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avfilter/vf_zoompan: do not increase VAR_IN twice, also count from 0

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Fixes #7242.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2018-06-03 14:49:57 +02:00
parent 49eda27c6e
commit 9832885386
1 changed files with 3 additions and 3 deletions
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6
libavfilter/vf_zoompan.c
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@ -167,7 +167,7 @@ static int output_single_frame(AVFilterContext *ctx, AVFrame *in, double *var_va
var_values[VAR_PDURATION] = s->prev_nb_frames;
var_values[VAR_TIME] = pts * av_q2d(outlink->time_base);
var_values[VAR_FRAME] = i;
var_values[VAR_ON] = outlink->frame_count_in + 1;
var_values[VAR_ON] = outlink->frame_count_in;
*zoom = av_expr_eval(s->zoom_expr, var_values, NULL);
@ -274,8 +274,8 @@ static int activate(AVFilterContext *ctx)
s->var_values[VAR_IN_H] = s->var_values[VAR_IH] = s->in->height;
s->var_values[VAR_OUT_W] = s->var_values[VAR_OW] = s->w;
s->var_values[VAR_OUT_H] = s->var_values[VAR_OH] = s->h;
s->var_values[VAR_IN] = inlink->frame_count_out + 1;
s->var_values[VAR_ON] = outlink->frame_count_in + 1;
s->var_values[VAR_IN] = inlink->frame_count_out - 1;
s->var_values[VAR_ON] = outlink->frame_count_in;
s->var_values[VAR_PX] = s->x;
s->var_values[VAR_PY] = s->y;
s->var_values[VAR_X] = 0;