lavfi: add error handling to start_frame().

1 files changed, 17 insertions, 4 deletions

diff --git a/libavfilter/vf_delogo.c b/libavfilter/vf_delogo.c
index ffaaa22266..5f8f9ff6ff 100644
--- a/libavfilter/vf_delogo.c
+++ b/libavfilter/vf_delogo.c
@@ -214,22 +214,35 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
     return 0;
 }
 
-static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
+static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
 {
     AVFilterLink *outlink = inlink->dst->outputs[0];
-    AVFilterBufferRef *outpicref;
+    AVFilterBufferRef *outpicref = NULL;
+    int ret = 0;
 
     if (inpicref->perms & AV_PERM_PRESERVE) {
         outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE,
                                         outlink->w, outlink->h);
+        if (!outpicref)
+            return AVERROR(ENOMEM);
+
         avfilter_copy_buffer_ref_props(outpicref, inpicref);
         outpicref->video->w = outlink->w;
         outpicref->video->h = outlink->h;
-    } else
+    } else {
         outpicref = avfilter_ref_buffer(inpicref, ~0);
+        if (!outpicref)
+            return AVERROR(ENOMEM);
+    }
+
+    ret = ff_start_frame(outlink, avfilter_ref_buffer(outpicref, ~0));
+    if (ret < 0) {
+        avfilter_unref_bufferp(&outpicref);
+        return ret;
+    }
 
     outlink->out_buf = outpicref;
-    ff_start_frame(outlink, avfilter_ref_buffer(outpicref, ~0));
+    return 0;
 }
 
 static void null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { }