mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-26 19:51:11 +00:00
531 lines
21 KiB
C
531 lines
21 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wim.taymans@chello.be>
|
|
*
|
|
* gstpad.h: Header for GstPad object
|
|
*
|
|
* 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_PAD_H__
|
|
#define __GST_PAD_H__
|
|
|
|
#include <gst/gstconfig.h>
|
|
|
|
#include <gst/gstobject.h>
|
|
#include <gst/gstbuffer.h>
|
|
#include <gst/gstcaps.h>
|
|
#include <gst/gstevent.h>
|
|
#include <gst/gstprobe.h>
|
|
#include <gst/gstquery.h>
|
|
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
GST_EXPORT GType _gst_pad_type;
|
|
GST_EXPORT GType _gst_real_pad_type;
|
|
GST_EXPORT GType _gst_ghost_pad_type;
|
|
|
|
/*
|
|
* Pad base class
|
|
*/
|
|
#define GST_TYPE_PAD (_gst_pad_type)
|
|
#define GST_IS_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PAD))
|
|
#define GST_IS_PAD_FAST(obj) (G_OBJECT_TYPE(obj) == GST_TYPE_REAL_PAD || \
|
|
G_OBJECT_TYPE(obj) == GST_TYPE_GHOST_PAD)
|
|
#define GST_IS_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PAD))
|
|
#define GST_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PAD, GstPad))
|
|
#define GST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PAD, GstPadClass))
|
|
|
|
/*
|
|
* Real Pads
|
|
*/
|
|
#define GST_TYPE_REAL_PAD (_gst_real_pad_type)
|
|
#define GST_IS_REAL_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_REAL_PAD))
|
|
#define GST_IS_REAL_PAD_FAST(obj) (G_OBJECT_TYPE(obj) == GST_TYPE_REAL_PAD)
|
|
#define GST_IS_REAL_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_REAL_PAD))
|
|
#define GST_REAL_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_REAL_PAD, GstRealPad))
|
|
#define GST_REAL_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_REAL_PAD, GstRealPadClass))
|
|
|
|
/*
|
|
* Ghost Pads
|
|
*/
|
|
#define GST_TYPE_GHOST_PAD (_gst_ghost_pad_type)
|
|
#define GST_IS_GHOST_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GHOST_PAD))
|
|
#define GST_IS_GHOST_PAD_FAST(obj) (G_OBJECT_TYPE(obj) == GST_TYPE_GHOST_PAD)
|
|
#define GST_IS_GHOST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GHOST_PAD))
|
|
#define GST_GHOST_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GHOST_PAD, GstGhostPad))
|
|
#define GST_GHOST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GHOST_PAD, GstGhostPadClass))
|
|
|
|
|
|
/*typedef struct _GstPad GstPad; */
|
|
/*typedef struct _GstPadClass GstPadClass;*/
|
|
typedef struct _GstRealPad GstRealPad;
|
|
typedef struct _GstRealPadClass GstRealPadClass;
|
|
typedef struct _GstGhostPad GstGhostPad;
|
|
typedef struct _GstGhostPadClass GstGhostPadClass;
|
|
/*typedef struct _GstPadTemplate GstPadTemplate;*/
|
|
/*typedef struct _GstPadTemplateClass GstPadTemplateClass;*/
|
|
typedef struct _GstStaticPadTemplate GstStaticPadTemplate;
|
|
typedef struct _GstPadLink GstPadLink;
|
|
|
|
typedef enum {
|
|
GST_PAD_LINK_REFUSED = -1,
|
|
GST_PAD_LINK_DELAYED = 0,
|
|
GST_PAD_LINK_OK = 1,
|
|
