/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- * 2000 Wim Taymans <wtay@chello.be>
+ * 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstprops.c: Properties subsystem for generic usage
*
* Boston, MA 02111-1307, USA.
*/
-//#define GST_DEBUG_ENABLED
+/* #define GST_DEBUG_ENABLED */
#include "gst_private.h"
+#include "gstlog.h"
#include "gstprops.h"
-#include "gstpropsprivate.h"
+GType _gst_props_type;
+
+#define GST_PROPS_ENTRY_IS_VARIABLE(a) (((GstPropsEntry*)(a))->propstype > GST_PROPS_VAR_TYPE)
+
+struct _GstPropsEntry {
+ GQuark propid;
+ GstPropsType propstype;
+
+ union {
+ /* flat values */
+ gboolean bool_data;
+ guint32 fourcc_data;
+ gint int_data;
+ gfloat float_data;
+
+ /* structured values */
+ struct {
+ GList *entries;
+ } list_data;
+ struct {
+ gchar *string;
+ } string_data;
+ struct {
+ gint min;
+ gint max;
+ } int_range_data;
+ struct {
+ gfloat min;
+ gfloat max;
+ } float_range_data;
+ } data;
+};
+
+static GMemChunk *_gst_props_entries_chunk;
+static GMutex *_gst_props_entries_chunk_lock;
+
+static GMemChunk *_gst_props_chunk;
+static GMutex *_gst_props_chunk_lock;
static gboolean gst_props_entry_check_compatibility (GstPropsEntry *entry1, GstPropsEntry *entry2);
-
-static guint _arg_len[] = {
- 0, // GST_PROPS_END_ID_NUM = 0,
- 0, // GST_PROPS_LIST_ID_NUM,
- 1, // GST_PROPS_INT_ID_NUM,
- 2, // GST_PROPS_INT_RANGE_ID_NUM,
- 1, // GST_PROPS_FOURCC_ID_NUM,
- 1, // GST_PROPS_BOOL_ID_NUM,
-};
+static GList* gst_props_list_copy (GList *propslist);
+
+static void
+transform_func (const GValue *src_value,
+ GValue *dest_value)
+{
+ GstProps *props = g_value_peek_pointer (src_value);
+ GString *result = g_string_new ("");
+ GList *propslist = props->properties;
+ while (propslist) {
+ GstPropsEntry *entry = (GstPropsEntry *)propslist->data;
+ const gchar *name = g_quark_to_string (entry->propid);
+
+ switch (entry->propstype) {
+ case GST_PROPS_STRING_TYPE:
+ g_string_append_printf (result, "%s='%s'", name, entry->data.string_data.string);
+ default:
+ break;
+ }
+
+ propslist = g_list_next (propslist);
+ if (propslist) {
+ g_string_append (result, "; ");
+ }
+ }
+ dest_value->data[0].v_pointer = result->str;
+}
+
+
void
_gst_props_initialize (void)
{
+ _gst_props_entries_chunk = g_mem_chunk_new ("GstPropsEntries",
+ sizeof (GstPropsEntry), sizeof (GstPropsEntry) * 256,
+ G_ALLOC_AND_FREE);
+ _gst_props_entries_chunk_lock = g_mutex_new ();
+
+ _gst_props_chunk = g_mem_chunk_new ("GstProps",
+ sizeof (GstProps), sizeof (GstProps) * 256,
+ G_ALLOC_AND_FREE);
+ _gst_props_chunk_lock = g_mutex_new ();
+
+ _gst_props_type = g_boxed_type_register_static ("GstProps",
+ (GBoxedCopyFunc) gst_props_ref,
+ (GBoxedFreeFunc) gst_props_unref);
+
+ g_value_register_transform_func (_gst_props_type,
+ G_TYPE_STRING,
+ transform_func);
}
-static GstPropsEntry *
-gst_props_create_entry (GstPropsFactory factory, gint *skipped)
+static void
+gst_props_debug_entry (GstPropsEntry *entry)
{
- GstPropsFactoryEntry tag;
- GstPropsEntry *entry;
- guint i=0;
-
- entry = g_new0 (GstPropsEntry, 1);
+ const gchar *name = g_quark_to_string (entry->propid);
- 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++]);
+ switch (entry->propstype) {
+ case GST_PROPS_INT_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: int %d", name, entry->data.int_data);
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++]);
+ case GST_PROPS_FLOAT_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: float %f", name, entry->data.float_data);
break;
- case GST_PROPS_FOURCC_ID:
- entry->propstype = GST_PROPS_FOURCC_ID_NUM;
- entry->data.fourcc_data = GPOINTER_TO_INT (factory[i++]);
+ case GST_PROPS_FOURCC_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: fourcc %4.4s", name, (gchar*)&entry->data.fourcc_data);
break;
- case GST_PROPS_LIST_ID:
- g_print("gstprops: list not allowed in list\n");
+ case GST_PROPS_BOOL_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: bool %d", name, entry->data.bool_data);
break;
- case GST_PROPS_BOOL_ID:
- entry->propstype = GST_PROPS_BOOL_ID_NUM;
- entry->data.bool_data = GPOINTER_TO_INT (factory[i++]);
+ case GST_PROPS_STRING_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: string \"%s\"", name, entry->data.string_data.string);
+ break;
+ case GST_PROPS_INT_RANGE_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: int range %d-%d", name, entry->data.int_range_data.min,
+ entry->data.int_range_data.max);
+ break;
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s: float range %f-%f", name, entry->data.float_range_data.min,
+ entry->data.float_range_data.max);
+ break;
+ case GST_PROPS_LIST_TYPE:
+ GST_DEBUG (GST_CAT_PROPERTIES, "[list]");
+ {
+ GList *entries = entry->data.list_data.entries;
+
+ while (entries) {
+ gst_props_debug_entry ((GstPropsEntry *)entries->data);
+ entries = g_list_next (entries);
+ }
+ }
break;
default:
- g_print("gstprops: unknown props id found\n");
- g_free (entry);
- entry = NULL;
+ g_warning ("unknown property type %d", entry->propstype);
+ break;
+ }
+}
+
+static gint
+props_compare_func (gconstpointer a,
+ gconstpointer b)
+{
+ GstPropsEntry *entry1 = (GstPropsEntry *)a;
+ GstPropsEntry *entry2 = (GstPropsEntry *)b;
+
+ return (entry1->propid - entry2->propid);
+}
+
+static gint
+props_find_func (gconstpointer a,
+ gconstpointer b)
+{
+ GstPropsEntry *entry2 = (GstPropsEntry *)a;
+ GQuark quark = (GQuark) GPOINTER_TO_INT (b);
+
+ return (quark - entry2->propid);
+}
+
+/* This is implemented as a huge macro because we cannot pass
+ * va_list variables by reference on some architectures.
