/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000,2004 Wim Taymans * * 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 #include #include #include #include #include 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_make (const gchar *factoryname, const gchar *name) G_GNUC_MALLOC; GST_API gboolean gst_element_register (GstPlugin *plugin, const gchar *name, guint rank, GType type); /* 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_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_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__ */