shithub: opus

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Use stack_alloc for pitch.c

--- a/libcelt/pitch.c

+++ b/libcelt/pitch.c

@@ -105,14 +105,21 @@

    const int lag = MAX_PERIOD;

    const int N = FRAMESIZE(m);

    int best_pitch[2]={0};

-   celt_word16 x_lp[len>>1];

-   celt_word16 x_lp4[len>>2];

-   celt_word16 y_lp4[lag>>2];

-   celt_word32 xcorr[max_pitch>>1];

+   VARDECL(celt_word16, x_lp);

+   VARDECL(celt_word16, x_lp4);

+   VARDECL(celt_word16, y_lp4);

+   VARDECL(celt_word32, xcorr);

    celt_word32 maxcorr=1;

    int offset;

    int shift=0;

+   SAVE_STACK;

+

+   ALLOC(x_lp, len>>1, celt_word16);

+   ALLOC(x_lp4, len>>2, celt_word16);

+   ALLOC(y_lp4, len>>2, celt_word16);

+   ALLOC(xcorr, max_pitch>>1, celt_word32);

+

    /* Down-sample by two and downmix to mono */

    for (i=1;i<len>>1;i++)

       x_lp[i] = SHR32(HALF32(HALF32(x[(2*i-1)*C]+x[(2*i+1)*C])+x[2*i*C]), SIG_SHIFT);

@@ -194,6 +201,8 @@

    CELT_COPY(y, y+(N>>1), (lag-N)>>1);

    CELT_COPY(y+((lag-N)>>1), x_lp, N>>1);

+

+   RESTORE_STACK;

    /*printf ("%d\n", *pitch);*/

 }