drawtext: fix text_{w, h} expression vars

Before, {text_,}{w,h} vars hadn't got initialized Signed-off-by: Anton Khirnov <anton@khirnov.net>
13 years ago · 2b43dfce36
parent e7f0bc8c0f
commit 2b43dfce36
1 changed files with 2 additions and 0 deletions
--- a/libavfilter/vf_drawtext.c
+++ b/libavfilter/vf_drawtext.c
@ -550,7 +550,9 @@ static int dtext_prepare_text(AVFilterContext *ctx)
    y     = FFMIN(y + text_height, height - 1);

    dtext->w = str_w;
+    dtext->var_values[VAR_TEXT_W] = dtext->var_values[VAR_TW] = dtext->w;
    dtext->h = y;
+    dtext->var_values[VAR_TEXT_H] = dtext->var_values[VAR_TH] = dtext->h;

    return 0;
 }