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avfilter/f_drawgraph: fix drawing of first point for non-first metadata key 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2018-06-03 18:50:04 +02:00
parent 9832885386
commit 29e0879b29
1 changed files with 6 additions and 6 deletions
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12
libavfilter/f_drawgraph.c
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@ -43,7 +43,7 @@ typedef struct DrawGraphContext {
AVFrame *out;
int x;
int prev_y[4];
int first;
int first[4];
float *values[4];
int values_size[4];
int nb_values;
@ -102,7 +102,7 @@ static av_cold int init(AVFilterContext *ctx)
}
}
s->first = 1;
s->first[0] = s->first[1] = s->first[2] = s->first[3] = 1;
if (s->slide == 4) {
s->values[0] = av_fast_realloc(NULL, &s->values_size[0], 2000);
@ -282,8 +282,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
draw_dot(fg, x, y, out);
break;
case 2:
if (s->first) {
s->first = 0;
if (s->first[i]) {
s->first[i] = 0;
s->prev_y[i] = y;
}
@ -366,8 +366,8 @@ static int request_frame(AVFilterLink *outlink)
draw_dot(fg, x, y, out);
break;
case 2:
if (s->first) {
s->first = 0;
if (s->first[i]) {
s->first[i] = 0;
s->prev_y[i] = y;
}