From efda5ffd9a2993c36a38a36d1c8ab3123a1d43b0 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@gmail.com>
Date: Tue, 19 Dec 2000 16:36:10 +0000
Subject: [PATCH] Added API to dynamically create GstCaps and GstProps

Original commit message from CVS:
Added API to dynamically create GstCaps and GstProps
Changed typefind of mpeg1 to set the GstProps.
autoplugging now works again for mpeg1, whoohoo!
---
 gst/gstcaps.c     | 39 ++++++++++++++++++++++++++++++++-----
 gst/gstcaps.h     |  4 ++++
 gst/gstprops.c    | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 gst/gstprops.h    |  6 +++++-
 tests/Makefile.am |  2 +-
 5 files changed, 101 insertions(+), 7 deletions(-)

diff --git a/gst/gstcaps.c b/gst/gstcaps.c
index 9ddb335..db76863 100644
--- a/gst/gstcaps.c
+++ b/gst/gstcaps.c
@@ -19,6 +19,7 @@
 
 //#define DEBUG_ENABLED
 
+#include "gstdebug.h"
 #include "gstcaps.h"
 #include "gsttype.h"
 
@@ -68,6 +69,17 @@ gst_caps_new (gchar *mime)
   return caps;
 }
 
+GstCaps*
+gst_caps_new_with_props (gchar *mime, GstProps *props)
+{
+  GstCaps *caps;
+  
+  caps = gst_caps_new (mime);
+  caps->properties = props;
+
+  return caps;
+}
+
 /**
  * gst_caps_register:
  * @factory: the factory to register
@@ -101,6 +113,25 @@ gst_caps_register (GstCapsFactory *factory)
   return caps;
 }
 
+GstCaps*
+gst_caps_set_props (GstCaps *caps, GstProps *props)
+{
+  g_return_val_if_fail (caps != NULL, caps);
+  g_return_val_if_fail (props != NULL, caps);
+  g_return_val_if_fail (caps->properties == NULL, caps);
+
+  caps->properties = props;
+  
+  return caps;
+}
+
+GstProps*
+gst_caps_get_props (GstCaps *caps)
+{
+  g_return_val_if_fail (caps != NULL, caps);
+
+  return caps->properties;
+}
 
 /**
  * gst_caps_check_compatibility:
@@ -118,24 +149,22 @@ gst_caps_check_compatibility (GstCaps *fromcaps, GstCaps *tocaps)
   g_return_val_if_fail (tocaps != NULL, FALSE);
 	
   if (fromcaps->id != tocaps->id) {
-    //g_print ("gstcaps: mime types wrong\n");
+    DEBUG ("gstcaps: mime types wrong\n");
     return FALSE;
   }
 
   if (tocaps->properties) {
-    GstPropsEntry *entry = (GstPropsEntry *)tocaps->properties;
-
     if (fromcaps->properties) {
       return gst_props_check_compatibility (fromcaps->properties, tocaps->properties);
     }
     else {
-      //g_print ("gstcaps: no source caps\n");
+      DEBUG ("gstcaps: no source caps\n");
       return FALSE;
     }
   }
   else {
     // assume it accepts everything
-    //g_print ("gstcaps: no caps\n");
+    DEBUG ("gstcaps: no caps\n");
     return TRUE;
   }
 }
diff --git a/gst/gstcaps.h b/gst/gstcaps.h
index b564f7e..8f850c7 100644
--- a/gst/gstcaps.h
+++ b/gst/gstcaps.h
@@ -44,8 +44,12 @@ struct _GstCaps {
 void 		_gst_caps_initialize		(void);
 
 GstCaps*	gst_caps_new			(gchar *mime);
+GstCaps*	gst_caps_new_with_props		(gchar *mime, GstProps *props);
 GstCaps*	gst_caps_register		(GstCapsFactory *factory);
 
