plugin-development: syntax highlighting in code snippets

Signed-off-by: Carlos Eduardo R. B. Fonseca <cadubentzen@gmail.com>

https://bugzilla.gnome.org/show_bug.cgi?id=788029

3 files changed, 89 insertions, 84 deletions

diff --git a/markdown/plugin-development/advanced/scheduling.md b/markdown/plugin-development/advanced/scheduling.md
index 336954b..470cd63 100644
--- a/markdown/plugin-development/advanced/scheduling.md
+++ b/markdown/plugin-development/advanced/scheduling.md
@@ -291,44 +291,46 @@ access:
 The following example will show how a `_get_range
 ()`-function can be implemented in a source element:
 
-    #include "filter.h"
-    static GstFlowReturn
-            gst_my_filter_get_range (GstPad     * pad,
-                         GstObject  * parent,
-                         guint64      offset,
-                         guint        length,
-                         GstBuffer ** buf);
+```c
+#include "filter.h"
+static GstFlowReturn
+        gst_my_filter_get_range (GstPad     * pad,
+                     GstObject  * parent,
+                     guint64      offset,
+                     guint        length,
+                     GstBuffer ** buf);
 
-    G_DEFINE_TYPE (GstMyFilter, gst_my_filter, GST_TYPE_ELEMENT);
+G_DEFINE_TYPE (GstMyFilter, gst_my_filter, GST_TYPE_ELEMENT);
 
 
 
-    static void
-    gst_my_filter_init (GstMyFilter * filter)
-    {
+static void
+gst_my_filter_init (GstMyFilter * filter)
+{
 
-    [..]
+[..]
 
-      gst_pad_set_getrange_function (filter->srcpad,
-          gst_my_filter_get_range);
+  gst_pad_set_getrange_function (filter->srcpad,
+      gst_my_filter_get_range);
 
-    [..]
-    }
+[..]
+}
 
-    static GstFlowReturn
-    gst_my_filter_get_range (GstPad     * pad,
-                 GstObject  * parent,
-                 guint64      offset,
-                 guint        length,
-                 GstBuffer ** buf)
-    {
+static GstFlowReturn
+gst_my_filter_get_range (GstPad     * pad,
+             GstObject  * parent,
+             guint64      offset,
+             guint        length,
+             GstBuffer ** buf)
+{
 
-      GstMyFilter *filter = GST_MY_FILTER (parent);
+  GstMyFilter *filter = GST_MY_FILTER (parent);
 
-      [.. here, you would fill *buf ..]
+  [.. here, you would fill *buf ..]
 
-      return GST_FLOW_OK;
-    }
+  return GST_FLOW_OK;
+}
+```
 
 In practice, many elements that could theoretically do random access,
 may in practice often be activated in push-mode scheduling anyway, since
diff --git a/markdown/plugin-development/basics/boiler.md b/markdown/plugin-development/basics/boiler.md
index fd17249..0eed936 100644
--- a/markdown/plugin-development/basics/boiler.md
+++ b/markdown/plugin-development/basics/boiler.md
@@ -262,20 +262,22 @@ a new pad from this template using `gst_pad_new_from_static_template
 ()`, you will need to declare the pad template as a global variable. More on
 this subject in [Specifying the pads][pads].
 
-    static GstStaticPadTemplate sink_factory = [..],
-        src_factory = [..];
-
-    static void
-    gst_my_filter_class_init (GstMyFilterClass * klass)
-    {
-      GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-    [..]
-
-      gst_element_class_add_pad_template (element_class,
-        gst_static_pad_template_get (&src_factory));
-      gst_element_class_add_pad_template (element_class,
-        gst_static_pad_template_get (&sink_factory));
-    }
+```c
+static GstStaticPadTemplate sink_factory = [..],
+    src_factory = [..];
+
+static void
+gst_my_filter_class_init (GstMyFilterClass * klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+[..]
+
+  gst_element_class_add_pad_template (element_class,
+    gst_static_pad_template_get (&src_factory));
+  gst_element_class_add_pad_template (element_class,
+    gst_static_pad_template_get (&sink_factory));
+}
+```
 
 The last argument in a template is its type or list of supported types.
 In this example, we use 'ANY', which means that this element will accept
diff --git a/markdown/plugin-development/basics/states.md b/markdown/plugin-development/basics/states.md
index f37dcf3..86d4ae6 100644
--- a/markdown/plugin-development/basics/states.md
+++ b/markdown/plugin-development/basics/states.md
@@ -77,49 +77,50 @@ from one state to another.
 Do not g\_assert for unhandled state changes; this is taken care of by
 the GstElement base class.
 
-    static GstStateChangeReturn
-    gst_my_filter_change_state (GstElement *element, GstStateChange transition);
-
-    static void
-    gst_my_filter_class_init (GstMyFilterClass *klass)
-    {
-      GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
-      element_class->change_state = gst_my_filter_change_state;
-    }
-
-
-
-    static GstStateChangeReturn
-    gst_my_filter_change_state (GstElement *element, GstStateChange transition)
-    {
-      GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
-      GstMyFilter *filter = GST_MY_FILTER (element);
-
-      switch (transition) {
-        case GST_STATE_CHANGE_NULL_TO_READY:
-          if (!gst_my_filter_allocate_memory (filter))
-            return GST_STATE_CHANGE_FAILURE;
-          break;
-        default:
-          break;
-      }
-
-      ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-      if (ret == GST_STATE_CHANGE_FAILURE)
-        return ret;
-
-      switch (transition) {
-        case GST_STATE_CHANGE_READY_TO_NULL:
-          gst_my_filter_free_memory (filter);
-          break;
-        default:
-          break;
-      }
-
-      return ret;
-    }
-
+```c
+static GstStateChangeReturn
+gst_my_filter_change_state (GstElement *element, GstStateChange transition);
+
+static void
+gst_my_filter_class_init (GstMyFilterClass *klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+  element_class->change_state = gst_my_filter_change_state;
+}
+
+
+
+static GstStateChangeReturn
+gst_my_filter_change_state (GstElement *element, GstStateChange transition)
+{
+  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
+  GstMyFilter *filter = GST_MY_FILTER (element);
+
+  switch (transition) {
+	case GST_STATE_CHANGE_NULL_TO_READY:
+	  if (!gst_my_filter_allocate_memory (filter))
+		return GST_STATE_CHANGE_FAILURE;
+	  break;
+	default:
+	  break;
+  }
+
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+  if (ret == GST_STATE_CHANGE_FAILURE)
+	return ret;
+
+  switch (transition) {
+	case GST_STATE_CHANGE_READY_TO_NULL:
+	  gst_my_filter_free_memory (filter);
+	  break;
+	default:
+	  break;
+  }
+
+  return ret;
+}
+```
 Note that upwards (NULL=\>READY, READY=\>PAUSED, PAUSED=\>PLAYING) and
 downwards (PLAYING=\>PAUSED, PAUSED=\>READY, READY=\>NULL) state changes
 are handled in two separate blocks with the downwards state change