From a0997f410cb7eab28f3c58b3988fa72b5d736461 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Tue, 12 Aug 2025 12:30:13 +0300
Subject: [PATCH] video-info: Allow size to be 0 if the number of planes is
 unknown

This happens for DMA_DRM and ENCODED formats.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1775>
---
 gstreamer-video/src/video_info.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gstreamer-video/src/video_info.rs b/gstreamer-video/src/video_info.rs
index 9c3c287fc..67f0c3432 100644
--- a/gstreamer-video/src/video_info.rs
+++ b/gstreamer-video/src/video_info.rs
@@ -805,7 +805,10 @@ impl VideoInfo {
 
     #[inline]
     pub fn is_valid(&self) -> bool {
-        !self.0.finfo.is_null() && self.0.width > 0 && self.0.height > 0 && self.0.size > 0
+        !self.0.finfo.is_null()
+            && self.0.width > 0
+            && self.0.height > 0
+            && (self.0.size > 0 || unsafe { (*self.0.finfo).n_planes } == 0)
     }
 
     #[doc(alias = "gst_video_info_from_caps")]