From 22e28216336da876e1fd17f380ce42eaf1446769 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Mon, 17 Feb 2014 13:36:38 +0000
Subject: chasing indexing error

---
 ffmpeg/libswresample/swresample-test.c | 414 ---------------------------------
 1 file changed, 414 deletions(-)
 delete mode 100644 ffmpeg/libswresample/swresample-test.c

(limited to 'ffmpeg/libswresample/swresample-test.c')

diff --git a/ffmpeg/libswresample/swresample-test.c b/ffmpeg/libswresample/swresample-test.c
deleted file mode 100644
index 379d385..0000000
--- a/ffmpeg/libswresample/swresample-test.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * 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 "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(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,
-};
-
-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 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]), (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(!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(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, 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", 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, 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;
-}
-- 
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