+ */
+#define GST_PROPS_ENTRY_FILL(entry, var_args) \
+G_STMT_START { \
+ entry->propstype = va_arg (var_args, GstPropsType); \
+ \
+ switch (entry->propstype) { \
+ case GST_PROPS_INT_TYPE: \
+ entry->data.int_data = va_arg (var_args, gint); \
+ break; \
+ case GST_PROPS_INT_RANGE_TYPE: \
+ entry->data.int_range_data.min = va_arg (var_args, gint); \
+ entry->data.int_range_data.max = va_arg (var_args, gint); \
+ break; \
+ case GST_PROPS_FLOAT_TYPE: \
+ entry->data.float_data = va_arg (var_args, gdouble); \
+ break; \
+ case GST_PROPS_FLOAT_RANGE_TYPE: \
+ entry->data.float_range_data.min = va_arg (var_args, gdouble); \
+ entry->data.float_range_data.max = va_arg (var_args, gdouble); \
+ break; \
+ case GST_PROPS_FOURCC_TYPE: \
+ entry->data.fourcc_data = va_arg (var_args, gulong); \
+ break; \
+ case GST_PROPS_BOOL_TYPE: \
+ entry->data.bool_data = va_arg (var_args, gboolean); \
+ break; \
+ case GST_PROPS_STRING_TYPE: \
+ entry->data.string_data.string = g_strdup (va_arg (var_args, gchar*)); \
+ break; \
+ case GST_PROPS_GLIST_TYPE: \
+ entry->propstype = GST_PROPS_LIST_TYPE; \
+ entry->data.list_data.entries = g_list_copy (va_arg (var_args, GList*)); \
+ break; \
+ default: \
+ break; \
+ } \
+} G_STMT_END
+
+
+#define GST_PROPS_ENTRY_READ(entry, var_args, safe, result) \
+G_STMT_START { \
+ \
+ *result = TRUE; \
+ \
+ if (safe) { \
+ GstPropsType propstype = va_arg (var_args, GstPropsType); \
+ if (propstype != entry->propstype) { \
+ *result = FALSE; \
+ } \
+ } \
+ if (*result) { \
+ switch (entry->propstype) { \
+ case GST_PROPS_INT_TYPE: \
+ *(va_arg (var_args, gint*)) = entry->data.int_data; \
+ break; \
+ case GST_PROPS_INT_RANGE_TYPE: \
+ *(va_arg (var_args, gint*)) = entry->data.int_range_data.min; \
+ *(va_arg (var_args, gint*)) = entry->data.int_range_data.max; \
+ break; \
+ case GST_PROPS_FLOAT_TYPE: \
+ *(va_arg (var_args, gfloat*)) = entry->data.float_data; \
+ break; \
+ case GST_PROPS_FLOAT_RANGE_TYPE: \
+ *(va_arg (var_args, gfloat*)) = entry->data.float_range_data.min; \
+ *(va_arg (var_args, gfloat*)) = entry->data.float_range_data.max; \
+ break; \
+ case GST_PROPS_FOURCC_TYPE: \
+ *(va_arg (var_args, guint32*)) = entry->data.fourcc_data; \
+ break; \
+ case GST_PROPS_BOOL_TYPE: \
+ *(va_arg (var_args, gboolean*)) = entry->data.bool_data; \
+ break; \
+ case GST_PROPS_STRING_TYPE: \
+ *(va_arg (var_args, gchar**)) = entry->data.string_data.string; \
+ break; \
+ case GST_PROPS_LIST_TYPE: \
+ *(va_arg (var_args, GList**)) = entry->data.list_data.entries; \
+ break; \
+ default: \
+ *result = FALSE; \
+ break; \
+ } \
+ } \
+} G_STMT_END
+
+static GstPropsEntry*
+gst_props_alloc_entry (void)
+{
+ GstPropsEntry *entry;
+
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ entry = g_mem_chunk_alloc (_gst_props_entries_chunk);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+
+ return entry;
+}
+
+static void
+gst_props_entry_destroy (GstPropsEntry *entry)
+{
+ switch (entry->propstype) {
+ case GST_PROPS_STRING_TYPE:
+ g_free (entry->data.string_data.string);
+ break;
+ case GST_PROPS_LIST_TYPE:
+ {
+ GList *entries = entry->data.list_data.entries;
+
+ while (entries) {
+ gst_props_entry_destroy ((GstPropsEntry *)entries->data);
+ entries = g_list_next (entries);
+ }
+ g_list_free (entry->data.list_data.entries);
break;
+ }
+ default:
+ break;
+ }
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ g_mem_chunk_free (_gst_props_entries_chunk, entry);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+}
+
+/**
+ * gst_props_empty_new:
+ *
+ * Create a new empty property.
+ *
+ * Returns: the new property
+ */
+GstProps*
+gst_props_empty_new (void)
+{
+ GstProps *props;
+
+ g_mutex_lock (_gst_props_chunk_lock);
+ props = g_mem_chunk_alloc (_gst_props_chunk);
+ g_mutex_unlock (_gst_props_chunk_lock);
+
+ props->properties = NULL;
+ props->refcount = 1;
+ props->fixed = TRUE;
+
+ return props;
+}
+
+/**
+ * gst_props_add_entry:
+ * @props: the property to add the entry to
+ * @entry: the entry to add
+ *
+ * Addes the given propsentry to the props
+ */
+void
+gst_props_add_entry (GstProps *props, GstPropsEntry *entry)
+{
+ g_return_if_fail (props);
+ g_return_if_fail (entry);
+
+ if (props->fixed && GST_PROPS_ENTRY_IS_VARIABLE (entry)) {
+ props->fixed = FALSE;
+ }
+ props->properties = g_list_insert_sorted (props->properties, entry, props_compare_func);
+}
+
+/**
+ * gst_props_new:
+ * @firstname: the first property name
+ * @...: the property values
+ *
+ * Create a new property from the given key/value pairs
+ *
+ * Returns: the new property
+ */
+GstProps*
+gst_props_new (const gchar *firstname, ...)
+{
+ GstProps *props;
+ va_list var_args;
+
+ va_start (var_args, firstname);
+
+ props = gst_props_newv (firstname, var_args);
+
+ va_end (var_args);
+
+ return props;
+}
+
+
+/**
+ * gst_props_debug:
+ * @props: the props to debug
+ *
+ * Dump the contents of the given properties into the DEBUG log.
+ */
+void
+gst_props_debug (GstProps *props)
+{
+ GList *propslist = props->properties;
+
+ while (propslist) {
+ GstPropsEntry *entry = (GstPropsEntry *)propslist->data;
+
+ gst_props_debug_entry (entry);
+
+ propslist = g_list_next (propslist);
+ }
+}
+
+/**
+ * gst_props_merge_int_entries:
+ * @newentry: the new entry
+ * @oldentry: an old entry
+ *
+ * Tries to merge oldentry into newentry, if there is a simpler single entry which represents
+ *
+ * Assumes that the entries are either ints or int ranges.
+ *
+ * Returns: TRUE if the entries were merged, FALSE otherwise.
+ */
+static gboolean
+gst_props_merge_int_entries(GstPropsEntry * newentry, GstPropsEntry * oldentry)
+{
+ gint new_min, new_max, old_min, old_max;
+ gboolean can_merge = FALSE;
+
+ if (newentry->propstype == GST_PROPS_INT_TYPE) {
+ new_min = newentry->data.int_data;
+ new_max = newentry->data.int_data;
+ } else {
+ new_min = newentry->data.int_range_data.min;
+ new_max = newentry->data.int_range_data.max;
+ }
+
+ if (oldentry->propstype == GST_PROPS_INT_TYPE) {
+ old_min = oldentry->data.int_data;
+ old_max = oldentry->data.int_data;
+ } else {
+ old_min = oldentry->data.int_range_data.min;
+ old_max = oldentry->data.int_range_data.max;
+ }
+
+ /* Put range which starts lower into (new_min, new_max) */
+ if (old_min < new_min) {
+ gint tmp;
+ tmp = old_min;
+ old_min = new_min;
+ new_min = tmp;
+ tmp = old_max;
+ old_max = new_max;
+ new_max = tmp;
+ }
+
+ /* new_min is min of either entry - second half of the following conditional */
+ /* is to avoid overflow problems. */
+ if (new_max >= old_min - 1 && old_min - 1 < old_min) {
+ /* ranges overlap, or are adjacent. Pick biggest maximum. */
+ can_merge = TRUE;
+ if (old_max > new_max) new_max = old_max;
+ }
+
+ if (can_merge) {
+ if (new_min == new_max) {
+ newentry->propstype = GST_PROPS_INT_TYPE;
+ newentry->data.int_data = new_min;
+ } else {
+ newentry->propstype = GST_PROPS_INT_RANGE_TYPE;
+ newentry->data.int_range_data.min = new_min;
+ newentry->data.int_range_data.max = new_max;
+ }
+ }
+ return can_merge;
+}
+
+/**
+ * gst_props_add_to_int_list:
+ * @entries: the existing list of entries
+ * @entry: the new entry to add to the list
+ *
+ * Add an integer property to a list of properties, removing duplicates
+ * and merging ranges.
+ *
+ * Assumes that the existing list is in simplest form, contains
+ * only ints and int ranges, and that the new entry is an int or
+ * an int range.
+ *
+ * Returns: a pointer to a list with the new entry added.
+ */
+static GList *
+gst_props_add_to_int_list (GList * entries, GstPropsEntry * newentry)
+{
+ GList * i;
+
+ i = entries;
+ while (i) {
+ GstPropsEntry * oldentry = (GstPropsEntry *)(i->data);
+ gboolean merged = gst_props_merge_int_entries(newentry, oldentry);
+
+ if (merged) {
+ /* replace the existing one with the merged one */
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ g_mem_chunk_free (_gst_props_entries_chunk, oldentry);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+ entries = g_list_remove_link (entries, i);
+ g_list_free_1 (i);
+
+ /* start again: it's possible that this change made an earlier entry */
+ /* mergeable, and the pointer is now invalid anyway. */
+ i = entries;
+ }
+
+ i = g_list_next (i);
}
- *skipped = i;
+ return g_list_prepend (entries, newentry);
+}
+
+static GstPropsEntry*
+gst_props_entry_newv (const gchar *name, va_list var_args)
+{
+ GstPropsEntry *entry;
+
+ entry = gst_props_alloc_entry ();
+ entry->propid = g_quark_from_string (name);
+ GST_PROPS_ENTRY_FILL (entry, var_args);
return entry;
}
-
-static gint
-props_compare_func (gconstpointer a,
- gconstpointer b)
+/**
+ * gst_props_entry_new:
+ * @name: the name of the props entry
+ * @...: the value of the entry
+ *
+ * Create a new property entry with the given key/value.
