3 files changed, 33 insertions, 1 deletions
diff --git a/libavfilter/vf_idet.c b/libavfilter/vf_idet.c
index 339f4a6507..b9c4070d48 100644
--- a/libavfilter/vf_idet.c
+++ b/libavfilter/vf_idet.c
@@ -191,6 +191,35 @@ static int filter_frame(AVFilterLink *link, AVFrame *picref)
     return ff_filter_frame(ctx->outputs[0], av_frame_clone(idet->cur));
 }
 
+static int request_frame(AVFilterLink *link)
+{
+    AVFilterContext *ctx = link->src;
+    IDETContext *idet = ctx->priv;
+
+    do {
+        int ret;
+
+        if (idet->eof)
+            return AVERROR_EOF;
+
+        ret = ff_request_frame(link->src->inputs[0]);
+
+        if (ret == AVERROR_EOF && idet->cur) {
+            AVFrame *next = av_frame_clone(idet->next);
+
+            if (!next)
+                return AVERROR(ENOMEM);
+
+            filter_frame(link->src->inputs[0], next);
+            idet->eof = 1;
+        } else if (ret < 0) {
+            return ret;
+        }
+    } while (!idet->cur);
+
+    return 0;
+}
+
 static av_cold void uninit(AVFilterContext *ctx)
 {
     IDETContext *idet = ctx->priv;
@@ -253,6 +282,7 @@ static av_cold int init(AVFilterContext *ctx)
 {
     IDETContext *idet = ctx->priv;
 
+    idet->eof = 0;
     idet->last_type = UNDETERMINED;
     memset(idet->history, UNDETERMINED, HIST_SIZE);
 
@@ -279,6 +309,7 @@ static const AVFilterPad idet_outputs[] = {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .config_props = config_output,
+        .request_frame = request_frame
     },
     { NULL }
 };
diff --git a/libavfilter/vf_idet.h b/libavfilter/vf_idet.h
index ef29fff701..57332dfbdd 100644
--- a/libavfilter/vf_idet.h
+++ b/libavfilter/vf_idet.h
@@ -50,6 +50,7 @@ typedef struct {
     ff_idet_filter_func filter_line;
 
     const AVPixFmtDescriptor *csp;
+    int eof;
 } IDETContext;
 
 void ff_idet_init_x86(IDETContext *idet, int for_16b);
diff --git a/tests/ref/fate/filter-idet b/tests/ref/fate/filter-idet
index f1396c5338..2f9f11ca52 100644
--- a/tests/ref/fate/filter-idet
+++ b/tests/ref/fate/filter-idet
@@ -1 +1 @@
-idet                1790336872e844c867a53150b8ee8810
+idet                005e6ddc8a5daf11cf866a1ec76c2572