2 * Copyright (C) 2011 Michael Niedermayer (michaelni@gmx.at)
3 * Copyright (c) 2002 Fabrice Bellard
5 * This file is part of libswresample
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.
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.
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
22 #include "libavutil/avassert.h"
23 #include "libavutil/common.h"
24 #include "libavutil/audioconvert.h"
25 #include "libavutil/opt.h"
26 #include "swresample.h"
31 #define ASSERT_LEVEL 2
33 static double get(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f){
35 if(av_sample_fmt_is_planar(f)){
36 f= av_get_alt_sample_fmt(f, 0);
40 index= ch + index*ch_count;
44 case AV_SAMPLE_FMT_U8 : return ((const uint8_t*)p)[index]/127.0-1.0;
45 case AV_SAMPLE_FMT_S16: return ((const int16_t*)p)[index]/32767.0;
46 case AV_SAMPLE_FMT_S32: return ((const int32_t*)p)[index]/2147483647.0;
47 case AV_SAMPLE_FMT_FLT: return ((const float *)p)[index];
48 case AV_SAMPLE_FMT_DBL: return ((const double *)p)[index];
49 default: av_assert0(0);
53 static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v){
55 if(av_sample_fmt_is_planar(f)){
56 f= av_get_alt_sample_fmt(f, 0);
60 index= ch + index*ch_count;
63 case AV_SAMPLE_FMT_U8 : ((uint8_t*)p)[index]= av_clip_uint8 (lrint((v+1.0)*127)); break;
64 case AV_SAMPLE_FMT_S16: ((int16_t*)p)[index]= av_clip_int16 (lrint(v*32767)); break;
65 case AV_SAMPLE_FMT_S32: ((int32_t*)p)[index]= av_clipl_int32(lrint(v*2147483647)); break;
66 case AV_SAMPLE_FMT_FLT: ((float *)p)[index]= v; break;
67 case AV_SAMPLE_FMT_DBL: ((double *)p)[index]= v; break;
68 default: av_assert2(0);
72 static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f){
75 if(av_sample_fmt_is_planar(f)){
76 f= av_get_alt_sample_fmt(f, 0);
77 for(ch= 0; ch<ch_count; ch++)
78 a[ch] += index*av_get_bytes_per_sample(f);
80 a[0] += index*ch_count*av_get_bytes_per_sample(f);
84 static const enum AVSampleFormat formats[] = {
97 static const int rates[] = {
108 AV_CH_LAYOUT_STEREO ,
110 AV_CH_LAYOUT_SURROUND ,
111 AV_CH_LAYOUT_4POINT0 ,
114 AV_CH_LAYOUT_5POINT0 ,
115 AV_CH_LAYOUT_5POINT1 ,
116 AV_CH_LAYOUT_5POINT0_BACK ,
117 AV_CH_LAYOUT_5POINT1_BACK ,
118 AV_CH_LAYOUT_7POINT0 ,
119 AV_CH_LAYOUT_7POINT1 ,
120 AV_CH_LAYOUT_7POINT1_WIDE ,
123 static void setup_array(uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples){
124 if(av_sample_fmt_is_planar(format)){
126 int plane_size= av_get_bytes_per_sample(format&0xFF)*samples;
128 for(i=0; i<SWR_CH_MAX; i++){
129 out[i]= in + i*plane_size;
136 static int cmp(const int *a, const int *b){
140 static void audiogen(void *data, enum AVSampleFormat sample_fmt,
141 int channels, int sample_rate, int nb_samples)
144 double v, f, a, ampa;
145 double tabf1[SWR_CH_MAX];
146 double tabf2[SWR_CH_MAX];
147 double taba[SWR_CH_MAX];
150 #define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v);
151 #define uint_rand(x) (x = x * 1664525 + 1013904223)
152 #define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1)
155 /* 1 second of single freq sinus at 1000 Hz */
157 for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
159 for (ch = 0; ch < channels; ch++)
161 a += M_PI * 1000.0 * 2.0 / sample_rate;
164 /* 1 second of varing frequency between 100 and 10000 Hz */
166 for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
168 for (ch = 0; ch < channels; ch++)