+ *
+ * Returns: the new entry.
+ */
+GstPropsEntry*
+gst_props_entry_new (const gchar *name, ...)
+{
+ va_list var_args;
+ GstPropsEntry *entry;
+
+ va_start (var_args, name);
+ entry = gst_props_entry_newv (name, var_args);
+ va_end (var_args);
+
+ return entry;
+}
+
+/**
+ * gst_props_newv:
+ * @firstname: the first property name
+ * @var_args: the property values
+ *
+ * Create a new property from the list of entries.
+ *
+ * Returns: the new property created from the list of entries
+ */
+GstProps*
+gst_props_newv (const gchar *firstname, va_list var_args)
+{
+ GstProps *props;
+ gboolean inlist = FALSE;
+ const gchar *prop_name;
+ GstPropsEntry *list_entry = NULL;
+
+ typedef enum {
+ GST_PROPS_LIST_T_UNSET,
+ GST_PROPS_LIST_T_INTS,
+ GST_PROPS_LIST_T_FLOATS,
+ GST_PROPS_LIST_T_MISC,
+ } list_types;
+
+ /* type of the list */
+ list_types list_type = GST_PROPS_LIST_T_UNSET;
+ /* type of current item */
+ list_types entry_type = GST_PROPS_LIST_T_UNSET;
+
+ if (firstname == NULL)
+ return NULL;
+
+ props = gst_props_empty_new ();
+
+ prop_name = firstname;
+
+ /* properties */
+ while (prop_name) {
+ GstPropsEntry *entry;
+
+ entry = gst_props_alloc_entry ();
+ entry->propid = g_quark_from_string (prop_name);
+ GST_PROPS_ENTRY_FILL (entry, var_args);
+
+ switch (entry->propstype) {
+ case GST_PROPS_INT_TYPE:
+ case GST_PROPS_INT_RANGE_TYPE:
+ entry_type = GST_PROPS_LIST_T_INTS;
+ break;
+ case GST_PROPS_FLOAT_TYPE:
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ entry_type = GST_PROPS_LIST_T_FLOATS;
+ break;
+ case GST_PROPS_FOURCC_TYPE:
+ case GST_PROPS_BOOL_TYPE:
+ case GST_PROPS_STRING_TYPE:
+ entry_type = GST_PROPS_LIST_T_MISC;
+ break;
+ case GST_PROPS_LIST_TYPE:
+ g_return_val_if_fail (inlist == FALSE, NULL);
+ inlist = TRUE;
+ list_entry = entry;
+ list_type = GST_PROPS_LIST_T_UNSET;
+ list_entry->data.list_data.entries = NULL;
+ break;
+ case GST_PROPS_END_TYPE:
+ g_return_val_if_fail (inlist == TRUE, NULL);
+
+ /* if list was of size 1, replace the list by a the item it contains */
+ if (g_list_length(list_entry->data.list_data.entries) == 1) {
+ GstPropsEntry * subentry = (GstPropsEntry *)(list_entry->data.list_data.entries->data);
+ list_entry->propstype = subentry->propstype;
+ list_entry->data = subentry->data;
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ g_mem_chunk_free (_gst_props_entries_chunk, subentry);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+ }
+ else {
+ list_entry->data.list_data.entries =
+ g_list_reverse (list_entry->data.list_data.entries);
+ }
+
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ g_mem_chunk_free (_gst_props_entries_chunk, entry);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+ inlist = FALSE;
+ list_entry = NULL;
+ prop_name = va_arg (var_args, gchar*);
+ continue;
+ default:
+ g_warning ("unknown property type found %d for '%s'\n", entry->propstype, prop_name);
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ g_mem_chunk_free (_gst_props_entries_chunk, entry);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+ break;
+ }
+
+ if (inlist && (list_entry != entry)) {
+ if (list_type == GST_PROPS_LIST_T_UNSET) list_type = entry_type;
+ if (list_type != entry_type) {
+ g_warning ("property list contained incompatible entry types\n");
+ } else {
+ switch (list_type) {
+ case GST_PROPS_LIST_T_INTS:
+ list_entry->data.list_data.entries =
+ gst_props_add_to_int_list (list_entry->data.list_data.entries, entry);
+ break;
+ default:
+ list_entry->data.list_data.entries =
+ g_list_prepend (list_entry->data.list_data.entries, entry);
+ break;
+ }
+ }
+ }
+ else {
+ gst_props_add_entry (props, entry);
+ }
+ if (!inlist)
+ prop_name = va_arg (var_args, gchar*);
+ }
+
+ return props;
+}
+
+/**
+ * gst_props_set:
+ * @props: the props to modify
+ * @name: the name of the entry to modify
+ * @...: The prop entry.
+ *
+ * Modifies the value of the given entry in the props struct.
+ * For the optional args, use GST_PROPS_FOO, where FOO is INT,
+ * STRING, etc. This macro expands to a variable number of arguments,
+ * hence the lack of precision in the function prototype. No
+ * terminating NULL is necessary as only one property can be changed.
+ *
+ * Returns: the new modified property structure.
+ */
+GstProps*
+gst_props_set (GstProps *props, const gchar *name, ...)
+{
+ GQuark quark;
+ GList *lentry;
+ va_list var_args;
+
+ g_return_val_if_fail (props != NULL, NULL);
+
+ quark = g_quark_from_string (name);
+
+ lentry = g_list_find_custom (props->properties, GINT_TO_POINTER (quark), props_find_func);
+
+ if (lentry) {
+ GstPropsEntry *entry;
+
+ entry = (GstPropsEntry *)lentry->data;
+
+ va_start (var_args, name);
+
+ GST_PROPS_ENTRY_FILL (entry, var_args);
+
+ va_end (var_args);
+ }
+ else {
+ g_warning ("gstprops: no property '%s' to change\n", name);
+ }
+
+ return props;
+}
+
+
+/**
+ * gst_props_unref:
+ * @props: the props to unref
+ *
+ * Decrease the refcount of the property structure, destroying
+ * the property if the refcount is 0.
+ */
+void
+gst_props_unref (GstProps *props)
+{
+ if (props == NULL)
+ return;
+
+ props->refcount--;
+
+ if (props->refcount == 0)
+ gst_props_destroy (props);
+}
+
+/**
+ * gst_props_ref:
+ * @props: the props to ref
+ *
+ * Increase the refcount of the property structure.
+ */
+void
+gst_props_ref (GstProps *props)
+{
+ g_return_if_fail (props != NULL);
+
+ props->refcount++;
+}
+
+
+/**
+ * gst_props_destroy:
+ * @props: the props to destroy
+ *
+ * Destroy the property, freeing all the memory that
+ * was allocated.
+ */
+void
+gst_props_destroy (GstProps *props)
+{
+ GList *entries;
+
+ if (props == NULL)
+ return;
+
+ entries = props->properties;
+
+ while (entries) {
+ gst_props_entry_destroy ((GstPropsEntry *)entries->data);
+ entries = g_list_next (entries);
+ }
+ g_list_free (props->properties);
+
+ g_mutex_lock (_gst_props_chunk_lock);
+ g_mem_chunk_free (_gst_props_chunk, props);
+ g_mutex_unlock (_gst_props_chunk_lock);
+}
+
+/*
+ * copy entries
+ */
+static GstPropsEntry*
+gst_props_entry_copy (GstPropsEntry *entry)
+{
+ GstPropsEntry *newentry;
+
+ newentry = gst_props_alloc_entry ();
+ memcpy (newentry, entry, sizeof (GstPropsEntry));
+ if (entry->propstype == GST_PROPS_LIST_TYPE) {
+ newentry->data.list_data.entries = gst_props_list_copy (entry->data.list_data.entries);
+ }
+ else if (entry->propstype == GST_PROPS_STRING_TYPE) {
+ newentry->data.string_data.string = g_strdup (entry->data.string_data.string);
+ }
+
+ return newentry;
+}
+
+static GList*
+gst_props_list_copy (GList *propslist)
+{
+ GList *new = NULL;
+
+ while (propslist) {
+ GstPropsEntry *entry = (GstPropsEntry *)propslist->data;
+
+ new = g_list_prepend (new, gst_props_entry_copy (entry));
+
+ propslist = g_list_next (propslist);
+ }
+ new = g_list_reverse (new);
+
+ return new;
+}
+
+/**
+ * gst_props_copy:
+ * @props: the props to copy
+ *
+ * Copy the property structure.
