[Tools/Parser] GST Object Emulators

These aux routines emulate GST Objects so that
parsers wouldn't rely on actual GStreamer libraries
and pipeline instances.

This commit is WIP and will be continued by DJ.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

diff --git a/tools/development/parser/grammar.y b/tools/development/parser/grammar.y
index d633956..d1c4861 100644 (file)
--- a/tools/development/parser/grammar.y
+++ b/tools/development/parser/grammar.y
@@ -168,14 +168,14 @@ typedef struct {
   gulong signal_id;
 } DelayedSet;
 
-static int  gst_resolve_reference(reference_t *rr, GstElement *pipeline){
-  GstBin *bin;
+static int  gst_resolve_reference(reference_t *rr, _Element *pipeline){
+  _Element *bin;
 
   if(rr->element) return  0;  /* already resolved! */
   if(!rr->name)   return -2;  /* no chance! */
 
-  if (GST_IS_BIN (pipeline)){
-    bin = GST_BIN (pipeline);
+  if (__GST_IS_BIN (pipeline)){
+    bin = __GST_BIN (pipeline);
     rr->element = gst_bin_get_by_name_recurse_up (bin, rr->name);
   } else {
     rr->element = strcmp (GST_ELEMENT_NAME (pipeline), rr->name) == 0 ?
@@ -209,15 +209,15 @@ static void gst_parse_add_delayed_set (GstElement *element, gchar *name, gchar *
       gst_parse_free_delayed_set, (GConnectFlags) 0);
 
   /* FIXME: we would need to listen on all intermediate bins too */
-  if (GST_IS_BIN (element)) {
+  if (__GST_IS_BIN (element)) {
     gchar **names, **current;
     GstElement *parent, *child;
 
     current = names = g_strsplit (name, "::", -1);
-    parent = gst_bin_get_by_name (GST_BIN_CAST (element), current[0]);
+    parent = gst_bin_get_by_name (__GST_BIN_CAST (element), current[0]);
     current++;
     while (parent && current[0]) {
-      child = gst_bin_get_by_name (GST_BIN (parent), current[0]);
+      child = gst_bin_get_by_name (__GST_BIN (parent), current[0]);
       if (!child && current[1]) {
         char *sub_name = g_strjoinv ("::", &current[0]);
 
@@ -1078,9 +1078,9 @@ priv_gst_parse_launch (const gchar *str, GError **error, GstParseContext *ctx,
   /* put all elements in our bin if necessary */
   if(g.chain->elements->next){
     if (flags & GST_PARSE_FLAG_PLACE_IN_BIN)
-      bin = GST_BIN (gst_element_factory_make ("bin", NULL));
+      bin = __GST_BIN (gst_element_factory_make ("bin", NULL));
     else
-      bin = GST_BIN (gst_element_factory_make ("pipeline", NULL));
+      bin = __GST_BIN (gst_element_factory_make ("pipeline", NULL));
     g_assert (bin);
 
     for (walk = g.chain->elements; walk; walk = walk->next) {
@@ -1094,8 +1094,8 @@ priv_gst_parse_launch (const gchar *str, GError **error, GstParseContext *ctx,
   ret = (GstElement *) g.chain->elements->data;
   g_slist_free (g.chain->elements);
   g.chain->elements=NULL;
-  if (GST_IS_BIN (ret))
-    bin = GST_BIN (ret);
+  if (__GST_IS_BIN (ret))
+    bin = __GST_BIN (ret);
   gst_parse_free_chain (g.chain);
   g.chain = NULL;
 

