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ffmpeg/libswresample/swresample_test.c
Michael Niedermayer e6c460e3ea swr-test: Use randomized collision free hypercube corner enumeration to select tests. 
This way the user can specify how many or few tests should run while
still providing good coverage over the whole parameter set.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-26 15:37:41 +02:00

308 lines
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/*
* Copyright (C) 2011 Michael Niedermayer (michaelni@gmx.at)
*
* This file is part of libswresample
*
* libswresample is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* libswresample is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with libswresample; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/audioconvert.h"
#include "libavutil/opt.h"
#include "swresample.h"
#undef fprintf
#define SAMPLES 1000
#define ASSERT_LEVEL 2
static double get(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f){
const uint8_t *p;
if(av_sample_fmt_is_planar(f)){
f= av_get_alt_sample_fmt(f, 0);
p= a[ch];
}else{
p= a[0];
index= ch + index*ch_count;
}
switch(f){
case AV_SAMPLE_FMT_U8 : return ((const uint8_t*)p)[index]/255.0*2-1.0;
case AV_SAMPLE_FMT_S16: return ((const int16_t*)p)[index]/32767.0;
case AV_SAMPLE_FMT_S32: return ((const int32_t*)p)[index]/2147483647.0;
case AV_SAMPLE_FMT_FLT: return ((const float *)p)[index];
case AV_SAMPLE_FMT_DBL: return ((const double *)p)[index];
default: av_assert0(0);
}
}
static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v){
uint8_t *p;
if(av_sample_fmt_is_planar(f)){
f= av_get_alt_sample_fmt(f, 0);
p= a[ch];
}else{
p= a[0];
index= ch + index*ch_count;
}
switch(f){
case AV_SAMPLE_FMT_U8 : ((uint8_t*)p)[index]= (v+1.0)*255.0/2; break;
case AV_SAMPLE_FMT_S16: ((int16_t*)p)[index]= v*32767; break;
case AV_SAMPLE_FMT_S32: ((int32_t*)p)[index]= v*2147483647; break;
case AV_SAMPLE_FMT_FLT: ((float *)p)[index]= v; break;
case AV_SAMPLE_FMT_DBL: ((double *)p)[index]= v; break;
default: av_assert2(0);
}
}
static void shift(uint8_t *a[], int index, int ch_count, enum AVSampleFormat f){
int ch;
if(av_sample_fmt_is_planar(f)){
f= av_get_alt_sample_fmt(f, 0);
for(ch= 0; ch<ch_count; ch++)
a[ch] += index*av_get_bytes_per_sample(f);
}else{
a[0] += index*ch_count*av_get_bytes_per_sample(f);
}
}
static const enum AVSampleFormat formats[] = {
AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_FLTP,
AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_FLT,
AV_SAMPLE_FMT_S32P,
AV_SAMPLE_FMT_S32,
AV_SAMPLE_FMT_U8P,
AV_SAMPLE_FMT_U8,
AV_SAMPLE_FMT_DBLP,
AV_SAMPLE_FMT_DBL,
};
static const int rates[] = {
8000,
11025,
16000,
22050,
32000,
48000,
};
uint64_t layouts[]={
AV_CH_LAYOUT_MONO ,
AV_CH_LAYOUT_STEREO ,
AV_CH_LAYOUT_2_1 ,
AV_CH_LAYOUT_SURROUND ,
AV_CH_LAYOUT_4POINT0 ,
AV_CH_LAYOUT_2_2 ,
AV_CH_LAYOUT_QUAD ,
AV_CH_LAYOUT_5POINT0 ,
AV_CH_LAYOUT_5POINT1 ,
AV_CH_LAYOUT_5POINT0_BACK ,
AV_CH_LAYOUT_5POINT1_BACK ,
AV_CH_LAYOUT_7POINT0 ,
AV_CH_LAYOUT_7POINT1 ,
AV_CH_LAYOUT_7POINT1_WIDE ,
};
static void setup_array(uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples){
if(av_sample_fmt_is_planar(format)){
