FFmpeg  2.1.1
swresample-test.c
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1 /*
2  * Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at)
3  * Copyright (c) 2002 Fabrice Bellard
4  *
5  * This file is part of libswresample
6  *
7  * libswresample is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * libswresample is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with libswresample; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/avassert.h"
23 #include "libavutil/channel_layout.h"
24 #include "libavutil/common.h"
25 #include "libavutil/opt.h"
26 #include "swresample.h"
27 
28 #undef time
29 #include "time.h"
30 #undef fprintf
31 
32 #define SAMPLES 1000
33 
34 #define ASSERT_LEVEL 2
35 
36 static double get(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f){
37  const uint8_t *p;
39  f= av_get_alt_sample_fmt(f, 0);
40  p= a[ch];
41  }else{
42  p= a[0];
43  index= ch + index*ch_count;
44  }
45 
46  switch(f){
47  case AV_SAMPLE_FMT_U8 : return ((const uint8_t*)p)[index]/127.0-1.0;
48  case AV_SAMPLE_FMT_S16: return ((const int16_t*)p)[index]/32767.0;
49  case AV_SAMPLE_FMT_S32: return ((const int32_t*)p)[index]/2147483647.0;
50  case AV_SAMPLE_FMT_FLT: return ((const float *)p)[index];
51  case AV_SAMPLE_FMT_DBL: return ((const double *)p)[index];
52  default: av_assert0(0);
53  }
54 }
55 
56 static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v){
57  uint8_t *p;
59  f= av_get_alt_sample_fmt(f, 0);
60  p= a[ch];
61  }else{
62  p= a[0];
63  index= ch + index*ch_count;
64  }
65  switch(f){
66  case AV_SAMPLE_FMT_U8 : ((uint8_t*)p)[index]= av_clip_uint8 (lrint((v+1.0)*127)); break;
67  case AV_SAMPLE_FMT_S16: ((int16_t*)p)[index]= av_clip_int16 (lrint(v*32767)); break;
68  case AV_SAMPLE_FMT_S32: ((int32_t*)p)[index]= av_clipl_int32(llrint(v*2147483647)); break;
69  case AV_SAMPLE_FMT_FLT: ((float *)p)[index]= v; break;
70  case AV_SAMPLE_FMT_DBL: ((double *)p)[index]= v; break;
71  default: av_assert2(0);
72  }
73 }
74 
75 static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f){
76  int ch;
77 
79  f= av_get_alt_sample_fmt(f, 0);
80  for(ch= 0; ch<ch_count; ch++)
81  a[ch] += index*av_get_bytes_per_sample(f);
82  }else{
83  a[0] += index*ch_count*av_get_bytes_per_sample(f);
84  }
85 }
86 
87 static const enum AVSampleFormat formats[] = {
98 };
99 
100 static const int rates[] = {
101  8000,
102  11025,
103  16000,
104  22050,
105  32000,
106  48000,
107 };
108 
109 uint64_t layouts[]={
124 };
125 
126 static void setup_array(uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples){
127  if(av_sample_fmt_is_planar(format)){
128  int i;
129  int plane_size= av_get_bytes_per_sample(format&0xFF)*samples;
130  format&=0xFF;
131  for(i=0; i<SWR_CH_MAX; i++){
132  out[i]= in + i*plane_size;
133  }
134  }else{
135  out[0]= in;
136  }
137 }
138 
139 static int cmp(const int *a, const int *b){
140  return *a - *b;
141 }
142 
143 static void audiogen(void *data, enum AVSampleFormat sample_fmt,
144  int channels, int sample_rate, int nb_samples)
145 {
146  int i, ch, k;
147  double v, f, a, ampa;
148  double tabf1[SWR_CH_MAX];
149  double tabf2[SWR_CH_MAX];
150  double taba[SWR_CH_MAX];
