diff options
Diffstat (limited to 'src/analysis.c')
| -rw-r--r-- | src/analysis.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/analysis.c b/src/analysis.c index 6c1db2f3..b39defe5 100644 --- a/src/analysis.c +++ b/src/analysis.c @@ -35,6 +35,10 @@ #include "arch.h" #include "quant_bands.h" #include <stdio.h> +#ifndef FIXED_POINT +#include "mlp.c" +#include "mlp_data.c" +#endif #ifndef M_PI #define M_PI 3.141592653 @@ -103,6 +107,7 @@ void tonality_analysis(TonalityAnalysisState *tonal, AnalysisInfo *info, CELTEnc float slope=0; float frame_stationarity; float relativeE; + float frame_prob; celt_encoder_ctl(celt_enc, CELT_GET_MODE(&mode)); kfft = mode->mdct.kfft[0]; @@ -294,6 +299,26 @@ void tonality_analysis(TonalityAnalysisState *tonal, AnalysisInfo *info, CELTEnc features[25] = info->activity; features[26] = frame_stationarity; +#ifndef FIXED_POINT + mlp_process(&net, features, &frame_prob); + frame_prob = .5*(frame_prob+1); + /*frame_prob = .45*frame_prob + .55*frame_prob*frame_prob*frame_prob;*/ + /*printf("%f\n", frame_prob);*/ + { + float alpha, beta; + float p0, p1; + alpha = .01; + beta = .2; + p0 = (1-info->music_prob)*(1-alpha) + info->music_prob *alpha; + p1 = info->music_prob *(1-alpha) + (1-info->music_prob)*alpha; + p0 *= pow(1-frame_prob, beta); + p1 *= pow(frame_prob, beta); + info->music_prob = p1/(p0+p1); + /*printf("%f\n", info->music_prob);*/ + } +#else + info->music_prob = 0; +#endif /*for (i=0;i<27;i++) printf("%f ", features[i]); printf("\n");*/ |