[FFmpeg-devel] [PATCH]Do not set swscale sizeFactor to -1

[Carl Eugen Hoyos]

HI!

Attached patch may fix ticket #3495.

Please review, Carl Eugen
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diff --git a/libswscale/utils.c b/libswscale/utils.c
index 483b0b2..af22cfa 100644
--- 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;
             }