151  unsigned static rnd;
152 
153 #define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v);
154 #define uint_rand(x) (x = x * 1664525 + 1013904223)
155 #define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1)
156  k = 0;
157 
158  /* 1 second of single freq sinus at 1000 Hz */
159  a = 0;
160  for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
161  v = sin(a) * 0.30;
162  for (ch = 0; ch < channels; ch++)
163  PUT_SAMPLE
164  a += M_PI * 1000.0 * 2.0 / sample_rate;
165  }
166 
167  /* 1 second of varing frequency between 100 and 10000 Hz */
168  a = 0;
169  for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
170  v = sin(a) * 0.30;
171  for (ch = 0; ch < channels; ch++)
172  PUT_SAMPLE
173  f = 100.0 + (((10000.0 - 100.0) * i) / sample_rate);
174  a += M_PI * f * 2.0 / sample_rate;
175  }
176 
177  /* 0.5 second of low amplitude white noise */
178  for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
179  v = dbl_rand(rnd) * 0.30;
180  for (ch = 0; ch < channels; ch++)
181  PUT_SAMPLE
182  }
183 
184  /* 0.5 second of high amplitude white noise */
185  for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
186  v = dbl_rand(rnd);
187  for (ch = 0; ch < channels; ch++)
188  PUT_SAMPLE
189  }
190 
191  /* 1 second of unrelated ramps for each channel */
192  for (ch = 0; ch < channels; ch++) {
193  taba[ch] = 0;
194  tabf1[ch] = 100 + uint_rand(rnd) % 5000;
195  tabf2[ch] = 100 + uint_rand(rnd) % 5000;
196  }
197  for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
198  for (ch = 0; ch < channels; ch++) {
199  v = sin(taba[ch]) * 0.30;
200  PUT_SAMPLE
201  f = tabf1[ch] + (((tabf2[ch] - tabf1[ch]) * i) / sample_rate);
202  taba[ch] += M_PI * f * 2.0 / sample_rate;
203  }
204  }
205 
206  /* 2 seconds of 500 Hz with varying volume */
207  a = 0;
208  ampa = 0;
209  for (i = 0; i < 2 * sample_rate && k < nb_samples; i++, k++) {
210  for (ch = 0; ch < channels; ch++) {
211  double amp = (1.0 + sin(ampa)) * 0.15;
212  if (ch & 1)
213  amp = 0.30 - amp;
214  v = sin(a) * amp;
215  PUT_SAMPLE
216  a += M_PI * 500.0 * 2.0 / sample_rate;
217  ampa += M_PI * 2.0 / sample_rate;
218  }
219  }
220 }
221 
222 int main(int argc, char **argv){
223  int in_sample_rate, out_sample_rate, ch ,i, flush_count;
224  uint64_t in_ch_layout, out_ch_layout;
225  enum AVSampleFormat in_sample_fmt, out_sample_fmt;
226  uint8_t array_in[SAMPLES*8*8];
227  uint8_t array_mid[SAMPLES*8*8*3];
228  uint8_t array_out[SAMPLES*8*8+100];
229  uint8_t *ain[SWR_CH_MAX];
230  uint8_t *aout[SWR_CH_MAX];
231  uint8_t *amid[SWR_CH_MAX];
232  int flush_i=0;
233  int mode;
234  int num_tests = 10000;
235  uint32_t seed = 0;
236  uint32_t rand_seed = 0;
238  int max_tests = FF_ARRAY_ELEMS(remaining_tests);
239  int test;
240  int specific_test= -1;
241 
242  struct SwrContext * forw_ctx= NULL;
243  struct SwrContext *backw_ctx= NULL;
244 
245  if (argc > 1) {
246  if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
247  av_log(NULL, AV_LOG_INFO, "Usage: swresample-test [<num_tests>[ <test>]] \n"
248  "num_tests Default is %d\n", num_tests);
249  return 0;
250  }
251  num_tests = strtol(argv[1], NULL, 0);
252  if(num_tests < 0) {
