From 6ab2dee97b0eef4c06e9ba8a24a9be01a8c3e33d Mon Sep 17 00:00:00 2001
From: Yogender Gupta <ygupta@nvidia.com>
Date: Mon, 14 Aug 2017 16:11:32 +0530
Subject: [PATCH] scale_npp : Fix pass through mode

---
 libavfilter/vf_scale_npp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavfilter/vf_scale_npp.c b/libavfilter/vf_scale_npp.c
index c36772e..f64ab95 100644
--- a/libavfilter/vf_scale_npp.c
+++ b/libavfilter/vf_scale_npp.c
@@ -320,7 +320,11 @@ static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_heig
     }
 
     if (last_stage < 0)
+    {
+        ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(ctx->inputs[0]->hw_frames_ctx);
         return 0;
+    }
+
     ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage].frames_ctx);
     if (!ctx->outputs[0]->hw_frames_ctx)
         return AVERROR(ENOMEM);
-- 
2.10.1.windows.1

