| 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 SWR_CH_MAX 32 |
| 35 | |
| 36 | #define ASSERT_LEVEL 2 |
| 37 | |
| 38 | static double get(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f){ |
| 39 | const uint8_t *p; |
| 40 | if(av_sample_fmt_is_planar(f)){ |
| 41 | f= av_get_alt_sample_fmt(f, 0); |
| 42 | p= a[ch]; |
| 43 | }else{ |
| 44 | p= a[0]; |
| 45 | index= ch + index*ch_count; |
| 46 | } |
| 47 | |
| 48 | switch(f){ |
| 49 | case AV_SAMPLE_FMT_U8 : return ((const uint8_t*)p)[index]/127.0-1.0; |
| 50 | case AV_SAMPLE_FMT_S16: return ((const int16_t*)p)[index]/32767.0; |
| 51 | case AV_SAMPLE_FMT_S32: return ((const int32_t*)p)[index]/2147483647.0; |
| 52 | case AV_SAMPLE_FMT_FLT: return ((const float *)p)[index]; |
| 53 | case AV_SAMPLE_FMT_DBL: return ((const double *)p)[index]; |
| 54 | default: av_assert0(0); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v){ |
| 59 | uint8_t *p; |
| 60 | if(av_sample_fmt_is_planar(f)){ |
| 61 | f= av_get_alt_sample_fmt(f, 0); |
| 62 | p= a[ch]; |
| 63 | }else{ |
| 64 | p= a[0]; |
| 65 | index= ch + index*ch_count; |
| 66 | } |
| 67 | switch(f){ |
| 68 | case AV_SAMPLE_FMT_U8 : ((uint8_t*)p)[index]= av_clip_uint8 (lrint((v+1.0)*127)); break; |
| 69 | case AV_SAMPLE_FMT_S16: ((int16_t*)p)[index]= av_clip_int16 (lrint(v*32767)); break; |
| 70 | case AV_SAMPLE_FMT_S32: ((int32_t*)p)[index]= av_clipl_int32(llrint(v*2147483647)); break; |
| 71 | case AV_SAMPLE_FMT_FLT: ((float *)p)[index]= v; break; |
| 72 | case AV_SAMPLE_FMT_DBL: ((double *)p)[index]= v; break; |
| 73 | default: av_assert2(0); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f){ |
| 78 | int ch; |
| 79 | |
| 80 | if(av_sample_fmt_is_planar(f)){ |
| 81 | f= av_get_alt_sample_fmt(f, 0); |
| 82 | for(ch= 0; ch<ch_count; ch++) |
| 83 | a[ch] += index*av_get_bytes_per_sample(f); |
| 84 | }else{ |
| 85 | a[0] += index*ch_count*av_get_bytes_per_sample(f); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | static const enum AVSampleFormat formats[] = { |
| 90 | AV_SAMPLE_FMT_S16, |
| 91 | AV_SAMPLE_FMT_FLTP, |
| 92 | AV_SAMPLE_FMT_S16P, |
| 93 | AV_SAMPLE_FMT_FLT, |
| 94 | AV_SAMPLE_FMT_S32P, |
| 95 | AV_SAMPLE_FMT_S32, |
| 96 | AV_SAMPLE_FMT_U8P, |
| 97 | AV_SAMPLE_FMT_U8, |
| 98 | AV_SAMPLE_FMT_DBLP, |
| 99 | AV_SAMPLE_FMT_DBL, |
| 100 | }; |
| 101 | |
| 102 | static const int rates[] = { |
| 103 | 8000, |
| 104 | 11025, |
| 105 | 16000, |
| 106 | 22050, |
| 107 | 32000, |
| 108 | 48000, |
| 109 | }; |
| 110 | |
| 111 | uint64_t layouts[]={ |
| 112 | AV_CH_LAYOUT_MONO , |
| 113 | AV_CH_LAYOUT_STEREO , |
| 114 | AV_CH_LAYOUT_2_1 , |
| 115 | AV_CH_LAYOUT_SURROUND , |
| 116 | AV_CH_LAYOUT_4POINT0 , |
| 117 | AV_CH_LAYOUT_2_2 , |
| 118 | AV_CH_LAYOUT_QUAD , |
| 119 | AV_CH_LAYOUT_5POINT0 , |
| 120 | AV_CH_LAYOUT_5POINT1 , |
| 121 | AV_CH_LAYOUT_5POINT0_BACK , |
| 122 | AV_CH_LAYOUT_5POINT1_BACK , |
| 123 | AV_CH_LAYOUT_7POINT0 , |
