bitreader: remove an unsigned overflow.

bits_left is in the range [0, 64 (= BD_VALUE_SIZE)] , so the narrowing
conversion should be safe.

Change-Id: I943fcd359eaad76249ee1e1fb03a2ac16945d2fd
This commit is contained in:
Alex Converse 2015-11-19 16:09:03 -08:00
parent b2ccb9c189
commit 36a0c7ffe3

View File

@ -69,7 +69,7 @@ void vpx_reader_fill(vpx_reader *r) {
buffer += (bits >> 3);
value = r->value | (nv << (shift & 0x7));
} else {
const int bits_over = (int)(shift + CHAR_BIT - bits_left);
const int bits_over = (int)(shift + CHAR_BIT - (int)bits_left);
int loop_end = 0;
if (bits_over >= 0) {
count += LOTS_OF_BITS;