mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-02 12:45:51 +00:00
09141c6e1f
Since we started depending on GLib 2.44, we can be sure this macro is defined (it will be a no-op on compilers that don't support it). For plugins we should just start using `G_DECLARE_FINAL_TYPE` which means we no longer need the macro there, but for most types in core we don't want to break ABI, which means it's better to just keep it like it is (and use the `#ifdef` instead).
422 lines
13 KiB
C
422 lines
13 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2014 David Waring, British Broadcasting Corporation
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* <david.waring@rd.bbc.co.uk>
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*
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* gsturi.h: Header for uri to element mappings and URI manipulation.
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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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#ifndef __GST_URI_H__
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#define __GST_URI_H__
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#include <glib.h>
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#include <glib-object.h>
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G_BEGIN_DECLS
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#include <gst/gstconfig.h>
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/**
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* gst_uri_error_quark: (attributes doc.skip=true)
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*/
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GST_API
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GQuark gst_uri_error_quark (void);
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/**
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* GST_URI_ERROR:
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*
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* Get access to the error quark of the uri subsystem.
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*/
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#define GST_URI_ERROR gst_uri_error_quark ()
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/**
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* GstURIError:
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* @GST_URI_ERROR_UNSUPPORTED_PROTOCOL: The protocol is not supported
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* @GST_URI_ERROR_BAD_URI: There was a problem with the URI
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* @GST_URI_ERROR_BAD_STATE: Could not set or change the URI because the
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* URI handler was in a state where that is not possible or not permitted
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* @GST_URI_ERROR_BAD_REFERENCE: There was a problem with the entity that
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* the URI references
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*
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* Different URI-related errors that can occur.
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*/
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typedef enum
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{
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GST_URI_ERROR_UNSUPPORTED_PROTOCOL,
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GST_URI_ERROR_BAD_URI,
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GST_URI_ERROR_BAD_STATE,
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GST_URI_ERROR_BAD_REFERENCE
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} GstURIError;
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/**
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* GstURIType:
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* @GST_URI_UNKNOWN: The URI direction is unknown
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* @GST_URI_SINK: The URI is a consumer.
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* @GST_URI_SRC: The URI is a producer.
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*
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* The different types of URI direction.
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*/
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typedef enum {
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GST_URI_UNKNOWN,
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GST_URI_SINK,
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GST_URI_SRC
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} GstURIType;
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/**
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* GST_URI_TYPE_IS_VALID:
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* @type: A #GstURIType
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*
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* Tests if the type direction is valid.
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*/
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#define GST_URI_TYPE_IS_VALID(type) ((type) == GST_URI_SRC || (type) == GST_URI_SINK)
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/* uri handler functions */
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#define GST_TYPE_URI_HANDLER (gst_uri_handler_get_type ())
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#define GST_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_URI_HANDLER, GstURIHandler))
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#define GST_IS_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_URI_HANDLER))
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#define GST_URI_HANDLER_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_URI_HANDLER, GstURIHandlerInterface))
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/**
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* GstURIHandler:
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*
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* Opaque #GstURIHandler structure.
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*/
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typedef struct _GstURIHandler GstURIHandler;
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typedef struct _GstURIHandlerInterface GstURIHandlerInterface;
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#include <gst/gstelement.h>
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#include "gstminiobject.h"
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/**
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* GstURIHandlerInterface:
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* @parent: The parent interface type
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* @get_type: Method to tell whether the element handles source or sink URI.
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* @get_protocols: Method to return the list of protocols handled by the element.
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* @get_uri: Method to return the URI currently handled by the element.
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* @set_uri: Method to set a new URI.
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*
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* Any #GstElement using this interface should implement these methods.