GST_PAD_LINK_DONE = 2
|
|
} GstPadLinkReturn;
|
|
|
|
#define GST_PAD_LINK_FAILED(ret) (ret < GST_PAD_LINK_OK)
|
|
#define GST_PAD_LINK_SUCCESSFUL(ret) (ret >= GST_PAD_LINK_OK)
|
|
|
|
/* convenience functions */
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
#ifdef G_HAVE_ISO_VARARGS
|
|
#define GST_PAD_QUERY_TYPE_FUNCTION(functionname, ...) GST_QUERY_TYPE_FUNCTION (GstPad *, functionname, __VA_ARGS__);
|
|
#define GST_PAD_FORMATS_FUNCTION(functionname, ...) GST_FORMATS_FUNCTION (GstPad *, functionname, __VA_ARGS__);
|
|
#define GST_PAD_EVENT_MASK_FUNCTION(functionname, ...) GST_EVENT_MASK_FUNCTION (GstPad *, functionname, __VA_ARGS__);
|
|
#elif defined(G_HAVE_GNUC_VARARGS)
|
|
#define GST_PAD_QUERY_TYPE_FUNCTION(functionname, a...) GST_QUERY_TYPE_FUNCTION (GstPad *, functionname, a);
|
|
#define GST_PAD_FORMATS_FUNCTION(functionname, a...) GST_FORMATS_FUNCTION (GstPad *, functionname, a);
|
|
#define GST_PAD_EVENT_MASK_FUNCTION(functionname, a...) GST_EVENT_MASK_FUNCTION (GstPad *, functionname, a);
|
|
#endif
|
|
#endif
|
|
|
|
|
|
/* this defines the functions used to chain buffers
|
|
* pad is the sink pad (so the same chain function can be used for N pads)
|
|
* buf is the buffer being passed */
|
|
typedef void (*GstPadChainFunction) (GstPad *pad,GstData *data);
|
|
typedef GstData* (*GstPadGetFunction) (GstPad *pad);
|
|
typedef gboolean (*GstPadEventFunction) (GstPad *pad, GstEvent *event);
|
|
typedef gboolean (*GstPadConvertFunction) (GstPad *pad,
|
|
GstFormat src_format, gint64 src_value,
|
|
GstFormat *dest_format, gint64 *dest_value);
|
|
typedef gboolean (*GstPadQueryFunction) (GstPad *pad, GstQueryType type,
|
|
GstFormat *format, gint64 *value);
|
|
typedef GList* (*GstPadIntLinkFunction) (GstPad *pad);
|
|
typedef const GstFormat* (*GstPadFormatsFunction) (GstPad *pad);
|
|
typedef const GstEventMask* (*GstPadEventMaskFunction) (GstPad *pad);
|
|
typedef const GstQueryType* (*GstPadQueryTypeFunction) (GstPad *pad);
|
|
|
|
typedef GstPadLinkReturn (*GstPadLinkFunction) (GstPad *pad, const GstCaps *caps);
|
|
typedef void (*GstPadUnlinkFunction) (GstPad *pad);
|
|
typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad);
|
|
typedef GstCaps* (*GstPadFixateFunction) (GstPad *pad, const GstCaps *caps);
|
|
typedef GstBuffer* (*GstPadBufferAllocFunction) (GstPad *pad, guint64 offset, guint size);
|
|
|
|
typedef gboolean (*GstPadDispatcherFunction) (GstPad *pad, gpointer data);
|
|
|
|
typedef enum {
|
|
GST_PAD_UNKNOWN,
|
|
GST_PAD_SRC,
|
|
GST_PAD_SINK
|
|
} GstPadDirection;
|
|
|
|
typedef enum {
|
|
GST_PAD_DISABLED = GST_OBJECT_FLAG_LAST,
|
|
GST_PAD_NEGOTIATING,
|
|
|
|
GST_PAD_FLAG_LAST = GST_OBJECT_FLAG_LAST + 4
|
|
} GstPadFlags;
|
|
|
|
struct _GstPad {
|
|
GstObject object;
|
|
|
|
gpointer element_private;
|
|
|
|
GstPadTemplate *padtemplate; /* the template for this pad */
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstPadClass {
|
|
GstObjectClass parent_class;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstRealPad {
