@@ -7,4 +7,4 @@ HEADERS = swresample.h

 OBJS = swresample.o audioconvert.o resample.o rematrix.o dither.o

-TESTPROGS = swresample_test

+TESTPROGS = swresample

new file mode 100644

@@ -0,0 +1,410 @@

+/*

+ * Copyright (C) 2011 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/common.h"

+#include "libavutil/audioconvert.h"

+#include "libavutil/opt.h"

+#include "swresample.h"

+

+#undef time

+#include "time.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;

+}

+

+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 varing 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 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;

+    uint32_t rand_seed = 0;

+    int remaining_tests[max_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")) {

+            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]), (void*)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(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);

+#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, FFABS(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", 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, 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;

+                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;

+}

deleted file mode 100644

@@ -1,410 +0,0 @@

-/*

- * Copyright (C) 2011 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/common.h"

-#include "libavutil/audioconvert.h"

-#include "libavutil/opt.h"

-#include "swresample.h"

-

-#undef time

-#include "time.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;

-}

-

-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 varing 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 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;

-    uint32_t rand_seed = 0;

-    int remaining_tests[max_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")) {

-            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]), (void*)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(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);

-#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, FFABS(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", 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, 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;

-                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;

-}