| /* GStreamer |
| * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
| * 2000,2004 Wim Taymans <wim@fluendo.com> |
| * |
| * gstelement.h: Header for GstElement |
| * |
| * 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., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| |
| #ifndef __GST_ELEMENT_FACTORY_H__ |
| #define __GST_ELEMENT_FACTORY_H__ |
| |
| typedef struct _GstElementFactory GstElementFactory; |
| typedef struct _GstElementFactoryClass GstElementFactoryClass; |
| |
| #include <gst/gstconfig.h> |
| #include <gst/gstelement.h> |
| #include <gst/gstobject.h> |
| #include <gst/gstplugin.h> |
| #include <gst/gstpluginfeature.h> |
| #include <gst/gstiterator.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)) |
| |
| /** |
| * GstElementFactory: |
| * |
| * The opaque #GstElementFactory data structure. |
| */ |
| struct _GstElementFactory { |
| GstPluginFeature parent; |
| |
| GType type; /* unique GType of element or 0 if not loaded */ |
| |
| gpointer metadata; |
| |
| GList * staticpadtemplates; /* GstStaticPadTemplate list */ |
| guint numpadtemplates; |
| |
| /* URI interface stuff */ |
| guint uri_type; |
| gchar ** uri_protocols; |
| |
| GList * interfaces; /* interface type names this element implements */ |
| |
| /*< private >*/ |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| struct _GstElementFactoryClass { |
| GstPluginFeatureClass parent_class; |
| |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| GType gst_element_factory_get_type (void); |
| |
| GstElementFactory * gst_element_factory_find (const gchar *name); |
| |
| GType gst_element_factory_get_element_type (GstElementFactory *factory); |
| |
| G_CONST_RETURN gchar * gst_element_factory_get_metadata (GstElementFactory *factory, const gchar *key); |
| |
| guint gst_element_factory_get_num_pad_templates (GstElementFactory *factory); |
| G_CONST_RETURN GList * gst_element_factory_get_static_pad_templates (GstElementFactory *factory); |
| |
| gint gst_element_factory_get_uri_type (GstElementFactory *factory); |
| gchar ** gst_element_factory_get_uri_protocols (GstElementFactory *factory); |
| |
| gboolean gst_element_factory_has_interface (GstElementFactory *factory, |
| const gchar *interfacename); |
| |
| GstElement* gst_element_factory_create (GstElementFactory *factory, |
| const gchar *name); |
| GstElement* gst_element_factory_make (const gchar *factoryname, const gchar *name); |
| |
| /* FIXME 0.11: move these two into our private headers */ |
| void __gst_element_factory_add_static_pad_template (GstElementFactory *elementfactory, |
| GstStaticPadTemplate *templ); |
| void __gst_element_factory_add_interface (GstElementFactory *elementfactory, |
| const gchar *interfacename); |
| 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_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. |
| * |
| * Since: 0.10.31 |
| */ |
| |
| typedef guint64 GstElementFactoryListType; |
| |
| #define GST_ELEMENT_FACTORY_TYPE_DECODER (G_GUINT64_CONSTANT (1) << 0) |
| #define GST_ELEMENT_FACTORY_TYPE_ENCODER (G_GUINT64_CONSTANT (1) << 1) |
| #define GST_ELEMENT_FACTORY_TYPE_SINK (G_GUINT64_CONSTANT (1) << 2) |
| #define GST_ELEMENT_FACTORY_TYPE_SRC (G_GUINT64_CONSTANT (1) << 3) |
| #define GST_ELEMENT_FACTORY_TYPE_MUXER (G_GUINT64_CONSTANT (1) << 4) |
| #define GST_ELEMENT_FACTORY_TYPE_DEMUXER (G_GUINT64_CONSTANT (1) << 5) |
| #define GST_ELEMENT_FACTORY_TYPE_PARSER (G_GUINT64_CONSTANT (1) << 6) |
| #define GST_ELEMENT_FACTORY_TYPE_PAYLOADER (G_GUINT64_CONSTANT (1) << 7) |
| #define GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER (G_GUINT64_CONSTANT (1) << 8) |
| #define GST_ELEMENT_FACTORY_TYPE_FORMATTER (G_GUINT64_CONSTANT (1) << 9) |
| |
| #define GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS (G_GUINT64_CONSTANT (1) << 48) |
| |
| #define GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO (G_GUINT64_CONSTANT (1) << 49) |
| #define GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO (G_GUINT64_CONSTANT (1) << 50) |
| #define GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE (G_GUINT64_CONSTANT (1) << 51) |
| #define GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE (G_GUINT64_CONSTANT (1) << 52) |
| #define GST_ELEMENT_FACTORY_TYPE_MEDIA_METADATA (G_GUINT64_CONSTANT (1) << 53) |
| |
| /** |
| * GST_ELEMENT_FACTORY_TYPE_ANY: |
| * |
| * Elements of any of the defined GST_ELEMENT_FACTORY_LIST types |
| * |
| * Since: 0.10.31 |
| */ |
| #define GST_ELEMENT_FACTORY_TYPE_ANY ((G_GUINT64_CONSTANT (1) << 49) - 1) |
| |
| /** |
| * GST_ELEMENT_FACTORY_TYPE_MEDIA_ANY: |
| * |
| * 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. |
| * |
| * Since: 0.10.31 |
| */ |
| #define GST_ELEMENT_FACTORY_TYPE_MEDIA_ANY (~G_GUINT64_CONSTANT (0) << 48) |
| |
| /** |
| * GST_ELEMENT_FACTORY_TYPE_VIDEO_ENCODER: |
| * |
| * All encoders handling video or image media types |
| * |
| * Since: 0.10.31 |
| */ |
| #define GST_ELEMENT_FACTORY_TYPE_VIDEO_ENCODER (GST_ELEMENT_FACTORY_TYPE_ENCODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE) |
| |
| /** |
| * GST_ELEMENT_FACTORY_TYPE_AUDIO_ENCODER: |
| * |
| * All encoders handling audio media types |
| * |
| * Since: 0.10.31 |
| */ |
| #define GST_ELEMENT_FACTORY_TYPE_AUDIO_ENCODER (GST_ELEMENT_FACTORY_TYPE_ENCODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO) |
| |
| /** |
| * GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS: |
| * |
| * All sinks handling audio, video or image media types |
| * |
| * Since: 0.10.31 |
| */ |
| #define GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS (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: |
| * |
| * All elements used to 'decode' streams (decoders, demuxers, parsers, depayloaders) |
| * |
| * Since: 0.10.31 |
| */ |
| #define GST_ELEMENT_FACTORY_TYPE_DECODABLE \ |
| (GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_DEMUXER | GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER | GST_ELEMENT_FACTORY_TYPE_PARSER) |
| |
| /* 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_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" |
| |
| gboolean gst_element_factory_list_is_type (GstElementFactory *factory, |
| GstElementFactoryListType type); |
| |
| GList * gst_element_factory_list_get_elements (GstElementFactoryListType type, |
| GstRank minrank); |
| |
| |
| GList * gst_element_factory_list_filter (GList *list, const GstCaps *caps, |
| GstPadDirection direction, |
| gboolean subsetonly); |
| G_END_DECLS |
| |
| #endif /* __GST_ELEMENT_FACTORY_H__ */ |