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*/
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struct _GstURIHandlerInterface {
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GTypeInterface parent;
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/* vtable */
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/*< public >*/
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/* querying capabilities */
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GstURIType (* get_type) (GType type);
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const gchar * const * (* get_protocols) (GType type);
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/* using the interface */
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gchar * (* get_uri) (GstURIHandler * handler);
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gboolean (* set_uri) (GstURIHandler * handler,
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const gchar * uri,
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GError ** error);
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};
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/* general URI functions */
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GST_API
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gboolean gst_uri_protocol_is_valid (const gchar * protocol);
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GST_API
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gboolean gst_uri_protocol_is_supported (const GstURIType type,
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const gchar *protocol);
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GST_API
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gboolean gst_uri_is_valid (const gchar * uri);
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GST_API
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gchar * gst_uri_get_protocol (const gchar * uri) G_GNUC_MALLOC;
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GST_API
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gboolean gst_uri_has_protocol (const gchar * uri,
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const gchar * protocol);
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GST_API
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gchar * gst_uri_get_location (const gchar * uri) G_GNUC_MALLOC;
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GST_DEPRECATED_FOR(gst_uri_new)
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gchar * gst_uri_construct (const gchar * protocol,
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const gchar * location) G_GNUC_MALLOC;
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GST_API
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gchar * gst_filename_to_uri (const gchar * filename,
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GError ** error) G_GNUC_MALLOC;
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GST_API
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GstElement * gst_element_make_from_uri (const GstURIType type,
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const gchar * uri,
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const gchar * elementname,
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GError ** error) G_GNUC_MALLOC;
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/* accessing the interface */
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GST_API
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GType gst_uri_handler_get_type (void);
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GST_API
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GstURIType gst_uri_handler_get_uri_type (GstURIHandler * handler);
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GST_API
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const gchar * const * gst_uri_handler_get_protocols (GstURIHandler * handler);
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GST_API
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gchar * gst_uri_handler_get_uri (GstURIHandler * handler) G_GNUC_MALLOC;
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GST_API
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gboolean gst_uri_handler_set_uri (GstURIHandler * handler,
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const gchar * uri,
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GError ** error);
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/*
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* GstUri Type macros.
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*/
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#define GST_TYPE_URI (gst_uri_get_type ())
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#define GST_IS_URI(obj) (GST_IS_MINI_OBJECT_TYPE (obj, GST_TYPE_URI))
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#define GST_URI_CAST(obj) ((GstUri *)(obj))
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#define GST_URI_CONST_CAST(obj) ((const GstUri *)(obj))
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#define GST_URI(obj) (GST_URI_CAST(obj))
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/**
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* GstUri:
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*
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* This is a private structure that holds the various parts of a parsed URI.
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*/
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struct _GstUri;
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typedef struct _GstUri GstUri;
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/**
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* GST_URI_NO_PORT:
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*
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* Value for #GstUri<!-- -->.port to indicate no port number.
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*/
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#define GST_URI_NO_PORT 0
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/* used by GST_TYPE_URI */
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GST_API
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GType gst_uri_get_type (void);
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/*
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* Method definitions.
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*/
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GST_API
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GstUri * gst_uri_new (const gchar * scheme,
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const gchar * userinfo,
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const gchar * host,
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guint port,
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const gchar * path,
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const gchar * query,
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const gchar * fragment) G_GNUC_MALLOC;
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GST_API
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GstUri * gst_uri_new_with_base (GstUri * base,
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const gchar * scheme,
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const gchar * userinfo,
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const gchar * host,
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guint port,
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const gchar * path,
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const gchar * query,
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const gchar * fragment) G_GNUC_MALLOC;
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GST_API
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GstUri * gst_uri_from_string (const gchar * uri) G_GNUC_MALLOC;
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GST_API
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GstUri * gst_uri_from_string_with_base (GstUri * base,
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const gchar * uri) G_GNUC_MALLOC;
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GST_API
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gboolean gst_uri_equal (const GstUri * first,
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const GstUri * second);
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GST_API
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GstUri * gst_uri_join (GstUri * base_uri,
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GstUri * ref_uri) G_GNUC_WARN_UNUSED_RESULT;
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GST_API
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gchar * gst_uri_join_strings (const gchar * base_uri,
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const gchar * ref_uri) G_GNUC_MALLOC;
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GST_API
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gboolean gst_uri_is_writable (const GstUri * uri);
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GST_API
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GstUri * gst_uri_make_writable (GstUri * uri) G_GNUC_WARN_UNUSED_RESULT;
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GST_API
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gchar * gst_uri_to_string (const GstUri * uri) G_GNUC_MALLOC;
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GST_API
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gboolean gst_uri_is_normalized (const GstUri * uri);
