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-rw-r--r--libavfilter/vf_drawtext.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c
index f7727ef24f..7c216800a6 100644
--- a/libavfilter/vf_drawtext.c
+++ b/libavfilter/vf_drawtext.c
@@ -139,6 +139,7 @@ typedef struct {
short int draw_box; ///< draw box around text - true or false
int use_kerning; ///< font kerning is used - true/false
int tabsize; ///< tab size
+ int fix_bounds; ///< do we let it go out of frame bounds - t/f
FT_Library library; ///< freetype font library handle
FT_Face face; ///< freetype font face handle
@@ -184,6 +185,8 @@ static const AVOption drawtext_options[]= {
{"timecode", "set initial timecode", OFFSET(tc_opt_string), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX },
{"r", "set rate (timecode only)", OFFSET(tc_rate), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX },
{"rate", "set rate (timecode only)", OFFSET(tc_rate), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX },
+{"fix_bounds", "if true, check and fix text coords to avoid clipping",
+ OFFSET(fix_bounds), AV_OPT_TYPE_INT, {.dbl=1}, 0, 1 },
/* FT_LOAD_* flags */
{"ft_load_flags", "set font loading flags for libfreetype", OFFSET(ft_load_flags), AV_OPT_TYPE_FLAGS, {.dbl=FT_LOAD_DEFAULT|FT_LOAD_RENDER}, 0, INT_MAX, 0, "ft_load_flags" },
@@ -754,8 +757,9 @@ static int draw_text(AVFilterContext *ctx, AVFilterBufferRef *picref,
/* get glyph */
dummy.code = code;
glyph = av_tree_find(dtext->glyphs, &dummy, glyph_cmp, NULL);
- if (!glyph)
+ if (!glyph) {
load_glyph(ctx, &glyph, code);
+ }
y_min = FFMIN(glyph->bbox.yMin, y_min);
y_max = FFMAX(glyph->bbox.yMax, y_max);