diff --git a/gst-libs/gst/video/gstbasevideocodec.c b/gst-libs/gst/video/gstbasevideocodec.c
index a1dc91db46..9c130ed5e3 100644
--- a/gst-libs/gst/video/gstbasevideocodec.c
+++ b/gst-libs/gst/video/gstbasevideocodec.c
@@ -134,6 +134,8 @@ gst_base_video_codec_reset (GstBaseVideoCodec * base_video_codec)
 
   gst_buffer_replace (&base_video_codec->state.codec_data, NULL);
   gst_caps_replace (&base_video_codec->state.caps, NULL);
+  memset (&base_video_codec->state, 0, sizeof (GstVideoState));
+  base_video_codec->state.format = GST_VIDEO_FORMAT_UNKNOWN;
   GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (base_video_codec);
 }