yading@11: /*
yading@11:  * Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at)
yading@11:  * Copyright (c) 2002 Fabrice Bellard
yading@11:  *
yading@11:  * This file is part of libswresample
yading@11:  *
yading@11:  * libswresample is free software; you can redistribute it and/or modify
yading@11:  * it under the terms of the GNU General Public License as published by
yading@11:  * the Free Software Foundation; either version 2 of the License, or
yading@11:  * (at your option) any later version.
yading@11:  *
yading@11:  * libswresample is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
yading@11:  * GNU General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU General Public License
yading@11:  * along with libswresample; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #include "libavutil/avassert.h"
yading@11: #include "libavutil/channel_layout.h"
yading@11: #include "libavutil/common.h"
yading@11: #include "libavutil/opt.h"
yading@11: #include "swresample.h"
yading@11: 
yading@11: #undef time
yading@11: #include "time.h"
yading@11: #undef fprintf
yading@11: 
yading@11: #define SAMPLES 1000
yading@11: 
yading@11: #define ASSERT_LEVEL 2
yading@11: 
yading@11: static double get(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f){
yading@11:     const uint8_t *p;
yading@11:     if(av_sample_fmt_is_planar(f)){
yading@11:         f= av_get_alt_sample_fmt(f, 0);
yading@11:         p= a[ch];
yading@11:     }else{
yading@11:         p= a[0];
yading@11:         index= ch + index*ch_count;
yading@11:     }
yading@11: 
yading@11:     switch(f){
yading@11:     case AV_SAMPLE_FMT_U8 : return ((const uint8_t*)p)[index]/127.0-1.0;
yading@11:     case AV_SAMPLE_FMT_S16: return ((const int16_t*)p)[index]/32767.0;
yading@11:     case AV_SAMPLE_FMT_S32: return ((const int32_t*)p)[index]/2147483647.0;
yading@11:     case AV_SAMPLE_FMT_FLT: return ((const float  *)p)[index];
yading@11:     case AV_SAMPLE_FMT_DBL: return ((const double *)p)[index];
yading@11:     default: av_assert0(0);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void  set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v){
yading@11:     uint8_t *p;
yading@11:     if(av_sample_fmt_is_planar(f)){
yading@11:         f= av_get_alt_sample_fmt(f, 0);
yading@11:         p= a[ch];
yading@11:     }else{
yading@11:         p= a[0];
yading@11:         index= ch + index*ch_count;
yading@11:     }
yading@11:     switch(f){
yading@11:     case AV_SAMPLE_FMT_U8 : ((uint8_t*)p)[index]= av_clip_uint8 (lrint((v+1.0)*127));     break;
yading@11:     case AV_SAMPLE_FMT_S16: ((int16_t*)p)[index]= av_clip_int16 (lrint(v*32767));         break;
yading@11:     case AV_SAMPLE_FMT_S32: ((int32_t*)p)[index]= av_clipl_int32(llrint(v*2147483647));   break;
yading@11:     case AV_SAMPLE_FMT_FLT: ((float  *)p)[index]= v;                                      break;
yading@11:     case AV_SAMPLE_FMT_DBL: ((double *)p)[index]= v;                                      break;
yading@11:     default: av_assert2(0);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f){
yading@11:     int ch;
yading@11: 
yading@11:     if(av_sample_fmt_is_planar(f)){
yading@11:         f= av_get_alt_sample_fmt(f, 0);
yading@11:         for(ch= 0; ch<ch_count; ch++)
yading@11:             a[ch] += index*av_get_bytes_per_sample(f);
yading@11:     }else{
yading@11:         a[0] += index*ch_count*av_get_bytes_per_sample(f);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static const enum AVSampleFormat formats[] = {
yading@11:     AV_SAMPLE_FMT_S16,
yading@11:     AV_SAMPLE_FMT_FLTP,
yading@11:     AV_SAMPLE_FMT_S16P,
yading@11:     AV_SAMPLE_FMT_FLT,
yading@11:     AV_SAMPLE_FMT_S32P,
yading@11:     AV_SAMPLE_FMT_S32,
yading@11:     AV_SAMPLE_FMT_U8P,
yading@11:     AV_SAMPLE_FMT_U8,
yading@11:     AV_SAMPLE_FMT_DBLP,
yading@11:     AV_SAMPLE_FMT_DBL,
yading@11: };