diff --git a/tools/development/parser/types.c b/tools/development/parser/types.c
index 27ab4d6..b46a29c 100644 (file)
--- a/tools/development/parser/types.c
+++ b/tools/development/parser/types.c
@@ -119,3 +119,29 @@ nnstparser_element_from_uri (_URIType type, const gchar * uri,
   ret->refcount = 1;
   return ret;
 }
+
+/**
+ * @brief Substitutes GST's gst_bin_get_by_name ()
+ */
+_Element *
+nnstparser_bin_get_by_name (_Bin * bin, const gchar * name)
+{
+}
+
+/**
+ * @brief Substitutes GST's gst_bin_get_by_name_recurse_up ()
+ */
+_Element *
+nnstparser_bin_get_by_name_recurse_up (_Bin * bin, const gchar * name)
+{
+  _Element *result;
+
+  g_return_val_if_fail (__GST_IS_BIN (bin), NULL);
+  g_return_val_if_fail (name != NULL, NULL);
+
+  result = gst_bin_get_by_name (bin, name);
+
+  if (!result) {
+    ///////////////// WORKING HERE. May need to analyze gst object parent structure
+  }
+}

diff --git a/tools/development/parser/types.h b/tools/development/parser/types.h
index 5b58482..03747fb 100644 (file)
--- a/tools/development/parser/types.h
+++ b/tools/development/parser/types.h
@@ -14,6 +14,12 @@
 
 #include <glib-object.h>
 
+/** Define GST macro's substitutions */
+#define __GST_BIN(e) (((e)->id == oTI_GstBin && (e)->specialType == 0) ? \
+  (e) : NULL)
+#define __GST_IS_BIN(e) ((e)->id == oTI_GstBin)
+#define __GST_BIN_CAST(e) (e)
+
 typedef enum {
   eST_normal = 0,
   eST_URI_SINK,
@@ -129,43 +135,6 @@ struct _graph_t {
   _ParseFlags flags;
 };
 
-
-/**
- * Memory checking. Should probably be done with gsttrace stuff, but that
- * doesn't really work.
- * This is not safe from reentrance issues, but that doesn't matter as long as
- * we lock a mutex before parsing anyway.
- *
- * FIXME: Disable this for now for the above reasons
- */
-#if 0
-#ifdef GST_DEBUG_ENABLED
-#  define __GST_PARSE_TRACE
-#endif
-#endif
-
-#ifdef __GST_PARSE_TRACE
-G_GNUC_INTERNAL  gchar  *__gst_parse_strdup (gchar *org);
-G_GNUC_INTERNAL  void  __gst_parse_strfree (gchar *str);
-G_GNUC_INTERNAL  link_t *__gst_parse_link_new (void);
-G_GNUC_INTERNAL  void  __gst_parse_link_free (link_t *data);
-G_GNUC_INTERNAL  chain_t *__gst_parse_chain_new (void);
-G_GNUC_INTERNAL  void  __gst_parse_chain_free (chain_t *data);
-#  define gst_parse_strdup __gst_parse_strdup
-#  define gst_parse_strfree __gst_parse_strfree
-#  define gst_parse_link_new __gst_parse_link_new
-#  define gst_parse_link_free __gst_parse_link_free
-#  define gst_parse_chain_new __gst_parse_chain_new
-#  define gst_parse_chain_free __gst_parse_chain_free
-#else /* __GST_PARSE_TRACE */
-#  define gst_parse_strdup g_strdup
-#  define gst_parse_strfree g_free
-#  define gst_parse_link_new() g_slice_new0 (link_t)
-#  define gst_parse_link_free(l) g_slice_free (link_t, l)
-#  define gst_parse_chain_new() g_slice_new0 (chain_t)
-#  define gst_parse_chain_free(c) g_slice_free (chain_t, c)
-#endif /* __GST_PARSE_TRACE */
-
 /** @brief GST Parser's internal function imported */
 static inline void
 gst_parse_unescape (gchar *str)
@@ -220,4 +189,12 @@ G_GNUC_INTERNAL _Element *priv_gst_parse_launch (const gchar      * str,
                                                    _ParseContext  * ctx,
                                                    _ParseFlags      flags);
 
+/** @brief Substitutes GST's gst_bin_get_by_name () */
+_Element *
+nnstparser_bin_get_by_name (_Bin * bin, const gchar * name);
+
+/** @brief Substitutes GST's gst_bin_get_by_name_recurse_up () */
+_Element *
+nnstparser_bin_get_by_name_recurse_up (_Bin * bin, const gchar * name);
+
 #endif /* __GST_PARSE_TYPES_H__ */