| 124 | AV_CH_LAYOUT_7POINT1 , |
| 125 | AV_CH_LAYOUT_7POINT1_WIDE , |
| 126 | }; |
| 127 | |
| 128 | static void setup_array(uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples){ |
| 129 | if(av_sample_fmt_is_planar(format)){ |
| 130 | int i; |
| 131 | int plane_size= av_get_bytes_per_sample(format&0xFF)*samples; |
| 132 | format&=0xFF; |
| 133 | for(i=0; i<SWR_CH_MAX; i++){ |
| 134 | out[i]= in + i*plane_size; |
| 135 | } |
| 136 | }else{ |
| 137 | out[0]= in; |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | static int cmp(const int *a, const int *b){ |
| 142 | return *a - *b; |
| 143 | } |
| 144 | |
| 145 | static void audiogen(void *data, enum AVSampleFormat sample_fmt, |
| 146 | int channels, int sample_rate, int nb_samples) |
| 147 | { |
| 148 | int i, ch, k; |
| 149 | double v, f, a, ampa; |
| 150 | double tabf1[SWR_CH_MAX]; |
| 151 | double tabf2[SWR_CH_MAX]; |
| 152 | double taba[SWR_CH_MAX]; |
| 153 | unsigned static rnd; |
| 154 | |
| 155 | #define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v); |
| 156 | #define uint_rand(x) (x = x * 1664525 + 1013904223) |
| 157 | #define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1) |
| 158 | k = 0; |
| 159 | |
| 160 | /* 1 second of single freq sinus at 1000 Hz */ |
| 161 | a = 0; |
| 162 | for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) { |
| 163 | v = sin(a) * 0.30; |
| 164 | for (ch = 0; ch < channels; ch++) |
| 165 | PUT_SAMPLE |
| 166 | a += M_PI * 1000.0 * 2.0 / sample_rate; |
| 167 | } |
| 168 | |
| 169 | /* 1 second of varying frequency between 100 and 10000 Hz */ |
| 170 | a = 0; |
| 171 | for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) { |
| 172 | v = sin(a) * 0.30; |
| 173 | for (ch = 0; ch < channels; ch++) |
| 174 | PUT_SAMPLE |
| 175 | f = 100.0 + (((10000.0 - 100.0) * i) / sample_rate); |
| 176 | a += M_PI * f * 2.0 / sample_rate; |
| 177 | } |
| 178 | |
| 179 | /* 0.5 second of low amplitude white noise */ |
| 180 | for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) { |
| 181 | v = dbl_rand(rnd) * 0.30; |
| 182 | for (ch = 0; ch < channels; ch++) |
| 183 | PUT_SAMPLE |
| 184 | } |
| 185 | |
| 186 | /* 0.5 second of high amplitude white noise */ |
| 187 | for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) { |
| 188 | v = dbl_rand(rnd); |
| 189 | for (ch = 0; ch < channels; ch++) |
| 190 | PUT_SAMPLE |
| 191 | } |
| 192 | |
| 193 | /* 1 second of unrelated ramps for each channel */ |
| 194 | for (ch = 0; ch < channels; ch++) { |
| 195 | taba[ch] = 0; |
| 196 | tabf1[ch] = 100 + uint_rand(rnd) % 5000; |
| 197 | tabf2[ch] = 100 + uint_rand(rnd) % 5000; |
| 198 | } |
| 199 | for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) { |
| 200 | for (ch = 0; ch < channels; ch++) { |
| 201 | v = sin(taba[ch]) * 0.30; |
| 202 | PUT_SAMPLE |
| 203 | f = tabf1[ch] + (((tabf2[ch] - tabf1[ch]) * i) / sample_rate); |
