From 2a6967a8cd0737ddb9db08c043c68a4ac1707d76 Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Sat, 13 Jul 2024 00:04:10 +0900
Subject: [PATCH] d3d12videosink: Clear cached buffer on format change

Otherwise converter will try to read memory of which layout/format
might be different from configured converter pipeline

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7167>
---
 .../gst-plugins-bad/sys/d3d12/gstd3d12window-swapchain.cpp      | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12window-swapchain.cpp b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12window-swapchain.cpp
index 8d514033e3..d6eddd35c7 100644
--- a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12window-swapchain.cpp
+++ b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12window-swapchain.cpp
@@ -347,6 +347,8 @@ SwapChain::setup_swapchain (GstD3D12Window * window, GstD3D12Device * device,
     }
   }
 
+  gst_clear_buffer (&resource_->cached_buf);
+
   render_format_ = format;
   crop_rect_ = CD3DX12_BOX (0, 0, in_info->width, in_info->height);
   prev_crop_rect_ = crop_rect_;