mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-19 14:56:36 +00:00
de3be844ec
Original commit message from CVS: * gst/base/gstbasesink.c: (gst_basesink_set_pad_functions), (gst_basesink_preroll_queue_flush): * gst/base/gstbasesrc.c: (gst_basesrc_set_dataflow_funcs): * gst/elements/gsttee.c: (gst_tee_update_pad_functions): * gst/gstghostpad.c: (gst_proxy_pad_do_bufferalloc), (gst_proxy_pad_do_acceptcaps), (gst_proxy_pad_do_fixatecaps), (gst_proxy_pad_set_property): * gst/gstpad.c: * gst/gstpad.h: * gst/gstqueue.c: (gst_queue_init): The deprecated pad loop function is removed now.
486 lines
19 KiB
C
486 lines
19 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>
|
|
#include <gst/gstqueryutils.h>
|
|
#include <gst/gsttask.h>
|
|
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
GST_EXPORT GType _gst_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_PAD) /* necessary? */
|
|
#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))
|
|
#define GST_PAD_CAST(obj) ((GstPad*)(obj))
|
|
|
|
|
|
/* why are these in gsttypes, again? */
|
|
/*typedef struct _GstPad GstPad;*/
|
|
/*typedef struct _GstPadClass GstPadClass;*/
|
|
/*typedef struct _GstPadTemplate GstPadTemplate;*/
|
|
/*typedef struct _GstPadTemplateClass GstPadTemplateClass;*/
|
|
typedef struct _GstStaticPadTemplate GstStaticPadTemplate;
|
|
|
|
typedef enum {
|
|
GST_PAD_LINK_NOSCHED = -5, /* pads cannot cooperate in scheduling */
|
|
GST_PAD_LINK_NOFORMAT = -4, /* pads do not have common format */
|
|
GST_PAD_LINK_REFUSED = -3, /* refused for some reason */
|
|
GST_PAD_LINK_WRONG_DIRECTION = -2, /* pads have wrong direction */
|
|
GST_PAD_LINK_WAS_LINKED = -1, /* pad was already linked */
|
|
GST_PAD_LINK_OK = 0, /* link ok */
|
|
} GstPadLinkReturn;
|
|
|
|
#define GST_PAD_LINK_FAILED(ret) ((ret) < GST_PAD_LINK_OK)
|
|
#define GST_PAD_LINK_SUCCESSFUL(ret) ((ret) >= GST_PAD_LINK_OK)
|
|
|
|
typedef enum {
|
|
GST_FLOW_OK = 0, /* data passing was ok */
|
|
GST_FLOW_RESEND = 1, /* resend buffer, possibly with new caps */
|
|
GST_FLOW_ERROR = -1, /* some (fatal) error occured */
|
|
GST_FLOW_NOT_LINKED = -2, /* pad is not linked */
|
|
GST_FLOW_NOT_NEGOTIATED = -3, /* pad is not negotiated */
|
|
GST_FLOW_WRONG_STATE = -4, /* pad is in wrong state */
|
|
GST_FLOW_UNEXPECTED = -5, /* did not expect anything, this is not fatal */
|
|
GST_FLOW_NOT_SUPPORTED = -6 /* function not supported */
|
|
} GstFlowReturn;
|
|
|
|
typedef enum {
|
|
GST_ACTIVATE_NONE,
|
|
GST_ACTIVATE_PUSH,
|
|
GST_ACTIVATE_PULL,
|
|
} GstActivateMode;
|
|
|
|
#define GST_PAD_MODE_ACTIVATE(mode) ((mode) != GST_ACTIVATE_NONE)
|
|
|
|
/* pad states */
|
|