170 f = 100.0 + (((10000.0 - 100.0) * i) / sample_rate);
171 a += M_PI * f * 2.0 / sample_rate;
174 /* 0.5 second of low amplitude white noise */
175 for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
176 v = dbl_rand(rnd) * 0.30;
177 for (ch = 0; ch < channels; ch++)
181 /* 0.5 second of high amplitude white noise */
182 for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
184 for (ch = 0; ch < channels; ch++)
188 /* 1 second of unrelated ramps for each channel */
189 for (ch = 0; ch < channels; ch++) {
191 tabf1[ch] = 100 + uint_rand(rnd) % 5000;
192 tabf2[ch] = 100 + uint_rand(rnd) % 5000;
194 for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
195 for (ch = 0; ch < channels; ch++) {
196 v = sin(taba[ch]) * 0.30;
198 f = tabf1[ch] + (((tabf2[ch] - tabf1[ch]) * i) / sample_rate);
199 taba[ch] += M_PI * f * 2.0 / sample_rate;
203 /* 2 seconds of 500 Hz with varying volume */
206 for (i = 0; i < 2 * sample_rate && k < nb_samples; i++, k++) {
207 for (ch = 0; ch < channels; ch++) {
208 double amp = (1.0 + sin(ampa)) * 0.15;
213 a += M_PI * 500.0 * 2.0 / sample_rate;
214 ampa += M_PI * 2.0 / sample_rate;
219 int main(int argc, char **argv){
220 int in_sample_rate, out_sample_rate, ch ,i, flush_count;
221 uint64_t in_ch_layout, out_ch_layout;
222 enum AVSampleFormat in_sample_fmt, out_sample_fmt;
223 uint8_t array_in[SAMPLES*8*8];
224 uint8_t array_mid[SAMPLES*8*8*3];
225 uint8_t array_out[SAMPLES*8*8+100];
226 uint8_t *ain[SWR_CH_MAX];
227 uint8_t *aout[SWR_CH_MAX];
228 uint8_t *amid[SWR_CH_MAX];
231 int max_tests = FF_ARRAY_ELEMS(rates) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats);
232 int num_tests = 10000;
234 int remaining_tests[max_tests];
237 struct SwrContext * forw_ctx= NULL;
238 struct SwrContext *backw_ctx= NULL;
241 if (!strcmp(argv[1], "-h")) {
242 av_log(NULL, AV_LOG_INFO, "Usage: swresample-test [<num_tests>]\n"
243 "Default is %d\n", num_tests);
246 num_tests = strtol(argv[1], NULL, 0);
247 if(num_tests<= 0 || num_tests>max_tests)
248 num_tests = max_tests;
251 for(i=0; i<max_tests; i++)
252 remaining_tests[i] = i;
254 for(test=0; test<num_tests; test++){
256 seed = seed * 1664525 + 1013904223;
257 r = (seed * (uint64_t)(max_tests - test)) >>32;
258 FFSWAP(int, remaining_tests[r], remaining_tests[max_tests - test - 1]);
260 qsort(remaining_tests + max_tests - num_tests, num_tests, sizeof(remaining_tests[0]), (void*)cmp);
261 in_sample_rate=16000;
262 for(test=0; test<num_tests; test++){
263 char in_layout_string[256];
264 char out_layout_string[256];
265 unsigned vector= remaining_tests[max_tests - test - 1];
267 int out_count, mid_count, out_ch_count;
269 in_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
270 out_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
271 in_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
272 out_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
273 out_sample_rate = rates [vector % FF_ARRAY_ELEMS(rates )]; vector /= FF_ARRAY_ELEMS(rates);
276 in_ch_count= av_get_channel_layout_nb_channels(in_ch_layout);
277 out_ch_count= av_get_channel_layout_nb_channels(out_ch_layout);
278 av_get_channel_layout_string( in_layout_string, sizeof( in_layout_string), in_ch_count, in_ch_layout);
279 av_get_channel_layout_string(out_layout_string, sizeof(out_layout_string), out_ch_count, out_ch_layout);
