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| author | Mark Visser <mjmvisser@gmail.com> | 2013-05-21 16:14:46 -0400 |
|---|---|---|
| committer | Mark Visser <mjmvisser@gmail.com> | 2013-06-14 17:05:19 -0400 |
| commit | 0defc77e9deb081c11c4b5cc44891c712e07b92b (patch) | |
| tree | 3a637ee9d00cd103477036b183bde2680e484eaa /libavfilter/vf_drawtext.c | |
| parent | 7fff3df6b277d4f1ebc504e950c9de56cdc14ddd (diff) | |
added start_number parameter to drawtext to permit an offset to n/frame_num var
Diffstat (limited to 'libavfilter/vf_drawtext.c')
| -rw-r--r-- | libavfilter/vf_drawtext.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c index 157bfc72f9..fcdf53a3ad 100644 --- a/libavfilter/vf_drawtext.c +++ b/libavfilter/vf_drawtext.c @@ -164,6 +164,7 @@ typedef struct { AVTimecode tc; ///< timecode context int tc24hmax; ///< 1 if timecode is wrapped to 24 hours, 0 otherwise int reload; ///< reload text file for each frame + int start_number; ///< starting frame number for n/frame_num var } DrawTextContext; #define OFFSET(x) offsetof(DrawTextContext, x) @@ -198,6 +199,7 @@ static const AVOption drawtext_options[]= { {"rate", "set rate (timecode only)", OFFSET(tc_rate), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX, FLAGS}, {"reload", "reload text file for each frame", OFFSET(reload), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, {"fix_bounds", "if true, check and fix text coords to avoid clipping", OFFSET(fix_bounds), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS}, + {"start_number", "start frame number for n/frame_num variable", OFFSET(start_number), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS}, /* FT_LOAD_* flags */ { "ft_load_flags", "set font loading flags for libfreetype", OFFSET(ft_load_flags), AV_OPT_TYPE_FLAGS, { .i64 = FT_LOAD_DEFAULT | FT_LOAD_RENDER}, 0, INT_MAX, FLAGS, "ft_load_flags" }, @@ -614,7 +616,7 @@ static int func_frame_num(AVFilterContext *ctx, AVBPrint *bp, { DrawTextContext *s = ctx->priv; - av_bprintf(bp, "%d", (int)s->var_values[VAR_N]); + av_bprintf(bp, "%d", (int)s->var_values[VAR_N]+s->start_number); return 0; } |