typedef gboolean (*GstPadActivateFunction) (GstPad *pad);
|
|
typedef gboolean (*GstPadActivateModeFunction) (GstPad *pad, gboolean active);
|
|
|
|
/* data passing */
|
|
typedef GstFlowReturn (*GstPadChainFunction) (GstPad *pad, GstBuffer *buffer);
|
|
typedef GstFlowReturn (*GstPadGetRangeFunction) (GstPad *pad, guint64 offset,
|
|
guint length, GstBuffer **buffer);
|
|
typedef gboolean (*GstPadEventFunction) (GstPad *pad, GstEvent *event);
|
|
|
|
/* deprecate me, check range should use seeking query */
|
|
typedef gboolean (*GstPadCheckGetRangeFunction) (GstPad *pad);
|
|
|
|
/* internal links */
|
|
typedef GList* (*GstPadIntLinkFunction) (GstPad *pad);
|
|
|
|
/* generic query function */
|
|
typedef const GstQueryType* (*GstPadQueryTypeFunction) (GstPad *pad);
|
|
typedef gboolean (*GstPadQueryFunction) (GstPad *pad, GstQuery *query);
|
|
|
|
/* linking */
|
|
typedef GstPadLinkReturn (*GstPadLinkFunction) (GstPad *pad, GstPad *peer);
|
|
typedef void (*GstPadUnlinkFunction) (GstPad *pad);
|
|
|
|
/* caps nego */
|
|
typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad);
|
|
typedef gboolean (*GstPadSetCapsFunction) (GstPad *pad, GstCaps *caps);
|
|
typedef gboolean (*GstPadAcceptCapsFunction) (GstPad *pad, GstCaps *caps);
|
|
typedef GstCaps* (*GstPadFixateCapsFunction) (GstPad *pad, GstCaps *caps);
|
|
typedef GstFlowReturn (*GstPadBufferAllocFunction) (GstPad *pad, guint64 offset, guint size,
|
|
GstCaps *caps, GstBuffer **buf);
|
|
/* misc */
|
|
typedef gboolean (*GstPadDispatcherFunction) (GstPad *pad, gpointer data);
|
|
|
|
typedef void (*GstPadBlockCallback) (GstPad *pad, gboolean blocked, gpointer user_data);
|
|
|
|
typedef enum {
|
|
GST_PAD_UNKNOWN,
|
|
GST_PAD_SRC,
|
|
GST_PAD_SINK
|
|
} GstPadDirection;
|
|
|
|
typedef enum {
|
|
GST_PAD_BLOCKED = GST_OBJECT_FLAG_LAST,
|
|
GST_PAD_FLUSHING,
|
|
GST_PAD_IN_GETCAPS,
|
|
GST_PAD_IN_SETCAPS,
|
|
|
|
GST_PAD_FLAG_LAST = GST_OBJECT_FLAG_LAST + 8
|
|
} GstPadFlags;
|
|
|
|
struct _GstPad {
|
|
GstObject object;
|
|
|
|
gpointer element_private;
|
|
|
|
GstPadTemplate *padtemplate;
|
|
|
|
/* direction cannot change after creating the pad */
|
|
GstPadDirection direction;
|
|
|
|
/*< public >*/ /* with STREAM_LOCK */
|
|
/* streaming rec_lock */
|
|
GStaticRecMutex *stream_rec_lock;
|
|
GstTask *task;
|
|
/*< public >*/ /* with PREROLL_LOCK */
|
|
GMutex *preroll_lock;
|
|
GCond *preroll_cond;
|
|
|
|
/*< public >*/ /* with LOCK */
|
|
/* block cond, mutex is from the object */
|
|
GCond *block_cond;
|
|
GstPadBlockCallback block_callback;
|
|
gpointer block_data;
|
|
|
|
/* the pad capabilities */
|
|
GstCaps *caps;
|
|
GstPadGetCapsFunction getcapsfunc;
