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mpegvideo: fix out of heap array accesses
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -1436,7 +1436,7 @@ static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
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y = (x * f) >> 16;
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fr = (x * f) & 0xFFFF;
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buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
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buf[(y + 1) * stride + x] += (color * fr ) >> 16;
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if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
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}
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} else {
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if (sy > ey) {
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@ -1453,7 +1453,7 @@ static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
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x = (y*f) >> 16;
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fr = (y*f) & 0xFFFF;
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buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
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buf[y * stride + x + 1] += (color * fr ) >> 16;
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if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
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}
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}
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}
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