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pad: add pad private structure

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Add pad private structure and move the new chainlistfunc into the private
struct. This avoids ABI breakage and allows us to expand in the future.
This commit is contained in:
Wim Taymans 2009-05-28 16:36:32 +02:00
parent 1d05e05b3e
commit 8f7c59936e
3 changed files with 18 additions and 5 deletions
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2
docs/gst/gstreamer-sections.txt
View file

@ -1472,6 +1472,7 @@ GST_FLOW_IS_SUCCESS
<SUBSECTION Standard>
GstPadClass
GstPadPrivate
GST_PAD
GST_IS_PAD
GST_PAD_CLASS
@ -1526,7 +1527,6 @@ GST_PAD_ACTIVATEPULLFUNC
GST_PAD_ACTIVATEPUSHFUNC
GST_PAD_BUFFERALLOCFUNC
GST_PAD_CHAINFUNC
GST_PAD_CHAINLISTFUNC
GST_PAD_CHECKGETRANGEFUNC
GST_PAD_EVENTFUNC
GST_PAD_FIXATECAPSFUNC

14
gst/gstpad.c
View file

@ -95,6 +95,16 @@ enum
/* FILL ME */
};
#define GST_PAD_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_PAD, GstPadPrivate))
#define GST_PAD_CHAINLISTFUNC(pad) ((pad)->abidata.ABI.priv->chainlistfunc)
struct _GstPadPrivate
{
GstPadChainListFunction chainlistfunc;
};
static void gst_pad_dispose (GObject * object);
static void gst_pad_finalize (GObject * object);
static void gst_pad_set_property (GObject * object, guint prop_id,
@ -230,6 +240,8 @@ gst_pad_class_init (GstPadClass * klass)
gobject_class = G_OBJECT_CLASS (klass);
gstobject_class = GST_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GstPadPrivate));
parent_class = g_type_class_peek_parent (klass);
gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_pad_dispose);
@ -314,6 +326,8 @@ gst_pad_class_init (GstPadClass * klass)
static void
gst_pad_init (GstPad * pad)
{
pad->abidata.ABI.priv = GST_PAD_GET_PRIVATE (pad);
GST_PAD_DIRECTION (pad) = GST_PAD_UNKNOWN;
GST_PAD_PEER (pad) = NULL;

7
gst/gstpad.h
View file

@ -48,6 +48,7 @@ G_BEGIN_DECLS
typedef struct _GstPad GstPad;
typedef struct _GstPadPrivate GstPadPrivate;
typedef struct _GstPadClass GstPadClass;
/**
@ -568,7 +569,6 @@ typedef struct _GstPadTemplate GstPadTemplate;
* @peer: the pad this pad is linked to
* @sched_private: private storage for the scheduler
* @chainfunc: function to chain buffer to pad
* @chainlistfunc: function to chain buffer list to pad
* @checkgetrangefunc: function to check if pad can operate in pull mode
* @getrangefunc: function to get a range of data from a pad
* @eventfunc: function to send an event to a pad
@ -651,7 +651,6 @@ struct _GstPad {
/* ABI added */
/* iterate internal links */
GstPadIterIntLinkFunction iterintlinkfunc;
GstPadChainListFunction chainlistfunc;
/* free block_data */
GDestroyNotify block_destroy_data;
@ -660,8 +659,9 @@ struct _GstPad {
union {
struct {
gboolean block_callback_called;
GstPadPrivate *priv;
} ABI;
gpointer _gst_reserved[GST_PADDING - 3];
gpointer _gst_reserved[GST_PADDING - 2];
} abidata;
};
@ -693,7 +693,6 @@ struct _GstPadClass {
#define GST_PAD_ACTIVATEPUSHFUNC(pad) (GST_PAD_CAST(pad)->activatepushfunc)
#define GST_PAD_ACTIVATEPULLFUNC(pad) (GST_PAD_CAST(pad)->activatepullfunc)
#define GST_PAD_CHAINFUNC(pad) (GST_PAD_CAST(pad)->chainfunc)
#define GST_PAD_CHAINLISTFUNC(pad) (GST_PAD_CAST(pad)->chainlistfunc)
#define GST_PAD_CHECKGETRANGEFUNC(pad) (GST_PAD_CAST(pad)->checkgetrangefunc)
#define GST_PAD_GETRANGEFUNC(pad) (GST_PAD_CAST(pad)->getrangefunc)
#define GST_PAD_EVENTFUNC(pad) (GST_PAD_CAST(pad)->eventfunc)