gstconnection.c \
gsttype.c \
gstcaps.c \
+ gstprops.c \
gstplugin.c \
gstutils.c \
gsttrace.c \
gstconnection.h \
gsttype.h \
gstcaps.h \
+ gstprops.h \
gstplugin.h \
gstutils.h \
gsttrace.h \
#include <gst/gstconnection.h>
#include <gst/gsttype.h>
#include <gst/gstcaps.h>
+#include <gst/gstprops.h>
#include <gst/gstplugin.h>
#include <gst/gstutils.h>
#include <gst/gsttrace.h>
//#define DEBUG_ENABLED
#include <stdarg.h>
-#include <gst/gstcapsprivate.h>
-
-static gboolean gst_caps_entry_check_compatibility (GstCapsEntry *entry1, GstCapsEntry *entry2);
-
+#include <gst/gst.h>
void
_gst_caps_initialize (void)
{
}
-
-static GstCapsEntry *
-gst_caps_create_entry (GstCapsFactory factory, gint *skipped)
-{
- GstCapsFactoryEntry tag;
- GstCapsEntry *entry;
- guint i=0;
-
- entry = g_new0 (GstCapsEntry, 1);
-
- tag = factory[i++];
- switch (GPOINTER_TO_INT (tag)) {
- case GST_CAPS_INT_ID:
- entry->capstype = GST_CAPS_INT_ID_NUM;
- entry->data.int_data = GPOINTER_TO_INT (factory[i++]);
- break;
- case GST_CAPS_INT_RANGE_ID:
- entry->capstype = GST_CAPS_INT_RANGE_ID_NUM;
- entry->data.int_range_data.min = GPOINTER_TO_INT (factory[i++]);
- entry->data.int_range_data.max = GPOINTER_TO_INT (factory[i++]);
- break;
- case GST_CAPS_FOURCC_ID:
- entry->capstype = GST_CAPS_FOURCC_ID_NUM;
- entry->data.fourcc_data = GPOINTER_TO_INT (factory[i++]);
- break;
- case GST_CAPS_LIST_ID:
- g_print("gstcaps: list not allowed in list\n");
- break;
- case GST_CAPS_BOOL_ID:
- entry->capstype = GST_CAPS_BOOL_ID_NUM;
- entry->data.bool_data = GPOINTER_TO_INT (factory[i++]);
- break;
- default:
- g_print("gstcaps: unknown caps id found\n");
- g_free (entry);
- entry = NULL;
- break;
- }
-
- *skipped = i;
-
- return entry;
-}
-
-
-static gint
-caps_compare_func (gconstpointer a,
- gconstpointer b)
-{
- GstCapsEntry *entry1 = (GstCapsEntry *)a;
- GstCapsEntry *entry2 = (GstCapsEntry *)b;
-
- return (entry1->propid - entry2->propid);
-}
-
/**
* gst_caps_register:
* @factory: the factory to register
gint i = 0;
guint16 typeid;
GstCaps *caps;
- gint skipped;
g_return_val_if_fail (factory != NULL, NULL);
g_return_val_if_fail (caps != NULL, NULL);
caps->id = typeid;
- caps->properties = NULL;
-
- tag = factory[i++];
-
- while (tag) {
- GQuark quark;
- GstCapsEntry *entry;
-
- quark = g_quark_from_string ((gchar *)tag);
-
- tag = factory[i];
- switch (GPOINTER_TO_INT (tag)) {
- case GST_CAPS_LIST_ID:
- {
- GstCapsEntry *list_entry;
-
- entry = g_new0 (GstCapsEntry, 1);
- entry->propid = quark;
- entry->capstype = GST_CAPS_LIST_ID_NUM;
- entry->data.list_data.entries = NULL;
-
- i++; // skip list tag
- tag = factory[i];
- while (tag) {
- list_entry = gst_caps_create_entry (&factory[i], &skipped);
- list_entry->propid = quark;
- i += skipped;
- tag = factory[i];
- entry->data.list_data.entries = g_list_prepend (entry->data.list_data.entries, list_entry);
- }
- entry->data.list_data.entries = g_list_reverse (entry->data.list_data.entries);
- i++; //skip NULL (list end)
- break;
- }
- default:
