77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
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#include "config.h"
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#include "syn123.h"
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#include <math.h>
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#include <stdio.h>
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#include <stdint.h>
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#define AMPTEST(name, bits, wbits, enc) \
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int name(syn123_handle *sh) \
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{ \
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int err = 0; \
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float factor = 0.5; \
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fprintf(stderr, "amplification %d bits\n", bits); \
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int##bits##_t *audio = malloc(bits/8*1<<bits); \
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size_t clp = 0; \
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for(int##wbits##_t i=0; i<1<<bits; ++i) \
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audio[i] = (int##bits##_t)(i-(1<<(bits-1))); \
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if((err = syn123_amp(audio, enc, 1<<bits, factor, 0., &clp, sh))) \
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{ \
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fprintf(stderr, "cannot amp: %s\n", syn123_strerror(err)); \
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++err; \
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} \
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if(clp) \
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++err; \
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if(!err) \
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for(int##wbits##_t i=0; i<1<<bits; ++i) \
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if(labs((int##wbits##_t)audio[i] - ((i-(1<<(bits-1)))/2)) > 1) \
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{ \
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++err; \
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break; \
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} \
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free(audio); \
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return err ? 1 : 0; \
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}
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AMPTEST(amptest_8, 8, 16, MPG123_ENC_SIGNED_8)
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AMPTEST(amptest_16, 16, 32, MPG123_ENC_SIGNED_16)
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int main()
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{
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int ret = 0;
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fprintf(stderr, "create handle\n");
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syn123_handle *sh = syn123_new(1,1,MPG123_ENC_FLOAT_32,0,NULL);
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if(!sh)
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{
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fprintf(stderr, "cannot create syn123 handle\n");
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++ret;
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}
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if(ret)
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goto end;
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fprintf(stderr, "dB conversion\n");
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double lin = 0.37283;
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double db = syn123_lin2db(lin);
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double ldb = syn123_db2lin(db);
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if(fabs(ldb-lin) > 1e-15)
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{
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fprintf(stderr, "db2lin(lin2db) off by %g\n", ldb-lin);
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++ret;
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}
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db = syn123_lin2db(2);
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if(fabs(db-6.)>0.05)
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{
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fprintf(stderr, "lin2db of factor 2 off by %g", db-6.);
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++ret;
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}
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if(!ret)
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ret += amptest_8(sh);
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if(!ret)
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ret += amptest_16(sh);
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end:
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syn123_del(sh);
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printf(ret ? "FAIL\n" : "PASS\n");
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return 0;
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}
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