|
|
GstPadSetCapsFunction setcapsfunc;
|
|
GstPadAcceptCapsFunction acceptcapsfunc;
|
|
GstPadFixateCapsFunction fixatecapsfunc;
|
|
|
|
GstPadActivateFunction activatefunc;
|
|
GstPadActivateModeFunction activatepushfunc;
|
|
GstPadActivateModeFunction activatepullfunc;
|
|
|
|
/* pad link */
|
|
GstPadLinkFunction linkfunc;
|
|
GstPadUnlinkFunction unlinkfunc;
|
|
GstPad *peer;
|
|
|
|
gpointer sched_private;
|
|
|
|
/* data transport functions */
|
|
GstPadChainFunction chainfunc;
|
|
GstPadCheckGetRangeFunction checkgetrangefunc;
|
|
GstPadGetRangeFunction getrangefunc;
|
|
GstPadEventFunction eventfunc;
|
|
|
|
GstActivateMode mode;
|
|
|
|
/* generic query method */
|
|
GstPadQueryTypeFunction querytypefunc;
|
|
GstPadQueryFunction queryfunc;
|
|
|
|
/* internal links */
|
|
GstPadIntLinkFunction intlinkfunc;
|
|
|
|
GstPadBufferAllocFunction bufferallocfunc;
|
|
|
|
GstProbeDispatcher probedisp;
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstPadClass {
|
|
GstObjectClass parent_class;
|
|
|
|
/* signal callbacks */
|
|
void (*linked) (GstPad *pad, GstPad *peer);
|
|
void (*unlinked) (GstPad *pad, GstPad *peer);
|
|
void (*request_link) (GstPad *pad);
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
|
|
/***** helper macros *****/
|
|
/* GstPad */
|
|
#define GST_PAD_NAME(pad) (GST_OBJECT_NAME(pad))
|
|
#define GST_PAD_PARENT(pad) (GST_ELEMENT_CAST(GST_OBJECT_PARENT(pad)))
|
|
#define GST_PAD_ELEMENT_PRIVATE(pad) (GST_PAD_CAST(pad)->element_private)
|
|
#define GST_PAD_PAD_TEMPLATE(pad) (GST_PAD_CAST(pad)->padtemplate)
|
|
#define GST_PAD_DIRECTION(pad) (GST_PAD_CAST(pad)->direction)
|
|
#define GST_PAD_TASK(pad) (GST_PAD_CAST(pad)->task)
|
|
#define GST_PAD_ACTIVATE_MODE(pad) (GST_PAD_CAST(pad)->mode)
|
|
|
|
#define GST_PAD_ACTIVATEFUNC(pad) (GST_PAD_CAST(pad)->activatefunc)
|
|
#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_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)
|
|
#define GST_PAD_QUERYTYPEFUNC(pad) (GST_PAD_CAST(pad)->querytypefunc)
|
|
#define GST_PAD_QUERYFUNC(pad) (GST_PAD_CAST(pad)->queryfunc)
|
|
#define GST_PAD_INTLINKFUNC(pad) (GST_PAD_CAST(pad)->intlinkfunc)
|
|
|
|
#define GST_PAD_PEER(pad) (GST_PAD_CAST(pad)->peer)
|
|
#define GST_PAD_LINKFUNC(pad) (GST_PAD_CAST(pad)->linkfunc)
|
|
#define GST_PAD_UNLINKFUNC(pad) (GST_PAD_CAST(pad)->unlinkfunc)
|
|
|
|
#define GST_PAD_CAPS(pad) (GST_PAD_CAST(pad)->caps)
|
|
#define GST_PAD_GETCAPSFUNC(pad) (GST_PAD_CAST(pad)->getcapsfunc)
|
|
#define GST_PAD_SETCAPSFUNC(pad) (GST_PAD_CAST(pad)->setcapsfunc)
|
|
#define GST_PAD_ACCEPTCAPSFUNC(pad) (GST_PAD_CAST(pad)->acceptcapsfunc)
|
|
