Implement Send+Sync for all wrapper types

gst-plugin/src/base_sink.rs

@@ -199,6 +199,9 @@ pub type BaseSinkClass = ClassStruct<BaseSink>;
 unsafe impl BaseSinkClassExt<BaseSink> for BaseSinkClass {}
 unsafe impl ElementClassExt<BaseSink> for BaseSinkClass {}
 
+unsafe impl Send for BaseSink {}
+unsafe impl Sync for BaseSink {}
+
 #[macro_export]
 macro_rules! box_base_sink_impl(
     ($name:ident) => {

gst-plugin/src/base_src.rs

@@ -250,6 +250,9 @@ pub type BaseSrcClass = ClassStruct<BaseSrc>;
 unsafe impl BaseSrcClassExt<BaseSrc> for BaseSrcClass {}
 unsafe impl ElementClassExt<BaseSrc> for BaseSrcClass {}
 
+unsafe impl Send for BaseSrc {}
+unsafe impl Sync for BaseSrc {}
+
 #[macro_export]
 macro_rules! box_base_src_impl(
     ($name:ident) => {

gst-plugin/src/base_transform.rs

@@ -324,6 +324,9 @@ pub type BaseTransformClass = ClassStruct<BaseTransform>;
 unsafe impl BaseTransformClassExt<BaseTransform> for BaseTransformClass {}
 unsafe impl ElementClassExt<BaseTransform> for BaseTransformClass {}
 
+unsafe impl Send for BaseTransform {}
+unsafe impl Sync for BaseTransform {}
+
 #[macro_export]
 macro_rules! box_base_transform_impl(
     ($name:ident) => {

gst-plugin/src/bin.rs

@@ -105,6 +105,9 @@ pub type BinClass = ClassStruct<Bin>;
 unsafe impl BinClassExt<Bin> for BinClass {}
 unsafe impl ElementClassExt<Bin> for BinClass {}
 
+unsafe impl Send for Bin {}
+unsafe impl Sync for Bin {}
+
 #[macro_export]
 macro_rules! box_bin_impl(
     ($name:ident) => {

gst-plugin/src/element.rs

@@ -166,6 +166,9 @@ pub type ElementClass = ClassStruct<Element>;
 // FIXME: Boilerplate
 unsafe impl ElementClassExt<Element> for ElementClass {}
 
+unsafe impl Send for Element {}
+unsafe impl Sync for Element {}
+
 #[macro_export]
 macro_rules! box_element_impl(
     ($name:ident) => {

gst-plugin/src/pipeline.rs

@@ -64,6 +64,9 @@ unsafe impl PipelineClassExt<Pipeline> for PipelineClass {}
 unsafe impl BinClassExt<Pipeline> for PipelineClass {}
 unsafe impl ElementClassExt<Pipeline> for PipelineClass {}
 
+unsafe impl Send for Pipeline {}
+unsafe impl Sync for Pipeline {}
+
 #[macro_export]
 macro_rules! box_pipeline_impl(
     ($name:ident) => {