shithub: mp3dec

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fix shift overflow in L3_ldexp_q2 with big iscf[]

--- a/minimp3.h

+++ b/minimp3.h

@@ -716,7 +716,10 @@

     for (i = 0; i < (int)(gr->n_long_sfb + gr->n_short_sfb); i++)

     {

-        scf[i] = gain*L3_ldexp_q2(iscf[i] << scf_shift);

+        if (((iscf[i] << scf_shift) >> 2) >= 31)

+            scf[i] = gain*L3_ldexp_q2((iscf[i] << scf_shift) - 30*4) * /*L3_ldexp_q2(30*4)*/ 9.313226e-10f;

+        else

+            scf[i] = gain*L3_ldexp_q2(iscf[i] << scf_shift);

     }

 }