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inspect: Print element class hierarchy

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This commit is contained in:
Fabian Orccon 2023-06-05 09:55:51 +02:00
parent 92ec3a6166
commit dadf35f6aa
1 changed files with 31 additions and 0 deletions
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31
examples/src/bin/gst-inspect.rs
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@ -27,6 +27,8 @@ const PLUGIN_NAME_COLOR: Color = BRBLUE;
const ELEMENT_NAME_COLOR: Color = Color::Green;
const PROP_NAME_COLOR: Color = BRBLUE;
const HEADING_COLOR: Color = Color::Yellow;
const DATA_TYPE_COLOR: Color = Color::Green;
const CHILD_LINK_COLOR: Color = Color::Purple;
fn print_element_list() {
let registry = gst::Registry::get();
@ -63,6 +65,7 @@ fn print_factory_details_info(factory: &gst::ElementFactory) {
print_property("Klass", factory.klass());
print_property("Description", factory.description());
print_property("Author", factory.author());
println!();
}
fn print_plugin_info(plugin: &gst::Plugin) {
@ -88,6 +91,33 @@ fn print_plugin_info(plugin: &gst::Plugin) {
}
print_property("Binary package", plugin.package().as_str());
print_property("Origin URL", plugin.origin().as_str());
println!();
}
fn hierarchy_foreach<F>(type_: gst::glib::Type, foreach_func: &mut F)
where
F: FnMut(gst::glib::Type),
{
if let Some(parent) = type_.parent() {
hierarchy_foreach(parent, foreach_func);
}
foreach_func(type_);
}
fn print_hierarchy(type_: gst::glib::Type) {
let mut level = 0;
let mut func = |cur_type: gst::glib::Type| {
if level > 0 {
print!("{}", " ".repeat(level - 1));
print!(" {}", CHILD_LINK_COLOR.paint("+----"));
}
println!("{}", DATA_TYPE_COLOR.paint(cur_type.name()));
level += 1;
};
hierarchy_foreach(type_, &mut func);
println!();
}
fn print_element_info(feature: &gst::PluginFeature) -> Result<(), String> {
@ -108,6 +138,7 @@ fn print_element_info(feature: &gst::PluginFeature) -> Result<(), String> {
if let Some(plugin) = feature.plugin() {
print_plugin_info(&plugin);
}
print_hierarchy(element.type_());
Ok(())
}