+GstCaps*	gst_caps_set_props		(GstCaps *caps, GstProps *props);
+GstProps*	gst_caps_get_props		(GstCaps *caps);
+
 gboolean 	gst_caps_check_compatibility 	(GstCaps *caps1, GstCaps *caps2);
 
 xmlNodePtr      gst_caps_save_thyself    	(GstCaps *caps, xmlNodePtr parent);
diff --git a/gst/gstprops.c b/gst/gstprops.c
index 8613dda..e430641 100644
--- a/gst/gstprops.c
+++ b/gst/gstprops.c
@@ -158,6 +158,63 @@ gst_props_register (GstPropsFactory factory)
   return props;
 }
 
+GstProps *
+gst_props_new (GstPropsFactoryEntry entry, ...)
+{
+  va_list var_args;
+  GstPropsFactoryEntry value;
+  gint i = 0;
+  gint size;
+  GstPropsFactoryEntry *factory;
+
+
+  size = 16;
+  factory = (GstPropsFactoryEntry *) g_malloc (size*sizeof(GstPropsFactoryEntry));
+
+  va_start (var_args, entry);
+
+  value = (GstPropsFactoryEntry) entry;
+
+  while (value) {
+    DEBUG ("%p\n", value);
+
+    factory[i++] = value;
+
+    if (i >= size) {
+      size += 16;
+      factory = (GstPropsFactoryEntry *) g_realloc (factory, size*sizeof(GstPropsFactoryEntry));
+    }
+
+    value = va_arg (var_args, GstPropsFactoryEntry);
+  }
+  factory[i++] = NULL;
+
+  return gst_props_register (factory);
+}
+
+GstProps*
+gst_props_merge (GstProps *props, GstProps *tomerge)
+{
+  GSList *merge_props;
+
+  g_return_val_if_fail (props != NULL, NULL);
+  g_return_val_if_fail (tomerge != NULL, NULL);
+
+  merge_props = tomerge->properties;
+
+  // FIXME do proper merging here...
+  while (merge_props) {
+    GstPropsEntry *entry = (GstPropsEntry *)merge_props->data;
+
+    props->properties = g_slist_insert_sorted (props->properties, entry, props_compare_func);
+	  
+    merge_props = g_slist_next (merge_props);
+  }
+
+  return props;
+}
+
+
 /* entry2 is always a list, entry1 never is */
 static gboolean
 gst_props_entry_check_list_compatibility (GstPropsEntry *entry1, GstPropsEntry *entry2)
diff --git a/gst/gstprops.h b/gst/gstprops.h
index 4bf45a1..4ab1293 100644
--- a/gst/gstprops.h
+++ b/gst/gstprops.h
@@ -53,7 +53,7 @@ typedef enum {
 
 
 struct _GstProps {
-  GSList *properties;		/* properties for this capability */
+  GSList *properties;		/* real properties for this property */
 };
 
 /* initialize the subsystem */
@@ -61,6 +61,10 @@ void 		_gst_props_initialize		(void);
 
 GstProps*	gst_props_register		(GstPropsFactory factory);
 
+GstProps*	gst_props_new			(GstPropsFactoryEntry entry, ...);
+
+GstProps*	gst_props_merge			(GstProps *props, GstProps *tomerge);
+
 gboolean 	gst_props_check_compatibility 	(GstProps *props1, GstProps *props2);
 
 xmlNodePtr 	gst_props_save_thyself 		(GstProps *props, xmlNodePtr parent);
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 7ae299f..019363d 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,4 +1,4 @@
-noinst_PROGRAMS = init loadall simplefake states caps queue registry paranoia rip mp3encode autoplug
+noinst_PROGRAMS = init loadall simplefake states caps queue registry paranoia rip mp3encode autoplug props
 
 LDADD = $(GLIB_LIBS) $(GTK_LIBS) $(top_builddir)/gst/libgst.la
 CFLAGS = -Wall
-- 
2.7.4