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avfilter/palettegen: make sure at least one frame was sent to the filter

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Fix FPE.

(cherry picked from commit 84da9339c21f679836a024ce86a69c6ea4a6fd11)
This commit is contained in:
Clément Bœsch 2015-03-15 19:09:16 +01:00
parent 37469af294
commit b80c486fb3
1 changed files with 1 additions and 1 deletions
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2
libavfilter/vf_palettegen.c
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@ -504,7 +504,7 @@ static int request_frame(AVFilterLink *outlink)
int r;
r = ff_request_frame(inlink);
if (r == AVERROR_EOF && !s->palette_pushed) {
if (r == AVERROR_EOF && !s->palette_pushed && s->nb_refs) {
r = ff_filter_frame(outlink, get_palette_frame(ctx));
s->palette_pushed = 1;
return r;