| /* 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 |
| |
| extern GType _gst_pad_type; |
| extern GType _gst_real_pad_type; |
| extern GType _gst_ghost_pad_type; |
| |
| #define GST_TYPE_PARANOID |
| |
| /* |
| * Pad base class |
| */ |
| #define GST_TYPE_PAD (_gst_pad_type) |
| |
| #define GST_PAD_CAST(obj) ((GstPad*)(obj)) |
| #define GST_PAD_CLASS_CAST(klass) ((GstPadClass*)(klass)) |
| #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)) |
| |
| #ifdef GST_TYPE_PARANOID |
| # 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)) |
| #else |
| # define GST_PAD GST_PAD_CAST |
| # define GST_PAD_CLASS GST_PAD_CLASS_CAST |
| #endif |
| |
| /* |
| * Real Pads |
| */ |
| #define GST_TYPE_REAL_PAD (_gst_real_pad_type) |
| |
| #define GST_REAL_PAD_CAST(obj) ((GstRealPad*)(obj)) |
| #define GST_REAL_PAD_CLASS_CAST(klass) ((GstRealPadClass*)(klass)) |
| #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)) |
| |
| #ifdef GST_TYPE_PARANOID |
| # 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)) |
| #else |
| # define GST_REAL_PAD GST_REAL_PAD_CAST |
| # define GST_REAL_PAD_CLASS GST_REAL_PAD_CLASS_CAST |
| #endif |
| |
| /* |
| * Ghost Pads |
| */ |
| #define GST_TYPE_GHOST_PAD (_gst_ghost_pad_type) |
| |
| #define GST_GHOST_PAD_CAST(obj) ((GstGhostPad*)(obj)) |
| #define GST_GHOST_PAD_CLASS_CAST(klass) ((GstGhostPadClass*)(klass)) |
| #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)) |
| |
| #ifdef GST_TYPE_PARANOID |
| # 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)) |
| #else |
| # define GST_GHOST_PAD GST_GHOST_PAD_CAST |
| # define GST_GHOST_PAD_CLASS GST_GHOST_PAD_CLASS_CAST |
| #endif |
| |
| |
| /*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 enum { |
| GST_PAD_LINK_REFUSED = -1, |
| GST_PAD_LINK_DELAYED = 0, |
| GST_PAD_LINK_OK = 1, |
| GST_PAD_LINK_DONE = 2 |
| } GstPadLinkReturn; |
| |
| /* convenience functions */ |
| #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 |
| |
| |
| /* 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,GstBuffer *buf); |
| typedef GstBuffer* (*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, GstCaps *caps); |
| typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad, GstCaps *caps); |
| typedef GstBufferPool* (*GstPadBufferPoolFunction) (GstPad *pad); |
| |
| 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 */ |
| }; |
| |
| struct _GstPadClass { |
| GstObjectClass parent_class; |
| }; |
| |
| struct _GstRealPad { |
| GstPad pad; |
| |
| /* the pad capabilities */ |
| GstCaps *caps; |
| GstCaps *filter; |
| GstCaps *appfilter; |
| GstPadGetCapsFunction getcapsfunc; |
| |
| GstPadDirection direction; |
| |
| GstPadLinkFunction linkfunc; |
| 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; |
| |
| GstPadBufferPoolFunction bufferpoolfunc; |
| |
| GstProbeDispatcher probedisp; |
| }; |
| |
| 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); |
| }; |
| |
| struct _GstGhostPad { |
| GstPad pad; |
| |
| GstRealPad *realpad; |
| }; |
| |
| struct _GstGhostPadClass { |
| GstPadClass parent_class; |
| }; |
| |
| |
| /***** 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_FILTER(pad) (((GstRealPad *)(pad))->filter) |
| #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_GETCAPSFUNC(pad) (((GstRealPad *)(pad))->getcapsfunc) |
| #define GST_RPAD_BUFFERPOOLFUNC(pad) (((GstRealPad *)(pad))->bufferpoolfunc) |
| |
| /* 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_RPAD_CAPS(GST_PAD_REALIZE(pad)) |
| #define GST_PAD_PEER(pad) GST_PAD_CAST(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_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; |
| }; |
| |
| struct _GstPadTemplateClass { |
| GstObjectClass parent_class; |
| |
| /* signal callbacks */ |
| void (*pad_created) (GstPadTemplate *templ, GstPad *pad); |
| }; |
| |
| #ifdef G_HAVE_ISO_VARARGS |