|
|
GstPad pad;
|
|
|
|
/* the pad capabilities */
|
|
GstCaps *caps;
|
|
GstPadFixateFunction appfixatefunc;
|
|
GstCaps *appfilter;
|
|
GstPadGetCapsFunction getcapsfunc;
|
|
GstPadFixateFunction fixatefunc;
|
|
|
|
GstPadDirection direction;
|
|
|
|
GstPadLinkFunction linkfunc;
|
|
GstPadUnlinkFunction unlinkfunc;
|
|
GstRealPad *peer;
|
|
|
|
gpointer sched_private;
|
|
|
|
/* data transport functions */
|
|
GstPadChainFunction chainfunc;
|
|
GstPadChainFunction chainhandler;
|
|
GstPadGetFunction getfunc;
|
|
GstPadGetFunction gethandler;
|
|
GstPadEventFunction eventfunc;
|
|
GstPadEventFunction eventhandler;
|
|
GstPadEventMaskFunction eventmaskfunc;
|
|
|
|
GList *ghostpads;
|
|
|
|
/* query/convert/formats functions */
|
|
GstPadConvertFunction convertfunc;
|
|
GstPadQueryFunction queryfunc;
|
|
GstPadFormatsFunction formatsfunc;
|
|
GstPadQueryTypeFunction querytypefunc;
|
|
GstPadIntLinkFunction intlinkfunc;
|
|
|
|
GstPadBufferAllocFunction bufferallocfunc;
|
|
|
|
GstProbeDispatcher probedisp;
|
|
|
|
GstPadLink *link;
|
|
GstCaps *explicit_caps;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstRealPadClass {
|
|
GstPadClass parent_class;
|
|
|
|
/* signal callbacks */
|
|
void (*caps_nego_failed) (GstPad *pad, GstCaps *caps);
|
|
|
|
void (*linked) (GstPad *pad, GstPad *peer);
|
|
void (*unlinked) (GstPad *pad, GstPad *peer);
|
|
GstPadFixateFunction appfixatefunc;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstGhostPad {
|
|
GstPad pad;
|
|
|
|
GstRealPad *realpad;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstGhostPadClass {
|
|
GstPadClass parent_class;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
|
|
/***** helper macros *****/
|
|
/* GstPad */
|
|
#define GST_PAD_NAME(pad) (GST_OBJECT_NAME(pad))
|
|
#define GST_PAD_PARENT(pad) ((GstElement *)(GST_OBJECT_PARENT(pad)))
|
|
#define GST_PAD_ELEMENT_PRIVATE(pad) (((GstPad *)(pad))->element_private)
|
|
#define GST_PAD_PAD_TEMPLATE(pad) (((GstPad *)(pad))->padtemplate)
|
|
|
|
/* GstRealPad */
|
|
#define GST_RPAD_DIRECTION(pad) (((GstRealPad *)(pad))->direction)
|
|
#define GST_RPAD_CAPS(pad) (((GstRealPad *)(pad))->caps)
|
|
#define GST_RPAD_APPFILTER(pad) (((GstRealPad *)(pad))->appfilter)
|
|
#define GST_RPAD_PEER(pad) (((GstRealPad *)(pad))->peer)
|
|
#define GST_RPAD_CHAINFUNC(pad) (((GstRealPad *)(pad))->chainfunc)
|
|
#define GST_RPAD_CHAINHANDLER(pad) (((GstRealPad *)(pad))->chainhandler)
|
|
#define GST_RPAD_GETFUNC(pad) (((GstRealPad *)(pad))->getfunc)
|
|
#define GST_RPAD_GETHANDLER(pad) (((GstRealPad *)(pad))->gethandler)
|
|
#define GST_RPAD_EVENTFUNC(pad) (((GstRealPad *)(pad))->eventfunc)
|
|
#define GST_RPAD_EVENTHANDLER(pad) (((GstRealPad *)(pad))->eventhandler)
|
|
#define GST_RPAD_CONVERTFUNC(pad) (((GstRealPad *)(pad))->convertfunc)
|
|
#define GST_RPAD_QUERYFUNC(pad) (((GstRealPad *)(pad))->queryfunc)
|
|
#define GST_RPAD_INTLINKFUNC(pad) (((GstRealPad *)(pad))->intlinkfunc)
|
|