| 204 | taba[ch] += M_PI * f * 2.0 / sample_rate; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | /* 2 seconds of 500 Hz with varying volume */ |
| 209 | a = 0; |
| 210 | ampa = 0; |
| 211 | for (i = 0; i < 2 * sample_rate && k < nb_samples; i++, k++) { |
| 212 | for (ch = 0; ch < channels; ch++) { |
| 213 | double amp = (1.0 + sin(ampa)) * 0.15; |
| 214 | if (ch & 1) |
| 215 | amp = 0.30 - amp; |
| 216 | v = sin(a) * amp; |
| 217 | PUT_SAMPLE |
| 218 | a += M_PI * 500.0 * 2.0 / sample_rate; |
| 219 | ampa += M_PI * 2.0 / sample_rate; |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | int main(int argc, char **argv){ |
| 225 | int in_sample_rate, out_sample_rate, ch ,i, flush_count; |
| 226 | uint64_t in_ch_layout, out_ch_layout; |
| 227 | enum AVSampleFormat in_sample_fmt, out_sample_fmt; |
| 228 | uint8_t array_in[SAMPLES*8*8]; |
| 229 | uint8_t array_mid[SAMPLES*8*8*3]; |
| 230 | uint8_t array_out[SAMPLES*8*8+100]; |
| 231 | uint8_t *ain[SWR_CH_MAX]; |
| 232 | uint8_t *aout[SWR_CH_MAX]; |
| 233 | uint8_t *amid[SWR_CH_MAX]; |
| 234 | int flush_i=0; |
| 235 | int mode; |
| 236 | int num_tests = 10000; |
| 237 | uint32_t seed = 0; |
| 238 | uint32_t rand_seed = 0; |
| 239 | int remaining_tests[FF_ARRAY_ELEMS(rates) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats)]; |
| 240 | int max_tests = FF_ARRAY_ELEMS(remaining_tests); |
| 241 | int test; |
| 242 | int specific_test= -1; |
| 243 | |
| 244 | struct SwrContext * forw_ctx= NULL; |
| 245 | struct SwrContext *backw_ctx= NULL; |
| 246 | |
| 247 | if (argc > 1) { |
| 248 | if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) { |
| 249 | av_log(NULL, AV_LOG_INFO, "Usage: swresample-test [<num_tests>[ <test>]] \n" |
| 250 | "num_tests Default is %d\n", num_tests); |
| 251 | return 0; |
| 252 | } |
| 253 | num_tests = strtol(argv[1], NULL, 0); |
| 254 | if(num_tests < 0) { |
| 255 | num_tests = -num_tests; |
| 256 | rand_seed = time(0); |
| 257 | } |
| 258 | if(num_tests<= 0 || num_tests>max_tests) |
| 259 | num_tests = max_tests; |
| 260 | if(argc > 2) { |
| 261 | specific_test = strtol(argv[1], NULL, 0); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | for(i=0; i<max_tests; i++) |
| 266 | remaining_tests[i] = i; |
| 267 | |
| 268 | for(test=0; test<num_tests; test++){ |
| 269 | unsigned r; |
| 270 | uint_rand(seed); |
| 271 | r = (seed * (uint64_t)(max_tests - test)) >>32; |
| 272 | FFSWAP(int, remaining_tests[r], remaining_tests[max_tests - test - 1]); |
| 273 | } |
| 274 | qsort(remaining_tests + max_tests - num_tests, num_tests, sizeof(remaining_tests[0]), (void*)cmp); |
| 275 | in_sample_rate=16000; |
| 276 | for(test=0; test<num_tests; test++){ |
| 277 | char in_layout_string[256]; |
| 278 | char out_layout_string[256]; |
| 279 | unsigned vector= remaining_tests[max_tests - test - 1]; |
| 280 | int in_ch_count; |
| 281 | int out_count, mid_count, out_ch_count; |
| 282 | |
| 283 | in_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts); |
