mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b6d31c1c72
Original commit message from CVS: Megapatch, changes which states are available, how they're used, and how they're set. Also modifies the scheduling system, breaking pulled buffers. Check mail archives for more details.
130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_PAD_H__
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#define __GST_PAD_H__
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#include <gnome-xml/parser.h>
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#include <gst/gstobject.h>
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#include <gst/gstbuffer.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_PAD (gst_pad_get_type())
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#define GST_PAD(obj) (GTK_CHECK_CAST((obj),GST_TYPE_PAD,GstPad))
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#define GST_PAD_CLASS(klass) (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_PAD,GstPadClass))
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#define GST_IS_PAD(obj) (GTK_CHECK_TYPE((obj),GST_TYPE_PAD))
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#define GST_IS_PAD_CLASS(obj) (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_PAD))
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// quick test to see if the pad is connected
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#define GST_PAD_CONNECTED(pad) ((pad)->peer != NULL)
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#define GST_PAD_CAN_PULL(pad) ((pad)->pullfunc != NULL)
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typedef struct _GstPad GstPad;
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typedef struct _GstPadClass GstPadClass;
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/* this defines the functions used to chain buffers
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* pad is the sink pad (so the same chain function can be used for N pads)
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* buf is the buffer being passed */
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typedef void (*GstPadChainFunction) (GstPad *pad,GstBuffer *buf);
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typedef void (*GstPadPullFunction) (GstPad *pad);
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typedef void (*GstPadPushFunction) (GstPad *pad);
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typedef void (*GstPadQoSFunction) (GstPad *pad, glong qos_message);
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typedef enum {
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GST_PAD_UNKNOWN,
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GST_PAD_SRC,
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GST_PAD_SINK,
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} GstPadDirection;
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//typedef enum {
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//} GstPadFlags;
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struct _GstPad {
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GstObject object;
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gchar *name;
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guint16 type;
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GstPadDirection direction;
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GstPad *peer;
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GstBuffer *bufpen;
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GstPadChainFunction chainfunc;
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GstPadPullFunction pullfunc;
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GstPadPushFunction pushfunc;
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GstPadQoSFunction qosfunc;
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GstObject *parent;
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GList *ghostparents;
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};
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struct _GstPadClass {
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GstObjectClass parent_class;
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};
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GtkType gst_pad_get_type(void);
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GstPad *gst_pad_new(gchar *name,GstPadDirection direction);
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void gst_pad_destroy(GstPad *pad);
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GstPadDirection gst_pad_get_direction(GstPad *pad);
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void gst_pad_set_chain_function(GstPad *pad,GstPadChainFunction chain);
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void gst_pad_set_pull_function(GstPad *pad, GstPadPullFunction pull);
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void gst_pad_set_qos_function(GstPad *pad, GstPadQoSFunction qos);
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guint16 gst_pad_get_type_id(GstPad *pad);
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void gst_pad_set_type_id(GstPad *pad,guint16 id);
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void gst_pad_set_name(GstPad *pad,gchar *name);
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gchar *gst_pad_get_name(GstPad *pad);
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#define gst_pad_destroy(pad) gst_object_destroy(GST_OBJECT(pad))
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void gst_pad_set_parent(GstPad *pad,GstObject *parent);
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void gst_pad_add_ghost_parent(GstPad *pad,GstObject *parent);
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void gst_pad_remove_ghost_parent(GstPad *pad,GstObject *parent);
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GstObject *gst_pad_get_parent(GstPad *pad);
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GList *gst_pad_get_ghost_parents(GstPad *pad);
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GstPad *gst_pad_get_peer(GstPad *pad);
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void gst_pad_connect(GstPad *srcpad,GstPad *sinkpad);
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void gst_pad_disconnect(GstPad *srcpad,GstPad *sinkpad);
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void gst_pad_push(GstPad *pad,GstBuffer *buffer);
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GstBuffer *gst_pad_pull(GstPad *pad);
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void gst_pad_handle_qos(GstPad *pad, glong qos_message);
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xmlNodePtr gst_pad_save_thyself(GstPad *pad,xmlNodePtr parent);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_PAD_H__ */
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