- {
- entry = gst_caps_create_entry (&factory[i], &skipped);
- entry->propid = quark;
- i += skipped;
- break;
- }
- }
- caps->properties = g_slist_insert_sorted (caps->properties, entry, caps_compare_func);
-
- tag = factory[i++];
- }
+ caps->properties = gst_props_register (&factory[i]);
return caps;
}
-static void
-gst_caps_dump_entry_func (GstCapsEntry *entry)
-{
- switch (entry->capstype) {
- case GST_CAPS_INT_ID_NUM:
- g_print("gstcaps: int %d\n", entry->data.int_data);
- break;
- case GST_CAPS_INT_RANGE_ID_NUM:
- g_print("gstcaps: int range %d %d\n",
- entry->data.int_range_data.min,
- entry->data.int_range_data.max);
- break;
- case GST_CAPS_FOURCC_ID_NUM:
- g_print("gstcaps: fourcc 0x%08x (%4.4s)\n", entry->data.fourcc_data, (gchar *)&entry->data.fourcc_data);
- break;
- case GST_CAPS_BOOL_ID_NUM:
- g_print("gstcaps: boolean %d\n", entry->data.bool_data);
- break;
- default:
- g_print("gstcaps: **illegal entry**\n");
- break;
- }
-}
-
-static void
-gst_caps_dump_list_func (gpointer entry,
- gpointer list_entry)
-{
- gst_caps_dump_entry_func ((GstCapsEntry *)entry);
-}
-
-static void
-gst_caps_dump_func (gpointer data,
- gpointer user_data)
-{
- GstCapsEntry *entry;
-
- entry = (GstCapsEntry *)data;
-
- g_print("gstcaps: property type \"%s\"\n", g_quark_to_string (entry->propid));
-
- switch (entry->capstype) {
- case GST_CAPS_LIST_ID_NUM:
- {
- g_print("gstcaps: list type (\n");
- g_list_foreach (entry->data.list_data.entries, gst_caps_dump_list_func, entry);
- g_print("gstcaps: )\n");
- break;
- }
- default:
- gst_caps_dump_entry_func (entry);
- break;
- }
-}
/**
* gst_caps_dump:
g_print("gstcaps: {\ngstcaps: mime type \"%d\"\n", caps->id);
- g_slist_foreach (caps->properties, gst_caps_dump_func, caps);
+ gst_props_dump (caps->properties);
+
g_print("gstcaps: }\n");
}
-/* entry2 is always a list, entry1 never is */
-static gboolean
-gst_caps_entry_check_list_compatibility (GstCapsEntry *entry1, GstCapsEntry *entry2)
-{
- GList *entrylist = entry2->data.list_data.entries;
- gboolean found = FALSE;
-
- while (entrylist && !found) {
- GstCapsEntry *entry = (GstCapsEntry *) entrylist->data;
-
- found |= gst_caps_entry_check_compatibility (entry1, entry);
-
- entrylist = g_list_next (entrylist);
- }
-
- return found;
-}
-
-static gboolean
-gst_caps_entry_check_compatibility (GstCapsEntry *entry1, GstCapsEntry *entry2)
-{
- DEBUG ("compare: %s %s\n", g_quark_to_string (entry1->propid),
- g_quark_to_string (entry2->propid));
- switch (entry1->capstype) {
- case GST_CAPS_LIST_ID_NUM:
- {
- GList *entrylist = entry1->data.list_data.entries;
- gboolean valid = TRUE; // innocent until proven guilty
-
- while (entrylist && valid) {
- GstCapsEntry *entry = (GstCapsEntry *) entrylist->data;
-
- valid &= gst_caps_entry_check_compatibility (entry, entry2);
-
- entrylist = g_list_next (entrylist);
- }
-
- return valid;
- }
- case GST_CAPS_INT_RANGE_ID_NUM:
- switch (entry2->capstype) {
- // a - b <---> a - c
- case GST_CAPS_INT_RANGE_ID_NUM:
- return (entry2->data.int_range_data.min <= entry1->data.int_range_data.min &&
- entry2->data.int_range_data.max >= entry1->data.int_range_data.max);
- case GST_CAPS_LIST_ID_NUM:
- return gst_caps_entry_check_list_compatibility (entry1, entry2);
- default:
- return FALSE;
- }
- break;
- case GST_CAPS_FOURCC_ID_NUM:
- switch (entry2->capstype) {
- // b <---> a
- case GST_CAPS_FOURCC_ID_NUM:
- return (entry2->data.fourcc_data == entry1->data.fourcc_data);
- // b <---> a,b,c
- case GST_CAPS_LIST_ID_NUM:
- return gst_caps_entry_check_list_compatibility (entry1, entry2);
- default:
- return FALSE;
- }
- break;
- case GST_CAPS_INT_ID_NUM:
- switch (entry2->capstype) {
- // b <---> a - d
- case GST_CAPS_INT_RANGE_ID_NUM:
- return (entry2->data.int_range_data.min <= entry1->data.int_data &&
- entry2->data.int_range_data.max >= entry1->data.int_data);
- // b <---> a
- case GST_CAPS_INT_ID_NUM:
- return (entry2->data.int_data == entry1->data.int_data);
- // b <---> a,b,c
- case GST_CAPS_LIST_ID_NUM:
- return gst_caps_entry_check_list_compatibility (entry1, entry2);
- default:
- return FALSE;
- }
- break;
- case GST_CAPS_BOOL_ID_NUM:
- switch (entry2->capstype) {
- // t <---> t
- case GST_CAPS_BOOL_ID_NUM:
- return (entry2->data.bool_data == entry1->data.bool_data);
- case GST_CAPS_LIST_ID_NUM:
- return gst_caps_entry_check_list_compatibility (entry1, entry2);
- default:
- return FALSE;
- }
- default:
- break;
- }
-
- return FALSE;
-}
/**
* gst_caps_check_compatibility:
gboolean
gst_caps_check_compatibility (GstCaps *fromcaps, GstCaps *tocaps)
{
- GSList *sourcelist;
- GSList *sinklist;
- gint missing = 0;
- gint more = 0;
- gboolean compatible = TRUE;
-
g_return_val_if_fail (fromcaps != NULL, FALSE);
g_return_val_if_fail (tocaps != NULL, FALSE);
if (fromcaps->id != tocaps->id)
return FALSE;
- sourcelist = fromcaps->properties;
- sinklist = tocaps->properties;
-
- while (sourcelist && sinklist && compatible) {
- GstCapsEntry *entry1;
- GstCapsEntry *entry2;
-
- entry1 = (GstCapsEntry *)sourcelist->data;
- entry2 = (GstCapsEntry *)sinklist->data;
-
- while (entry1->propid < entry2->propid) {
- DEBUG ("source is more specific in \"%s\"\n", g_quark_to_string (entry1->propid));
- more++;
- sourcelist = g_slist_next (sourcelist);
- if (sourcelist) entry1 = (GstCapsEntry *)sourcelist->data;
- else goto end;
- }
- while (entry1->propid > entry2->propid) {
- DEBUG ("source has missing property \"%s\"\n", g_quark_to_string (entry2->propid));
- missing++;
- sinklist = g_slist_next (sinklist);
- if (sinklist) entry2 = (GstCapsEntry *)sinklist->data;
- else goto end;
- }
-
- compatible &= gst_caps_entry_check_compatibility (entry1, entry2);
-
- sourcelist = g_slist_next (sourcelist);
- sinklist = g_slist_next (sinklist);
- }
-end:
-
- if (missing)
- return FALSE;
-
- return compatible;
+ return gst_props_check_compatibility (fromcaps->properties, tocaps->properties);
}
-/**
- * gst_caps_register_va:
- * @factory: the factories to register
- *
- * Register the given factories.