| 284 | out_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts); |
| 285 | in_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats); |
| 286 | out_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats); |
| 287 | out_sample_rate = rates [vector % FF_ARRAY_ELEMS(rates )]; vector /= FF_ARRAY_ELEMS(rates); |
| 288 | av_assert0(!vector); |
| 289 | |
| 290 | if(specific_test == 0){ |
| 291 | if(out_sample_rate != in_sample_rate || in_ch_layout != out_ch_layout) |
| 292 | continue; |
| 293 | } |
| 294 | |
| 295 | in_ch_count= av_get_channel_layout_nb_channels(in_ch_layout); |
| 296 | out_ch_count= av_get_channel_layout_nb_channels(out_ch_layout); |
| 297 | av_get_channel_layout_string( in_layout_string, sizeof( in_layout_string), in_ch_count, in_ch_layout); |
| 298 | av_get_channel_layout_string(out_layout_string, sizeof(out_layout_string), out_ch_count, out_ch_layout); |
| 299 | fprintf(stderr, "TEST: %s->%s, rate:%5d->%5d, fmt:%s->%s\n", |
| 300 | in_layout_string, out_layout_string, |
| 301 | in_sample_rate, out_sample_rate, |
| 302 | av_get_sample_fmt_name(in_sample_fmt), av_get_sample_fmt_name(out_sample_fmt)); |
| 303 | forw_ctx = swr_alloc_set_opts(forw_ctx, out_ch_layout, out_sample_fmt, out_sample_rate, |
| 304 | in_ch_layout, in_sample_fmt, in_sample_rate, |
| 305 | 0, 0); |
| 306 | backw_ctx = swr_alloc_set_opts(backw_ctx, in_ch_layout, in_sample_fmt, in_sample_rate, |
| 307 | out_ch_layout, out_sample_fmt, out_sample_rate, |
| 308 | 0, 0); |
| 309 | if(!forw_ctx) { |
| 310 | fprintf(stderr, "Failed to init forw_cts\n"); |
| 311 | return 1; |
| 312 | } |
| 313 | if(!backw_ctx) { |
| 314 | fprintf(stderr, "Failed to init backw_ctx\n"); |
| 315 | return 1; |
| 316 | } |
| 317 | if(swr_init( forw_ctx) < 0) |
| 318 | fprintf(stderr, "swr_init(->) failed\n"); |
| 319 | if(swr_init(backw_ctx) < 0) |
| 320 | fprintf(stderr, "swr_init(<-) failed\n"); |
| 321 | //FIXME test planar |
| 322 | setup_array(ain , array_in , in_sample_fmt, SAMPLES); |
| 323 | setup_array(amid, array_mid, out_sample_fmt, 3*SAMPLES); |
| 324 | setup_array(aout, array_out, in_sample_fmt , SAMPLES); |
| 325 | #if 0 |
| 326 | for(ch=0; ch<in_ch_count; ch++){ |
| 327 | for(i=0; i<SAMPLES; i++) |
| 328 | set(ain, ch, i, in_ch_count, in_sample_fmt, sin(i*i*3/SAMPLES)); |
| 329 | } |
| 330 | #else |
| 331 | audiogen(ain, in_sample_fmt, in_ch_count, SAMPLES/6+1, SAMPLES); |
| 332 | #endif |
| 333 | mode = uint_rand(rand_seed) % 3; |
| 334 | if(mode==0 /*|| out_sample_rate == in_sample_rate*/) { |
| 335 | mid_count= swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, SAMPLES); |
| 336 | } else if(mode==1){ |
| 337 | mid_count= swr_convert(forw_ctx, amid, 0, (const uint8_t **)ain, SAMPLES); |
| 338 | mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0); |
| 339 | } else { |
| 340 | int tmp_count; |
| 341 | mid_count= swr_convert(forw_ctx, amid, 0, (const uint8_t **)ain, 1); |
