1. ffmpeg
  2. Commit bf972d5e1c6ba7d501e8a60994c2e4e47b41426d
Browse code

Fix slicify when the slice_direction is negative, make it send slices from the bottom to the top one.

Originally committed as revision 20754 to svn://svn.ffmpeg.org/ffmpeg/trunk

Stefano Sabatini authored on 2009/12/07 02:40:41
Showing 1 changed files
libavfilter/vf_slicify.c
History View file @ bf972d5
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@@ -78,11 +78,19 @@ static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
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     SliceContext *slice = link->dst->priv;
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     int y2;
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+    if (slice_dir == 1) {
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     for (y2 = y; y2 + slice->h <= y + h; y2 += slice->h)
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         avfilter_draw_slice(link->dst->outputs[0], y2, slice->h, slice_dir);
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     if (y2 < y + h)
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         avfilter_draw_slice(link->dst->outputs[0], y2, y + h - y2, slice_dir);
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+    } else if (slice_dir == -1) {
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+        for (y2 = y + h; y2 - slice->h >= y; y2 -= slice->h)
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+            avfilter_draw_slice(link->dst->outputs[0], y2 - slice->h, slice->h, slice_dir);
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+
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+        if (y2 > y)
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+            avfilter_draw_slice(link->dst->outputs[0], y, y2 - y, slice_dir);
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+    }
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 }
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 AVFilter avfilter_vf_slicify = {