253  num_tests = -num_tests;
254  rand_seed = time(0);
255  }
256  if(num_tests<= 0 || num_tests>max_tests)
257  num_tests = max_tests;
258  if(argc > 2) {
259  specific_test = strtol(argv[1], NULL, 0);
260  }
261  }
262 
263  for(i=0; i<max_tests; i++)
264  remaining_tests[i] = i;
265 
266  for(test=0; test<num_tests; test++){
267  unsigned r;
268  uint_rand(seed);
269  r = (seed * (uint64_t)(max_tests - test)) >>32;
270  FFSWAP(int, remaining_tests[r], remaining_tests[max_tests - test - 1]);
271  }
272  qsort(remaining_tests + max_tests - num_tests, num_tests, sizeof(remaining_tests[0]), (void*)cmp);
273  in_sample_rate=16000;
274  for(test=0; test<num_tests; test++){
275  char in_layout_string[256];
276  char out_layout_string[256];
277  unsigned vector= remaining_tests[max_tests - test - 1];
278  int in_ch_count;
279  int out_count, mid_count, out_ch_count;
280 
281  in_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
282  out_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
283  in_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
284  out_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
285  out_sample_rate = rates [vector % FF_ARRAY_ELEMS(rates )]; vector /= FF_ARRAY_ELEMS(rates);
286  av_assert0(!vector);
287 
288  if(specific_test == 0){
289  if(out_sample_rate != in_sample_rate || in_ch_layout != out_ch_layout)
290  continue;
291  }
292 
293  in_ch_count= av_get_channel_layout_nb_channels(in_ch_layout);
294  out_ch_count= av_get_channel_layout_nb_channels(out_ch_layout);
295  av_get_channel_layout_string( in_layout_string, sizeof( in_layout_string), in_ch_count, in_ch_layout);
296  av_get_channel_layout_string(out_layout_string, sizeof(out_layout_string), out_ch_count, out_ch_layout);
297  fprintf(stderr, "TEST: %s->%s, rate:%5d->%5d, fmt:%s->%s\n",
298  in_layout_string, out_layout_string,
299  in_sample_rate, out_sample_rate,
300  av_get_sample_fmt_name(in_sample_fmt), av_get_sample_fmt_name(out_sample_fmt));
301  forw_ctx = swr_alloc_set_opts(forw_ctx, out_ch_layout, out_sample_fmt, out_sample_rate,
302  in_ch_layout, in_sample_fmt, in_sample_rate,
303  0, 0);
304  backw_ctx = swr_alloc_set_opts(backw_ctx, in_ch_layout, in_sample_fmt, in_sample_rate,
305  out_ch_layout, out_sample_fmt, out_sample_rate,
306  0, 0);
307  if(!forw_ctx) {
308  fprintf(stderr, "Failed to init forw_cts\n");
309  return 1;
310  }
311  if(!backw_ctx) {
312  fprintf(stderr, "Failed to init backw_ctx\n");
313  return 1;
314  }
315  if(swr_init( forw_ctx) < 0)
316  fprintf(stderr, "swr_init(->) failed\n");
317  if(swr_init(backw_ctx) < 0)
318  fprintf(stderr, "swr_init(<-) failed\n");
319  //FIXME test planar
320  setup_array(ain , array_in , in_sample_fmt, SAMPLES);
321  setup_array(amid, array_mid, out_sample_fmt, 3*SAMPLES);
322  setup_array(aout, array_out, in_sample_fmt , SAMPLES);
323 #if 0
324  for(ch=0; ch<in_ch_count; ch++){
325  for(i=0; i<SAMPLES; i++)
326  set(ain, ch, i, in_ch_count, in_sample_fmt, sin(i*i*3/SAMPLES));
327  }
328 #else
329  audiogen(ain, in_sample_fmt, in_ch_count, SAMPLES/6+1, SAMPLES);
330 #endif
331  mode = uint_rand(rand_seed) % 3;
332  if(mode==0 /*|| out_sample_rate == in_sample_rate*/) {
