Merge commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196'

* commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196':
  tests: Move all test programs to a subdirectory

Merged-by: Clément Bœsch <clement@stupeflix.com>

2 files changed, 423 insertions, 0 deletions

diff --git a/libswresample/tests/.gitignore b/libswresample/tests/.gitignore
new file mode 100644
index 0000000000..2dc986bd0e
--- /dev/null
+++ b/libswresample/tests/.gitignore
@@ -0,0 +1 @@
+/swresample
diff --git a/libswresample/tests/swresample.c b/libswresample/tests/swresample.c
new file mode 100644
index 0000000000..9ba7735d16
--- /dev/null
+++ b/libswresample/tests/swresample.c
@@ -0,0 +1,422 @@
+/*
+ * Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at)
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * 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/channel_layout.h"
+#include "libavutil/common.h"
+#include "libavutil/opt.h"
+
+#include "libswresample/swresample.h"
+
+#undef time
+#include "time.h"
+#undef fprintf
+
+#define SAMPLES 1000
+
+#define SWR_CH_MAX 32
+
+#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(llrint(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,
+};
+
+static const 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 void *a, const void *b){
+    return *(const int *)a - *(const int *)b;
+}
+
+static void audiogen(void *data, enum AVSampleFormat sample_fmt,
+                     int channels, int sample_rate, int nb_samples)
+{
+    int i, ch, k;
+    double v, f, a, ampa;
+    double tabf1[SWR_CH_MAX];
+    double tabf2[SWR_CH_MAX];
+    double taba[SWR_CH_MAX];
+    unsigned static rnd;
+
+#define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v);
+#define uint_rand(x) ((x) = (x) * 1664525 + 1013904223)
+#define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1)
+    k = 0;
+
+    /* 1 second of single freq sinus at 1000 Hz */
+    a = 0;
+    for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
+        v = sin(a) * 0.30;
+        for (ch = 0; ch < channels; ch++)
+            PUT_SAMPLE
+        a += M_PI * 1000.0 * 2.0 / sample_rate;
+    }
+
+    /* 1 second of varying frequency between 100 and 10000 Hz */
+    a = 0;
+    for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
+        v = sin(a) * 0.30;
+        for (ch = 0; ch < channels; ch++)
+            PUT_SAMPLE
+        f  = 100.0 + (((10000.0 - 100.0) * i) / sample_rate);
+        a += M_PI * f * 2.0 / sample_rate;
+    }
+
+    /* 0.5 second of low amplitude white noise */
+    for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
+        v = dbl_rand(rnd) * 0.30;
+        for (ch = 0; ch < channels; ch++)
+            PUT_SAMPLE
+    }
+
+    /* 0.5 second of high amplitude white noise */
+    for (i = 0; i < sample_rate / 2 && k < nb_samples; i++, k++) {
+        v = dbl_rand(rnd);
+        for (ch = 0; ch < channels; ch++)
+            PUT_SAMPLE
+    }
+
+    /* 1 second of unrelated ramps for each channel */
+    for (ch = 0; ch < channels; ch++) {
+        taba[ch]  = 0;
+        tabf1[ch] = 100 + uint_rand(rnd) % 5000;
+        tabf2[ch] = 100 + uint_rand(rnd) % 5000;
+    }
+    for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
+        for (ch = 0; ch < channels; ch++) {
+            v = sin(taba[ch]) * 0.30;
+            PUT_SAMPLE
+            f = tabf1[ch] + (((tabf2[ch] - tabf1[ch]) * i) / sample_rate);
+            taba[ch] += M_PI * f * 2.0 / sample_rate;
+        }
+    }
+
+    /* 2 seconds of 500 Hz with varying volume */
+    a    = 0;
+    ampa = 0;
+    for (i = 0; i < 2 * sample_rate && k < nb_samples; i++, k++) {
+        for (ch = 0; ch < channels; ch++) {
+            double amp = (1.0 + sin(ampa)) * 0.15;
+            if (ch & 1)
+                amp = 0.30 - amp;
+            v = sin(a) * amp;
+            PUT_SAMPLE
+            a    += M_PI * 500.0 * 2.0 / sample_rate;
+            ampa += M_PI *  2.0 / sample_rate;
+        }
+    }
+}
+
+int main(int argc, char **argv){
+    int in_sample_rate, out_sample_rate, ch ,i, flush_count;
+    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;
+    int num_tests = 10000;
+    uint32_t seed = 0;
+    uint32_t rand_seed = 0;
