d3d12vp9dec: Disallow resolution change to larger size on non-keyframe

Intel GPU seems to be crashing if the case happens.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6709>

subprojects/gst-plugins-bad/sys/d3d12/gstd3d12decoder.cpp

@@ -915,6 +915,34 @@ gst_d3d12_decoder_new_picture (GstD3D12Decoder * decoder,
   return GST_FLOW_OK;
 }
 
+GstFlowReturn
+gst_d3d12_decoder_new_picture_with_size (GstD3D12Decoder * decoder,
+    GstVideoDecoder * videodec, GstCodecPicture * picture, guint width,
+    guint height)
+{
+  g_return_val_if_fail (GST_IS_D3D12_DECODER (decoder), GST_FLOW_ERROR);
+  g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), GST_FLOW_ERROR);
+  g_return_val_if_fail (picture != nullptr, GST_FLOW_ERROR);
+
+  auto priv = decoder->priv;
+  if (!priv->session) {
+    GST_ERROR_OBJECT (decoder, "No session configured");
+    return GST_FLOW_ERROR;
+  }
+
+  if (priv->session->coded_width >= width &&
+      priv->session->coded_height >= height) {
+    return gst_d3d12_decoder_new_picture (decoder, videodec, picture);
+  }
+
+  /* FIXME: D3D12_VIDEO_DECODE_CONFIGURATION_FLAG_ALLOW_RESOLUTION_CHANGE_ON_NON_KEY_FRAME
+   * supported GPU can decode stream with mixed decoder heap */
+  GST_ERROR_OBJECT (decoder,
+      "Non-keyframe resolution change with larger size is not supported");
+
+  return GST_FLOW_ERROR;
+}
+
 static inline GstD3D12DecoderPicture *
 get_decoder_picture (GstCodecPicture * picture)
 {

subprojects/gst-plugins-bad/sys/d3d12/gstd3d12decoder.h

@@ -130,6 +130,12 @@ GstFlowReturn     gst_d3d12_decoder_new_picture   (GstD3D12Decoder * decoder,
                                                    GstVideoDecoder * videodec,
                                                    GstCodecPicture * picture);
 
+GstFlowReturn     gst_d3d12_decoder_new_picture_with_size (GstD3D12Decoder * decoder,
+                                                           GstVideoDecoder * videodec,
+                                                           GstCodecPicture * picture,
+                                                           guint width,
+                                                           guint height);
+
 GstFlowReturn     gst_d3d12_decoder_duplicate_picture (GstD3D12Decoder * decoder,
                                                        GstCodecPicture * src,
                                                        GstCodecPicture * dst);

subprojects/gst-plugins-bad/sys/d3d12/gstd3d12vp9dec.cpp

@@ -266,9 +266,11 @@ gst_d3d12_vp9_dec_new_picture (GstDxvaVp9Decoder * decoder,
     GstCodecPicture * picture)
 {
   auto self = GST_D3D12_VP9_DEC (decoder);
+  auto vp9pic = GST_VP9_PICTURE (picture);
 
-  return gst_d3d12_decoder_new_picture (self->decoder,
+  return gst_d3d12_decoder_new_picture_with_size (self->decoder,
-      GST_VIDEO_DECODER (decoder), picture);
+      GST_VIDEO_DECODER (decoder), picture, vp9pic->frame_hdr.width,
+      vp9pic->frame_hdr.height);
 }
 
 static GstFlowReturn