#define GST_RPAD_FORMATSFUNC(pad) (((GstRealPad *)(pad))->formatsfunc)
|
|
#define GST_RPAD_QUERYTYPEFUNC(pad) (((GstRealPad *)(pad))->querytypefunc)
|
|
#define GST_RPAD_EVENTMASKFUNC(pad) (((GstRealPad *)(pad))->eventmaskfunc)
|
|
|
|
#define GST_RPAD_LINKFUNC(pad) (((GstRealPad *)(pad))->linkfunc)
|
|
#define GST_RPAD_UNLINKFUNC(pad) (((GstRealPad *)(pad))->unlinkfunc)
|
|
#define GST_RPAD_GETCAPSFUNC(pad) (((GstRealPad *)(pad))->getcapsfunc)
|
|
#define GST_RPAD_FIXATEFUNC(pad) (((GstRealPad *)(pad))->fixatefunc)
|
|
#define GST_RPAD_BUFFERALLOCFUNC(pad) (((GstRealPad *)(pad))->bufferallocfunc)
|
|
#define GST_RPAD_LINK(pad) (((GstRealPad *)(pad))->link)
|
|
#define GST_RPAD_EXPLICIT_CAPS(pad) (((GstRealPad *)(pad))->explicit_caps)
|
|
|
|
/* GstGhostPad */
|
|
#define GST_GPAD_REALPAD(pad) (((GstGhostPad *)(pad))->realpad)
|
|
|
|
/* Generic */
|
|
#define GST_PAD_REALIZE(pad) (GST_IS_REAL_PAD(pad) ? ((GstRealPad *)(pad)) : GST_GPAD_REALPAD(pad))
|
|
#define GST_PAD_DIRECTION(pad) GST_RPAD_DIRECTION(GST_PAD_REALIZE(pad))
|
|
#define GST_PAD_CAPS(pad) (gst_pad_get_negotiated_caps(GST_PAD (pad)))
|
|
#define GST_PAD_PEER(pad) GST_PAD(GST_RPAD_PEER(GST_PAD_REALIZE(pad)))
|
|
|
|
/* Some check functions (unused?) */
|
|
#define GST_PAD_IS_LINKED(pad) (GST_PAD_PEER(pad) != NULL)
|
|
#define GST_PAD_IS_ACTIVE(pad) (!GST_FLAG_IS_SET(GST_PAD_REALIZE(pad), GST_PAD_DISABLED))
|
|
#define GST_PAD_IS_NEGOTIATING(pad) (GST_FLAG_IS_SET (pad, GST_PAD_NEGOTIATING))
|
|
#define GST_PAD_IS_USABLE(pad) (GST_PAD_IS_LINKED (pad) && \
|
|
GST_PAD_IS_ACTIVE(pad) && GST_PAD_IS_ACTIVE(GST_PAD_PEER (pad)))
|
|
#define GST_PAD_CAN_PULL(pad) (GST_IS_REAL_PAD(pad) && GST_REAL_PAD(pad)->gethandler != NULL)
|
|
#define GST_PAD_IS_SRC(pad) (GST_PAD_DIRECTION(pad) == GST_PAD_SRC)
|
|
#define GST_PAD_IS_SINK(pad) (GST_PAD_DIRECTION(pad) == GST_PAD_SINK)
|
|
|
|
/***** PadTemplate *****/
|
|
#define GST_TYPE_PAD_TEMPLATE (gst_pad_template_get_type ())
|
|
#define GST_PAD_TEMPLATE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PAD_TEMPLATE,GstPadTemplate))
|
|
#define GST_PAD_TEMPLATE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PAD_TEMPLATE,GstPadTemplateClass))
|
|
#define GST_IS_PAD_TEMPLATE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PAD_TEMPLATE))
|
|
#define GST_IS_PAD_TEMPLATE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PAD_TEMPLATE))
|
|
|
|
typedef enum {
|
|
GST_PAD_ALWAYS,
|
|
GST_PAD_SOMETIMES,
|
|
GST_PAD_REQUEST
|
|
} GstPadPresence;
|
|
|
|
#define GST_PAD_TEMPLATE_NAME_TEMPLATE(templ) (((GstPadTemplate *)(templ))->name_template)
|
|
#define GST_PAD_TEMPLATE_DIRECTION(templ) (((GstPadTemplate *)(templ))->direction)
|
|
#define GST_PAD_TEMPLATE_PRESENCE(templ) (((GstPadTemplate *)(templ))->presence)
|
|
#define GST_PAD_TEMPLATE_CAPS(templ) (((GstPadTemplate *)(templ))->caps)
|
|
|
|
typedef enum {
|
|
GST_PAD_TEMPLATE_FIXED = GST_OBJECT_FLAG_LAST,
|
|
|
|
GST_PAD_TEMPLATE_FLAG_LAST = GST_OBJECT_FLAG_LAST + 4
|
|
} GstPadTemplateFlags;
|
|