333  mid_count= swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, SAMPLES);
334  } else if(mode==1){
335  mid_count= swr_convert(forw_ctx, amid, 0, (const uint8_t **)ain, SAMPLES);
336  mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0);
337  } else {
338  int tmp_count;
339  mid_count= swr_convert(forw_ctx, amid, 0, (const uint8_t **)ain, 1);
340  av_assert0(mid_count==0);
341  shift(ain, 1, in_ch_count, in_sample_fmt);
342  mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0);
343  shift(amid, mid_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
344  mid_count+=swr_convert(forw_ctx, amid, 2, (const uint8_t **)ain, 2);
345  shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
346  shift(ain, 2, in_ch_count, in_sample_fmt);
347  mid_count+=swr_convert(forw_ctx, amid, 1, (const uint8_t **)ain, SAMPLES-3);
348  shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
349  shift(ain, -3, in_ch_count, in_sample_fmt);
350  mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0);
351  shift(amid, -tmp_count, out_ch_count, out_sample_fmt);
352  }
353  out_count= swr_convert(backw_ctx,aout, SAMPLES, (const uint8_t **)amid, mid_count);
354 
355  for(ch=0; ch<in_ch_count; ch++){
356  double sse, maxdiff=0;
357  double sum_a= 0;
358  double sum_b= 0;
359  double sum_aa= 0;
360  double sum_bb= 0;
361  double sum_ab= 0;
362  for(i=0; i<out_count; i++){
363  double a= get(ain , ch, i, in_ch_count, in_sample_fmt);
364  double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
365  sum_a += a;
366  sum_b += b;
367  sum_aa+= a*a;
368  sum_bb+= b*b;
369  sum_ab+= a*b;
370  maxdiff= FFMAX(maxdiff, FFABS(a-b));
371  }
372  sse= sum_aa + sum_bb - 2*sum_ab;
373  if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error
374 
375  fprintf(stderr, "[e:%f c:%f max:%f] len:%5d\n", out_count ? sqrt(sse/out_count) : 0, sum_ab/(sqrt(sum_aa*sum_bb)), maxdiff, out_count);
376  }
377 
378  flush_i++;
379  flush_i%=21;
380  flush_count = swr_convert(backw_ctx,aout, flush_i, 0, 0);
381  shift(aout, flush_i, in_ch_count, in_sample_fmt);
382  flush_count+= swr_convert(backw_ctx,aout, SAMPLES-flush_i, 0, 0);
383  shift(aout, -flush_i, in_ch_count, in_sample_fmt);
384  if(flush_count){
385  for(ch=0; ch<in_ch_count; ch++){
386  double sse, maxdiff=0;
387  double sum_a= 0;
388  double sum_b= 0;
389  double sum_aa= 0;
390  double sum_bb= 0;
391  double sum_ab= 0;
392  for(i=0; i<flush_count; i++){
393  double a= get(ain , ch, i+out_count, in_ch_count, in_sample_fmt);
394  double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
395  sum_a += a;
396  sum_b += b;
397  sum_aa+= a*a;
398  sum_bb+= b*b;
399  sum_ab+= a*b;
400  maxdiff= FFMAX(maxdiff, FFABS(a-b));
401  }
402  sse= sum_aa + sum_bb - 2*sum_ab;
403  if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error
404 
405  fprintf(stderr, "[e:%f c:%f max:%f] len:%5d F:%3d\n", sqrt(sse/flush_count), sum_ab/(sqrt(sum_aa*sum_bb)), maxdiff, flush_count, flush_i);
406  }
407  }
408 
409 
410  fprintf(stderr, "\n");
411  }
412 
413  return 0;
414 }
#define AV_CH_LAYOUT_7POINT1
float v
const char * av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not recognized.