int i;
int plane_size= av_get_bytes_per_sample(format&0xFF)*samples;
format&=0xFF;
for(i=0; i<SWR_CH_MAX; i++){
out[i]= in + i*plane_size;
}
}else{
out[0]= in;
}
}
static int cmp(const int *a, const int *b){
return *a - *b;
}
int main(int argc, char **argv){
int in_sample_rate, out_sample_rate, ch ,i, in_ch_layout_index, out_ch_layout_index, osr, flush_count;
int in_sample_fmt_index, out_sample_fmt_index;
uint64_t in_ch_layout, out_ch_layout;
enum AVSampleFormat in_sample_fmt, out_sample_fmt;
uint8_t array_in[SAMPLES*8*8];
uint8_t array_mid[SAMPLES*8*8*3];
uint8_t array_out[SAMPLES*8*8+100];
uint8_t *ain[SWR_CH_MAX];
uint8_t *aout[SWR_CH_MAX];
uint8_t *amid[SWR_CH_MAX];
int flush_i=0;
int mode = 0;
int max_tests = FF_ARRAY_ELEMS(rates) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats);
int num_tests = 10000;
uint32_t seed = 0;
int remaining_tests[max_tests];
int test;
struct SwrContext * forw_ctx= NULL;
struct SwrContext *backw_ctx= NULL;
if (argc > 1) {
if (!strcmp(argv[1], "-h")) {
av_log(NULL, AV_LOG_INFO, "Usage: swresample-test [<num_tests>]\n"
"Default is %d\n", num_tests);
return 0;
}
num_tests = strtol(argv[1], NULL, 0);
if(num_tests<= 0 || num_tests>max_tests)
num_tests = max_tests;
}
for(i=0; i<max_tests; i++)
remaining_tests[i] = i;
for(test=0; test<num_tests; test++){
unsigned r;
seed = seed * 1664525 + 1013904223;
r = (seed * (uint64_t)(max_tests - test)) >>32;
FFSWAP(int, remaining_tests[r], remaining_tests[max_tests - test - 1]);
}
qsort(remaining_tests + max_tests - num_tests, num_tests, sizeof(remaining_tests[0]), cmp);
in_sample_rate=16000;
for(test=0; test<num_tests; test++){
unsigned vector= remaining_tests[max_tests - test - 1];
in_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
out_ch_layout = layouts[vector % FF_ARRAY_ELEMS(layouts)]; vector /= FF_ARRAY_ELEMS(layouts);
in_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
out_sample_fmt = formats[vector % FF_ARRAY_ELEMS(formats)]; vector /= FF_ARRAY_ELEMS(formats);
out_sample_rate = rates [vector % FF_ARRAY_ELEMS(rates )]; vector /= FF_ARRAY_ELEMS(rates);
av_assert0(!vector);
int in_ch_count;
in_ch_count= av_get_channel_layout_nb_channels(in_ch_layout);
int out_count, mid_count, out_ch_count;
out_ch_count= av_get_channel_layout_nb_channels(out_ch_layout);
fprintf(stderr, "ch %d->%d, rate:%5d->%5d, fmt:%s->%s\n",
in_ch_count, out_ch_count,
in_sample_rate, out_sample_rate,
av_get_sample_fmt_name(in_sample_fmt), av_get_sample_fmt_name(out_sample_fmt));
forw_ctx = swr_alloc_set_opts(forw_ctx, out_ch_layout, av_get_alt_sample_fmt(out_sample_fmt, 1), out_sample_rate,
in_ch_layout, av_get_alt_sample_fmt( in_sample_fmt, 1), in_sample_rate,
0, 0);
backw_ctx = swr_alloc_set_opts(backw_ctx, in_ch_layout, in_sample_fmt, in_sample_rate,
out_ch_layout, av_get_alt_sample_fmt(out_sample_fmt, 1), out_sample_rate,
0, 0);
if(swr_init( forw_ctx) < 0)
fprintf(stderr, "swr_init(->) failed\n");
if(swr_init(backw_ctx) < 0)
fprintf(stderr, "swr_init(<-) failed\n");
if(!forw_ctx)
fprintf(stderr, "Failed to init forw_cts\n");
if(!backw_ctx)
fprintf(stderr, "Failed to init backw_ctx\n");
//FIXME test planar
