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b0fdbcec64
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>
90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/* GStreamer
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*
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* Copyright 2007 Collabora Ltd
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* @author: Olivier Crete <olivier.crete@collabora.co.uk>
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* Copyright 2007-2008 Nokia
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* Copyright 2023 Igalia S.L.
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* @author: Thibault Saunier <tsaunier@igalia.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_BASE_AUTO_CONVERT (gst_base_auto_convert_get_type())
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#define GST_BASE_AUTO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_BASE_AUTO_CONVERT,GstBaseAutoConvert))
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#define GST_BASE_AUTO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_BASE_AUTO_CONVERT,GstBaseAutoConvertClass))
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#define GST_BASE_AUTO_CONVERT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_AUTO_CONCERT, GstBaseAutoConvertClass))
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#define GST_IS_BASE_AUTO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_BASE_AUTO_CONVERT))
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#define GST_IS_BASE_AUTO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_BASE_AUTO_CONVERT))
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typedef struct _GstBaseAutoConvert GstBaseAutoConvert;
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typedef struct _GstBaseAutoConvertClass GstBaseAutoConvertClass;
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struct _GstBaseAutoConvert
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{
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/*< private >*/
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GstBin bin; /* we extend GstBin */
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GList *factories;
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GList *filters_info;
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GstPad *sinkpad;
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GstPad *srcpad;
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/* Have to be set all at once
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* Protected by the object lock and the stream lock
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* Both must be held to modify these
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*/
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GstElement *current_subelement;
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GstPad *current_internal_srcpad;
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GstPad *current_internal_sinkpad;
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GHashTable *elements;
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};
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/* This structure is used to allow handling random bin from their description
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without needing to register a factory. The data it contains is pretty similar
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but is specific for filters (1sinkpad and 1 srcpad).
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*/
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typedef struct
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{
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/* Name of the filter, each instance of should have that name */
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gchar *name;
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gchar *bindesc;
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GstRank rank;
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GstCaps *sink_caps;
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GstCaps *src_caps;
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} GstAutoConvertFilterInfo;
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struct _GstBaseAutoConvertClass
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{
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GstBinClass parent_class;
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gboolean registers_filters;
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};
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstBaseAutoConvert, gst_object_unref)
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GType gst_base_auto_convert_get_type (void);
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gboolean
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gst_base_auto_convert_register_filter(GstBaseAutoConvert *self, gchar *name,
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gchar * bindesc, GstRank rank);
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void gst_base_auto_convert_reset_filters (GstBaseAutoConvert * self);
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G_END_DECLS
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