- *
- * Returns: A list of the registered factories
- */
-GList *
-gst_caps_register_va (GstCapsFactory factory, ...)
-{
- va_list var_args;
- GstCapsFactoryEntry *current_factory;
-
- va_start (var_args, factory);
-
- current_factory = (GstCapsFactoryEntry *) factory;
-
- while (current_factory) {
- gst_caps_register (current_factory);
-
- current_factory = va_arg (var_args, GstCapsFactoryEntry *);
- }
-
- va_end(var_args);
-
- return NULL;
-}
#ifndef __GST_CAPS_H__
#define __GST_CAPS_H__
-#include <gst/gst.h>
+#include <glib.h>
+#include <gst/gstprops.h>
typedef struct _GstCaps GstCaps;
typedef gpointer GstCapsFactoryEntry;
typedef GstCapsFactoryEntry GstCapsFactory[];
typedef GstCapsFactory *GstCapsListFactory[];
-typedef enum {
- GST_CAPS_END_ID_NUM = 0,
- GST_CAPS_LIST_ID_NUM,
- GST_CAPS_INT_ID_NUM,
- GST_CAPS_INT_RANGE_ID_NUM,
- GST_CAPS_FOURCC_ID_NUM,
- GST_CAPS_BOOL_ID_NUM,
-} GstCapsId;
-
-#define GST_CAPS_LIST_ID GINT_TO_POINTER(GST_CAPS_LIST_ID_NUM)
-#define GST_CAPS_INT_ID GINT_TO_POINTER(GST_CAPS_INT_ID_NUM)
-#define GST_CAPS_INT_RANGE_ID GINT_TO_POINTER(GST_CAPS_INT_RANGE_ID_NUM)
-#define GST_CAPS_FOURCC_ID GINT_TO_POINTER(GST_CAPS_FOURCC_ID_NUM)
-#define GST_CAPS_BOOL_ID GINT_TO_POINTER(GST_CAPS_BOOL_ID_NUM)
-
-#define GST_CAPS_LIST(a...) GST_CAPS_LIST_ID,##a,NULL
-#define GST_CAPS_INT(a) GST_CAPS_INT_ID,(GINT_TO_POINTER(a))
-#define GST_CAPS_INT_RANGE(a,b) GST_CAPS_INT_RANGE_ID,(GINT_TO_POINTER(a)),(GINT_TO_POINTER(b))
-#define GST_CAPS_FOURCC(a,b,c,d) GST_CAPS_FOURCC_ID,(GINT_TO_POINTER((a)|(b)<<8|(c)<<16|(d)<<24))
-#define GST_CAPS_FOURCC_INT(a) GST_CAPS_FOURCC_ID,(GINT_TO_POINTER(a))
-#define GST_CAPS_BOOLEAN(a) GST_CAPS_BOOL_ID,(GINT_TO_POINTER(a))
-
-
struct _GstCaps {
guint16 id; /* type id (major type) */
- GSList *properties; /* properties for this capability */
+ GstProps *properties; /* properties for this capability */
};
/* initialize the subsystem */
void _gst_caps_initialize (void);
GstCaps* gst_caps_register (GstCapsFactory factory);
-GList* gst_caps_register_va (GstCapsFactory factory,...);
void gst_caps_dump (GstCaps *caps);
+++ /dev/null
-/* Gnome-Streamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-
-#ifndef __GST_CAPS_PRIV_H__
-#define __GST_CAPS_PRIV_H__
-
-#include <gst/gstcaps.h>
-
-typedef struct _GstCapsEntry GstCapsEntry;
-
-struct _GstCapsEntry {
- GQuark propid;
- GstCapsId capstype;
-
- union {
- /* flat values */
- gboolean bool_data;
- guint32 fourcc_data;
- gint int_data;
-
- /* structured values */
- struct {
- GList *entries;
- } list_data;
- struct {
- gint min;
- gint max;
- } int_range_data;
- } data;
-};
-
-#endif /* __GST_CAPS_PRIV_H__ */
--- /dev/null
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+//#define DEBUG_ENABLED
+
+#include <stdarg.h>
+#include <gst/gst.h>
