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Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstbasesink.h:
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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_BASESINK_H__
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#define __GST_BASESINK_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_BASESINK (gst_basesink_get_type())
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#define GST_BASESINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASESINK,GstBaseSink))
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#define GST_BASESINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASESINK,GstBaseSinkClass))
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#define GST_BASESINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASESINK, GstBaseSinkClass))
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#define GST_IS_BASESINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASESINK))
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#define GST_IS_BASESINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASESINK))
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#define GST_BASESINK_CLOCK(obj) (GST_BASESINK (obj)->clock)
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#define GST_BASESINK_PAD(obj) (GST_BASESINK (obj)->sinkpad)
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typedef struct _GstBaseSink GstBaseSink;
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typedef struct _GstBaseSinkClass GstBaseSinkClass;
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struct _GstBaseSink {
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GstElement element;
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GstPad *sinkpad;
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GstActivateMode pad_mode;
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GQueue *preroll_queue; /* with PREROLL_LOCK */
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gint preroll_queue_max_len; /* with PREROLL_LOCK */
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guint64 offset;
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gboolean has_loop;
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gboolean has_chain;
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GstClock *clock;
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GstClockID clock_id;
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GstClockTime end_time;
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gboolean eos;
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gboolean need_preroll;
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gboolean have_preroll;
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};
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struct _GstBaseSinkClass {
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GstElementClass parent_class;
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GstCaps* (*get_caps) (GstBaseSink *sink);
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gboolean (*set_caps) (GstBaseSink *sink, GstCaps *caps);
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GstBuffer* (*buffer_alloc) (GstBaseSink *sink, guint64 offset, guint size,
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GstCaps *caps);
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void (*get_times) (GstBaseSink *sink, GstBuffer *buffer,
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GstClockTime *start, GstClockTime *end);
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void (*event) (GstBaseSink *sink, GstEvent *event);
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GstFlowReturn (*preroll) (GstBaseSink *sink, GstBuffer *buffer);
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GstFlowReturn (*render) (GstBaseSink *sink, GstBuffer *buffer);
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};
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GType gst_basesink_get_type(void);
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G_END_DECLS
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#endif /* __GST_BASESINK_H__ */
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