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GST-Tensordecoder-ov_ep/subprojects/gstreamer/gst/gstelementfactory.h
Thibault Saunier 095a5ba425 factory: Add "Timestamper" as new factory type 
This will be used by elements that correct timestamps (like the
h264timestamper for example)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3779>
2023-01-24 16:31:40 +00:00

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000,2004 Wim Taymans <wim@fluendo.com>
*
* gstelementfactory.h: Header for GstElementFactory
*
* 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.
*/
#ifndef __GST_ELEMENT_FACTORY_H__
#define __GST_ELEMENT_FACTORY_H__
/**
* GstElementFactory:
*
* The opaque #GstElementFactory data structure.
*/
typedef struct _GstElementFactory GstElementFactory;
typedef struct _GstElementFactoryClass GstElementFactoryClass;
#include <gst/gstconfig.h>
#include <gst/gstelement.h>
#include <gst/gstpad.h>
#include <gst/gstplugin.h>
#include <gst/gstpluginfeature.h>
#include <gst/gsturi.h>
G_BEGIN_DECLS
#define GST_TYPE_ELEMENT_FACTORY (gst_element_factory_get_type())
#define GST_ELEMENT_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ELEMENT_FACTORY,\
GstElementFactory))
#define GST_ELEMENT_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ELEMENT_FACTORY,\
GstElementFactoryClass))
#define GST_IS_ELEMENT_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ELEMENT_FACTORY))
#define GST_IS_ELEMENT_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ELEMENT_FACTORY))
#define GST_ELEMENT_FACTORY_CAST(obj) ((GstElementFactory *)(obj))
GST_API
GType gst_element_factory_get_type (void);
GST_API
GstElementFactory * gst_element_factory_find (const gchar *name);
GST_API
GType gst_element_factory_get_element_type (GstElementFactory *factory);
GST_API
const gchar * gst_element_factory_get_metadata (GstElementFactory *factory, const gchar *key);
GST_API
gchar ** gst_element_factory_get_metadata_keys (GstElementFactory *factory);
GST_API
guint gst_element_factory_get_num_pad_templates (GstElementFactory *factory);
GST_API
const GList * gst_element_factory_get_static_pad_templates (GstElementFactory *factory);
GST_API
GstURIType gst_element_factory_get_uri_type (GstElementFactory *factory);
GST_API
const gchar * const * gst_element_factory_get_uri_protocols (GstElementFactory *factory);
GST_API
gboolean gst_element_factory_has_interface (GstElementFactory *factory,
const gchar *interfacename);
GST_API
GstElement* gst_element_factory_create (GstElementFactory *factory,
const gchar *name) G_GNUC_MALLOC;
GST_API
GstElement* gst_element_factory_create_full (GstElementFactory * factory,
const gchar * first, ...) G_GNUC_MALLOC;
GST_API
GstElement * gst_element_factory_create_valist (GstElementFactory * factory,
const gchar * first, va_list properties) G_GNUC_MALLOC;
GST_API
GstElement * gst_element_factory_create_with_properties (GstElementFactory * factory,
guint n, const gchar *names[], const GValue values[]) G_GNUC_MALLOC;
GST_API
GstElement* gst_element_factory_make (const gchar *factoryname, const gchar *name) G_GNUC_MALLOC;
GST_API
GstElement* gst_element_factory_make_full (const gchar *factoryname,
const gchar *first, ...) G_GNUC_MALLOC;
GST_API
GstElement* gst_element_factory_make_valist (const gchar *factoryname,
const gchar *first, va_list properties) G_GNUC_MALLOC;
GST_API
GstElement* gst_element_factory_make_with_properties (const gchar *factoryname,
guint n, const gchar *names[], const GValue values[]) G_GNUC_MALLOC;
GST_API
gboolean gst_element_register (GstPlugin *plugin, const gchar *name,
guint rank, GType type);
GST_API
void gst_element_type_set_skip_documentation (GType type);
GST_API
gboolean gst_element_factory_get_skip_documentation (GstElementFactory * factory);
/* Factory list functions */
/**
* GstFactoryListType:
* @GST_ELEMENT_FACTORY_TYPE_DECODER: Decoder elements
* @GST_ELEMENT_FACTORY_TYPE_ENCODER: Encoder elements
* @GST_ELEMENT_FACTORY_TYPE_SINK: Sink elements
* @GST_ELEMENT_FACTORY_TYPE_SRC: Source elements