+#include <gst/gstpropsprivate.h>
+
+static gboolean gst_props_entry_check_compatibility (GstPropsEntry *entry1, GstPropsEntry *entry2);
+
+
+void
+_gst_props_initialize (void)
+{
+}
+
+static GstPropsEntry *
+gst_props_create_entry (GstPropsFactory factory, gint *skipped)
+{
+ GstPropsFactoryEntry tag;
+ GstPropsEntry *entry;
+ guint i=0;
+
+ entry = g_new0 (GstPropsEntry, 1);
+
+ tag = factory[i++];
+ switch (GPOINTER_TO_INT (tag)) {
+ case GST_PROPS_INT_ID:
+ entry->propstype = GST_PROPS_INT_ID_NUM;
+ entry->data.int_data = GPOINTER_TO_INT (factory[i++]);
+ break;
+ case GST_PROPS_INT_RANGE_ID:
+ entry->propstype = GST_PROPS_INT_RANGE_ID_NUM;
+ entry->data.int_range_data.min = GPOINTER_TO_INT (factory[i++]);
+ entry->data.int_range_data.max = GPOINTER_TO_INT (factory[i++]);
+ break;
+ case GST_PROPS_FOURCC_ID:
+ entry->propstype = GST_PROPS_FOURCC_ID_NUM;
+ entry->data.fourcc_data = GPOINTER_TO_INT (factory[i++]);
+ break;
+ case GST_PROPS_LIST_ID:
+ g_print("gstprops: list not allowed in list\n");
+ break;
+ case GST_PROPS_BOOL_ID:
+ entry->propstype = GST_PROPS_BOOL_ID_NUM;
+ entry->data.bool_data = GPOINTER_TO_INT (factory[i++]);
+ break;
+ default:
+ g_print("gstprops: unknown props id found\n");
+ g_free (entry);
+ entry = NULL;
+ break;
+ }
+
+ *skipped = i;
+
+ return entry;
+}
+
+
+static gint
+props_compare_func (gconstpointer a,
+ gconstpointer b)
+{
+ GstPropsEntry *entry1 = (GstPropsEntry *)a;
+ GstPropsEntry *entry2 = (GstPropsEntry *)b;
+
+ return (entry1->propid - entry2->propid);
+}
+
+/**
+ * gst_props_register:
+ * @factory: the factory to register
+ *
+ * Register the factory.
+ *
+ * Returns: The registered capability
+ */
+GstProps *
+gst_props_register (GstPropsFactory factory)
+{
+ GstPropsFactoryEntry tag;
+ gint i = 0;
+ GstProps *props;
+ gint skipped;
+
+ g_return_val_if_fail (factory != NULL, NULL);
+
+ props = g_new0 (GstProps, 1);
+ g_return_val_if_fail (props != NULL, NULL);
+
+ props->properties = NULL;
+
+ tag = factory[i++];
+
+ while (tag) {
+ GQuark quark;
+ GstPropsEntry *entry;
+
+ quark = g_quark_from_string ((gchar *)tag);
+
+ tag = factory[i];
+ switch (GPOINTER_TO_INT (tag)) {
+ case GST_PROPS_LIST_ID:
+ {
+ GstPropsEntry *list_entry;
+
+ entry = g_new0 (GstPropsEntry, 1);
+ entry->propid = quark;
+ entry->propstype = GST_PROPS_LIST_ID_NUM;
+ entry->data.list_data.entries = NULL;
+
+ i++; // skip list tag
+ tag = factory[i];
+ while (tag) {
+ list_entry = gst_props_create_entry (&factory[i], &skipped);
+ list_entry->propid = quark;
+ i += skipped;
+ tag = factory[i];
+ entry->data.list_data.entries = g_list_prepend (entry->data.list_data.entries, list_entry);
+ }
+ entry->data.list_data.entries = g_list_reverse (entry->data.list_data.entries);
+ i++; //skip NULL (list end)
+ break;
+ }
+ default:
+ {
+ entry = gst_props_create_entry (&factory[i], &skipped);
+ entry->propid = quark;
+ i += skipped;
+ break;
+ }
+ }
+ props->properties = g_slist_insert_sorted (props->properties, entry, props_compare_func);
+
+ tag = factory[i++];
+ }
+
+ return props;
+}
+
+static void
+gst_props_dump_entry_func (GstPropsEntry *entry)
+{
+ switch (entry->propstype) {
+ case GST_PROPS_INT_ID_NUM:
+ g_print("gstprops: int %d\n", entry->data.int_data);
+ break;
+ case GST_PROPS_INT_RANGE_ID_NUM:
+ g_print("gstprops: int range %d %d\n",
+ entry->data.int_range_data.min,
+ entry->data.int_range_data.max);
+ break;
+ case GST_PROPS_FOURCC_ID_NUM:
+ g_print("gstprops: fourcc 0x%08x (%4.4s)\n", entry->data.fourcc_data, (gchar *)&entry->data.fourcc_data);
+ break;
+ case GST_PROPS_BOOL_ID_NUM:
+ g_print("gstprops: boolean %d\n", entry->data.bool_data);
+ break;
+ default:
+ g_print("gstprops: **illegal entry**\n");
+ break;
+ }
+}
+
+static void
+gst_props_dump_list_func (gpointer entry,
+ gpointer list_entry)
+{
+ gst_props_dump_entry_func ((GstPropsEntry *)entry);
+}
+
+static void
+gst_props_dump_func (gpointer data,
+ gpointer user_data)
+{
+ GstPropsEntry *entry;
+
+ entry = (GstPropsEntry *)data;
+
+ g_print("gstprops: property type \"%s\"\n", g_quark_to_string (entry->propid));
+
+ switch (entry->propstype) {
+ case GST_PROPS_LIST_ID_NUM:
+ {
+ g_print("gstprops: list type (\n");
+ g_list_foreach (entry->data.list_data.entries, gst_props_dump_list_func, entry);
+ g_print("gstprops: )\n");
+ break;
+ }
+ default:
+ gst_props_dump_entry_func (entry);
+ break;
+ }
+}
+
+/**
+ * gst_props_dump:
+ * @props: the capability to dump
+ *
+ * Dumps the contents of the capabilty one the console
+ */
+void
+gst_props_dump (GstProps *props)
+{
+ g_return_if_fail (props != NULL);
+
+ g_print("gstprops: {\n");
+
+ g_slist_foreach (props->properties, gst_props_dump_func, props);
+ g_print("gstprops: }\n");
+}
+
+/* entry2 is always a list, entry1 never is */
+static gboolean
+gst_props_entry_check_list_compatibility (GstPropsEntry *entry1, GstPropsEntry *entry2)
+{
+ GList *entrylist = entry2->data.list_data.entries;
+ gboolean found = FALSE;
+
+ while (entrylist && !found) {
+ GstPropsEntry *entry = (GstPropsEntry *) entrylist->data;
+
+ found |= gst_props_entry_check_compatibility (entry1, entry);
+
+ entrylist = g_list_next (entrylist);
+ }
+
+ return found;
+}
+
+static gboolean
+gst_props_entry_check_compatibility (GstPropsEntry *entry1, GstPropsEntry *entry2)
+{
+ DEBUG ("compare: %s %s\n", g_quark_to_string (entry1->propid),
+ g_quark_to_string (entry2->propid));
+ switch (entry1->propstype) {
+ case GST_PROPS_LIST_ID_NUM:
+ {
+ GList *entrylist = entry1->data.list_data.entries;
+ gboolean valid = TRUE; // innocent until proven guilty
+
+ while (entrylist && valid) {
