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require type in gst_dparam_new, add gst_dparam_set_value_from_string convenience func

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Original commit message from CVS:
require type in gst_dparam_new, add gst_dparam_set_value_from_string convenience func
This commit is contained in:
Steve Baker 2001-09-12 11:22:43 +00:00
parent 7cfa1521d9
commit 205f90dae3
2 changed files with 86 additions and 10 deletions
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93
gst/gstdparam.c
View file

@ -89,7 +89,7 @@ gst_dparam_init (GstDParam *dparam)
* Returns: a new instance of GstDParam * Returns: a new instance of GstDParam
*/ */
GstDParam* GstDParam*
gst_dparam_new () gst_dparam_new (GType type)
{ {
GstDParam *dparam; GstDParam *dparam;
@ -97,7 +97,7 @@ gst_dparam_new ()
dparam->do_update_func = gst_dparam_do_update_realtime; dparam->do_update_func = gst_dparam_do_update_realtime;
dparam->get_point_func = gst_dparam_get_point_realtime; dparam->get_point_func = gst_dparam_get_point_realtime;
dparam->point = gst_dparam_new_value_array(G_TYPE_NONE, 0); dparam->point = gst_dparam_new_value_array(type, 0);
return dparam; return dparam;
} }
@ -139,24 +139,27 @@ gst_dparam_new_value_array(GType type, ...)
guint x; guint x;
gint values_length = 0; gint values_length = 0;
va_list var_args; va_list var_args;
GType each_type;
va_start (var_args, type); va_start (var_args, type);
while (type){ each_type = type;
while (each_type){
values_length++; values_length++;
type = va_arg (var_args, GType); each_type = va_arg (var_args, GType);
} }
va_end (var_args); va_end (var_args);
point = g_new0(GValue*,values_length + 1); point = g_new0(GValue*,values_length + 1);
va_start (var_args, type); va_start (var_args, type);
each_type = type;
for (x=0 ; x < values_length ; x++){ for (x=0 ; x < values_length ; x++){
value = g_new0(GValue,1); value = g_new0(GValue,1);
if (type != G_TYPE_NONE){ if (each_type != G_TYPE_NONE){
g_value_init(value, type); g_value_init(value, each_type);
} }
point[x] = value; point[x] = value;
type = va_arg (var_args, GType); each_type = va_arg (var_args, GType);
} }
point[values_length] = NULL; point[values_length] = NULL;
va_end (var_args); va_end (var_args);
@ -166,13 +169,85 @@ gst_dparam_new_value_array(GType type, ...)
return point; return point;
} }
void
gst_dparam_set_value_from_string(GValue *value, const gchar *value_str)
{
g_return_if_fail(value != NULL);
g_return_if_fail(value_str != NULL);
GST_DEBUG(GST_CAT_PARAMS, "parsing '%s' to type %s\n", value_str, g_type_name(G_VALUE_TYPE(value)));
switch (G_VALUE_TYPE(value)) {
case G_TYPE_STRING:
g_value_set_string(value, value_str);
break;
case G_TYPE_ENUM:
case G_TYPE_INT: {
gint i;
sscanf (value_str, "%d", &i);
g_value_set_int(value, i);
break;
}
case G_TYPE_UINT: {
guint i;
sscanf (value_str, "%u", &i);
g_value_set_uint(value, i);
break;
}
case G_TYPE_LONG: {
glong i;
sscanf (value_str, "%ld", &i);
g_value_set_long(value, i);
break;
}
case G_TYPE_ULONG: {
gulong i;
sscanf (value_str, "%lu", &i);
g_value_set_ulong(value, i);
break;
}
case G_TYPE_BOOLEAN: {
gboolean i = FALSE;
if (!strncmp ("true", value_str, 4)) i = TRUE;
g_value_set_boolean(value, i);
break;
}
case G_TYPE_CHAR: {
gchar i;
sscanf (value_str, "%c", &i);
g_value_set_char(value, i);
break;
}
case G_TYPE_UCHAR: {
guchar i;
sscanf (value_str, "%c", &i);
g_value_set_uchar(value, i);
break;
}
case G_TYPE_FLOAT: {
gfloat i;
sscanf (value_str, "%f", &i);
g_value_set_float(value, i);
break;
}
case G_TYPE_DOUBLE: {
gfloat i;
sscanf (value_str, "%g", &i);
g_value_set_double(value, (gdouble)i);
break;
}
default:
break;
}
}
static void static void
gst_dparam_do_update_realtime (GstDParam *dparam, gint64 timestamp) gst_dparam_do_update_realtime (GstDParam *dparam, gint64 timestamp)
{ {
GST_DEBUG(GST_CAT_PARAMS, "updating point for %s(%p)\n",GST_DPARAM_NAME (dparam),dparam);
GST_DPARAM_LOCK(dparam); GST_DPARAM_LOCK(dparam);
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE; GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
GST_DEBUG(GST_CAT_PARAMS, "updating value for %s(%p)\n",GST_DPARAM_NAME (dparam),dparam);
g_value_copy(dparam->point[0], GST_DPARAM_VALUE(dparam)); g_value_copy(dparam->point[0], GST_DPARAM_VALUE(dparam));
GST_DPARAM_UNLOCK(dparam); GST_DPARAM_UNLOCK(dparam);
} }

3
gst/gstdparam.h
View file

@ -110,9 +110,10 @@ struct _GstDParamClass {
}; };
GType gst_dparam_get_type (void); GType gst_dparam_get_type (void);
GstDParam* gst_dparam_new (); GstDParam* gst_dparam_new (GType type);
void gst_dparam_set_parent (GstDParam *dparam, GstObject *parent); void gst_dparam_set_parent (GstDParam *dparam, GstObject *parent);
GValue** gst_dparam_new_value_array(GType type, ...); GValue** gst_dparam_new_value_array(GType type, ...);
void gst_dparam_set_value_from_string(GValue *value, const gchar *value_str);
#ifdef __cplusplus #ifdef __cplusplus
} }