|  |  |  | GStreamer 0.10 Core Reference Manual |  | 
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| Top | Description | ||||
#include <gst/gst.h> #define GST_PARAM_CONTROLLABLE #define GST_PARAM_USER_SHIFT #define GST_PARAM_MUTABLE_PAUSED #define GST_PARAM_MUTABLE_PLAYING #define GST_PARAM_MUTABLE_READY GstParamSpecFraction; GParamSpec * gst_param_spec_fraction (const gchar *name,const gchar *nick,const gchar *blurb,gint min_num,gint min_denom,gint max_num,gint max_denom,gint default_num,gint default_denom,GParamFlags flags);
#define GST_PARAM_CONTROLLABLE (1 << (G_PARAM_USER_SHIFT + 1))
Use this flag on GObject properties to signal they can make sense to be. controlled over time. This hint is used by the GstController.
#define GST_PARAM_USER_SHIFT (1 << (G_PARAM_USER_SHIFT + 8))
Bits based on GST_PARAM_USER_SHIFT can be used by 3rd party applications.
#define GST_PARAM_MUTABLE_PAUSED (1 << (G_PARAM_USER_SHIFT + 3))
Use this flag on GObject properties of GstElements to indicate that they can be changed when the element is in the PAUSED or lower state. This flag implies GST_PARAM_MUTABLE_READY.
Since 0.10.23
#define GST_PARAM_MUTABLE_PLAYING (1 << (G_PARAM_USER_SHIFT + 4))
Use this flag on GObject properties of GstElements to indicate that they can be changed when the element is in the PLAYING or lower state. This flag implies GST_PARAM_MUTABLE_PAUSED.
Since 0.10.23
#define GST_PARAM_MUTABLE_READY (1 << (G_PARAM_USER_SHIFT + 2))
Use this flag on GObject properties of GstElements to indicate that they can be changed when the element is in the READY or lower state.
Since 0.10.23
typedef struct {
  GParamSpec    parent_instance;
  
  gint          min_num, min_den;
  gint          max_num, max_den;
  gint          def_num, def_den;
} GstParamSpecFraction;
A GParamSpec derived structure that contains the meta data for fractional properties.
GParamSpec * gst_param_spec_fraction (const gchar *name,const gchar *nick,const gchar *blurb,gint min_num,gint min_denom,gint max_num,gint max_denom,gint default_num,gint default_denom,GParamFlags flags);
This function creates a fraction GParamSpec for use by objects/elements
that want to expose properties of fraction type. This function is typically
used in connection with g_object_class_install_property() in a GObjects's
instance_init function.
| 
 | canonical name of the property specified | 
| 
 | nick name for the property specified | 
| 
 | description of the property specified | 
| 
 | minimum value (fraction numerator) | 
| 
 | minimum value (fraction denominator) | 
| 
 | maximum value (fraction numerator) | 
| 
 | maximum value (fraction denominator) | 
| 
 | default value (fraction numerator) | 
| 
 | default value (fraction denominator) | 
| 
 | flags for the property specified | 
| Returns : | a newly created parameter specification | 
Since 0.10.14