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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]/127.0-1.0;
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]= av_clip_uint8 (lrint((v+1.0)*127)); break;
case AV_SAMPLE_FMT_S16: ((int16_t*)p)[index]= av_clip_int16 (lrint(v*32767)); break;
case AV_SAMPLE_FMT_S32: ((int32_t*)p)[index]= av_clipl_int32(lrint(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++){
char in_layout_string[256];
char out_layout_string[256];
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);
av_get_channel_layout_string( in_layout_string, sizeof( in_layout_string), in_ch_count, in_ch_layout);
av_get_channel_layout_string(out_layout_string, sizeof(out_layout_string), out_ch_count, out_ch_layout);
fprintf(stderr, "TEST: %s->%s, rate:%5d->%5d, fmt:%s->%s\n",
in_layout_string, out_layout_string,
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, out_sample_fmt, out_sample_rate,
in_ch_layout, in_sample_fmt, 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, out_sample_fmt, 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 , in_sample_fmt, SAMPLES);
setup_array(amid, array_mid, out_sample_fmt, 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, in_sample_fmt, 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, in_sample_fmt);
mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, ain, 0);
shift(amid, mid_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
mid_count+=swr_convert(forw_ctx, amid, 2, ain, 2);
shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
shift(ain, 2, in_ch_count, in_sample_fmt);
mid_count+=swr_convert(forw_ctx, amid, 1, ain, SAMPLES-3);
shift(amid, mid_count-tmp_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
shift(ain, -3, in_ch_count, in_sample_fmt);
mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, ain, 0);
shift(amid, -tmp_count, out_ch_count, out_sample_fmt);
}
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, in_sample_fmt);
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));
}
sse= sum_aa + sum_bb - 2*sum_ab;
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);
}
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, in_sample_fmt);
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));
}
sse= sum_aa + sum_bb - 2*sum_ab;
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);
}
}
fprintf(stderr, "\n");
}
return 0;
}
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