yading@11: 
yading@11: static const int rates[] = {
yading@11:     8000,
yading@11:     11025,
yading@11:     16000,
yading@11:     22050,
yading@11:     32000,
yading@11:     48000,
yading@11: };
yading@11: 
yading@11: uint64_t layouts[]={
yading@11:     AV_CH_LAYOUT_MONO                    ,
yading@11:     AV_CH_LAYOUT_STEREO                  ,
yading@11:     AV_CH_LAYOUT_2_1                     ,
yading@11:     AV_CH_LAYOUT_SURROUND                ,
yading@11:     AV_CH_LAYOUT_4POINT0                 ,
yading@11:     AV_CH_LAYOUT_2_2                     ,
yading@11:     AV_CH_LAYOUT_QUAD                    ,
yading@11:     AV_CH_LAYOUT_5POINT0                 ,
yading@11:     AV_CH_LAYOUT_5POINT1                 ,
yading@11:     AV_CH_LAYOUT_5POINT0_BACK            ,
yading@11:     AV_CH_LAYOUT_5POINT1_BACK            ,
yading@11:     AV_CH_LAYOUT_7POINT0                 ,
yading@11:     AV_CH_LAYOUT_7POINT1                 ,
yading@11:     AV_CH_LAYOUT_7POINT1_WIDE            ,
yading@11: };
yading@11: 
yading@11: static void setup_array(uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples){
yading@11:     if(av_sample_fmt_is_planar(format)){
yading@11:         int i;
yading@11:         int plane_size= av_get_bytes_per_sample(format&0xFF)*samples;
yading@11:         format&=0xFF;
yading@11:         for(i=0; i<SWR_CH_MAX; i++){
yading@11:             out[i]= in + i*plane_size;
yading@11:         }
yading@11:     }else{
yading@11:         out[0]= in;
yading@11:     }
yading@11: }
yading@11: 
yading@11: static int cmp(const int *a, const int *b){
yading@11:     return *a - *b;
yading@11: }
yading@11: 
yading@11: static void audiogen(void *data, enum AVSampleFormat sample_fmt,
yading@11:                      int channels, int sample_rate, int nb_samples)
yading@11: {
yading@11:     int i, ch, k;
yading@11:     double v, f, a, ampa;
yading@11:     double tabf1[SWR_CH_MAX];
yading@11:     double tabf2[SWR_CH_MAX];
yading@11:     double taba[SWR_CH_MAX];
yading@11:     unsigned static rnd;
yading@11: 
yading@11: #define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v);
yading@11: #define uint_rand(x) (x = x * 1664525 + 1013904223)
yading@11: #define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1)
yading@11:     k = 0;
yading@11: 
yading@11:     /* 1 second of single freq sinus at 1000 Hz */
yading@11:     a = 0;
yading@11:     for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
yading@11:         v = sin(a) * 0.30;
yading@11:         for (ch = 0; ch < channels; ch++)
yading@11:             PUT_SAMPLE
yading@11:         a += M_PI * 1000.0 * 2.0 / sample_rate;
yading@11:     }
yading@11: 
yading@11:     /* 1 second of varing frequency between 100 and 10000 Hz */
yading@11:     a = 0;
yading@11:     for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
yading@11:         v = sin(a) * 0.30;
yading@11:         for (ch = 0; ch < channels; ch++)
yading@11:             PUT_SAMPLE
yading@11:         f  = 100.0 + (((10000.0 - 100.0) * i) / sample_rate);
yading@11:         a += M_PI * f * 2.0 / sample_rate;
yading@11:     }
yading@11: 
yading@11:     /* 0.5 second of low amplitude white noise */
yading@11:     for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
yading@11:         v = dbl_rand(rnd) * 0.30;
yading@11:         for (ch = 0; ch < channels; ch++)
yading@11:             PUT_SAMPLE
yading@11:     }
yading@11: 
yading@11:     /* 0.5 second of high amplitude white noise */
yading@11:     for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
yading@11:         v = dbl_rand(rnd);
yading@11:         for (ch = 0; ch < channels; ch++)
yading@11:             PUT_SAMPLE
yading@11:     }
yading@11: 
yading@11:     /* 1 second of unrelated ramps for each channel */
yading@11:     for (ch = 0; ch < channels; ch++) {
yading@11:         taba[ch]  = 0;
yading@11:         tabf1[ch] = 100 + uint_rand(rnd) % 5000;
