Fix an integer overflow issue in restoration
https://bugs.chromium.org/p/webm/issues/detail?id=1306 Change-Id: Icd11d373ff08954121c097728e4c7791791e223f
This commit is contained in:
Родитель
438b1dcb72
Коммит
1a16a987ee
|
@ -218,15 +218,15 @@ static void loop_bilateral_filter_tile(uint8_t *data, int tile_idx, int width,
|
|||
|
||||
for (i = 0; i < (v_end - v_start); ++i) {
|
||||
for (j = 0; j < (h_end - h_start); ++j) {
|
||||
int x, y;
|
||||
int flsum = 0, wtsum = 0, wt;
|
||||
int x, y, wt;
|
||||
int64_t flsum = 0, wtsum = 0;
|
||||
uint8_t *data_p2 = data_p + j - RESTORATION_HALFWIN * stride;
|
||||
for (y = -RESTORATION_HALFWIN; y <= RESTORATION_HALFWIN; ++y) {
|
||||
for (x = -RESTORATION_HALFWIN; x <= RESTORATION_HALFWIN; ++x) {
|
||||
wt = (int)wx_lut[y + RESTORATION_HALFWIN][x + RESTORATION_HALFWIN] *
|
||||
(int)wr_lut_[data_p2[x] - data_p[j]];
|
||||
wtsum += wt;
|
||||
flsum += wt * data_p2[x];
|
||||
wtsum += (int64_t)wt;
|
||||
flsum += (int64_t)wt * data_p2[x];
|
||||
}
|
||||
data_p2 += stride;
|
||||
}
|
||||
|
@ -392,15 +392,15 @@ static void loop_bilateral_filter_tile_highbd(uint16_t *data, int tile_idx,
|
|||
|
||||
for (i = 0; i < (v_end - v_start); ++i) {
|
||||
for (j = 0; j < (h_end - h_start); ++j) {
|
||||
int x, y;
|
||||
int flsum = 0, wtsum = 0, wt;
|
||||
int x, y, wt;
|
||||
int64_t flsum = 0, wtsum = 0;
|
||||
uint16_t *data_p2 = data_p + j - RESTORATION_HALFWIN * stride;
|
||||
for (y = -RESTORATION_HALFWIN; y <= RESTORATION_HALFWIN; ++y) {
|
||||
for (x = -RESTORATION_HALFWIN; x <= RESTORATION_HALFWIN; ++x) {
|
||||
wt = (int)wx_lut[y + RESTORATION_HALFWIN][x + RESTORATION_HALFWIN] *
|
||||
(int)wr_lut_[data_p2[x] - data_p[j]];
|
||||
wtsum += wt;
|
||||
flsum += wt * data_p2[x];
|
||||
wtsum += (int64_t)wt;
|
||||
flsum += (int64_t)wt * data_p2[x];
|
||||
}
|
||||
data_p2 += stride;
|
||||
}
|
||||
|
|
Загрузка…
Ссылка в новой задаче