| #define GST_PAD_TEMPLATE_NEW(padname, dir, pres, ...) \ |
| gst_pad_template_new ( \ |
| padname, \ |
| dir, \ |
| pres, \ |
| __VA_ARGS__ , \ |
| NULL) |
| |
| #define GST_PAD_TEMPLATE_FACTORY(name, padname, dir, pres, ...) \ |
| static GstPadTemplate* \ |
| name (void) \ |
| { \ |
| static GstPadTemplate *templ = NULL; \ |
| if (!templ) { \ |
| templ = GST_PAD_TEMPLATE_NEW ( \ |
| padname, \ |
| dir, \ |
| pres, \ |
| __VA_ARGS__ ); \ |
| } \ |
| return templ; \ |
| } |
| #elif defined(G_HAVE_GNUC_VARARGS) |
| /* CR1: the space after 'a' is necessary because of preprocessing in gcc */ |
| #define GST_PAD_TEMPLATE_NEW(padname, dir, pres, a...) \ |
| gst_pad_template_new ( \ |
| padname, \ |
| dir, \ |
| pres, \ |
| a , \ |
| NULL) |
| |
| #define GST_PAD_TEMPLATE_FACTORY(name, padname, dir, pres, a...) \ |
| static GstPadTemplate* \ |
| name (void) \ |
| { \ |
| static GstPadTemplate *templ = NULL; \ |
| if (!templ) { \ |
| templ = GST_PAD_TEMPLATE_NEW ( \ |
| padname, \ |
| dir, \ |
| pres, \ |
| a ); \ |
| } \ |
| return templ; \ |
| } |
| #endif |
| |
| #define GST_PAD_TEMPLATE_GET(fact) (fact)() |
| |
| 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); |
| const 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_bufferpool_function (GstPad *pad, GstPadBufferPoolFunction bufpool); |
| GstBufferPool* gst_pad_get_bufferpool (GstPad *pad); |
| |
| /* 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); |
| const GstEventMask* gst_pad_get_event_masks (GstPad *pad); |
| const 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, GstCaps *filtercaps); |
| |
| gboolean gst_pad_link (GstPad *srcpad, GstPad *sinkpad); |
| gboolean gst_pad_link_filtered (GstPad *srcpad, GstPad *sinkpad, GstCaps *filtercaps); |
| void gst_pad_unlink (GstPad *srcpad, GstPad *sinkpad); |
| |
| GstPad* gst_pad_get_peer (GstPad *pad); |
| |
| /* capsnego functions */ |
| GstCaps* gst_pad_get_caps (GstPad *pad); |
| GstCaps* gst_pad_get_pad_template_caps (GstPad *pad); |
| GstPadLinkReturn gst_pad_try_set_caps (GstPad *pad, GstCaps *caps); |
| gboolean gst_pad_check_compatibility (GstPad *srcpad, GstPad *sinkpad); |
| |
| void gst_pad_set_getcaps_function (GstPad *pad, GstPadGetCapsFunction getcaps); |
| GstPadLinkReturn gst_pad_proxy_link (GstPad *pad, GstCaps *caps); |
| gboolean gst_pad_relink_filtered (GstPad *srcpad, GstPad *sinkpad, GstCaps *filtercaps); |
| gboolean gst_pad_perform_negotiate (GstPad *srcpad, GstPad *sinkpad); |
| gboolean gst_pad_try_relink_filtered (GstPad *srcpad, GstPad *sinkpad, GstCaps *filtercaps); |
| GstCaps* gst_pad_get_allowed_caps (GstPad *pad); |
| gboolean gst_pad_recalc_allowed_caps (GstPad *pad); |
| |
| gboolean gst_pad_recover_caps_error (GstPad *pad, GstCaps *allowed); |
| |
| /* data passing functions */ |
| void gst_pad_push (GstPad *pad, GstBuffer *buf); |
| GstBuffer* gst_pad_pull (GstPad *pad); |
| gboolean gst_pad_send_event (GstPad *pad, GstEvent *event); |
| gboolean gst_pad_event_default (GstPad *pad, GstEvent *event); |
| GstPad* gst_pad_select (GList *padlist); |
| GstPad* gst_pad_selectv (GstPad *pad, ...); |
| |
| |
| /* convert/query/format functions */ |
| void gst_pad_set_formats_function (GstPad *pad, |
| GstPadFormatsFunction formats); |
| const GstFormat* gst_pad_get_formats (GstPad *pad); |
| const 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); |
| const GstQueryType* gst_pad_get_query_types (GstPad *pad); |
| const 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, ...); |
| |
| GstCaps* gst_pad_template_get_caps (GstPadTemplate *templ); |
| GstCaps* gst_pad_template_get_caps_by_name (GstPadTemplate *templ, const gchar *name); |
| |
| #ifndef GST_DISABLE_LOADSAVE |
| xmlNodePtr gst_ghost_pad_save_thyself (GstPad *pad, |
| xmlNodePtr parent); |
| #endif |
| |
| G_END_DECLS |
| |
| |
| #endif /* __GST_PAD_H__ */ |
| |