+ *
+ * Returns: the new property that is a copy of the original
+ * one.
+ */
+GstProps*
+gst_props_copy (GstProps *props)
+{
+ GstProps *new;
+
+ if (props == NULL)
+ return NULL;
+
+ new = gst_props_empty_new ();
+ new->properties = gst_props_list_copy (props->properties);
+ new->fixed = props->fixed;
+
+ return new;
+}
+
+/**
+ * gst_props_copy_on_write:
+ * @props: the props to copy on write
+ *
+ * Copy the property structure if the refcount is >1.
+ *
+ * Returns: A new props that can be safely written to.
+ */
+GstProps*
+gst_props_copy_on_write (GstProps *props)
+{
+ GstProps *new = props;;
+
+ g_return_val_if_fail (props != NULL, NULL);
+
+ if (props->refcount > 1) {
+ new = gst_props_copy (props);
+ gst_props_unref (props);
+ }
+
+ return new;
+}
+
+/**
+ * gst_props_get_entry:
+ * @props: the props to query
+ * @name: the name of the entry to get
+ *
+ * Get the props entry with the geven name
+ *
+ * Returns: The props entry with the geven name or NULL when
+ * the entry was not found.
+ */
+const GstPropsEntry*
+gst_props_get_entry (GstProps *props, const gchar *name)
+{
+ GList *lentry;
+ GQuark quark;
+
+ g_return_val_if_fail (props != NULL, NULL);
+ g_return_val_if_fail (name != NULL, NULL);
+
+ quark = g_quark_from_string (name);
+
+ lentry = g_list_find_custom (props->properties, GINT_TO_POINTER (quark), props_find_func);
+
+ if (lentry) {
+ GstPropsEntry *thisentry;
+ thisentry = (GstPropsEntry *)lentry->data;
+ return thisentry;
+ }
+ return NULL;
+}
+
+/**
+ * gst_props_has_property:
+ * @props: the props to check
+ * @name: the name of the key to find
+ *
+ * Checks if a given props has a property with the given name.
+ *
+ * Returns: TRUE if the property was found, FALSE otherwise.
+ */
+gboolean
+gst_props_has_property (GstProps *props, const gchar *name)
+{
+ return (gst_props_get_entry (props, name) != NULL);
+}
+
+/**
+ * gst_props_has_property_typed:
+ * @props: the props to check
+ * @name: the name of the key to find
+ * @type: the type of the required property
+ *
+ * Checks if a given props has a property with the given name and the given type.
+ *
+ * Returns: TRUE if the property was found, FALSE otherwise.
+ */
+gboolean
+gst_props_has_property_typed (GstProps *props, const gchar *name, GstPropsType type)
+{
+ const GstPropsEntry *entry;
+
+ entry = gst_props_get_entry (props, name);
+ if (!entry)
+ return FALSE;
+
+ return (entry->propstype == type);
+}
+
+/**
+ * gst_props_has_fixed_property:
+ * @props: the props to check
+ * @name: the name of the key to find
+ *
+ * Checks if a given props has a property with the given name that
+ * is also fixed, ie. is not a list or a range.
+ *
+ * Returns: TRUE if the property was found, FALSE otherwise.
+ */
+gboolean
+gst_props_has_fixed_property (GstProps *props, const gchar *name)
+{
+ const GstPropsEntry *entry;
+
+ entry = gst_props_get_entry (props, name);
+ if (!entry)
+ return FALSE;
+
+ return !GST_PROPS_ENTRY_IS_VARIABLE (entry);
+}
+
+/**
+ * gst_props_entry_get_type:
+ * @entry: the props entry to query
+ *
+ * Get the type of the given props entry.
+ *
+ * Returns: The type of the props entry.
+ */
+GstPropsType
+gst_props_entry_get_type (const GstPropsEntry *entry)
+{
+ g_return_val_if_fail (entry != NULL, GST_PROPS_INVALID_TYPE);
+
+ return entry->propstype;
+}
+
+/**
+ * gst_props_entry_get_name:
+ * @entry: the props entry to query
+ *
+ * Get the name of the given props entry.
+ *
+ * Returns: The name of the props entry.
+ */
+const gchar*
+gst_props_entry_get_name (const GstPropsEntry *entry)
+{
+ g_return_val_if_fail (entry != NULL, NULL);
+
+ return g_quark_to_string (entry->propid);
+}
+
+/**
+ * gst_props_entry_is_fixed:
+ * @entry: the props entry to query
+ *
+ * Checks if the props entry is fixe, ie. is not a list
+ * or a range.
+ *
+ * Returns: TRUE is the props entry is fixed.
+ */
+gboolean
+gst_props_entry_is_fixed (const GstPropsEntry *entry)
+{
+ g_return_val_if_fail (entry != NULL, FALSE);
+
+ return !GST_PROPS_ENTRY_IS_VARIABLE (entry);
+}
+
+static gboolean
+gst_props_entry_getv (const GstPropsEntry *entry, gboolean safe, va_list var_args)
+{
+ gboolean result;
+
+ GST_PROPS_ENTRY_READ (entry, var_args, safe, &result);
+
+ return result;
+}
+
+/**
+ * gst_props_entry_get:
+ * @entry: the props entry to query
+ * @...: a pointer to a type that can hold the value.
+ *
+ * Gets the contents of the entry.
+ *
+ * Returns: TRUE is the props entry could be fetched.
+ */
+gboolean
+gst_props_entry_get (const GstPropsEntry *entry, ...)
+{
+ gboolean result;
+ va_list var_args;
+
+ g_return_val_if_fail (entry != NULL, FALSE);
+
+ va_start (var_args, entry);
+ result = gst_props_entry_getv (entry, FALSE, var_args);
+ va_end (var_args);
+
+ return result;
+}
+
+static gboolean
+gst_props_entry_get_safe (const GstPropsEntry *entry, ...)
+{
+ gboolean result;
+ va_list var_args;
+
+ g_return_val_if_fail (entry != NULL, FALSE);
+
+ va_start (var_args, entry);
+ result = gst_props_entry_getv (entry, TRUE, var_args);
+ va_end (var_args);
+
+ return result;
+}
+
+static gboolean
+gst_props_getv (GstProps *props, gboolean safe, gchar *first_name, va_list var_args)
+{
+ while (first_name) {
+ const GstPropsEntry *entry = gst_props_get_entry (props, first_name);
+ gboolean result;
+
+ if (!entry) return FALSE;
+ GST_PROPS_ENTRY_READ (entry, var_args, FALSE, &result);
+ if (!result) return FALSE;
+
+ first_name = va_arg (var_args, gchar *);
+ }
+ return TRUE;
+}
+
+/**
+ * gst_props_get:
+ * @props: the props to query
+ * @first_name: the first key
+ * @...: a pointer to a datastructure that can hold the value.
+ *
+ * Gets the contents of the props into given key/value pairs.
+ *
+ * Returns: TRUE is the props entry could be fetched.
+ */
+gboolean
+gst_props_get (GstProps *props, gchar *first_name, ...)
+{
+ va_list var_args;
+ gboolean ret;
+
+ va_start (var_args, first_name);
+ ret = gst_props_getv (props, FALSE, first_name, var_args);
+ va_end (var_args);
+
+ return ret;
+}
+
+/**
+ * gst_props_get_safe:
+ * @props: the props to query
+ * @first_name: the first key
+ * @...: a pointer to a datastructure that can hold the value.
+ *
+ * Gets the contents of the props into given key/value pairs.
+ *
+ * Returns: TRUE is the props entry could be fetched.
+ */
+gboolean
+gst_props_get_safe (GstProps *props, gchar *first_name, ...)
+{
+ va_list var_args;
+ gboolean ret;
+
+ va_start (var_args, first_name);
+ ret = gst_props_getv (props, TRUE, first_name, var_args);
+ va_end (var_args);
+
+ return ret;
+}
+
+/**
+ * gst_props_entry_get_int:
+ * @entry: the props entry to query
+ * @val: a pointer to a gint to hold the value.
+ *
+ * Get the contents of the entry into the given gint.
