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dct_partial_test,fwd_txfm: change << to *

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left shift of a negative number is undefined in C; quiets a ubsan
warning

Change-Id: Ib1624ad5326ac8e0eead9348468ef7fe5d4df9a4
This commit is contained in:
James Zern 2017-06-29 14:42:03 -07:00
parent 74dc640565
commit bd77931421
2 changed files with 2 additions and 2 deletions
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2
test/dct_partial_test.cc
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@ -46,7 +46,7 @@ tran_low_t partial_fdct_ref(const Buffer<int16_t> &in, int size) {
}
switch (size) {
case 4: sum <<= 1; break;
case 4: sum *= 2; break;
case 8: /*sum = sum;*/ break;
case 16: sum >>= 1; break;
case 32: sum >>= 3; break;

2
vpx_dsp/fwd_txfm.c
View File

@ -84,7 +84,7 @@ void vpx_fdct4x4_1_c(const int16_t *input, tran_low_t *output, int stride) {
for (r = 0; r < 4; ++r)
for (c = 0; c < 4; ++c) sum += input[r * stride + c];
output[0] = sum << 1;
output[0] = sum * 2;
}
void vpx_fdct8x8_c(const int16_t *input, tran_low_t *final_output, int stride) {