|
|
#define GST_PAD_TEMPLATE_IS_FIXED(templ) (GST_FLAG_IS_SET(templ, GST_PAD_TEMPLATE_FIXED))
|
|
|
|
struct _GstPadTemplate {
|
|
GstObject object;
|
|
|
|
gchar *name_template;
|
|
GstPadDirection direction;
|
|
GstPadPresence presence;
|
|
GstCaps *caps;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstPadTemplateClass {
|
|
GstObjectClass parent_class;
|
|
|
|
/* signal callbacks */
|
|
void (*pad_created) (GstPadTemplate *templ, GstPad *pad);
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstStaticPadTemplate {
|
|
gchar *name_template;
|
|
GstPadDirection direction;
|
|
GstPadPresence presence;
|
|
GstStaticCaps static_caps;
|
|
};
|
|
|
|
#define GST_STATIC_PAD_TEMPLATE(padname, dir, pres, caps) \
|
|
{ \
|
|
/* name_template */ padname, \
|
|
/* direction */ dir, \
|
|
/* presence */ pres, \
|
|
/* caps */ caps \
|
|
}
|
|
|
|
|
|
GType gst_pad_get_type (void);
|
|
GType gst_real_pad_get_type (void);
|
|
GType gst_ghost_pad_get_type (void);
|
|
|
|
/* creating pads */
|
|
GstPad* gst_pad_new (const gchar *name, GstPadDirection direction);
|
|
GstPad* gst_pad_new_from_template (GstPadTemplate *templ, const gchar *name);
|
|
GstPad* gst_pad_custom_new (GType type, const gchar *name, GstPadDirection direction);
|
|
GstPad* gst_pad_custom_new_from_template (GType type, GstPadTemplate *templ, const gchar *name);
|
|
|
|
void gst_pad_set_name (GstPad *pad, const gchar *name);
|
|
G_CONST_RETURN gchar* gst_pad_get_name (GstPad *pad);
|
|
|
|
GstPadDirection gst_pad_get_direction (GstPad *pad);
|
|
|
|
void gst_pad_set_active (GstPad *pad, gboolean active);
|
|
gboolean gst_pad_is_active (GstPad *pad);
|
|
|
|
void gst_pad_set_element_private (GstPad *pad, gpointer priv);
|
|
gpointer gst_pad_get_element_private (GstPad *pad);
|
|
|
|
void gst_pad_set_parent (GstPad *pad, GstElement *parent);
|
|
GstElement* gst_pad_get_parent (GstPad *pad);
|
|
GstElement* gst_pad_get_real_parent (GstPad *pad);
|
|
|
|
GstScheduler* gst_pad_get_scheduler (GstPad *pad);
|
|
|
|
void gst_pad_add_ghost_pad (GstPad *pad, GstPad *ghostpad);
|
|
void gst_pad_remove_ghost_pad (GstPad *pad, GstPad *ghostpad);
|
|
GList* gst_pad_get_ghost_pad_list (GstPad *pad);
|
|
|
|
GstPadTemplate* gst_pad_get_pad_template (GstPad *pad);
|
|
|
|
void gst_pad_set_bufferalloc_function (GstPad *pad, GstPadBufferAllocFunction bufalloc);
|
|
GstBuffer* gst_pad_alloc_buffer (GstPad *pad, guint64 offset, gint size);
|
|
|
|
/* data passing setup functions */
|
|
void gst_pad_set_chain_function (GstPad *pad, GstPadChainFunction chain);
|
|
void gst_pad_set_get_function (GstPad *pad, GstPadGetFunction get);
|
|
void gst_pad_set_event_function (GstPad *pad, GstPadEventFunction event);
|
|
void gst_pad_set_event_mask_function (GstPad *pad, GstPadEventMaskFunction mask_func);
|
|
G_CONST_RETURN GstEventMask*
|
|
gst_pad_get_event_masks (GstPad *pad);
|
|
G_CONST_RETURN GstEventMask*
|
|
gst_pad_get_event_masks_default (GstPad *pad);
|
|
|
|
/* pad links */
|
|