+ *
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
+ */
+gboolean
+gst_props_entry_get_int (const GstPropsEntry *entry, gint *val)
+{
+ return gst_props_entry_get_safe (entry, GST_PROPS_INT_TYPE, val);
+}
+
+/**
+ * gst_props_entry_get_float:
+ * @entry: the props entry to query
+ * @val: a pointer to a gfloat to hold the value.
+ *
+ * Get the contents of the entry into the given gfloat.
+ *
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
+ */
+gboolean
+gst_props_entry_get_float (const GstPropsEntry *entry, gfloat *val)
+{
+ return gst_props_entry_get_safe (entry, GST_PROPS_FLOAT_TYPE, val);
+}
+
+/**
+ * gst_props_entry_get_fourcc_int:
+ * @entry: the props entry to query
+ * @val: a pointer to a guint32 to hold the value.
+ *
+ * Get the contents of the entry into the given guint32.
+ *
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
+ */
+gboolean
+gst_props_entry_get_fourcc_int (const GstPropsEntry *entry, guint32 *val)
{
- GstPropsEntry *entry1 = (GstPropsEntry *)a;
- GstPropsEntry *entry2 = (GstPropsEntry *)b;
-
- return (entry1->propid - entry2->propid);
+ return gst_props_entry_get_safe (entry, GST_PROPS_FOURCC_TYPE, val);
}
/**
- * gst_props_register:
- * @factory: the factory to register
+ * gst_props_entry_get_boolean:
+ * @entry: the props entry to query
+ * @val: a pointer to a gboolean to hold the value.
*
- * Register the factory.
+ * Get the contents of the entry into the given gboolean.
*
- * Returns: the new property created from the factory
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
*/
-GstProps *
-gst_props_register (GstPropsFactory factory)
+gboolean
+gst_props_entry_get_boolean (const GstPropsEntry *entry, gboolean *val)
{
- guint dummy;
-
- return gst_props_register_count (factory, &dummy);
+ return gst_props_entry_get_safe (entry, GST_PROPS_BOOL_TYPE, val);
}
/**
- * gst_props_register_count:
- * @factory: the factory to register
- * @counter: count how many fields were consumed
+ * gst_props_entry_get_string:
+ * @entry: the props entry to query
+ * @val: a pointer to a gchar* to hold the value.
*
- * Register the factory.
+ * Get the contents of the entry into the given gchar*.
*
- * Returns: the new property created from the factory
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
*/
-GstProps *
-gst_props_register_count (GstPropsFactory factory, guint *counter)
+gboolean
+gst_props_entry_get_string (const GstPropsEntry *entry, const gchar **val)
{
- GstPropsFactoryEntry tag;
- gint i = 0;
- GstProps *props = NULL;
- gint skipped;
-
- g_return_val_if_fail (factory != NULL, NULL);
-
- tag = factory[i++];
-
- if (!tag) goto end;
-
- props = g_new0 (GstProps, 1);
- g_return_val_if_fail (props != NULL, NULL);
-
- props->properties = NULL;
-
- while (tag) {
- GQuark quark;
- GstPropsEntry *entry;
-
- if (tag < GST_PROPS_LAST_ID) {
- g_warning ("properties seem to be wrong\n");
- return NULL;
- }
-
- 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_list_insert_sorted (props->properties, entry, props_compare_func);
-
- tag = factory[i++];
- }
-
-end:
- *counter = i;
-
- return props;
+ return gst_props_entry_get_safe (entry, GST_PROPS_STRING_TYPE, val);
}
/**
- * gst_props_new:
- * @entry: the property entries for the property
- * @...: the property entries for the property
+ * gst_props_entry_get_int_range:
+ * @entry: the props entry to query
+ * @min: a pointer to a gint to hold the minimun value.
+ * @max: a pointer to a gint to hold the maximum value.
*
- * Create a new property from the list of entries.
+ * Get the contents of the entry into the given gints.
*
- * Returns: the new property created from the list of entries
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
*/
-GstProps *
-gst_props_new (GstPropsFactoryEntry entry, ...)
+gboolean
+gst_props_entry_get_int_range (const GstPropsEntry *entry, gint *min, gint *max)
{
- va_list var_args;
- GstPropsFactoryEntry value;
- gint i = 0;
- gint size, skip;
- GstPropsFactoryEntry *factory;
- gboolean inlist = FALSE;
- GstProps *props;
-
-#define add_value(value) {\
- GST_DEBUG (0,"%d %p\n", i, value);\
- factory[i++] = value; \
- if (i >= size) { \
- size += 16; \
- factory = (GstPropsFactoryEntry *) g_realloc (factory, size*sizeof(GstPropsFactoryEntry));\
- }\
+ return gst_props_entry_get_safe (entry, GST_PROPS_INT_RANGE_TYPE, min, max);
}
- size = 16;
- factory = (GstPropsFactoryEntry *) g_malloc (size*sizeof(GstPropsFactoryEntry));
-
- va_start (var_args, entry);
- // property name
- value = (GstPropsFactoryEntry) entry;
-
- // properties
- while (value) {
- if (!inlist) {
- // add name
- add_value (value);
-
- // get value
- value = va_arg (var_args, GstPropsFactoryEntry);
- }
- switch (GPOINTER_TO_INT (value)) {
- case GST_PROPS_END_ID:
- g_assert (inlist == TRUE);
-
- inlist = FALSE;
- skip = 0;
- break;
- case GST_PROPS_LIST_ID:
- {
- g_assert (inlist == FALSE);
-
- skip = 0;
- inlist = TRUE;
- break;
- }
- default:
- skip = _arg_len[GPOINTER_TO_INT (value)];
- break;
- }
- do {
- add_value (value);
- value = va_arg (var_args, GstPropsFactoryEntry);
- }
- while (skip--);
- }
- factory[i++] = NULL;
-
- props = gst_props_register (factory);
+/**
+ * gst_props_entry_get_float_range:
+ * @entry: the props entry to query
+ * @min: a pointer to a gfloat to hold the minimun value.
+ * @max: a pointer to a gfloat to hold the maximum value.
+ *
+ * Get the contents of the entry into the given gfloats.
+ *
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
+ */
+gboolean
+gst_props_entry_get_float_range (const GstPropsEntry *entry, gfloat *min, gfloat *max)
+{
+ return gst_props_entry_get_safe (entry, GST_PROPS_FLOAT_RANGE_TYPE, min, max);
+}
- return props;
+/**
+ * gst_props_entry_get_list:
+ * @entry: the props entry to query
+ * @val: a pointer to a GList to hold the value.
+ *
+ * Get the contents of the entry into the given GList.
+ *
+ * Returns: TRUE is the value could be fetched. FALSE if the
+ * entry is not of given type.
+ */
+gboolean
+gst_props_entry_get_list (const GstPropsEntry *entry, const GList **val)
+{
+ return gst_props_entry_get_safe (entry, GST_PROPS_LIST_TYPE, val);
}
/**
merge_props = tomerge->properties;
- // FIXME do proper merging here...
