diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2012-04-26 22:21:22 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2012-04-26 22:23:07 +0400 |
commit | f1f5b39866c4deb7800aa9288010cdbd386da477 (patch) | |
tree | 5d2042cce3fc641e4c3d33ee5d67f2838e0bbaf9 /libswresample | |
parent | 73be22f526f541349641e1e4f7bb6ec4234f58e4 (diff) |
swr-test: support fabrices audiogen like avr
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample')
-rw-r--r-- | libswresample/swresample_test.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libswresample/swresample_test.c b/libswresample/swresample_test.c index 305827ba18..ba77d7902d 100644 --- a/libswresample/swresample_test.c +++ b/libswresample/swresample_test.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2011 Michael Niedermayer (michaelni@gmx.at) + * Copyright (c) 2002 Fabrice Bellard * * This file is part of libswresample * @@ -136,6 +137,84 @@ 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 seed; + +#define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v); +#define dbl_rand(x) ((seed = seed * 1664525 + 1013904223)*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 + (seed = seed * 1664525 + 1013904223) % 5000; + tabf2[ch] = 100 + (seed = seed * 1664525 + 1013904223) % 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, in_ch_layout_index, out_ch_layout_index, osr, flush_count; int in_sample_fmt_index, out_sample_fmt_index; @@ -220,10 +299,14 @@ int main(int argc, char **argv){ 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++; mode%=3; if(mode==0 /*|| out_sample_rate == in_sample_rate*/) { |