#define GST_PAD_FIXATECAPSFUNC(pad) (GST_PAD_CAST(pad)->fixatecapsfunc)
|
|
|
|
#define GST_PAD_BUFFERALLOCFUNC(pad) (GST_PAD_CAST(pad)->bufferallocfunc)
|
|
|
|
#define GST_PAD_IS_LINKED(pad) (GST_PAD_PEER(pad) != NULL)
|
|
#define GST_PAD_IS_BLOCKED(pad) (GST_FLAG_IS_SET (pad, GST_PAD_BLOCKED))
|
|
#define GST_PAD_IS_FLUSHING(pad) (GST_FLAG_IS_SET (pad, GST_PAD_FLUSHING))
|
|
#define GST_PAD_IS_IN_GETCAPS(pad) (GST_FLAG_IS_SET (pad, GST_PAD_IN_GETCAPS))
|
|
#define GST_PAD_IS_IN_SETCAPS(pad) (GST_FLAG_IS_SET (pad, GST_PAD_IN_SETCAPS))
|
|
#define GST_PAD_IS_USABLE(pad) (GST_PAD_IS_LINKED (pad) && \
|
|
!GST_PAD_IS_FLUSHING(pad) && !GST_PAD_IS_FLUSHING(GST_PAD_PEER (pad)))
|
|
#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)
|
|
|
|
#define GST_PAD_SET_FLUSHING(pad) (GST_FLAG_SET (pad, GST_PAD_FLUSHING))
|
|
#define GST_PAD_UNSET_FLUSHING(pad) (GST_FLAG_UNSET (pad, GST_PAD_FLUSHING))
|
|
|
|
#define GST_STREAM_GET_LOCK(pad) (GST_PAD_CAST(pad)->stream_rec_lock)
|
|
#define GST_STREAM_LOCK(pad) (g_static_rec_mutex_lock(GST_STREAM_GET_LOCK(pad)))
|
|
#define GST_STREAM_TRYLOCK(pad) (g_static_rec_mutex_trylock(GST_STREAM_GET_LOCK(pad)))
|
|
#define GST_STREAM_UNLOCK(pad) (g_static_rec_mutex_unlock(GST_STREAM_GET_LOCK(pad)))
|
|
#define GST_STREAM_UNLOCK_FULL(pad) (g_static_rec_mutex_unlock_full(GST_STREAM_GET_LOCK(pad)))
|
|
#define GST_STREAM_LOCK_FULL(pad,t) (g_static_rec_mutex_lock_full(GST_STREAM_GET_LOCK(pad), t))
|
|
|
|
#define GST_PREROLL_GET_LOCK(pad) (GST_PAD_CAST(pad)->preroll_lock)
|
|
#define GST_PREROLL_LOCK(pad) (g_mutex_lock(GST_PREROLL_GET_LOCK(pad)))
|
|
#define GST_PREROLL_TRYLOCK(pad) (g_mutex_trylock(GST_PREROLL_GET_LOCK(pad)))
|
|
#define GST_PREROLL_UNLOCK(pad) (g_mutex_unlock(GST_PREROLL_GET_LOCK(pad)))
|
|
#define GST_PREROLL_GET_COND(pad) (GST_PAD_CAST(pad)->preroll_cond)
|
|
#define GST_PREROLL_WAIT(pad) g_cond_wait (GST_PREROLL_GET_COND (pad), GST_PREROLL_GET_LOCK (pad))
|
|
#define GST_PREROLL_TIMED_WAIT(pad, timeval) g_cond_timed_wait (GST_PREROLL_GET_COND (pad), GST_PREROLL_GET_LOCK (pad),\
|
|
timeval)
|
|
#define GST_PREROLL_SIGNAL(pad) g_cond_signal (GST_PREROLL_GET_COND (pad));
|
|
#define GST_PREROLL_BROADCAST(pad) g_cond_broadcast (GST_PREROLL_GET_COND (pad));
|
|
|
|
#define GST_PAD_BLOCK_GET_COND(pad) (GST_PAD_CAST(pad)->block_cond)
|
|
#define GST_PAD_BLOCK_WAIT(pad) (g_cond_wait(GST_PAD_BLOCK_GET_COND (pad), GST_GET_LOCK (pad)))
|
|
#define GST_PAD_BLOCK_SIGNAL(pad) (g_cond_signal(GST_PAD_BLOCK_GET_COND (pad)))
|
|
|
|
/***** 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);
|
|
|
|
/* creating pads */
|
|
GstPad* gst_pad_new (const gchar *name, GstPadDirection direction);
|
|