+ /* FIXME do proper merging here... */
while (merge_props) {
GstPropsEntry *entry = (GstPropsEntry *)merge_props->data;
- props->properties = g_list_insert_sorted (props->properties, entry, props_compare_func);
+ gst_props_add_entry (props, entry);
merge_props = g_list_next (merge_props);
}
static gboolean
gst_props_entry_check_compatibility (GstPropsEntry *entry1, GstPropsEntry *entry2)
{
- GST_DEBUG (0,"compare: %s %s\n", g_quark_to_string (entry1->propid),
+ GST_DEBUG (GST_CAT_PROPERTIES,"compare: %s %s", g_quark_to_string (entry1->propid),
g_quark_to_string (entry2->propid));
+
+ if (entry2->propstype == GST_PROPS_LIST_TYPE && entry1->propstype != GST_PROPS_LIST_TYPE) {
+ return gst_props_entry_check_list_compatibility (entry1, entry2);
+ }
+
switch (entry1->propstype) {
- case GST_PROPS_LIST_ID_NUM:
+ case GST_PROPS_LIST_TYPE:
{
GList *entrylist = entry1->data.list_data.entries;
- gboolean valid = TRUE; // innocent until proven guilty
+ gboolean valid = TRUE; /* innocent until proven guilty */
while (entrylist && valid) {
GstPropsEntry *entry = (GstPropsEntry *) entrylist->data;
return valid;
}
- case GST_PROPS_INT_RANGE_ID_NUM:
+ case GST_PROPS_INT_RANGE_TYPE:
switch (entry2->propstype) {
- // a - b <---> a - c
- case GST_PROPS_INT_RANGE_ID_NUM:
+ /* a - b <---> a - c */
+ case GST_PROPS_INT_RANGE_TYPE:
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;
}
break;
- case GST_PROPS_FOURCC_ID_NUM:
+ case GST_PROPS_FLOAT_RANGE_TYPE:
switch (entry2->propstype) {
- // b <---> a
- case GST_PROPS_FOURCC_ID_NUM:
+ /* a - b <---> a - c */
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ return (entry2->data.float_range_data.min <= entry1->data.float_range_data.min &&
+ entry2->data.float_range_data.max >= entry1->data.float_range_data.max);
+ default:
+ break;
+ }
+ break;
+ case GST_PROPS_FOURCC_TYPE:
+ switch (entry2->propstype) {
+ /* b <---> a */
+ case GST_PROPS_FOURCC_TYPE:
+ GST_DEBUG(GST_CAT_PROPERTIES,"\"%4.4s\" <--> \"%4.4s\" ?",
+ (char*) &entry2->data.fourcc_data, (char*) &entry1->data.fourcc_data);
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;
}
break;
- case GST_PROPS_INT_ID_NUM:
+ case GST_PROPS_INT_TYPE:
switch (entry2->propstype) {
- // b <---> a - d
- case GST_PROPS_INT_RANGE_ID_NUM:
+ /* b <---> a - d */
+ case GST_PROPS_INT_RANGE_TYPE:
+ GST_DEBUG(GST_CAT_PROPERTIES,"%d <= %d <= %d ?",entry2->data.int_range_data.min,
+ entry1->data.int_data,entry2->data.int_range_data.max);
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:
+ /* b <---> a */
+ case GST_PROPS_INT_TYPE:
+ GST_DEBUG(GST_CAT_PROPERTIES,"%d == %d ?",entry1->data.int_data,entry2->data.int_data);
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;
+ }
+ break;
+ case GST_PROPS_FLOAT_TYPE:
+ switch (entry2->propstype) {
+ /* b <---> a - d */
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ return (entry2->data.float_range_data.min <= entry1->data.float_data &&
+ entry2->data.float_range_data.max >= entry1->data.float_data);
+ /* b <---> a */
+ case GST_PROPS_FLOAT_TYPE:
+ return (entry2->data.float_data == entry1->data.float_data);
+ default:
+ break;
}
break;
- case GST_PROPS_BOOL_ID_NUM:
+ case GST_PROPS_BOOL_TYPE:
switch (entry2->propstype) {
- // t <---> t
- case GST_PROPS_BOOL_ID_NUM:
+ /* t <---> t */
+ case GST_PROPS_BOOL_TYPE:
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;
+ break;
+ }
+ case GST_PROPS_STRING_TYPE:
+ switch (entry2->propstype) {
+ /* t <---> t */
+ case GST_PROPS_STRING_TYPE:
+ GST_DEBUG(GST_CAT_PROPERTIES,"\"%s\" <--> \"%s\" ?",
+ entry2->data.string_data.string, entry1->data.string_data.string);
+ return (!strcmp (entry2->data.string_data.string, entry1->data.string_data.string));
+ default:
+ break;
}
default:
break;
entry2 = (GstPropsEntry *)sinklist->data;
while (entry1->propid < entry2->propid) {
- GST_DEBUG (0,"source is more specific in \"%s\"\n", g_quark_to_string (entry1->propid));
more++;
sourcelist = g_list_next (sourcelist);
if (sourcelist) entry1 = (GstPropsEntry *)sourcelist->data;
else goto end;
}
while (entry1->propid > entry2->propid) {
- GST_DEBUG (0,"source has missing property \"%s\"\n", g_quark_to_string (entry2->propid));
missing++;
sinklist = g_list_next (sinklist);
if (sinklist) entry2 = (GstPropsEntry *)sinklist->data;
else goto end;
}
- compatible &= gst_props_entry_check_compatibility (entry1, entry2);
+ if (!gst_props_entry_check_compatibility (entry1, entry2)) {
+ compatible = FALSE;
+ GST_DEBUG (GST_CAT_PROPERTIES, "%s are not compatible: ",
+ g_quark_to_string (entry1->propid));
+ }
sourcelist = g_list_next (sourcelist);
sinklist = g_list_next (sinklist);
}
- if (sinklist) {
+ if (sinklist && compatible) {
GstPropsEntry *entry2;
entry2 = (GstPropsEntry *)sinklist->data;
missing++;
- GST_DEBUG (0,"source has missing property \"%s\"\n", g_quark_to_string (entry2->propid));
}
end:
return compatible;
}
+static GstPropsEntry*
+gst_props_entry_intersect (GstPropsEntry *entry1, GstPropsEntry *entry2)
+{
+ GstPropsEntry *result = NULL;
+
+ /* try to move the ranges and lists first */
+ switch (entry2->propstype) {
+ case GST_PROPS_INT_RANGE_TYPE:
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ case GST_PROPS_LIST_TYPE:
+ {
+ GstPropsEntry *temp;
+
+ temp = entry1;
+ entry1 = entry2;
+ entry2 = temp;
+ }
+ default:
+ break;
+ }
+
+ switch (entry1->propstype) {
+ case GST_PROPS_LIST_TYPE:
+ {
+ GList *entrylist = entry1->data.list_data.entries;
+ GList *intersection = NULL;
+
+ while (entrylist) {
+ GstPropsEntry *entry = (GstPropsEntry *) entrylist->data;
+ GstPropsEntry *intersectentry;
+
+ intersectentry = gst_props_entry_intersect (entry2, entry);
+
+ if (intersectentry) {
+ if (intersectentry->propstype == GST_PROPS_LIST_TYPE) {
+ intersection = g_list_concat (intersection,
+ g_list_copy (intersectentry->data.list_data.entries));
+ /* set the list to NULL because the entries are concatenated to the above
+ * list and we don't want to free them */
+ intersectentry->data.list_data.entries = NULL;
+ gst_props_entry_destroy (intersectentry);
+ }
+ else {
+ intersection = g_list_prepend (intersection, intersectentry);
+ }
+ }
+ entrylist = g_list_next (entrylist);
+ }
+ if (intersection) {
+ /* check if the list only contains 1 element, if so, we can just copy it */
+ if (g_list_next (intersection) == NULL) {
+ result = (GstPropsEntry *) (intersection->data);
+ g_list_free (intersection);
+ }
+ /* else we need to create a new entry to hold the list */
+ else {
+ result = gst_props_alloc_entry ();
+ result->propid = entry1->propid;
+ result->propstype = GST_PROPS_LIST_TYPE;
+ result->data.list_data.entries = g_list_reverse (intersection);
+ }
+ }
+ return result;
+ }
+ case GST_PROPS_INT_RANGE_TYPE:
+ switch (entry2->propstype) {
+ /* a - b <---> a - c */
+ case GST_PROPS_INT_RANGE_TYPE:
+ {
