gstreamer/gst/base/gstbasesink.h
Andy Wingo 9d1b5e07b3 check/pipelines/simple_launch_lines.c (run_pipeline): Check element_set_state's return val.
Original commit message from CVS:
2005-08-26  Andy Wingo  <wingo@pobox.com>

* check/pipelines/simple_launch_lines.c (run_pipeline): Check
element_set_state's return val.
(test_2_elements): Add test that's been disabled for months.

* gst/elements/gstfakesink.c: Cleanups. Add can-activate-push and
can-activate-pull properties.

* gst/elements/gstfakesrc.c: Cleanups. Add can-activate-push and
can-activate-pull properties. Implement is_seekable so fakesrc can
operate in pull mode.

* gst/base/gstbasesink.c (GstBaseSink): Remove has-loop, has-chain
properties.
(gst_base_sink_activate, gst_base_sink_activate_pull)
(gst_base_sink_activate_push): Make activation mode choosing work.
Cleanups.
(gst_base_sink_chain, gst_base_sink_loop): Assert activation mode
is right. Make pull mode work. Post an eos before pausing in pull
mode.
(gst_base_sink_change_state): Pay attention to the core's
change_state() return val.

* gst/base/gstbasesrc.c (GstBaseSrc): Remove has-loop,
has-getrange properties. Cleanups.

* gst/base/gstbasesrc.h (GstBaseSrc): Remove has_loop,
has_getrange and replace with can_activate_pull and
can_activate_push.

* gst/base/gstbasesink.h (GstBaseSink): Rearrange fields, add
locking comments. Remove has_loop, has_chain and replace with
can_activate_pull and can_activate_push.
2005-08-26 14:21:43 +00:00

132 lines
4.2 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_BASE_SINK_H__
#define __GST_BASE_SINK_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_SINK (gst_base_sink_get_type())
#define GST_BASE_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_SINK,GstBaseSink))
#define GST_BASE_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_SINK,GstBaseSinkClass))
#define GST_BASE_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_SINK, GstBaseSinkClass))
#define GST_IS_BASE_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_SINK))
#define GST_IS_BASE_SINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_SINK))
/**
* GST_BASE_SINK_CLOCK:
* @obj: base sink instance
*
* Returns the pointer to the #GstClock object of the element.
*/
#define GST_BASE_SINK_CLOCK(obj) (GST_BASE_SINK (obj)->clock)
/**
* GST_BASE_SINK_PAD:
* @obj: base sink instance
*
* Returns the pointer to the #GstPad object of the element.
*/
#define GST_BASE_SINK_PAD(obj) (GST_BASE_SINK (obj)->sinkpad)
typedef struct _GstBaseSink GstBaseSink;
typedef struct _GstBaseSinkClass GstBaseSinkClass;
struct _GstBaseSink {
GstElement element;
/*< protected >*/
GstPad *sinkpad;
GstActivateMode pad_mode;
/*< protected >*/ /* with LOCK */
guint64 offset;
gboolean can_activate_pull;
gboolean can_activate_push;
/*< protected >*/ /* with PREROLL_LOCK */
GQueue *preroll_queue;
gint preroll_queue_max_len;
gint preroll_queued;
gint buffers_queued;
gint events_queued;
gboolean eos;
gboolean need_preroll;
gboolean have_preroll;
gboolean playing_async;
/*< protected >*/ /* with STREAM_LOCK */
gboolean have_newsegment;
gdouble segment_rate;
gint64 segment_start;
gint64 segment_stop;
gint64 segment_base;
/*< private >*/ /* with LOCK */
GstClock *clock;
GstClockID clock_id;
GstClockTime end_time;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
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);
/* start and stop processing, ideal for opening/closing the resource */
gboolean (*start) (GstBaseSink *sink);
gboolean (*stop) (GstBaseSink *sink);
/* 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);
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GType gst_base_sink_get_type(void);
G_END_DECLS
#endif /* __GST_BASE_SINK_H__ */