[FFmpeg-devel] Patch solving resource leak in drawtext border

[Leandro Santiago]

There's a resource leak in drawtext filter where the border glyph is not
freed after being used.

I'm sending as an attachment both test program which reproduces the leak
(vf_drawtext.c:311, acording to Valgrind) and a patch which fixes it.

The test program is essentially the filtering_test.c included in ffmpeg
source tree, but requires a font-file Arial.ttf in the current directory.

-- 
Sent from my mind
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