gstreamer/subprojects/gst-plugins-bad/gst/autoconvert/gstbaseautoconvert.h
Thibault Saunier b0fdbcec64 autovideoconvert: Handle passing bin description instead of factories
This way we can build our own well know bins for conversion keeping the
code simple.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/899>
2024-01-31 11:00:24 +00:00

90 lines
3.1 KiB
C

/* GStreamer
*
* Copyright 2007 Collabora Ltd
* @author: Olivier Crete <olivier.crete@collabora.co.uk>
* Copyright 2007-2008 Nokia
* Copyright 2023 Igalia S.L.
* @author: Thibault Saunier <tsaunier@igalia.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_AUTO_CONVERT (gst_base_auto_convert_get_type())
#define GST_BASE_AUTO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_BASE_AUTO_CONVERT,GstBaseAutoConvert))
#define GST_BASE_AUTO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_BASE_AUTO_CONVERT,GstBaseAutoConvertClass))
#define GST_BASE_AUTO_CONVERT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_AUTO_CONCERT, GstBaseAutoConvertClass))
#define GST_IS_BASE_AUTO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_BASE_AUTO_CONVERT))
#define GST_IS_BASE_AUTO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_BASE_AUTO_CONVERT))
typedef struct _GstBaseAutoConvert GstBaseAutoConvert;
typedef struct _GstBaseAutoConvertClass GstBaseAutoConvertClass;
struct _GstBaseAutoConvert
{
/*< private >*/
GstBin bin; /* we extend GstBin */
GList *factories;
GList *filters_info;
GstPad *sinkpad;
GstPad *srcpad;
/* Have to be set all at once
* Protected by the object lock and the stream lock
* Both must be held to modify these
*/
GstElement *current_subelement;
GstPad *current_internal_srcpad;
GstPad *current_internal_sinkpad;
GHashTable *elements;
};
/* This structure is used to allow handling random bin from their description
without needing to register a factory. The data it contains is pretty similar
but is specific for filters (1sinkpad and 1 srcpad).
*/
typedef struct
{
/* Name of the filter, each instance of should have that name */
gchar *name;
gchar *bindesc;
GstRank rank;
GstCaps *sink_caps;
GstCaps *src_caps;
} GstAutoConvertFilterInfo;
struct _GstBaseAutoConvertClass
{
GstBinClass parent_class;
gboolean registers_filters;
};
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstBaseAutoConvert, gst_object_unref)
GType gst_base_auto_convert_get_type (void);
gboolean
gst_base_auto_convert_register_filter(GstBaseAutoConvert *self, gchar *name,
gchar * bindesc, GstRank rank);
void gst_base_auto_convert_reset_filters (GstBaseAutoConvert * self);
G_END_DECLS