280 fprintf(stderr, "TEST: %s->%s, rate:%5d->%5d, fmt:%s->%s\n",
281 in_layout_string, out_layout_string,
282 in_sample_rate, out_sample_rate,
283 av_get_sample_fmt_name(in_sample_fmt), av_get_sample_fmt_name(out_sample_fmt));
284 forw_ctx = swr_alloc_set_opts(forw_ctx, out_ch_layout, out_sample_fmt, out_sample_rate,
285 in_ch_layout, in_sample_fmt, in_sample_rate,
287 backw_ctx = swr_alloc_set_opts(backw_ctx, in_ch_layout, in_sample_fmt, in_sample_rate,
288 out_ch_layout, out_sample_fmt, out_sample_rate,
290 if(swr_init( forw_ctx) < 0)
291 fprintf(stderr, "swr_init(->) failed\n");
292 if(swr_init(backw_ctx) < 0)
293 fprintf(stderr, "swr_init(<-) failed\n");
295 fprintf(stderr, "Failed to init forw_cts\n");
297 fprintf(stderr, "Failed to init backw_ctx\n");
299 setup_array(ain , array_in , in_sample_fmt, SAMPLES);
300 setup_array(amid, array_mid, out_sample_fmt, 3*SAMPLES);
301 setup_array(aout, array_out, in_sample_fmt , SAMPLES);
303 for(ch=0; ch<in_ch_count; ch++){
304 for(i=0; i<SAMPLES; i++)
305 set(ain, ch, i, in_ch_count, in_sample_fmt, sin(i*i*3/SAMPLES));
308 audiogen(ain, in_sample_fmt, in_ch_count, SAMPLES/6+1, SAMPLES);
312 if(mode==0 /*|| out_sample_rate == in_sample_rate*/) {
313 mid_count= swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, SAMPLES);
315 mid_count= swr_convert(forw_ctx, amid, 0, (const uint8_t **)ain, SAMPLES);
316 mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0);
319 mid_count= swr_convert(forw_ctx, amid, 0, (const uint8_t **)ain, 1);
320 av_assert0(mid_count==0);
321 shift(ain, 1, in_ch_count, in_sample_fmt);
322 mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0);
323 shift(amid, mid_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
324 mid_count+=swr_convert(forw_ctx, amid, 2, (const uint8_t **)ain, 2);
325 shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
326 shift(ain, 2, in_ch_count, in_sample_fmt);
327 mid_count+=swr_convert(forw_ctx, amid, 1, (const uint8_t **)ain, SAMPLES-3);
328 shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
329 shift(ain, -3, in_ch_count, in_sample_fmt);
330 mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, 0);
331 shift(amid, -tmp_count, out_ch_count, out_sample_fmt);
333 out_count= swr_convert(backw_ctx,aout, SAMPLES, (const uint8_t **)amid, mid_count);
335 for(ch=0; ch<in_ch_count; ch++){
336 double sse, maxdiff=0;
342 for(i=0; i<out_count; i++){
343 double a= get(ain , ch, i, in_ch_count, in_sample_fmt);
344 double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
350 maxdiff= FFMAX(maxdiff, FFABS(a-b));
352 sse= sum_aa + sum_bb - 2*sum_ab;
354 fprintf(stderr, "[e:%f c:%f max:%f] len:%5d\n", sqrt(sse/out_count), sum_ab/(sqrt(sum_aa*sum_bb)), maxdiff, out_count);
359 flush_count = swr_convert(backw_ctx,aout, flush_i, 0, 0);
360 shift(aout, flush_i, in_ch_count, in_sample_fmt);
361 flush_count+= swr_convert(backw_ctx,aout, SAMPLES-flush_i, 0, 0);
362 shift(aout, -flush_i, in_ch_count, in_sample_fmt);
364 for(ch=0; ch<in_ch_count; ch++){
365 double sse, maxdiff=0;
371 for(i=0; i<flush_count; i++){
372 double a= get(ain , ch, i+out_count, in_ch_count, in_sample_fmt);
373 double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
379 maxdiff= FFMAX(maxdiff, FFABS(a-b));
381 sse= sum_aa + sum_bb - 2*sum_ab;
383 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);
388 fprintf(stderr, "\n");