From 571f32eec0fe7833dde83308b05769207aed20b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Wed, 21 May 2025 15:39:46 +0300
Subject: [PATCH] qtdemux: cmpd box is only mandatory for uncompressed video
 with uncC version 0

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9039>
---
 subprojects/gst-plugins-good/gst/isomp4/qtdemux.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c b/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
index d9f70b050e..6e02ef318c 100644
--- a/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
+++ b/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
@@ -18866,13 +18866,13 @@ qtdemux_video_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
       cmpd_node =
           qtdemux_tree_get_child_by_type_full (stsd_entry, FOURCC_cmpd,
           &reader);
-      if (!cmpd_node) {
+      if (uncC.version == 0 && !cmpd_node) {
         GST_WARNING_OBJECT (qtdemux,
             "Expected to find cmpd box when parsing uncv");
         break;
       }
 
-      if (!qtdemux_parse_cmpd (qtdemux, &reader, &cmpd)) {
+      if (cmpd_node && !qtdemux_parse_cmpd (qtdemux, &reader, &cmpd)) {
         GST_WARNING_OBJECT (qtdemux, "Failed parsing cmpd box");
         break;
       }