qdm2: avoid integer overflow

CC: libav-stable@libav.org Bug-Id: CID 700555
11 years ago · 1f80742f49
parent 312daa1589
commit 1f80742f49
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/qdm2.c
+++ b/libavcodec/qdm2.c
@ -730,7 +730,7 @@ static void fill_coding_method_array(sb_int8_array tone_level_idx,
                    for (j = 0; j < 64; j++)
                        acc += tone_level_idx_temp[ch][sb][j];

-            multres = 0x66666667 * (acc * 10);
+            multres = 0x66666667LL * (acc * 10);
            esp_40 = (multres >> 32) / 8 + ((multres & 0xffffffff) >> 31);
            for (ch = 0;  ch < nb_channels; ch++)
                for (sb = 0; sb < 30; sb++)