mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-29 19:50:40 +00:00
f0e5bb0a33
Original commit message from CVS: did s/bases(rc/ink)_/base_s(rc/ink)_/; wim wants to remove base completely, but that's for later
101 lines
3.3 KiB
C
101 lines
3.3 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
*
|
|
* gstbasesink.h:
|
|
*
|
|
* 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_BASESINK_H__
|
|
#define __GST_BASESINK_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
|
|
#define GST_TYPE_BASESINK (gst_base_sink_get_type())
|
|
#define GST_BASESINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASESINK,GstBaseSink))
|
|
#define GST_BASESINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASESINK,GstBaseSinkClass))
|
|
#define GST_BASESINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASESINK, GstBaseSinkClass))
|
|
#define GST_IS_BASESINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASESINK))
|
|
#define GST_IS_BASESINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASESINK))
|
|
|
|
#define GST_BASESINK_CLOCK(obj) (GST_BASESINK (obj)->clock)
|
|
#define GST_BASESINK_PAD(obj) (GST_BASESINK (obj)->sinkpad)
|
|
|
|
typedef struct _GstBaseSink GstBaseSink;
|
|
typedef struct _GstBaseSinkClass GstBaseSinkClass;
|
|
|
|
/* a base class for implementing chain based sinks
|
|
*
|
|
* Preroll, EOS, state changes are all handled.
|
|
*/
|
|
struct _GstBaseSink {
|
|
GstElement element;
|
|
|
|
GstPad *sinkpad;
|
|
GstActivateMode pad_mode;
|
|
|
|
/*< protected >*/ /* with PREROLL_LOCK */
|
|
GQueue *preroll_queue;
|
|
gint preroll_queue_max_len;
|
|
|
|
guint64 offset;
|
|
gboolean has_loop;
|
|
gboolean has_chain;
|
|
|
|
GstClock *clock;
|
|
GstClockID clock_id;
|
|
GstClockTime end_time;
|
|
|
|
gboolean eos;
|
|
gboolean need_preroll;
|
|
gboolean have_preroll;
|
|
};
|
|
|
|
struct _GstBaseSinkClass {
|
|
GstElementClass parent_class;
|
|
|
|
/* get caps from subclass */
|
|
GstCaps* (*get_caps) (GstBaseSink *sink);
|
|
/* notify subclass of new caps */
|
|
gboolean (*set_caps) (GstBaseSink *sink, GstCaps *caps);
|
|
|
|
/* allocate a new buffer with given caps */
|
|
GstFlowReturn (*buffer_alloc) (GstBaseSink *sink, guint64 offset, guint size,
|
|
GstCaps *caps, GstBuffer **buf);
|
|
|
|
/* get the start and end times for syncing on this buffer */
|
|
void (*get_times) (GstBaseSink *sink, GstBuffer *buffer,
|
|
GstClockTime *start, GstClockTime *end);
|
|
|
|
/* unlock any pending access to the resource. subclasses should unlock
|
|
* any function ASAP. */
|
|
gboolean (*unlock) (GstBaseSink *sink);
|
|
|
|
/* notify subclass of event, preroll buffer or real buffer */
|
|
gboolean (*event) (GstBaseSink *sink, GstEvent *event);
|
|
GstFlowReturn (*preroll) (GstBaseSink *sink, GstBuffer *buffer);
|
|
GstFlowReturn (*render) (GstBaseSink *sink, GstBuffer *buffer);
|
|
};
|
|
|
|
GType gst_base_sink_get_type(void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_BASESINK_H__ */
|