Do not set swscale sizeFactor to -1.

Fixes ticket #3495.

Do not set swscale sizeFactor to -1.
Fixes ticket #3495.
e6fe804b · Carl Eugen Hoyos · 3e601662 · e6fe804b
Commit e6fe804b authored Mar 25, 2014 by Carl Eugen Hoyos
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utils.c libswscale/utils.c +1 -1

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--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -367,7 +367,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
        int sizeFactor = -1;

        for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
-            if (flags & scale_algorithms[i].flag) {
+            if (flags & scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
                sizeFactor = scale_algorithms[i].size_factor;
                break;
            }