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 36static double get(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f){ 37 const uint8_t *p; 38 if(av_sample_fmt_is_planar(f)){ 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 56static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v){ 57 uint8_t *p; 58 if(av_sample_fmt_is_planar(f)){ 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 75static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f){ 76 int ch; 77 78 if(av_sample_fmt_is_planar(f)){ 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 87static const enum AVSampleFormat formats[] = { 88 AV_SAMPLE_FMT_S16, 89 AV_SAMPLE_FMT_FLTP, 90 AV_SAMPLE_FMT_S16P, 91 AV_SAMPLE_FMT_FLT, 92 AV_SAMPLE_FMT_S32P, 93 AV_SAMPLE_FMT_S32, 94 AV_SAMPLE_FMT_U8P, 95 AV_SAMPLE_FMT_U8, 96 AV_SAMPLE_FMT_DBLP, 97 AV_SAMPLE_FMT_DBL, 98}; 99 100static const int rates[] = { 101 8000, 102 11025, 103 16000, 104 22050, 105 32000, 106 48000, 107}; 108 109uint64_t layouts[]={ 110 AV_CH_LAYOUT_MONO , 111 AV_CH_LAYOUT_STEREO , 112 AV_CH_LAYOUT_2_1 , 113 AV_CH_LAYOUT_SURROUND , 114 AV_CH_LAYOUT_4POINT0 , 115 AV_CH_LAYOUT_2_2 , 116 AV_CH_LAYOUT_QUAD , 117 AV_CH_LAYOUT_5POINT0 , 118 AV_CH_LAYOUT_5POINT1 , 119 AV_CH_LAYOUT_5POINT0_BACK , 120 AV_CH_LAYOUT_5POINT1_BACK , 121 AV_CH_LAYOUT_7POINT0 , 122 AV_CH_LAYOUT_7POINT1 , 123 AV_CH_LAYOUT_7POINT1_WIDE , 124}; 125 126static 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 139static int cmp(const int *a, const int *b){ 140 return *a - *b; 141} 142 143static 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 varying 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 222int 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; 237 int remaining_tests[FF_ARRAY_ELEMS(rates) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats)]; 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} 415