+ GstPropsEntry *entry = (GstPropsEntry *) entrylist->data;
+
+ valid &= gst_props_entry_check_compatibility (entry, entry2);
+
+ entrylist = g_list_next (entrylist);
+ }
+
+ return valid;
+ }
+ case GST_PROPS_INT_RANGE_ID_NUM:
+ switch (entry2->propstype) {
+ // a - b <---> a - c
+ case GST_PROPS_INT_RANGE_ID_NUM:
+ return (entry2->data.int_range_data.min <= entry1->data.int_range_data.min &&
+ entry2->data.int_range_data.max >= entry1->data.int_range_data.max);
+ case GST_PROPS_LIST_ID_NUM:
+ return gst_props_entry_check_list_compatibility (entry1, entry2);
+ default:
+ return FALSE;
+ }
+ break;
+ case GST_PROPS_FOURCC_ID_NUM:
+ switch (entry2->propstype) {
+ // b <---> a
+ case GST_PROPS_FOURCC_ID_NUM:
+ return (entry2->data.fourcc_data == entry1->data.fourcc_data);
+ // b <---> a,b,c
+ case GST_PROPS_LIST_ID_NUM:
+ return gst_props_entry_check_list_compatibility (entry1, entry2);
+ default:
+ return FALSE;
+ }
+ break;
+ case GST_PROPS_INT_ID_NUM:
+ switch (entry2->propstype) {
+ // b <---> a - d
+ case GST_PROPS_INT_RANGE_ID_NUM:
+ return (entry2->data.int_range_data.min <= entry1->data.int_data &&
+ entry2->data.int_range_data.max >= entry1->data.int_data);
+ // b <---> a
+ case GST_PROPS_INT_ID_NUM:
+ return (entry2->data.int_data == entry1->data.int_data);
+ // b <---> a,b,c
+ case GST_PROPS_LIST_ID_NUM:
+ return gst_props_entry_check_list_compatibility (entry1, entry2);
+ default:
+ return FALSE;
+ }
+ break;
+ case GST_PROPS_BOOL_ID_NUM:
+ switch (entry2->propstype) {
+ // t <---> t
+ case GST_PROPS_BOOL_ID_NUM:
+ return (entry2->data.bool_data == entry1->data.bool_data);
+ case GST_PROPS_LIST_ID_NUM:
+ return gst_props_entry_check_list_compatibility (entry1, entry2);
+ default:
+ return FALSE;
+ }
+ default:
+ break;
+ }
+
+ return FALSE;
+}
+
+/**
+ * gst_props_check_compatibility:
+ * @fromprops: a capabilty
+ * @toprops: a capabilty
+ *
+ * Checks whether two capabilities are compatible
+ *
+ * Returns: true if compatible, false otherwise
+ */
+gboolean
+gst_props_check_compatibility (GstProps *fromprops, GstProps *toprops)
+{
+ GSList *sourcelist;
+ GSList *sinklist;
+ gint missing = 0;
+ gint more = 0;
+ gboolean compatible = TRUE;
+
+ g_return_val_if_fail (fromprops != NULL, FALSE);
+ g_return_val_if_fail (toprops != NULL, FALSE);
+
+ sourcelist = fromprops->properties;
+ sinklist = toprops->properties;
+
+ while (sourcelist && sinklist && compatible) {
+ GstPropsEntry *entry1;
+ GstPropsEntry *entry2;
+
+ entry1 = (GstPropsEntry *)sourcelist->data;
+ entry2 = (GstPropsEntry *)sinklist->data;
+
+ while (entry1->propid < entry2->propid) {
+ DEBUG ("source is more specific in \"%s\"\n", g_quark_to_string (entry1->propid));
+ more++;
+ sourcelist = g_slist_next (sourcelist);
+ if (sourcelist) entry1 = (GstPropsEntry *)sourcelist->data;