| 342 | av_assert0(mid_count==0); |
| 343 | shift(ain, 1, in_ch_count, in_sample_fmt); |
| 344 | mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0); |
| 345 | shift(amid, mid_count, out_ch_count, out_sample_fmt); tmp_count = mid_count; |
| 346 | mid_count+=swr_convert(forw_ctx, amid, 2, (const uint8_t **)ain, 2); |
| 347 | shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count; |
| 348 | shift(ain, 2, in_ch_count, in_sample_fmt); |
| 349 | mid_count+=swr_convert(forw_ctx, amid, 1, (const uint8_t **)ain, SAMPLES-3); |
| 350 | shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count; |
| 351 | shift(ain, -3, in_ch_count, in_sample_fmt); |
| 352 | mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0); |
| 353 | shift(amid, -tmp_count, out_ch_count, out_sample_fmt); |
| 354 | } |
| 355 | out_count= swr_convert(backw_ctx,aout, SAMPLES, (const uint8_t **)amid, mid_count); |
| 356 | |
| 357 | for(ch=0; ch<in_ch_count; ch++){ |
| 358 | double sse, maxdiff=0; |
| 359 | double sum_a= 0; |
| 360 | double sum_b= 0; |
| 361 | double sum_aa= 0; |
| 362 | double sum_bb= 0; |
| 363 | double sum_ab= 0; |
| 364 | for(i=0; i<out_count; i++){ |
| 365 | double a= get(ain , ch, i, in_ch_count, in_sample_fmt); |
| 366 | double b= get(aout, ch, i, in_ch_count, in_sample_fmt); |
| 367 | sum_a += a; |
| 368 | sum_b += b; |
| 369 | sum_aa+= a*a; |
| 370 | sum_bb+= b*b; |
| 371 | sum_ab+= a*b; |
| 372 | maxdiff= FFMAX(maxdiff, FFABS(a-b)); |
| 373 | } |
| 374 | sse= sum_aa + sum_bb - 2*sum_ab; |
| 375 | if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error |
| 376 | |
| 377 | 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); |
| 378 | } |
| 379 | |
| 380 | flush_i++; |
| 381 | flush_i%=21; |
| 382 | flush_count = swr_convert(backw_ctx,aout, flush_i, 0, 0); |
| 383 | shift(aout, flush_i, in_ch_count, in_sample_fmt); |
| 384 | flush_count+= swr_convert(backw_ctx,aout, SAMPLES-flush_i, 0, 0); |
| 385 | shift(aout, -flush_i, in_ch_count, in_sample_fmt); |
| 386 | if(flush_count){ |
| 387 | for(ch=0; ch<in_ch_count; ch++){ |
| 388 | double sse, maxdiff=0; |
| 389 | double sum_a= 0; |
| 390 | double sum_b= 0; |
| 391 | double sum_aa= 0; |
| 392 | double sum_bb= 0; |
| 393 | double sum_ab= 0; |
| 394 | for(i=0; i<flush_count; i++){ |
| 395 | double a= get(ain , ch, i+out_count, in_ch_count, in_sample_fmt); |
| 396 | double b= get(aout, ch, i, in_ch_count, in_sample_fmt); |
| 397 | sum_a += a; |
| 398 | sum_b += b; |
| 399 | sum_aa+= a*a; |
| 400 | sum_bb+= b*b; |
| 401 | sum_ab+= a*b; |
| 402 | maxdiff= FFMAX(maxdiff, FFABS(a-b)); |
| 403 | } |
| 404 | sse= sum_aa + sum_bb - 2*sum_ab; |
| 405 | if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error |
| 406 | |
| 407 | 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); |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | |
| 412 | fprintf(stderr, "\n"); |
| 413 | } |
| 414 | |
| 415 | return 0; |
| 416 | } |