+ gint lower = MAX (entry1->data.int_range_data.min, entry2->data.int_range_data.min);
+ gint upper = MIN (entry1->data.int_range_data.max, entry2->data.int_range_data.max);
+
+ if (lower <= upper) {
+ result = gst_props_alloc_entry ();
+ result->propid = entry1->propid;
+
+ if (lower == upper) {
+ result->propstype = GST_PROPS_INT_TYPE;
+ result->data.int_data = lower;
+ }
+ else {
+ result->propstype = GST_PROPS_INT_RANGE_TYPE;
+ result->data.int_range_data.min = lower;
+ result->data.int_range_data.max = upper;
+ }
+ }
+ break;
+ }
+ case GST_PROPS_LIST_TYPE:
+ {
+ GList *entries = entry2->data.list_data.entries;
+ result = gst_props_alloc_entry ();
+ result->propid = entry1->propid;
+ result->propstype = GST_PROPS_LIST_TYPE;
+ result->data.list_data.entries = NULL;
+ while (entries) {
+ GstPropsEntry * this = (GstPropsEntry *)entries->data;
+ if (this->propstype != GST_PROPS_INT_TYPE) {
+ /* no hope, this list doesn't even contain ints! */
+ gst_props_entry_destroy (result);
+ result = NULL;
+ break;
+ }
+ if (this->data.int_data >= entry1->data.int_range_data.min &&
+ this->data.int_data <= entry1->data.int_range_data.max) {
+ result->data.list_data.entries = g_list_append (result->data.list_data.entries,
+ gst_props_entry_copy (this));
+ }
+ entries = g_list_next (entries);
+ }
+ break;
+ }
+ case GST_PROPS_INT_TYPE:
+ {
+ if (entry1->data.int_range_data.min <= entry2->data.int_data &&
+ entry1->data.int_range_data.max >= entry2->data.int_data) {
+ result = gst_props_entry_copy (entry2);
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ break;
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ switch (entry2->propstype) {
+ /* a - b <---> a - c */
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ {
+ gfloat lower = MAX (entry1->data.float_range_data.min, entry2->data.float_range_data.min);
+ gfloat upper = MIN (entry1->data.float_range_data.max, entry2->data.float_range_data.max);
+
+ if (lower <= upper) {
+ result = gst_props_alloc_entry ();
+ result->propid = entry1->propid;
+
+ if (lower == upper) {
+ result->propstype = GST_PROPS_FLOAT_TYPE;
+ result->data.float_data = lower;
+ }
+ else {
+ result->propstype = GST_PROPS_FLOAT_RANGE_TYPE;
+ result->data.float_range_data.min = lower;
+ result->data.float_range_data.max = upper;
+ }
+ }
+ break;
+ }
+ case GST_PROPS_FLOAT_TYPE:
+ if (entry1->data.float_range_data.min <= entry2->data.float_data &&
+ entry1->data.float_range_data.max >= entry2->data.float_data) {
+ result = gst_props_entry_copy (entry2);
+ }
+ default:
+ break;
+ }
+ break;
+ case GST_PROPS_FOURCC_TYPE:
+ switch (entry2->propstype) {
+ /* b <---> a */
+ case GST_PROPS_FOURCC_TYPE:
+ if (entry1->data.fourcc_data == entry2->data.fourcc_data)
+ result = gst_props_entry_copy (entry1);
+ default:
+ break;
+ }
+ break;
+ case GST_PROPS_INT_TYPE:
+ switch (entry2->propstype) {
+ /* b <---> a */
+ case GST_PROPS_INT_TYPE:
+ if (entry1->data.int_data == entry2->data.int_data)
+ result = gst_props_entry_copy (entry1);
+ default:
+ break;
+ }
+ break;
+ case GST_PROPS_FLOAT_TYPE:
+ switch (entry2->propstype) {
+ /* b <---> a */
+ case GST_PROPS_FLOAT_TYPE:
+ if (entry1->data.float_data == entry2->data.float_data)
+ result = gst_props_entry_copy (entry1);
+ default:
+ break;
+ }
+ break;
+ case GST_PROPS_BOOL_TYPE:
+ switch (entry2->propstype) {
+ /* t <---> t */
+ case GST_PROPS_BOOL_TYPE:
+ if (entry1->data.bool_data == entry2->data.bool_data)
+ result = gst_props_entry_copy (entry1);
+ default:
+ break;
+ }
+ case GST_PROPS_STRING_TYPE:
+ switch (entry2->propstype) {
+ /* t <---> t */
+ case GST_PROPS_STRING_TYPE:
+ if (!strcmp (entry1->data.string_data.string, entry2->data.string_data.string))
+ result = gst_props_entry_copy (entry1);
+ default:
+ break;
+ }
+ default:
+ break;
+ }
+
+ return result;
+}
+
+/**
+ * gst_props_intersect:
+ * @props1: a property
+ * @props2: another property
+ *
+ * Calculates the intersection bewteen two GstProps.
+ *
+ * Returns: a GstProps with the intersection or NULL if the
+ * intersection is empty.
+ */
+GstProps*
+gst_props_intersect (GstProps *props1, GstProps *props2)
+{
+ GList *props1list;
+ GList *props2list;
+ GstProps *intersection;
+ GList *leftovers;
+ GstPropsEntry *iprops = NULL;
+
+ intersection = gst_props_empty_new ();
+ intersection->fixed = TRUE;
+
+ g_return_val_if_fail (props1 != NULL, NULL);
+ g_return_val_if_fail (props2 != NULL, NULL);
+
+ props1list = props1->properties;
+ props2list = props2->properties;
+
+ while (props1list && props2list) {
+ GstPropsEntry *entry1;
+ GstPropsEntry *entry2;
+
+ entry1 = (GstPropsEntry *)props1list->data;
+ entry2 = (GstPropsEntry *)props2list->data;
+
+ while (entry1->propid < entry2->propid) {
+ GstPropsEntry *toadd;
+
+ GST_DEBUG (GST_CAT_PROPERTIES,"source is more specific in \"%s\"", g_quark_to_string (entry1->propid));
+
+ toadd = gst_props_entry_copy (entry1);
+ if (GST_PROPS_ENTRY_IS_VARIABLE (toadd))
+ intersection->fixed = FALSE;
+
+ intersection->properties = g_list_prepend (intersection->properties, toadd);
+
+ props1list = g_list_next (props1list);
+ if (props1list)
+ entry1 = (GstPropsEntry *)props1list->data;
+ else
+ goto end;
+ }
+ while (entry1->propid > entry2->propid) {
+ GstPropsEntry *toadd;
+
+ toadd = gst_props_entry_copy (entry2);
+ if (GST_PROPS_ENTRY_IS_VARIABLE (toadd))
+ intersection->fixed = FALSE;
+
+ intersection->properties = g_list_prepend (intersection->properties, toadd);
+
+ props2list = g_list_next (props2list);
+ if (props2list)
+ entry2 = (GstPropsEntry *)props2list->data;
+ else
+ goto end;
+ }
+ /* at this point we are talking about the same property */
+ iprops = gst_props_entry_intersect (entry1, entry2);
+
+ if (iprops) {
+ if (GST_PROPS_ENTRY_IS_VARIABLE (iprops))
+ intersection->fixed = FALSE;
+ intersection->properties = g_list_prepend (intersection->properties, iprops);
+ }
+ else {
+ gst_props_unref (intersection);
+ return NULL;
+ }
+
+ props1list = g_list_next (props1list);
+ props2list = g_list_next (props2list);
+ }
+
+end:
+ /* at this point one of the lists could contain leftover properties */
+ if (props1list)
+ leftovers = props1list;
+ else if (props2list)
+ leftovers = props2list;
+ else
+ leftovers = NULL;
+
+ while (leftovers) {
+ GstPropsEntry *entry;
+
+ entry = (GstPropsEntry *) leftovers->data;
+ if (GST_PROPS_ENTRY_IS_VARIABLE (entry))
+ intersection->fixed = FALSE;
+ intersection->properties = g_list_prepend (intersection->properties, gst_props_entry_copy (entry));
+
+ leftovers = g_list_next (leftovers);
+ }
+
+ intersection->properties = g_list_reverse (intersection->properties);
+
+ return intersection;
+}
+
+/**
+ * gst_props_normalize:
+ * @props: a property
+ *
+ * Unrolls all lists in the given GstProps. This is usefull if you
+ * want to loop over the props.
+ *
+ * Returns: A GList with the unrolled props entries.
