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Moves analysis to the beginning of opus_encode()

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Jean-Marc Valin 2012-11-13 02:24:07 -05:00
parent 6044907c82
commit 7ebacf430a
3 changed files with 33 additions and 31 deletions
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18
src/analysis.c
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@ -185,19 +185,21 @@ void tonality_analysis(TonalityAnalysisState *tonal, AnalysisInfo *info, CELTEnc
for (i=0;i<N2;i++)
{
float w = analysis_window[i];
in[i].r = MULT16_16(w, x[i]);
in[i].i = MULT16_16(w, x[N-N2+i]);
in[N-i-1].r = MULT16_16(w, x[N-i-1]);
in[N-i-1].i = MULT16_16(w, x[2*N-N2-i-1]);
in[i].r = MULT16_16(w, tonal->inmem[i]);
in[i].i = MULT16_16(w, x[i]);
in[N-i-1].r = MULT16_16(w, x[N2-i-1]);
in[N-i-1].i = MULT16_16(w, x[N-i-1]);
tonal->inmem[i] = x[N2+i];
}
} else {
for (i=0;i<N2;i++)
{
float w = analysis_window[i];
in[i].r = MULT16_16(w, x[2*i]+x[2*i+1]);
in[i].i = MULT16_16(w, x[2*(N-N2+i)]+x[2*(N-N2+i)+1]);
in[N-i-1].r = MULT16_16(w, x[2*(N-i-1)]+x[2*(N-i-1)+1]);
in[N-i-1].i = MULT16_16(w, x[2*(2*N-N2-i-1)]+x[2*(2*N-N2-i-1)+1]);
in[i].r = MULT16_16(w, tonal->inmem[i]);
in[i].i = MULT16_16(w, x[2*i]+x[2*i+1]);
in[N-i-1].r = MULT16_16(w, x[2*(N2-i-1)]+x[2*(N2-i-1)+1]);
in[N-i-1].i = MULT16_16(w, x[2*(N-i-1)]+x[2*(N-i-1)+1]);
tonal->inmem[i] = x[2*(N2+i)]+x[2*(N2+i)+1];
}
}
opus_fft(kfft, in, out);