* @GST_ELEMENT_FACTORY_TYPE_MUXER: Muxer elements
* @GST_ELEMENT_FACTORY_TYPE_DEMUXER: Demuxer elements
* @GST_ELEMENT_FACTORY_TYPE_PARSER: Parser elements
* @GST_ELEMENT_FACTORY_TYPE_PAYLOADER: Payloader elements
* @GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER: Depayloader elements
* @GST_ELEMENT_FACTORY_TYPE_DECRYPTOR: Elements handling decryption (Since: 1.6)
* @GST_ELEMENT_FACTORY_TYPE_ENCRYPTOR: Elements handling encryption (Since: 1.6)
* @GST_ELEMENT_FACTORY_TYPE_HARDWARE: Hardware based elements (Since: 1.18)
* @GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS: Private, do not use
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO: Elements handling video media types
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO: Elements handling audio media types
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE: Elements handling image media types
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE: Elements handling subtitle media types
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_METADATA: Elements handling metadata media types
*
* The type of #GstElementFactory to filter.
*
* All @GstFactoryListType up to @GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS are exclusive.
*
* If one or more of the MEDIA types are specified, then only elements
* matching the specified media types will be selected.
*/
/**
* GstElementFactoryListType:
*
* A type defining the type of an element factory.
*/
typedef guint64 GstElementFactoryListType;
#define GST_ELEMENT_FACTORY_TYPE_DECODER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 0))
#define GST_ELEMENT_FACTORY_TYPE_ENCODER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 1))
#define GST_ELEMENT_FACTORY_TYPE_SINK ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 2))
#define GST_ELEMENT_FACTORY_TYPE_SRC ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 3))
#define GST_ELEMENT_FACTORY_TYPE_MUXER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 4))
#define GST_ELEMENT_FACTORY_TYPE_DEMUXER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 5))
#define GST_ELEMENT_FACTORY_TYPE_PARSER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 6))
#define GST_ELEMENT_FACTORY_TYPE_PAYLOADER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 7))
#define GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 8))
#define GST_ELEMENT_FACTORY_TYPE_FORMATTER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 9))
#define GST_ELEMENT_FACTORY_TYPE_DECRYPTOR ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 10))
#define GST_ELEMENT_FACTORY_TYPE_ENCRYPTOR ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 11))
#define GST_ELEMENT_FACTORY_TYPE_HARDWARE ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 12))
/**
* GST_ELEMENT_FACTORY_TYPE_TIMESTAMPER:
*
* Timestamp correcting elements
*
* Since: 1.24
*/
#define GST_ELEMENT_FACTORY_TYPE_TIMESTAMPER ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 13))
#define GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 48))
#define GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 49))
#define GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 50))
#define GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 51))
#define GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 52))
#define GST_ELEMENT_FACTORY_TYPE_MEDIA_METADATA ((GstElementFactoryListType)(G_GUINT64_CONSTANT (1) << 53))
/**
* GST_ELEMENT_FACTORY_TYPE_ANY: (value 562949953421311) (type GstElementFactoryListType)
*
* Elements of any of the defined GST_ELEMENT_FACTORY_LIST types
*/
#define GST_ELEMENT_FACTORY_TYPE_ANY ((GstElementFactoryListType)((G_GUINT64_CONSTANT (1) << 49) - 1))
/**
* GST_ELEMENT_FACTORY_TYPE_MEDIA_ANY: (value 18446462598732840960) (type GstElementFactoryListType)
*
* Elements matching any of the defined GST_ELEMENT_FACTORY_TYPE_MEDIA types
*
* Note: Do not use this if you wish to not filter against any of the defined
* media types. If you wish to do this, simply don't specify any
* GST_ELEMENT_FACTORY_TYPE_MEDIA flag.