setup_array(ain , array_in , av_get_alt_sample_fmt( in_sample_fmt, 1), SAMPLES);
setup_array(amid, array_mid, av_get_alt_sample_fmt(out_sample_fmt, 1), 3*SAMPLES);
setup_array(aout, array_out, in_sample_fmt , SAMPLES);
for(ch=0; ch<in_ch_count; ch++){
for(i=0; i<SAMPLES; i++)
set(ain, ch, i, in_ch_count, av_get_alt_sample_fmt(in_sample_fmt, 1), sin(i*i*3/SAMPLES));
}
mode++;
mode%=3;
if(mode==0 /*|| out_sample_rate == in_sample_rate*/) {
mid_count= swr_convert(forw_ctx, amid, 3*SAMPLES, ain, SAMPLES);
} else if(mode==1){
mid_count= swr_convert(forw_ctx, amid, 0, ain, SAMPLES);
mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, ain, 0);
} else {
int tmp_count;
mid_count= swr_convert(forw_ctx, amid, 0, ain, 1);
av_assert0(mid_count==0);
shift(ain, 1, in_ch_count, av_get_alt_sample_fmt(in_sample_fmt, 1));
mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, ain, 0);
shift(amid, mid_count, out_ch_count, av_get_alt_sample_fmt(out_sample_fmt, 1)); tmp_count = mid_count;
mid_count+=swr_convert(forw_ctx, amid, 2, ain, 2);
shift(amid, mid_count-tmp_count, out_ch_count, av_get_alt_sample_fmt(out_sample_fmt, 1)); tmp_count = mid_count;
shift(ain, 2, in_ch_count, av_get_alt_sample_fmt(in_sample_fmt, 1));
mid_count+=swr_convert(forw_ctx, amid, 1, ain, SAMPLES-3);
shift(amid, mid_count-tmp_count, out_ch_count, av_get_alt_sample_fmt(out_sample_fmt, 1)); tmp_count = mid_count;
shift(ain, -3, in_ch_count, av_get_alt_sample_fmt(in_sample_fmt, 1));
mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, ain, 0);
shift(amid, -tmp_count, out_ch_count, av_get_alt_sample_fmt(out_sample_fmt, 1));
}
out_count= swr_convert(backw_ctx,aout, SAMPLES, amid, mid_count);
for(ch=0; ch<in_ch_count; ch++){
double sse, x, maxdiff=0;
double sum_a= 0;
double sum_b= 0;
double sum_aa= 0;
double sum_bb= 0;
double sum_ab= 0;
for(i=0; i<out_count; i++){
double a= get(ain , ch, i, in_ch_count, av_get_alt_sample_fmt(in_sample_fmt, 1));
double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
sum_a += a;
sum_b += b;
sum_aa+= a*a;
sum_bb+= b*b;
sum_ab+= a*b;
maxdiff= FFMAX(maxdiff, FFABS(a-b));
}
x = sum_ab/sum_bb;
sse= sum_aa + sum_bb*x*x - 2*x*sum_ab;
fprintf(stderr, "[%f %f %f] len:%5d\n", sqrt(sse/out_count), x, maxdiff, out_count);
}
flush_i++;
flush_i%=21;
flush_count = swr_convert(backw_ctx,aout, flush_i, 0, 0);
shift(aout, flush_i, in_ch_count, in_sample_fmt);
flush_count+= swr_convert(backw_ctx,aout, SAMPLES-flush_i, 0, 0);
shift(aout, -flush_i, in_ch_count, in_sample_fmt);
if(flush_count){
for(ch=0; ch<in_ch_count; ch++){
double sse, x, maxdiff=0;
double sum_a= 0;
double sum_b= 0;
double sum_aa= 0;
double sum_bb= 0;
double sum_ab= 0;
for(i=0; i<flush_count; i++){
double a= get(ain , ch, i+out_count, in_ch_count, av_get_alt_sample_fmt(in_sample_fmt, 1));
double b= get(aout, ch, i, in_ch_count, in_sample_fmt);
sum_a += a;
sum_b += b;
sum_aa+= a*a;
sum_bb+= b*b;
sum_ab+= a*b;
maxdiff= FFMAX(maxdiff, FFABS(a-b));
}
x = sum_ab/sum_bb;
sse= sum_aa + sum_bb*x*x - 2*x*sum_ab;
fprintf(stderr, "[%f %f %f] len:%5d F:%3d\n", sqrt(sse/flush_count), x, maxdiff, flush_count, flush_i);
}
}
fprintf(stderr, "\n");
}
return 0;
}
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