organize hack code

hack/test.c

@@ -0,0 +1,21 @@
+#include <gst/gst.h>
+#include <stdio.h>
+
+gboolean caps_map_func (GstCapsFeatures * features, GstStructure * structure, gpointer user_data)
+{
+    printf(gst_caps_features_to_string(features));
+    return TRUE;
+}
+
+int main () {
+    gst_init(NULL, NULL);
+
+    GstCaps * caps = gst_caps_from_string("audio/x-raw");
+
+    gst_caps_filter_and_map_in_place(caps, caps_map_func, NULL);
+    gst_caps_foreach(caps, caps_map_func, NULL);
+
+    gst_caps_unref(caps);
+
+    return 0;
+}

hack/test.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/tinyzimmer/go-gst/gst"
+)
+
+func main() {
+	gst.Init(nil)
+
+	caps := gst.NewCapsFromString("audio/x-raw")
+
+	// caps.ForEach(func(features *gst.CapsFeatures, structure *gst.Structure) bool {
+	// 	fmt.Println(features)
+	// 	return true
+	// })
+
+	caps.FilterAndMapInPlace(func(features *gst.CapsFeatures, structure *gst.Structure) bool {
+		fmt.Println(features)
+		return true
+	})
+
+	caps.Unref()
+}