30 
31 #include "checkasm.h"
32 
33 #define BUF_SIZE 1024
34 
35 #define randomize_input(len) \
36  do { \
37  int k; \
38  for (k = 0; k < len; k++) { \
39  in[k] = rnd() - INT32_MAX; \
40  } \
41  for ( ; k < BUF_SIZE; k++) { \
42  in[k] = INT32_MAX; \
43  } \
44  } while (0)
45 
47 {
49  LOCAL_ALIGNED(32, float, dst0, [BUF_SIZE]);
50  LOCAL_ALIGNED(32, float, dst1, [BUF_SIZE]);
52  float scale_arr[128];
53  int length[] = {8, 16, 24, 56, 72, 128, 512, 520, 656, 768, 992};
54  int i, j;
55 
56  for (i = 0; i < FF_ARRAY_ELEMS(scale_arr); i++)
57  scale_arr[i] = (FF_ARRAY_ELEMS(scale_arr) - FF_ARRAY_ELEMS(scale_arr) / 2) / 13;
58 
60 
61  memset(dst0, 0, sizeof(*dst0) * BUF_SIZE);
62  memset(dst1, 0, sizeof(*dst1) * BUF_SIZE);
63 
64  if (check_func(c.int32_to_float_fmul_scalar, "int32_to_float_fmul_scalar")) {
65  declare_func(void, float *, const int32_t *, float, int);
66 
67  for (i = 0; i < FF_ARRAY_ELEMS(scale_arr); i++) {
68  for (j = 0; j < FF_ARRAY_ELEMS(length); j++) {
69 
70  randomize_input(length[j]);
71 
72  call_ref(dst0, in, scale_arr[i], length[j]);
73  call_new(dst1, in, scale_arr[i], length[j]);
74 
75  if (!float_near_ulp_array(dst0, dst1, 3, length[j])) {
76  fail();
77  break;
78  }
79 
80  bench_new(dst1, in, scale_arr[i], length[j]);
81  }
82  }
83  }
84  if (check_func(c.int32_to_float_fmul_array8, "int32_to_float_fmul_array8")) {
85  declare_func(void, FmtConvertContext *, float *, const int32_t *,
86  const float *, int);
87 
88  for (i = 0; i < 4; i++) {
89  for (j = 0; j < FF_ARRAY_ELEMS(length); j++) {
90 
91  randomize_input(length[j]);
92 
93  call_ref(&c, dst0, in, scale_arr, length[j]);
94  call_new(&c, dst1, in, scale_arr, length[j]);
95 
96  if (!float_near_ulp_array(dst0, dst1, 3, length[j])) {
97  fail();
98  fprintf(stderr, "int32_to_float_fmul_array8: len: %d\n", length[j]);
99  break;
100  }
101 
102  bench_new(&c, dst1, in, scale_arr, length[j]);
103  }
104  }
105  }
106  report("fmtconvert");
107 }
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
int32_t
int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp, unsigned len)
Definition: checkasm.c:315
#define call_new(...)
Definition: checkasm.h:211
#define check_func(func,...)
Definition: checkasm.h:124
#define call_ref(...)
Definition: checkasm.h:139
#define fail()
Definition: checkasm.h:133
#define declare_func(ret,...)
Definition: checkasm.h:128
#define report
Definition: checkasm.h:136
#define bench_new(...)
Definition: checkasm.h:271
common internal and external API header
#define NULL
Definition: coverity.c:32
int i
Definition: input.c:407
av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx)
Definition: fmtconvert.c:52
common internal API header
#define LOCAL_ALIGNED(a, t, v,...)
Definition: mem_internal.h:113
#define FF_ARRAY_ELEMS(a)
#define randomize_input(len)
Definition: fmtconvert.c:35
#define BUF_SIZE
Definition: fmtconvert.c:33
void checkasm_check_fmtconvert(void)
Definition: fmtconvert.c:46
static double c[64]