mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-01 22:21:13 +00:00
6fa6cd8ce4
Original commit message from CVS: First attempt at rebuilding the type/plugin system - make sure caps/props are saved in the registry autoplugging is completely broken. removed the typefactories and typeids from all the pads in the plugins XML load/save is ok (be sure to rerun gstreamer-register)
145 lines
4.5 KiB
C
145 lines
4.5 KiB
C
/* Gnome-Streamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
*
|
|
* 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 <gnome-xml/parser.h>
|
|
#include <gst/gstobject.h>
|
|
#include <gst/gstbuffer.h>
|
|
#include <gst/cothreads.h>
|
|
#include <gst/gstcaps.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
#define GST_TYPE_PAD (gst_pad_get_type ())
|
|
#define GST_PAD(obj) (GTK_CHECK_CAST ((obj), GST_TYPE_PAD,GstPad))
|
|
#define GST_PAD_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GST_TYPE_PAD,GstPadClass))
|
|
#define GST_IS_PAD(obj) (GTK_CHECK_TYPE ((obj), GST_TYPE_PAD))
|
|
#define GST_IS_PAD_CLASS(obj) (GTK_CHECK_CLASS_TYPE ((klass), GST_TYPE_PAD))
|
|
|
|
// quick test to see if the pad is connected
|
|
#define GST_PAD_CONNECTED(pad) ((pad) && (pad)->peer != NULL)
|
|
#define GST_PAD_CAN_PULL(pad) ((pad) && (pad)->pullfunc != NULL)
|
|
|
|
typedef struct _GstPad GstPad;
|
|
typedef struct _GstPadClass GstPadClass;
|
|
|
|
/* 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 void (*GstPadPullFunction) (GstPad *pad);
|
|
typedef void (*GstPadPullRegionFunction) (GstPad *pad, gulong offset, gulong size);
|
|
typedef void (*GstPadPushFunction) (GstPad *pad);
|
|
typedef void (*GstPadQoSFunction) (GstPad *pad, glong qos_message);
|
|
|
|
typedef enum {
|
|
GST_PAD_UNKNOWN,
|
|
GST_PAD_SRC,
|
|
GST_PAD_SINK,
|
|
} GstPadDirection;
|
|
|
|
typedef enum {
|
|
GST_PAD_DISABLED = (1 << 4),
|
|
} GstPadFlags;
|
|
|
|
struct _GstPad {
|
|
GstObject object;
|
|
|
|
gchar *name;
|
|
GstCaps *caps;
|
|
|
|
cothread_state *threadstate;
|
|
|
|
GstPadDirection direction;
|
|
|
|
GstPad *peer;
|
|
|
|
GstBuffer *bufpen;
|
|
|
|
GstPadChainFunction chainfunc;
|
|
GstPadPushFunction pushfunc;
|
|
GstPadPullFunction pullfunc;
|
|
GstPadPullRegionFunction pullregionfunc;
|
|
GstPadQoSFunction qosfunc;
|
|
|
|
GstObject *parent;
|
|
GList *ghostparents;
|
|
};
|
|
|
|
struct _GstPadClass {
|
|
GstObjectClass parent_class;
|
|
|
|
/* signal callbacks */
|
|
void (*set_active) (GstPad *pad, gboolean active);
|
|
void (*caps_changed) (GstPad *pad, GstCaps *newcaps);
|
|
};
|
|
|
|
|
|
GtkType gst_pad_get_type (void);
|
|
GstPad* gst_pad_new (gchar *name, GstPadDirection direction);
|
|
#define gst_pad_destroy(pad) gst_object_destroy (GST_OBJECT (pad))
|
|
|
|
GstPadDirection gst_pad_get_direction (GstPad *pad);
|
|
|
|
void gst_pad_set_chain_function (GstPad *pad, GstPadChainFunction chain);
|
|
void gst_pad_set_pull_function (GstPad *pad, GstPadPullFunction pull);
|
|
void gst_pad_set_pullregion_function (GstPad *pad, GstPadPullRegionFunction pullregion);
|
|
void gst_pad_set_qos_function (GstPad *pad, GstPadQoSFunction qos);
|
|
|
|
void gst_pad_set_caps (GstPad *pad, GstCaps *caps);
|
|
GstCaps* gst_pad_get_caps (GstPad *pad);
|
|
|
|
void gst_pad_set_name (GstPad *pad, const gchar *name);
|
|
const gchar* gst_pad_get_name (GstPad *pad);
|
|
|
|
void gst_pad_set_parent (GstPad *pad, GstObject *parent);
|
|
GstObject* gst_pad_get_parent (GstPad *pad);
|
|
void gst_pad_add_ghost_parent (GstPad *pad, GstObject *parent);
|
|
void gst_pad_remove_ghost_parent (GstPad *pad, GstObject *parent);
|
|
GList* gst_pad_get_ghost_parents (GstPad *pad);
|
|
|
|
GstPad* gst_pad_get_peer (GstPad *pad);
|
|
|
|
void gst_pad_connect (GstPad *srcpad, GstPad *sinkpad);
|
|
void gst_pad_disconnect (GstPad *srcpad, GstPad *sinkpad);
|
|
|
|
void gst_pad_push (GstPad *pad, GstBuffer *buffer);
|
|
GstBuffer* gst_pad_pull (GstPad *pad);
|
|
GstBuffer* gst_pad_pull_region (GstPad *pad, gulong offset, gulong size);
|
|
void gst_pad_handle_qos (GstPad *pad, glong qos_message);
|
|
|
|
xmlNodePtr gst_pad_save_thyself (GstPad *pad, xmlNodePtr parent);
|
|
void gst_pad_load_and_connect (xmlNodePtr parent, GstObject *element, GHashTable *elements);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
#endif /* __GST_PAD_H__ */
|
|
|