inspect: elements: List plugin, feature, element long name

examples/Cargo.toml

@@ -29,6 +29,7 @@ gst-rtsp = { package = "gstreamer-rtsp", path = "../gstreamer-rtsp", optional =
 gst-rtsp-server = { package = "gstreamer-rtsp-server", path = "../gstreamer-rtsp-server", optional = true }
 gst-allocators = { package = "gstreamer-allocators", path = "../gstreamer-allocators", optional = true }
 gio = { git = "https://github.com/gtk-rs/gtk-rs-core", optional = true }
+ansi_term = "0.12.1"
 anyhow = "1.0"
 derive_more = "0.99.5"
 futures = "0.3"

examples/src/bin/gst-inspect.rs

@@ -18,6 +18,37 @@
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
-fn main() {
-    println!("Hello, world!");
+use ansi_term::Color;
+use gst::prelude::*;
+
+const BRBLUE: Color = Color::RGB(97, 127, 166);
+const PLUGIN_NAME_COLOR: Color = BRBLUE;
+const ELEMENT_NAME_COLOR: Color = Color::Green;
+
+fn print_element_list() {
+    let registry = gst::Registry::get();
+    let mut plugins = registry.plugins();
+
+    plugins.sort_by(|p1, p2| p1.plugin_name().cmp(&p2.plugin_name()));
+    for plugin in plugins {
+        let mut features = registry.features_by_plugin(&plugin.plugin_name());
+
+        features.sort_by(|f1, f2| f1.name().cmp(&f2.name()));
+        for feature in features {
+            if let Some(element_factory) = feature.downcast_ref::<gst::ElementFactory>() {
+                println!(
+                    "{}:  {}: {}",
+                    PLUGIN_NAME_COLOR.paint(plugin.plugin_name().as_str()),
+                    ELEMENT_NAME_COLOR.paint(element_factory.name().as_str()),
+                    element_factory.longname()
+                );
+            }
+        }
+    }
+}
+
+fn main() {
+    gst::init().unwrap();
+
+    print_element_list();
 }