yading@11:         tabf2[ch] = 100 + uint_rand(rnd) % 5000;
yading@11:     }
yading@11:     for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
yading@11:         for (ch = 0; ch < channels; ch++) {
yading@11:             v = sin(taba[ch]) * 0.30;
yading@11:             PUT_SAMPLE
yading@11:             f = tabf1[ch] + (((tabf2[ch] - tabf1[ch]) * i) / sample_rate);
yading@11:             taba[ch] += M_PI * f * 2.0 / sample_rate;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     /* 2 seconds of 500 Hz with varying volume */
yading@11:     a    = 0;
yading@11:     ampa = 0;
yading@11:     for (i = 0; i < 2 * sample_rate && k < nb_samples; i++, k++) {
yading@11:         for (ch = 0; ch < channels; ch++) {
yading@11:             double amp = (1.0 + sin(ampa)) * 0.15;
yading@11:             if (ch & 1)
yading@11:                 amp = 0.30 - amp;
yading@11:             v = sin(a) * amp;
yading@11:             PUT_SAMPLE
yading@11:             a    += M_PI * 500.0 * 2.0 / sample_rate;
yading@11:             ampa += M_PI *  2.0 / sample_rate;
yading@11:         }
yading@11:     }
yading@11: }
yading@11: 
yading@11: int main(int argc, char **argv){
yading@11:     int in_sample_rate, out_sample_rate, ch ,i, flush_count;
yading@11:     uint64_t in_ch_layout, out_ch_layout;
yading@11:     enum AVSampleFormat in_sample_fmt, out_sample_fmt;
yading@11:     uint8_t array_in[SAMPLES*8*8];
yading@11:     uint8_t array_mid[SAMPLES*8*8*3];
yading@11:     uint8_t array_out[SAMPLES*8*8+100];
yading@11:     uint8_t *ain[SWR_CH_MAX];
yading@11:     uint8_t *aout[SWR_CH_MAX];
yading@11:     uint8_t *amid[SWR_CH_MAX];
yading@11:     int flush_i=0;
yading@11:     int mode;
yading@11:     int num_tests = 10000;
yading@11:     uint32_t seed = 0;
yading@11:     uint32_t rand_seed = 0;
yading@11:     int remaining_tests[FF_ARRAY_ELEMS(rates) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats)];
yading@11:     int max_tests = FF_ARRAY_ELEMS(remaining_tests);
yading@11:     int test;
yading@11:     int specific_test= -1;
yading@11: 
yading@11:     struct SwrContext * forw_ctx= NULL;
yading@11:     struct SwrContext *backw_ctx= NULL;
yading@11: 
yading@11:     if (argc > 1) {
yading@11:         if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
yading@11:             av_log(NULL, AV_LOG_INFO, "Usage: swresample-test [<num_tests>[ <test>]]  \n"
yading@11:                    "num_tests           Default is %d\n", num_tests);
yading@11:             return 0;
yading@11:         }
yading@11:         num_tests = strtol(argv[1], NULL, 0);
yading@11:         if(num_tests < 0) {
yading@11:             num_tests = -num_tests;
yading@11:             rand_seed = time(0);
yading@11:         }
yading@11:         if(num_tests<= 0 || num_tests>max_tests)
yading@11:             num_tests = max_tests;
yading@11:         if(argc > 2) {
yading@11:             specific_test = strtol(argv[1], NULL, 0);
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     for(i=0; i<max_tests; i++)
yading@11:         remaining_tests[i] = i;
yading@11: 
yading@11:     for(test=0; test<num_tests; test++){
yading@11:         unsigned r;
yading@11:         uint_rand(seed);
yading@11:         r = (seed * (uint64_t)(max_tests - test)) >>32;
yading@11:         FFSWAP(int, remaining_tests[r], remaining_tests[max_tests - test - 1]);
yading@11:     }
yading@11:     qsort(remaining_tests + max_tests - num_tests, num_tests, sizeof(remaining_tests[0]), (void*)cmp);
yading@11:     in_sample_rate=16000;
yading@11:     for(test=0; test<num_tests; test++){
yading@11:         char  in_layout_string[256];
yading@11:         char out_layout_string[256];
yading@11:         unsigned vector= remaining_tests[max_tests - test - 1];
yading@11:         int in_ch_count;
yading@11:         int out_count, mid_count, out_ch_count;
yading@11: 