GstPad* gst_pad_new_from_template (GstPadTemplate *templ, const gchar *name);
|
|
|
|
#define gst_pad_get_name(pad) gst_object_get_name (GST_OBJECT_CAST (pad))
|
|
GstElement* gst_pad_get_parent (GstPad *pad);
|
|
|
|
GstPadDirection gst_pad_get_direction (GstPad *pad);
|
|
|
|
gboolean gst_pad_set_active (GstPad *pad, gboolean active);
|
|
gboolean gst_pad_is_active (GstPad *pad);
|
|
gboolean gst_pad_activate_pull (GstPad *pad, gboolean active);
|
|
gboolean gst_pad_activate_push (GstPad *pad, gboolean active);
|
|
|
|
gboolean gst_pad_set_blocked (GstPad *pad, gboolean blocked);
|
|
gboolean gst_pad_set_blocked_async (GstPad *pad, gboolean blocked,
|
|
GstPadBlockCallback callback, gpointer user_data);
|
|
gboolean gst_pad_is_blocked (GstPad *pad);
|
|
|
|
void gst_pad_set_element_private (GstPad *pad, gpointer priv);
|
|
gpointer gst_pad_get_element_private (GstPad *pad);
|
|
|
|
GstPadTemplate* gst_pad_get_pad_template (GstPad *pad);
|
|
|
|
void gst_pad_set_bufferalloc_function (GstPad *pad, GstPadBufferAllocFunction bufalloc);
|
|
GstFlowReturn gst_pad_alloc_buffer (GstPad *pad, guint64 offset, gint size,
|
|
GstCaps *caps, GstBuffer **buf);
|
|
|
|
/* data passing setup functions */
|
|
void gst_pad_set_activate_function (GstPad *pad, GstPadActivateFunction activate);
|
|
void gst_pad_set_activatepull_function (GstPad *pad, GstPadActivateModeFunction activatepull);
|
|
void gst_pad_set_activatepush_function (GstPad *pad, GstPadActivateModeFunction activatepush);
|
|
void gst_pad_set_chain_function (GstPad *pad, GstPadChainFunction chain);
|
|
void gst_pad_set_getrange_function (GstPad *pad, GstPadGetRangeFunction get);
|
|
void gst_pad_set_checkgetrange_function (GstPad *pad, GstPadCheckGetRangeFunction check);
|
|
void gst_pad_set_event_function (GstPad *pad, GstPadEventFunction event);
|
|
|
|
/* pad links */
|
|
void gst_pad_set_link_function (GstPad *pad, GstPadLinkFunction link);
|
|
void gst_pad_set_unlink_function (GstPad *pad, GstPadUnlinkFunction unlink);
|
|
|
|
GstPadLinkReturn gst_pad_link (GstPad *srcpad, GstPad *sinkpad);
|
|
gboolean gst_pad_unlink (GstPad *srcpad, GstPad *sinkpad);
|
|
gboolean gst_pad_is_linked (GstPad *pad);
|
|
|
|
GstPad* gst_pad_get_peer (GstPad *pad);
|
|
|
|
/* capsnego functions */
|
|
void gst_pad_set_getcaps_function (GstPad *pad, GstPadGetCapsFunction getcaps);
|
|
void gst_pad_set_acceptcaps_function (GstPad *pad, GstPadAcceptCapsFunction acceptcaps);
|
|
void gst_pad_set_fixatecaps_function (GstPad *pad, GstPadFixateCapsFunction fixatecaps);
|
|
void gst_pad_set_setcaps_function (GstPad *pad, GstPadSetCapsFunction setcaps);
|
|
|
|
