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

Fix FPE.
This commit is contained in:
Clément Bœsch 2015-03-15 19:09:16 +01:00
parent 0a4808741e
commit 84da9339c2

View File

@ -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;