void gst_pad_set_link_function (GstPad *pad, GstPadLinkFunction link);
|
|
gboolean gst_pad_can_link (GstPad *srcpad, GstPad *sinkpad);
|
|
gboolean gst_pad_can_link_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
|
|
void gst_pad_set_unlink_function (GstPad *pad, GstPadUnlinkFunction unlink);
|
|
|
|
gboolean gst_pad_link (GstPad *srcpad, GstPad *sinkpad);
|
|
gboolean gst_pad_link_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
|
|
void gst_pad_unlink (GstPad *srcpad, GstPad *sinkpad);
|
|
gboolean gst_pad_is_linked (GstPad *pad);
|
|
|
|
GstPad* gst_pad_get_peer (GstPad *pad);
|
|
|
|
/* capsnego functions */
|
|
G_CONST_RETURN GstCaps* gst_pad_get_negotiated_caps (GstPad *pad);
|
|
gboolean gst_pad_is_negotiated (GstPad *pad);
|
|
GstCaps* gst_pad_get_caps (GstPad *pad);
|
|
G_CONST_RETURN GstCaps* gst_pad_get_pad_template_caps (GstPad *pad);
|
|
GstPadLinkReturn gst_pad_try_set_caps (GstPad *pad, const GstCaps *caps);
|
|
GstPadLinkReturn gst_pad_try_set_caps_nonfixed (GstPad *pad, const GstCaps *caps);
|
|
gboolean gst_pad_check_compatibility (GstPad *srcpad, GstPad *sinkpad);
|
|
|
|
void gst_pad_set_getcaps_function (GstPad *pad, GstPadGetCapsFunction getcaps);
|
|
void gst_pad_set_fixate_function (GstPad *pad, GstPadFixateFunction fixate);
|
|
GstCaps * gst_pad_proxy_getcaps (GstPad *pad);
|
|
GstPadLinkReturn gst_pad_proxy_pad_link (GstPad *pad, const GstCaps *caps);
|
|
GstCaps * gst_pad_proxy_fixate (GstPad *pad, const GstCaps *caps);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
GstPadLinkReturn gst_pad_proxy_link (GstPad *pad, const GstCaps *caps);
|
|
#endif
|
|
gboolean gst_pad_set_explicit_caps (GstPad *pad, const GstCaps *caps);
|
|
void gst_pad_use_explicit_caps (GstPad *pad);
|
|
gboolean gst_pad_relink_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
gboolean gst_pad_perform_negotiate (GstPad *srcpad, GstPad *sinkpad);
|
|
#endif
|
|
GstPadLinkReturn gst_pad_renegotiate (GstPad *pad);
|
|
void gst_pad_unnegotiate (GstPad *pad);
|
|
gboolean gst_pad_try_relink_filtered (GstPad *srcpad, GstPad *sinkpad, const GstCaps *filtercaps);
|
|
GstCaps* gst_pad_get_allowed_caps (GstPad *pad);
|
|
void gst_pad_caps_change_notify (GstPad *pad);
|
|
|
|
gboolean gst_pad_recover_caps_error (GstPad *pad, const GstCaps *allowed);
|
|
|
|
/* data passing functions */
|
|
void gst_pad_push (GstPad *pad, GstData *data);
|
|
GstData* gst_pad_pull (GstPad *pad);
|
|
gboolean gst_pad_send_event (GstPad *pad, GstEvent *event);
|
|
gboolean gst_pad_event_default (GstPad *pad, GstEvent *event);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
GstPad* gst_pad_selectv (GList *padlist);
|
|
GstPad* gst_pad_select (GstPad *pad, ...);
|
|
GstPad* gst_pad_select_valist (GstPad *pad, va_list varargs);
|
|
#endif
|
|
/* FIXME 0.9: rename to _select? Otherwise rename SchedulerClass pointer */
|
|
GstData * gst_pad_collectv (GstPad **selected, const GList *padlist);
|
|
GstData * gst_pad_collect (GstPad **selected, GstPad *pad, ...);
|
|
