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avfilter/vf_vignette: force per frame evaluation if per frame variables are used

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-30 21:50:15 +02:00
parent 828759ed9a
commit f8fa392a2e
1 changed files with 7 additions and 2 deletions
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9
libavfilter/vf_vignette.c
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@ -169,15 +169,20 @@ static void update_context(VignetteContext *s, AVFilterLink *inlink, AVFrame *fr
s->var_values[VAR_T] = TS2T(frame->pts, inlink->time_base);
s->var_values[VAR_PTS] = TS2D(frame->pts);
} else {
s->var_values[VAR_N] = 0;
s->var_values[VAR_N] = NAN;
s->var_values[VAR_T] = NAN;
s->var_values[VAR_PTS] = NAN;
}
s->angle = av_clipf(av_expr_eval(s->angle_pexpr, s->var_values, NULL), 0, M_PI_2);
s->angle = av_expr_eval(s->angle_pexpr, s->var_values, NULL);
s->x0 = av_expr_eval(s->x0_pexpr, s->var_values, NULL);
s->y0 = av_expr_eval(s->y0_pexpr, s->var_values, NULL);
if (isnan(s->x0) || isnan(s->y0) || isnan(s->angle))
s->eval_mode = EVAL_MODE_FRAME;
s->angle = av_clipf(s->angle, 0, M_PI_2);
if (s->backward) {
for (y = 0; y < inlink->h; y++) {
for (x = 0; x < inlink->w; x++)