G_CONST_RETURN GstCaps* gst_pad_get_pad_template_caps (GstPad *pad);
|
|
|
|
/* capsnego function for connected/unconnected pads */
|
|
GstCaps * gst_pad_get_caps (GstPad * pad);
|
|
GstCaps* gst_pad_fixate_caps (GstPad * pad, GstCaps *caps);
|
|
gboolean gst_pad_accept_caps (GstPad * pad, GstCaps *caps);
|
|
gboolean gst_pad_set_caps (GstPad * pad, GstCaps *caps);
|
|
|
|
GstCaps * gst_pad_peer_get_caps (GstPad * pad);
|
|
gboolean gst_pad_peer_accept_caps (GstPad * pad, GstCaps *caps);
|
|
|
|
/* capsnego for connected pads */
|
|
GstCaps * gst_pad_get_allowed_caps (GstPad * srcpad);
|
|
GstCaps * gst_pad_get_negotiated_caps (GstPad * pad);
|
|
|
|
/* data passing functions to peer */
|
|
GstFlowReturn gst_pad_push (GstPad *pad, GstBuffer *buffer);
|
|
gboolean gst_pad_check_pull_range (GstPad *pad);
|
|
GstFlowReturn gst_pad_pull_range (GstPad *pad, guint64 offset, guint size,
|
|
GstBuffer **buffer);
|
|
gboolean gst_pad_push_event (GstPad *pad, GstEvent *event);
|
|
gboolean gst_pad_event_default (GstPad *pad, GstEvent *event);
|
|
|
|
/* data passing functions on pad */
|
|
GstFlowReturn gst_pad_chain (GstPad *pad, GstBuffer *buffer);
|
|
GstFlowReturn gst_pad_get_range (GstPad *pad, guint64 offset, guint size,
|
|
GstBuffer **buffer);
|
|
gboolean gst_pad_send_event (GstPad *pad, GstEvent *event);
|
|
|
|
/* pad tasks */
|
|
gboolean gst_pad_start_task (GstPad *pad, GstTaskFunction func,
|
|
gpointer data);
|
|
gboolean gst_pad_pause_task (GstPad *pad);
|
|
gboolean gst_pad_stop_task (GstPad *pad);
|
|
|
|
/* internal links */
|
|
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);
|
|
|
|
/* generic query function */
|
|
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, GstQuery *query);
|
|
void gst_pad_set_query_function (GstPad *pad, GstPadQueryFunction query);
|
|
gboolean gst_pad_query_default (GstPad *pad, GstQuery *query);
|
|
|
|
/* misc helper functions */
|
|
gboolean gst_pad_dispatcher (GstPad *pad, GstPadDispatcherFunction dispatch,
|
|
gpointer data);
|
|
/* probes */
|
|
#define gst_pad_add_probe(pad, probe) \
|
|
(gst_probe_dispatcher_add_probe (&(GST_PAD_CAST (pad)->probedisp), probe))
|
|
#define gst_pad_remove_probe(pad, probe) \
|
|
(gst_probe_dispatcher_remove_probe (&(GST_PAD_CAST (pad)->probedisp), probe))
|
|
|
|
#ifndef GST_DISABLE_LOADSAVE
|
|
void gst_pad_load_and_link (xmlNodePtr self, GstObject *parent);
|
|
#endif
|
|
|
|
|
|
/* 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);
|
|
GstCaps* gst_static_pad_template_get_caps (GstStaticPadTemplate *templ);
|
|
GstCaps* gst_pad_template_get_caps (GstPadTemplate *templ);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_PAD_H__ */
|