From 9e3a0fd52b8a2154bf3164a7b1b0a4f977a9d391 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Tue, 10 Dec 2024 13:41:35 +0200
Subject: [PATCH] gstreamer: Add support for new tracer use-structure-params
 API

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1610>
---
 gstreamer/src/subclass/tracer.rs | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/gstreamer/src/subclass/tracer.rs b/gstreamer/src/subclass/tracer.rs
index 8536ef3bc..799018e4b 100644
--- a/gstreamer/src/subclass/tracer.rs
+++ b/gstreamer/src/subclass/tracer.rs
@@ -11,6 +11,13 @@ use crate::{
 
 #[allow(unused_variables)]
 pub trait TracerImpl: GstObjectImpl + ObjectSubclass<Type: IsA<Tracer>> {
+    // rustdoc-stripper-ignore-next
+    /// Whether to use `gst::Structure` style "params" and automatically pass
+    /// them to the corresponding properties during instantiation.
+    ///
+    /// Setting this to `true` requires GStreamer 1.26
+    const USE_STRUCTURE_PARAMS: bool = false;
+
     fn bin_add_post(&self, ts: u64, bin: &Bin, element: &Element, success: bool) {}
     fn bin_add_pre(&self, ts: u64, bin: &Bin, element: &Element) {}
     fn bin_remove_post(&self, ts: u64, bin: &Bin, success: bool) {}
@@ -83,7 +90,28 @@ pub trait TracerImpl: GstObjectImpl + ObjectSubclass<Type: IsA<Tracer>> {
     fn plugin_feature_loaded(&self, ts: u64, feature: &crate::PluginFeature) {}
 }
 
-unsafe impl<T: TracerImpl> IsSubclassable<T> for Tracer {}
+unsafe impl<T: TracerImpl> IsSubclassable<T> for Tracer {
+    fn class_init(class: &mut glib::Class<Self>) {
+        Self::parent_class_init::<T>(class);
+
+        #[cfg(feature = "v1_26")]
+        {
+            let class = class.as_mut();
+            unsafe {
+                ffi::gst_tracer_class_set_use_structure_params(
+                    class,
+                    T::USE_STRUCTURE_PARAMS.into_glib(),
+                );
+            }
+        }
+        #[cfg(not(feature = "v1_26"))]
+        {
+            if T::USE_STRUCTURE_PARAMS {
+                panic!("Can only use `USE_STRUCTURE_PARAMS` with GStreamer 1.26 and newer");
+            }
+        }
+    }
+}
 
 pub trait TracerImplExt: TracerImpl {
     // rustdoc-stripper-ignore-next