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GST_API
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gboolean gst_uri_normalize (GstUri * uri);
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GST_API
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const gchar * gst_uri_get_scheme (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_scheme (GstUri * uri, const gchar * scheme);
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GST_API
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const gchar * gst_uri_get_userinfo (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_userinfo (GstUri * uri, const gchar * userinfo);
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GST_API
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const gchar * gst_uri_get_host (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_host (GstUri * uri, const gchar * host);
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GST_API
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guint gst_uri_get_port (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_port (GstUri * uri, guint port);
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GST_API
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gchar * gst_uri_get_path (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_path (GstUri * uri, const gchar * path);
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GST_API
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gchar * gst_uri_get_path_string (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_path_string (GstUri * uri, const gchar * path);
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GST_API
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GList * gst_uri_get_path_segments (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_path_segments (GstUri * uri, GList * path_segments);
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GST_API
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gboolean gst_uri_append_path (GstUri * uri,
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const gchar * relative_path);
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GST_API
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gboolean gst_uri_append_path_segment (GstUri * uri,
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const gchar * path_segment);
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GST_API
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gchar * gst_uri_get_query_string (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_query_string (GstUri * uri, const gchar * query);
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GST_API
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GHashTable * gst_uri_get_query_table (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_query_table (GstUri * uri,
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GHashTable * query_table);
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GST_API
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gboolean gst_uri_set_query_value (GstUri * uri, const gchar * query_key,
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const gchar * query_value);
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GST_API
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gboolean gst_uri_remove_query_key (GstUri * uri, const gchar * query_key);
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GST_API
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gboolean gst_uri_query_has_key (const GstUri * uri,
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const gchar * query_key);
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GST_API
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const gchar * gst_uri_get_query_value (const GstUri * uri,
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const gchar * query_key);
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GST_API
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GList * gst_uri_get_query_keys (const GstUri * uri);
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GST_API
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const gchar * gst_uri_get_fragment (const GstUri * uri);
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GST_API
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gboolean gst_uri_set_fragment (GstUri * uri, const gchar * fragment);
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GST_API
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GHashTable * gst_uri_get_media_fragment_table (const GstUri * uri);
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/**
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* gst_uri_copy:
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* @uri: This #GstUri object.
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*
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* Create a new #GstUri object with the same data as this #GstUri object.
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* If @uri is %NULL then returns %NULL.
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*
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* Returns: (transfer full): A new #GstUri object which is a copy of this
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* #GstUri or %NULL.
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*/
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static inline GstUri *
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gst_uri_copy (const GstUri * uri)
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{
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return GST_URI_CAST (gst_mini_object_copy (GST_MINI_OBJECT_CONST_CAST (uri)));
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}
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/**
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* gst_uri_ref:
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* @uri: (transfer none): This #GstUri object.
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*
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* Add a reference to this #GstUri object. See gst_mini_object_ref() for further
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* info.
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*
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* Returns: This object with the reference count incremented.
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*/
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static inline GstUri *
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gst_uri_ref (GstUri * uri)
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{
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return GST_URI_CAST (gst_mini_object_ref (GST_MINI_OBJECT_CAST (uri)));
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}
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/**
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* gst_uri_unref:
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* @uri: (transfer full): This #GstUri object.
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*
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* Decrement the reference count to this #GstUri object.
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*
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* If the reference count drops to 0 then finalize this object.
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*
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* See gst_mini_object_unref() for further info.
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*/
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static inline void
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gst_uri_unref (GstUri * uri)
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{
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gst_mini_object_unref (GST_MINI_OBJECT_CAST (uri));
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}
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/**
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* gst_clear_uri: (skip)
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* @uri_ptr: a pointer to a #GstUri reference
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*
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* Clears a reference to a #GstUri.
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*
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* @uri_ptr must not be %NULL.
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*
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* If the reference is %NULL then this function does nothing. Otherwise, the
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* reference count of the uri is decreased and the pointer is set to %NULL.
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*
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* Since: 1.18
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*/
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static inline void
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gst_clear_uri (GstUri ** uri_ptr)
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{
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gst_clear_mini_object ((GstMiniObject **) uri_ptr);
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}
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstUri, gst_uri_unref)
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G_END_DECLS
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#endif /* __GST_URI_H__ */
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