yading@11:         in_ch_layout    = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
yading@11:         out_ch_layout   = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
yading@11:         in_sample_fmt   = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
yading@11:         out_sample_fmt  = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
yading@11:         out_sample_rate = rates  [vector % FF_ARRAY_ELEMS(rates  )]; vector /= FF_ARRAY_ELEMS(rates);
yading@11:         av_assert0(!vector);
yading@11: 
yading@11:         if(specific_test == 0){
yading@11:             if(out_sample_rate != in_sample_rate || in_ch_layout != out_ch_layout)
yading@11:                 continue;
yading@11:         }
yading@11: 
yading@11:         in_ch_count= av_get_channel_layout_nb_channels(in_ch_layout);
yading@11:         out_ch_count= av_get_channel_layout_nb_channels(out_ch_layout);
yading@11:         av_get_channel_layout_string( in_layout_string, sizeof( in_layout_string),  in_ch_count,  in_ch_layout);
yading@11:         av_get_channel_layout_string(out_layout_string, sizeof(out_layout_string), out_ch_count, out_ch_layout);
yading@11:         fprintf(stderr, "TEST: %s->%s, rate:%5d->%5d, fmt:%s->%s\n",
yading@11:                 in_layout_string, out_layout_string,
yading@11:                 in_sample_rate, out_sample_rate,
yading@11:                 av_get_sample_fmt_name(in_sample_fmt), av_get_sample_fmt_name(out_sample_fmt));
yading@11:         forw_ctx  = swr_alloc_set_opts(forw_ctx, out_ch_layout, out_sample_fmt,  out_sample_rate,
yading@11:                                                     in_ch_layout,  in_sample_fmt,  in_sample_rate,
yading@11:                                         0, 0);
yading@11:         backw_ctx = swr_alloc_set_opts(backw_ctx, in_ch_layout,  in_sample_fmt,             in_sample_rate,
yading@11:                                                     out_ch_layout, out_sample_fmt, out_sample_rate,
yading@11:                                         0, 0);
yading@11:         if(!forw_ctx) {
yading@11:             fprintf(stderr, "Failed to init forw_cts\n");
yading@11:             return 1;
yading@11:         }
yading@11:         if(!backw_ctx) {
yading@11:             fprintf(stderr, "Failed to init backw_ctx\n");
yading@11:             return 1;
yading@11:         }
yading@11:         if(swr_init( forw_ctx) < 0)
yading@11:             fprintf(stderr, "swr_init(->) failed\n");
yading@11:         if(swr_init(backw_ctx) < 0)
yading@11:             fprintf(stderr, "swr_init(<-) failed\n");
yading@11:                 //FIXME test planar
yading@11:         setup_array(ain , array_in ,  in_sample_fmt,   SAMPLES);
yading@11:         setup_array(amid, array_mid, out_sample_fmt, 3*SAMPLES);
yading@11:         setup_array(aout, array_out,  in_sample_fmt           ,   SAMPLES);
yading@11: #if 0
yading@11:         for(ch=0; ch<in_ch_count; ch++){
yading@11:             for(i=0; i<SAMPLES; i++)
yading@11:                 set(ain, ch, i, in_ch_count, in_sample_fmt, sin(i*i*3/SAMPLES));
yading@11:         }
yading@11: #else
yading@11:         audiogen(ain, in_sample_fmt, in_ch_count, SAMPLES/6+1, SAMPLES);
yading@11: #endif
yading@11:         mode = uint_rand(rand_seed) % 3;
yading@11:         if(mode==0 /*|| out_sample_rate == in_sample_rate*/) {
yading@11:             mid_count= swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, SAMPLES);
yading@11:         } else if(mode==1){
yading@11:             mid_count= swr_convert(forw_ctx, amid,         0, (const uint8_t **)ain, SAMPLES);
yading@11:             mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain,       0);
yading@11:         } else {
yading@11:             int tmp_count;
yading@11:             mid_count= swr_convert(forw_ctx, amid,         0, (const uint8_t **)ain,       1);
yading@11:             av_assert0(mid_count==0);
