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avfilter/vf_random: fix crash

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Fixes #8235.
This commit is contained in:
Paul B Mahol
2019-10-10 21:04:56 +02:00
parent f6df99dba1
commit b67af536be
1 changed files with 5 additions and 0 deletions
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5
libavfilter/vf_random.c
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@@ -97,8 +97,13 @@ static int request_frame(AVFilterLink *outlink)
ret = ff_request_frame(ctx->inputs[0]); ret = ff_request_frame(ctx->inputs[0]);
next:
if (ret == AVERROR_EOF && !ctx->is_disabled && s->nb_frames > 0) { if (ret == AVERROR_EOF && !ctx->is_disabled && s->nb_frames > 0) {
AVFrame *out = s->frames[s->nb_frames - 1]; AVFrame *out = s->frames[s->nb_frames - 1];
if (!out) {
s->nb_frames--;
goto next;
}
out->pts = s->pts[s->flush_idx++]; out->pts = s->pts[s->flush_idx++];
ret = ff_filter_frame(outlink, out); ret = ff_filter_frame(outlink, out);
s->frames[s->nb_frames - 1] = NULL; s->frames[s->nb_frames - 1] = NULL;