*/
#define GST_ELEMENT_FACTORY_TYPE_MEDIA_ANY ((GstElementFactoryListType)(~G_GUINT64_CONSTANT (0) << 48))
/**
* GST_ELEMENT_FACTORY_TYPE_VIDEO_ENCODER: (value 2814749767106562) (type GstElementFactoryListType)
*
* All encoders handling video or image media types
*/
#define GST_ELEMENT_FACTORY_TYPE_VIDEO_ENCODER ((GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_ENCODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE))
/**
* GST_ELEMENT_FACTORY_TYPE_AUDIO_ENCODER: (value 1125899906842626) (type GstElementFactoryListType)
*
* All encoders handling audio media types
*/
#define GST_ELEMENT_FACTORY_TYPE_AUDIO_ENCODER ((GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_ENCODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO))
/**
* GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS: (value 3940649673949188) (type GstElementFactoryListType)
*
* All sinks handling audio, video or image media types
*/
#define GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS ((GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_SINK | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE))
/**
* GST_ELEMENT_FACTORY_TYPE_DECODABLE: (value 1377) (type GstElementFactoryListType)
*
* All elements used to 'decode' streams (decoders, demuxers, parsers, depayloaders)
*/
#define GST_ELEMENT_FACTORY_TYPE_DECODABLE \
((GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_DEMUXER | GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER | GST_ELEMENT_FACTORY_TYPE_PARSER | GST_ELEMENT_FACTORY_TYPE_DECRYPTOR))
/* Element klass defines */
#define GST_ELEMENT_FACTORY_KLASS_DECODER "Decoder"
#define GST_ELEMENT_FACTORY_KLASS_ENCODER "Encoder"
#define GST_ELEMENT_FACTORY_KLASS_SINK "Sink"
#define GST_ELEMENT_FACTORY_KLASS_SRC "Source"
#define GST_ELEMENT_FACTORY_KLASS_MUXER "Muxer"
#define GST_ELEMENT_FACTORY_KLASS_DEMUXER "Demuxer"
#define GST_ELEMENT_FACTORY_KLASS_PARSER "Parser"
#define GST_ELEMENT_FACTORY_KLASS_PAYLOADER "Payloader"
#define GST_ELEMENT_FACTORY_KLASS_DEPAYLOADER "Depayloader"
#define GST_ELEMENT_FACTORY_KLASS_FORMATTER "Formatter"
#define GST_ELEMENT_FACTORY_KLASS_DECRYPTOR "Decryptor"
#define GST_ELEMENT_FACTORY_KLASS_ENCRYPTOR "Encryptor"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_VIDEO "Video"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_AUDIO "Audio"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_IMAGE "Image"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_SUBTITLE "Subtitle"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_METADATA "Metadata"
/**
* GST_ELEMENT_FACTORY_KLASS_HARDWARE:
*
* Elements interacting with hardware devices should specify this classifier in
* their metadata. You may need to put the element in "READY" state to test if
* the hardware is present in the system.
*
* Since: 1.16
*/
#define GST_ELEMENT_FACTORY_KLASS_HARDWARE "Hardware"
GST_API
gboolean gst_element_factory_list_is_type (GstElementFactory *factory,
GstElementFactoryListType type);
GST_API
GList * gst_element_factory_list_get_elements (GstElementFactoryListType type,
GstRank minrank) G_GNUC_MALLOC;
GST_API
GList * gst_element_factory_list_filter (GList *list, const GstCaps *caps,
GstPadDirection direction,
gboolean subsetonly) G_GNUC_MALLOC;
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstElementFactory, gst_object_unref)
G_END_DECLS
#endif /* __GST_ELEMENT_FACTORY_H__ */
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