yading@11:             shift(ain,  1, in_ch_count, in_sample_fmt);
yading@11:             mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain,       0);
yading@11:             shift(amid,  mid_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
yading@11:             mid_count+=swr_convert(forw_ctx, amid,         2, (const uint8_t **)ain,       2);
yading@11:             shift(amid,  mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
yading@11:             shift(ain,  2, in_ch_count, in_sample_fmt);
yading@11:             mid_count+=swr_convert(forw_ctx, amid,         1, (const uint8_t **)ain, SAMPLES-3);
yading@11:             shift(amid,  mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
yading@11:             shift(ain, -3, in_ch_count, in_sample_fmt);
yading@11:             mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain,       0);
yading@11:             shift(amid,  -tmp_count, out_ch_count, out_sample_fmt);
yading@11:         }
yading@11:         out_count= swr_convert(backw_ctx,aout, SAMPLES, (const uint8_t **)amid, mid_count);
yading@11: 
yading@11:         for(ch=0; ch<in_ch_count; ch++){
yading@11:             double sse, maxdiff=0;
yading@11:             double sum_a= 0;
yading@11:             double sum_b= 0;
yading@11:             double sum_aa= 0;
yading@11:             double sum_bb= 0;
yading@11:             double sum_ab= 0;
yading@11:             for(i=0; i<out_count; i++){
yading@11:                 double a= get(ain , ch, i, in_ch_count, in_sample_fmt);
yading@11:                 double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
yading@11:                 sum_a += a;
yading@11:                 sum_b += b;
yading@11:                 sum_aa+= a*a;
yading@11:                 sum_bb+= b*b;
yading@11:                 sum_ab+= a*b;
yading@11:                 maxdiff= FFMAX(maxdiff, FFABS(a-b));
yading@11:             }
yading@11:             sse= sum_aa + sum_bb - 2*sum_ab;
yading@11:             if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error
yading@11: 
yading@11:             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);
yading@11:         }
yading@11: 
yading@11:         flush_i++;
yading@11:         flush_i%=21;
yading@11:         flush_count = swr_convert(backw_ctx,aout, flush_i, 0, 0);
yading@11:         shift(aout,  flush_i, in_ch_count, in_sample_fmt);
yading@11:         flush_count+= swr_convert(backw_ctx,aout, SAMPLES-flush_i, 0, 0);
yading@11:         shift(aout, -flush_i, in_ch_count, in_sample_fmt);
yading@11:         if(flush_count){
yading@11:             for(ch=0; ch<in_ch_count; ch++){
yading@11:                 double sse, maxdiff=0;
yading@11:                 double sum_a= 0;
yading@11:                 double sum_b= 0;
yading@11:                 double sum_aa= 0;
yading@11:                 double sum_bb= 0;
yading@11:                 double sum_ab= 0;
yading@11:                 for(i=0; i<flush_count; i++){
yading@11:                     double a= get(ain , ch, i+out_count, in_ch_count, in_sample_fmt);
yading@11:                     double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
yading@11:                     sum_a += a;
yading@11:                     sum_b += b;
yading@11:                     sum_aa+= a*a;
yading@11:                     sum_bb+= b*b;
yading@11:                     sum_ab+= a*b;
yading@11:                     maxdiff= FFMAX(maxdiff, FFABS(a-b));
yading@11:                 }
yading@11:                 sse= sum_aa + sum_bb - 2*sum_ab;
yading@11:                 if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error
yading@11: 
yading@11:                 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);
yading@11:             }
yading@11:         }
yading@11: 
yading@11: 
yading@11:         fprintf(stderr, "\n");
yading@11:     }
yading@11: 
yading@11:     return 0;
yading@11: }