+ */
+GList*
+gst_props_normalize (GstProps *props)
+{
+ GList *entries;
+ GList *result = NULL;
+
+ if (!props)
+ return NULL;
+
+ entries = props->properties;
+
+ while (entries) {
+ GstPropsEntry *entry = (GstPropsEntry *) entries->data;
+
+ if (entry->propstype == GST_PROPS_LIST_TYPE) {
+ GList *list_entries = entry->data.list_data.entries;
+
+ while (list_entries) {
+ GstPropsEntry *list_entry = (GstPropsEntry *) list_entries->data;
+ GstPropsEntry *new_entry;
+ GstProps *newprops;
+ GList *lentry;
+
+ newprops = gst_props_empty_new ();
+ newprops->properties = gst_props_list_copy (props->properties);
+ lentry = g_list_find_custom (newprops->properties, GINT_TO_POINTER (list_entry->propid), props_find_func);
+ if (lentry) {
+ GList *new_list = NULL;
+
+ new_entry = (GstPropsEntry *) lentry->data;
+ memcpy (new_entry, list_entry, sizeof (GstPropsEntry));
+
+ new_list = gst_props_normalize (newprops);
+ result = g_list_concat (new_list, result);
+ }
+ else {
+ result = g_list_append (result, newprops);
+ }
+
+ list_entries = g_list_next (list_entries);
+ }
+ /* we break out of the loop because the other lists are
+ * unrolled in the recursive call */
+ break;
+ }
+ entries = g_list_next (entries);
+ }
+ if (!result) {
+ result = g_list_prepend (result, props);
+ }
+ else {
+ result = g_list_reverse (result);
+ gst_props_unref (props);
+ }
+ return result;
+}
+
+#ifndef GST_DISABLE_LOADSAVE_REGISTRY
static xmlNodePtr
gst_props_save_thyself_func (GstPropsEntry *entry, xmlNodePtr parent)
{
gchar *str;
switch (entry->propstype) {
- case GST_PROPS_INT_ID_NUM:
+ case GST_PROPS_INT_TYPE:
subtree = xmlNewChild (parent, NULL, "int", NULL);
xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
str = g_strdup_printf ("%d", entry->data.int_data);
xmlNewProp (subtree, "value", str);
g_free(str);
break;
- case GST_PROPS_INT_RANGE_ID_NUM:
+ case GST_PROPS_INT_RANGE_TYPE:
subtree = xmlNewChild (parent, NULL, "range", NULL);
xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
str = g_strdup_printf ("%d", entry->data.int_range_data.min);
xmlNewProp (subtree, "max", str);
g_free(str);
break;
- case GST_PROPS_FOURCC_ID_NUM:
+ case GST_PROPS_FLOAT_TYPE:
+ subtree = xmlNewChild (parent, NULL, "float", NULL);
+ xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
+ str = g_strdup_printf ("%f", entry->data.float_data);
+ xmlNewProp (subtree, "value", str);
+ g_free(str);
+ break;
+ case GST_PROPS_FLOAT_RANGE_TYPE:
+ subtree = xmlNewChild (parent, NULL, "floatrange", NULL);
+ xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
+ str = g_strdup_printf ("%f", entry->data.float_range_data.min);
+ xmlNewProp (subtree, "min", str);
+ g_free(str);
+ str = g_strdup_printf ("%f", entry->data.float_range_data.max);
+ xmlNewProp (subtree, "max", str);
+ g_free(str);
+ break;
+ case GST_PROPS_FOURCC_TYPE:
str = g_strdup_printf ("%4.4s", (gchar *)&entry->data.fourcc_data);
xmlAddChild (parent, xmlNewComment (str));
g_free(str);
xmlNewProp (subtree, "hexvalue", str);
g_free(str);
break;
- case GST_PROPS_BOOL_ID_NUM:
+ case GST_PROPS_BOOL_TYPE:
subtree = xmlNewChild (parent, NULL, "boolean", NULL);
xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
xmlNewProp (subtree, "value", (entry->data.bool_data ? "true" : "false"));
break;
+ case GST_PROPS_STRING_TYPE:
+ subtree = xmlNewChild (parent, NULL, "string", NULL);
+ xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
+ xmlNewProp (subtree, "value", entry->data.string_data.string);
+ break;
default:
+ g_warning ("trying to save unknown property type %d", entry->propstype);
break;
}
GstPropsEntry *entry = (GstPropsEntry *) proplist->data;
switch (entry->propstype) {
- case GST_PROPS_LIST_ID_NUM:
+ case GST_PROPS_LIST_TYPE:
subtree = xmlNewChild (parent, NULL, "list", NULL);
xmlNewProp (subtree, "name", g_quark_to_string (entry->propid));
g_list_foreach (entry->data.list_data.entries, (GFunc) gst_props_save_thyself_func, subtree);
+ break;
default:
gst_props_save_thyself_func (entry, parent);
}
GstPropsEntry *entry;
gchar *prop;
- entry = g_new0 (GstPropsEntry, 1);
+ entry = gst_props_alloc_entry ();
if (!strcmp(field->name, "int")) {
- entry->propstype = GST_PROPS_INT_ID_NUM;
+ entry->propstype = GST_PROPS_INT_TYPE;
prop = xmlGetProp(field, "name");
entry->propid = g_quark_from_string (prop);
g_free (prop);
g_free (prop);
}
else if (!strcmp(field->name, "range")) {
- entry->propstype = GST_PROPS_INT_RANGE_ID_NUM;
+ entry->propstype = GST_PROPS_INT_RANGE_TYPE;
prop = xmlGetProp(field, "name");
entry->propid = g_quark_from_string (prop);
g_free (prop);
prop = xmlGetProp (field, "min");
sscanf (prop, "%d", &entry->data.int_range_data.min);
g_free (prop);
- prop = xmlGetProp (field, "min");
+ prop = xmlGetProp (field, "max");
sscanf (prop, "%d", &entry->data.int_range_data.max);
g_free (prop);
}
+ else if (!strcmp(field->name, "float")) {
+ entry->propstype = GST_PROPS_FLOAT_TYPE;
+ prop = xmlGetProp(field, "name");
+ entry->propid = g_quark_from_string (prop);
+ g_free (prop);
+ prop = xmlGetProp(field, "value");
+ sscanf (prop, "%f", &entry->data.float_data);
+ g_free (prop);
+ }
+ else if (!strcmp(field->name, "floatrange")) {
+ entry->propstype = GST_PROPS_FLOAT_RANGE_TYPE;
+ prop = xmlGetProp(field, "name");
+ entry->propid = g_quark_from_string (prop);
+ g_free (prop);
+ prop = xmlGetProp (field, "min");
+ sscanf (prop, "%f", &entry->data.float_range_data.min);
+ g_free (prop);
+ prop = xmlGetProp (field, "max");
+ sscanf (prop, "%f", &entry->data.float_range_data.max);
+ g_free (prop);
+ }
else if (!strcmp(field->name, "boolean")) {
- entry->propstype = GST_PROPS_BOOL_ID_NUM;
+ entry->propstype = GST_PROPS_BOOL_TYPE;
prop = xmlGetProp(field, "name");
entry->propid = g_quark_from_string (prop);
g_free (prop);
g_free (prop);
}
else if (!strcmp(field->name, "fourcc")) {
- entry->propstype = GST_PROPS_FOURCC_ID_NUM;
+ entry->propstype = GST_PROPS_FOURCC_TYPE;
prop = xmlGetProp(field, "name");
entry->propid = g_quark_from_string (prop);
g_free (prop);
sscanf (prop, "%08x", &entry->data.fourcc_data);
g_free (prop);
}
+ else if (!strcmp(field->name, "string")) {
+ entry->propstype = GST_PROPS_STRING_TYPE;
+ prop = xmlGetProp(field, "name");
+ entry->propid = g_quark_from_string (prop);
+ g_free (prop);
+ entry->data.string_data.string = xmlGetProp (field, "value");
+ }
+ else {
+ g_mutex_lock (_gst_props_entries_chunk_lock);
+ g_mem_chunk_free (_gst_props_entries_chunk, entry);
+ g_mutex_unlock (_gst_props_entries_chunk_lock);
+ entry = NULL;
+ }
return entry;
}
GstProps*
gst_props_load_thyself (xmlNodePtr parent)
{
- GstProps *props = g_new0 (GstProps, 1);
- xmlNodePtr field = parent->childs;
+ GstProps *props;
+ xmlNodePtr field = parent->xmlChildrenNode;
gchar *prop;
+ props = gst_props_empty_new ();
+
while (field) {
if (!strcmp (field->name, "list")) {
GstPropsEntry *entry;
- xmlNodePtr subfield = field->childs;
+ xmlNodePtr subfield = field->xmlChildrenNode;
- entry = g_new0 (GstPropsEntry, 1);
- entry->propstype = GST_PROPS_LIST_ID_NUM;
+ entry = gst_props_alloc_entry ();
prop = xmlGetProp (field, "name");
entry->propid = g_quark_from_string (prop);
g_free (prop);
+ entry->propstype = GST_PROPS_LIST_TYPE;
+ entry->data.list_data.entries = NULL;
while (subfield) {
GstPropsEntry *subentry = gst_props_load_thyself_func (subfield);
- entry->data.list_data.entries = g_list_prepend (entry->data.list_data.entries, subentry);
+ if (subentry)
+ entry->data.list_data.entries = g_list_prepend (entry->data.list_data.entries, subentry);
subfield = subfield->next;
}
entry->data.list_data.entries = g_list_reverse (entry->data.list_data.entries);
- props->properties = g_list_insert_sorted (props->properties, entry, props_compare_func);
+ gst_props_add_entry (props, entry);
}
else {
GstPropsEntry *entry;
entry = gst_props_load_thyself_func (field);
- props->properties = g_list_insert_sorted (props->properties, entry, props_compare_func);
+ if (entry)
+ gst_props_add_entry (props, entry);
}
field = field->next;
}
return props;
}
+#endif /* GST_DISABLE_LOADSAVE_REGISTRY */
projects / platform / upstream / gstreamer.git / blobdiff