+ else goto end;
+ }
+ while (entry1->propid > entry2->propid) {
+ DEBUG ("source has missing property \"%s\"\n", g_quark_to_string (entry2->propid));
+ missing++;
+ sinklist = g_slist_next (sinklist);
+ if (sinklist) entry2 = (GstPropsEntry *)sinklist->data;
+ else goto end;
+ }
+
+ compatible &= gst_props_entry_check_compatibility (entry1, entry2);
+
+ sourcelist = g_slist_next (sourcelist);
+ sinklist = g_slist_next (sinklist);
+ }
+end:
+
+ if (missing)
+ return FALSE;
+
+ return compatible;
+}
+
--- /dev/null
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_PROPS_H__
+#define __GST_PROPS_H__
+
+#include <glib.h>
+
+typedef struct _GstProps GstProps;
+typedef gpointer GstPropsFactoryEntry;
+typedef GstPropsFactoryEntry GstPropsFactory[];
+typedef GstPropsFactory *GstPropsListFactory[];
+
+typedef enum {
+ GST_PROPS_END_ID_NUM = 0,
+ GST_PROPS_LIST_ID_NUM,
+ GST_PROPS_INT_ID_NUM,
+ GST_PROPS_INT_RANGE_ID_NUM,
+ GST_PROPS_FOURCC_ID_NUM,
+ GST_PROPS_BOOL_ID_NUM,
+} GstPropsId;
+
+#define GST_PROPS_LIST_ID GINT_TO_POINTER(GST_PROPS_LIST_ID_NUM)
+#define GST_PROPS_INT_ID GINT_TO_POINTER(GST_PROPS_INT_ID_NUM)
+#define GST_PROPS_INT_RANGE_ID GINT_TO_POINTER(GST_PROPS_INT_RANGE_ID_NUM)
+#define GST_PROPS_FOURCC_ID GINT_TO_POINTER(GST_PROPS_FOURCC_ID_NUM)
+#define GST_PROPS_BOOL_ID GINT_TO_POINTER(GST_PROPS_BOOL_ID_NUM)
+
+#define GST_PROPS_LIST(a...) GST_PROPS_LIST_ID,##a,NULL
+#define GST_PROPS_INT(a) GST_PROPS_INT_ID,(GINT_TO_POINTER(a))
+#define GST_PROPS_INT_RANGE(a,b) GST_PROPS_INT_RANGE_ID,(GINT_TO_POINTER(a)),(GINT_TO_POINTER(b))
+#define GST_PROPS_FOURCC(a,b,c,d) GST_PROPS_FOURCC_ID,(GINT_TO_POINTER((a)|(b)<<8|(c)<<16|(d)<<24))
+#define GST_PROPS_FOURCC_INT(a) GST_PROPS_FOURCC_ID,(GINT_TO_POINTER(a))
+#define GST_PROPS_BOOLEAN(a) GST_PROPS_BOOL_ID,(GINT_TO_POINTER(a))
+
+
+struct _GstProps {
+ GSList *properties; /* properties for this capability */
+};
+
+/* initialize the subsystem */
+void _gst_props_initialize (void);
+
+GstProps* gst_props_register (GstPropsFactory factory);
+
+void gst_props_dump (GstProps *props);
+
+gboolean gst_props_check_compatibility (GstProps *props1, GstProps *props2);
+
+#endif /* __GST_PROPS_H__ */
--- /dev/null
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_PROPS_PRIV_H__
+#define __GST_PROPS_PRIV_H__
+
+#include <gst/gstprops.h>
+
+typedef struct _GstPropsEntry GstPropsEntry;
+
+struct _GstPropsEntry {
+ GQuark propid;
+ GstPropsId propstype;
+
+ union {
+ /* flat values */
+ gboolean bool_data;
+ guint32 fourcc_data;
+ gint int_data;
+
+ /* structured values */
+ struct {
+ GList *entries;
+ } list_data;
+ struct {
+ gint min;
+ gint max;
+ } int_range_data;
+ } data;
+};
+
+#endif /* __GST_PROPS_PRIV_H__ */
projects / platform / upstream / gstreamer.git / commitdiff