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-rw-r--r--libavfilter/vf_psnr.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/vf_psnr.c b/libavfilter/vf_psnr.c
index bb0dbe0681..c4af4ac7c6 100644
--- a/libavfilter/vf_psnr.c
+++ b/libavfilter/vf_psnr.c
@@ -305,13 +305,17 @@ static int config_input_ref(AVFilterLink *inlink)
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
+ PSNRContext *s = ctx->priv;
AVFilterLink *mainlink = ctx->inputs[0];
+ int ret;
outlink->w = mainlink->w;
outlink->h = mainlink->h;
outlink->time_base = mainlink->time_base;
outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
outlink->frame_rate = mainlink->frame_rate;
+ if ((ret = ff_dualinput_init(ctx, &s->dinput)) < 0)
+ return ret;
return 0;
}