Definition: samplefmt.c:47
static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v)
libswresample public header
#define AV_CH_LAYOUT_SURROUND
struct SwrContext * swr_alloc_set_opts(struct SwrContext *s, int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, int log_offset, void *log_ctx)
Allocate SwrContext if needed and set/reset common parameters.
Definition: swresample.c:187
const char * b
Definition: vf_curves.c:105
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride)
#define AV_CH_LAYOUT_4POINT0
#define AV_CH_LAYOUT_7POINT0
#define AV_CH_LAYOUT_STEREO
#define AV_CH_LAYOUT_5POINT0
enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar)
Return the planar&lt;-&gt;packed alternative form of the given sample format, or AV_SAMPLE_FMT_NONE on erro...
Definition: samplefmt.c:64
unsigned 8 bits
Definition: samplefmt.h:51
#define M_PI
Definition: mathematics.h:46
static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f)
uint8_t
signed 32 bits, planar
Definition: samplefmt.h:59
mode
Definition: f_perms.c:27
const char data[16]
Definition: mxf.c:68
signed 32 bits
Definition: samplefmt.h:53
int swr_convert(struct SwrContext *s, uint8_t **out, int out_count, const uint8_t **in, int in_count)
Convert audio.
static enum AVSampleFormat formats[]
#define FFSWAP(type, a, b)
Definition: avcodec.h:928
signed 16 bits
Definition: samplefmt.h:52
static const int rates[]
#define AV_CH_LAYOUT_5POINT1
static int cmp(const int *a, const int *b)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;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);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
const char * r
Definition: vf_curves.c:103
int av_get_channel_layout_nb_channels(uint64_t channel_layout)
Return the number of channels in the channel layout.
#define AV_CH_LAYOUT_QUAD
unsigned 8 bits, planar
Definition: samplefmt.h:57
#define uint_rand(x)
#define AV_CH_LAYOUT_2_1
#define AV_CH_LAYOUT_2_2
#define FF_ARRAY_ELEMS(a)
Definition: avcodec.h:929
static void test(const char *pattern, const char *host)
Definition: noproxy-test.c:23
#define dbl_rand(x)
int32_t
#define AV_CH_LAYOUT_5POINT1_BACK
AVSampleFormat
Audio Sample Formats.
Definition: samplefmt.h:49
sample_rate
#define AV_LOG_INFO
Standard information.
Definition: avcodec.h:4158
#define FFMAX(a, b)
Definition: avcodec.h:923
static unsigned int seed
Definition: videogen.c:78
#define llrint(x)
Definition: libm.h:112
int index
Definition: gxfenc.c:89
#define AV_CH_LAYOUT_5POINT0_BACK
static av_always_inline av_const long int lrint(double x)
Definition: libm.h:148
enum AVSampleFormat in_sample_fmt
input sample format
enum MovChannelLayoutTag * layouts
Definition: mov_chan.c:434
#define FFABS(a)
Definition: avcodec.h:920
#define AV_CH_LAYOUT_7POINT1_WIDE
#define PUT_SAMPLE
#define SWR_CH_MAX
Maximum number of channels.
Definition: swresample.h:102
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:118
static void setup_array(uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples)
static void audiogen(void *data, enum AVSampleFormat sample_fmt, int channels, int sample_rate, int nb_samples)
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];returnNULL;ctx=av_mallocz(sizeof(*ctx));returnNULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_YASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=0;m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){intplanes=out-> planar out ch_count
Definition: audioconvert.c:56
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;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);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
float, planar
Definition: samplefmt.h:60
signed 16 bits, planar
Definition: samplefmt.h:58
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int main(int argc, char **argv)
Definition: main.c:22
double, planar
Definition: samplefmt.h:61
#define AV_CH_LAYOUT_MONO
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:104
int swr_init(struct SwrContext *s)
Initialize context after user parameters have been set.
Definition: swresample.c:243
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
Return a description of a channel layout.
#define SAMPLES
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:63