+    int remaining_tests[FF_ARRAY_ELEMS(rates) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats) * FF_ARRAY_ELEMS(layouts) * FF_ARRAY_ELEMS(formats)];
+    int max_tests = FF_ARRAY_ELEMS(remaining_tests);
+    int test;
+    int specific_test= -1;
+
+    struct SwrContext * forw_ctx= NULL;
+    struct SwrContext *backw_ctx= NULL;
+
+    if (argc > 1) {
+        if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
+            av_log(NULL, AV_LOG_INFO, "Usage: swresample-test [<num_tests>[ <test>]]  \n"
+                   "num_tests           Default is %d\n", num_tests);
+            return 0;
+        }
+        num_tests = strtol(argv[1], NULL, 0);
+        if(num_tests < 0) {
+            num_tests = -num_tests;
+            rand_seed = time(0);
+        }
+        if(num_tests<= 0 || num_tests>max_tests)
+            num_tests = max_tests;
+        if(argc > 2) {
+            specific_test = strtol(argv[1], NULL, 0);
+        }
+    }
+
+    for(i=0; i<max_tests; i++)
+        remaining_tests[i] = i;
+
+    for(test=0; test<num_tests; test++){
+        unsigned r;
+        uint_rand(seed);
+        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];
+        int in_ch_count;
+        int out_count, mid_count, out_ch_count;
+
+        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);
+
+        if(specific_test == 0){
+            if(out_sample_rate != in_sample_rate || in_ch_layout != out_ch_layout)
+                continue;
+        }
+
+        in_ch_count= av_get_channel_layout_nb_channels(in_ch_layout);
+        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(!forw_ctx) {
+            fprintf(stderr, "Failed to init forw_cts\n");
+            return 1;
+        }
+        if(!backw_ctx) {
+            fprintf(stderr, "Failed to init backw_ctx\n");
+            return 1;
+        }
+        if (uint_rand(rand_seed) % 3 == 0)
+            av_opt_set_int(forw_ctx, "ich", 0, 0);
+        if (uint_rand(rand_seed) % 3 == 0)
+            av_opt_set_int(forw_ctx, "och", 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");
+                //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);
+#if 0
+        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));
+        }
+#else
+        audiogen(ain, in_sample_fmt, in_ch_count, SAMPLES/6+1, SAMPLES);
+#endif
+        mode = uint_rand(rand_seed) % 3;
+        if(mode==0 /*|| out_sample_rate == in_sample_rate*/) {
+            mid_count= swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain, SAMPLES);
+        } else if(mode==1){
+            mid_count= swr_convert(forw_ctx, amid,         0, (const uint8_t **)ain, SAMPLES);
+            mid_count+=swr_convert(forw_ctx, amid, 3*SAMPLES, (const uint8_t **)ain,       0);
+        } else {
+            int tmp_count;
+            mid_count= swr_convert(forw_ctx, amid,         0, (const uint8_t **)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, (const uint8_t **)ain,       0);
+            shift(amid,  mid_count, out_ch_count, out_sample_fmt); tmp_count = mid_count;
+            mid_count+=swr_convert(forw_ctx, amid,         2, (const uint8_t **)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, (const uint8_t **)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, (const uint8_t **)ain,       0);
+            shift(amid,  -tmp_count, out_ch_count, out_sample_fmt);
+        }
+        out_count= swr_convert(backw_ctx,aout, SAMPLES, (const uint8_t **)amid, mid_count);
+
+        for(ch=0; ch<in_ch_count; ch++){
+            double sse, 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, fabs(a-b));
+            }
+            sse= sum_aa + sum_bb - 2*sum_ab;
+            if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error
+
+            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);
+        }
+
+        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, 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, fabs(a-b));
+                }
+                sse= sum_aa + sum_bb - 2*sum_ab;
+                if(sse < 0 && sse > -0.00001) sse=0; //fix rounding error
+
+                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;
+}