GstData * gst_pad_collect_valist (GstPad **selected, GstPad *pad, va_list varargs);
|
|
|
|
/* convert/query/format functions */
|
|
void gst_pad_set_formats_function (GstPad *pad,
|
|
GstPadFormatsFunction formats);
|
|
G_CONST_RETURN GstFormat*
|
|
gst_pad_get_formats (GstPad *pad);
|
|
G_CONST_RETURN GstFormat*
|
|
gst_pad_get_formats_default (GstPad *pad);
|
|
|
|
void gst_pad_set_convert_function (GstPad *pad, GstPadConvertFunction convert);
|
|
gboolean gst_pad_convert (GstPad *pad,
|
|
GstFormat src_format, gint64 src_value,
|
|
GstFormat *dest_format, gint64 *dest_value);
|
|
gboolean gst_pad_convert_default (GstPad *pad,
|
|
GstFormat src_format, gint64 src_value,
|
|
GstFormat *dest_format, gint64 *dest_value);
|
|
|
|
void gst_pad_set_query_function (GstPad *pad, GstPadQueryFunction query);
|
|
void gst_pad_set_query_type_function (GstPad *pad, GstPadQueryTypeFunction type_func);
|
|
G_CONST_RETURN GstQueryType*
|
|
gst_pad_get_query_types (GstPad *pad);
|
|
G_CONST_RETURN GstQueryType*
|
|
gst_pad_get_query_types_default (GstPad *pad);
|
|
gboolean gst_pad_query (GstPad *pad, GstQueryType type,
|
|
GstFormat *format, gint64 *value);
|
|
gboolean gst_pad_query_default (GstPad *pad, GstQueryType type,
|
|
GstFormat *format, gint64 *value);
|
|
|
|
void gst_pad_set_internal_link_function (GstPad *pad, GstPadIntLinkFunction intlink);
|
|
GList* gst_pad_get_internal_links (GstPad *pad);
|
|
GList* gst_pad_get_internal_links_default (GstPad *pad);
|
|
|
|
/* misc helper functions */
|
|
gboolean gst_pad_dispatcher (GstPad *pad, GstPadDispatcherFunction dispatch,
|
|
gpointer data);
|
|
|
|
#define gst_pad_add_probe(pad, probe) \
|
|
(gst_probe_dispatcher_add_probe (&(GST_REAL_PAD (pad)->probedisp), probe))
|
|
#define gst_pad_remove_probe(pad, probe) \
|
|
(gst_probe_dispatcher_remove_probe (&(GST_REAL_PAD (pad)->probedisp), probe))
|
|
|
|
#ifndef GST_DISABLE_LOADSAVE
|
|
void gst_pad_load_and_link (xmlNodePtr self, GstObject *parent);
|
|
#endif
|
|
|
|
|
|
/* ghostpads */
|
|
GstPad* gst_ghost_pad_new (const gchar *name, GstPad *pad);
|
|
|
|
|
|
/* templates and factories */
|
|
GType gst_pad_template_get_type (void);
|
|
|
|
GstPadTemplate* gst_pad_template_new (const gchar *name_template,
|
|
GstPadDirection direction, GstPadPresence presence,
|
|
GstCaps *caps);
|
|
|
|
GstPadTemplate * gst_static_pad_template_get (GstStaticPadTemplate *pad_template);
|
|
const GstCaps* gst_pad_template_get_caps (GstPadTemplate *templ);
|
|
#ifndef GST_DISABLE_DEPRECATED
|
|
const GstCaps* gst_pad_template_get_caps_by_name (GstPadTemplate *templ, const gchar *name);
|
|
#endif
|
|
|
|
#ifndef GST_DISABLE_LOADSAVE
|
|
xmlNodePtr gst_ghost_pad_save_thyself (GstPad *pad,
|
|
xmlNodePtr parent);
|
|
#endif
|
|
|
|
/* for schedulers only */
|
|
void gst_pad_call_chain_function (GstPad *pad, GstData *data);
|
|
GstData * gst_pad_call_get_function (GstPad *pad);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
|
|
#endif /* __GST_PAD_H__ */
|