From e3667fd8d2be732ca07ac894a697fff216513faa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Fri, 3 Jul 2020 12:24:06 +0300
Subject: [PATCH] video/video_info: Add field_height() function

---
 gstreamer-video/src/video_info.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gstreamer-video/src/video_info.rs b/gstreamer-video/src/video_info.rs
index ef8b013a7..eceed8eb1 100644
--- a/gstreamer-video/src/video_info.rs
+++ b/gstreamer-video/src/video_info.rs
@@ -609,6 +609,15 @@ impl VideoInfo {
         self.0.height as u32
     }
 
+    #[cfg(any(feature = "v1_16", feature = "dox"))]
+    pub fn field_height(&self) -> u32 {
+        if self.0.interlace_mode == gst_video_sys::GST_VIDEO_INTERLACE_MODE_ALTERNATE {
+            (self.0.height as u32 + 1) / 2
+        } else {
+            self.0.height as u32
+        }
+    }
+
     pub fn interlace_mode(&self) -> ::VideoInterlaceMode {
         from_glib(self.0.interlace_mode)
     }