UriHandlerT

The URIHandler is an interface that is implemented by Source and Sink GstElement to simplify then handling of URI.

An application can use the following functions to quickly get an element that handles the given URI for reading or writing (gst_element_make_from_uri()).

Source and Sink plugins should implement this interface when possible.

Last reviewed on 2005-11-09 (0.9.4)

template UriHandlerT (

TStruct

) {

protected

GstURIHandler* gstURIHandler;

GstURIHandler* getUriHandlerTStruct();

static GQuark gstUriErrorQuark();

static int isValid(string protocol);

static int isSupported(GstURIType type, string protocol);

static int gstUriIsValid(string uri);

static int gstUriHasProtocol(string uri, string protocol);

static string gstUriGetProtocol(string uri);

static string gstUriGetLocation(string uri);

static string gstUriConstruct(string protocol, string location);

static string gstFilenameToUri(string filename);

static Element gstElementMakeFromUri(GstURIType type, string uri, string elementname);

GstURIType gstUriHandlerGetUriType();

string[] gstUriHandlerGetProtocols();

string gstUriHandlerGetUri();

int gstUriHandlerSetUri(string uri);

}

Members

Functions

getUriHandlerTStruct GstURIHandler* getUriHandlerTStruct(): Get the main Gtk struct
gstUriHandlerGetProtocols string[] gstUriHandlerGetProtocols(): Gets the list of protocols supported by handler. This list may not be modified.
gstUriHandlerGetUri string gstUriHandlerGetUri(): Gets the currently handled URI.
gstUriHandlerGetUriType GstURIType gstUriHandlerGetUriType(): Gets the type of the given URI handler
gstUriHandlerSetUri int gstUriHandlerSetUri(string uri): Tries to set the URI of the given handler.

Static functions

gstElementMakeFromUri Element gstElementMakeFromUri(GstURIType type, string uri, string elementname): Creates an element for handling the given URI.
gstFilenameToUri string gstFilenameToUri(string filename): Similar to g_filename_to_uri(), but attempts to handle relative file paths as well. Before converting filename into an URI, it will be prefixed by the current working directory if it is a relative path, and then the path will be canonicalised so that it doesn't contain any './' or '../' segments. On Windows filename should be in UTF-8 encoding.
gstUriConstruct string gstUriConstruct(string protocol, string location): Constructs a URI for a given valid protocol and location. Free-function: g_free
gstUriErrorQuark GQuark gstUriErrorQuark()
gstUriGetLocation string gstUriGetLocation(string uri): Extracts the location out of a given valid URI, ie. the protocol and "://" are stripped from the URI, which means that the location returned includes the hostname if one is specified. The returned string must be freed using g_free(). Free-function: g_free
gstUriGetProtocol string gstUriGetProtocol(string uri): Extracts the protocol out of a given valid URI. The returned string must be freed using g_free().
gstUriHasProtocol int gstUriHasProtocol(string uri, string protocol): Checks if the protocol of a given valid URI matches protocol.
gstUriIsValid int gstUriIsValid(string uri): Tests if the given string is a valid URI identifier. URIs start with a valid scheme followed by ":" and maybe a string identifying the location.
isSupported int isSupported(GstURIType type, string protocol): Checks if an element exists that supports the given URI protocol. Note that a positive return value does not imply that a subsequent call to gst_element_make_from_uri() is guaranteed to work.
isValid int isValid(string protocol): Tests if the given string is a valid protocol identifier. Protocols must consist of alphanumeric characters, '+', '-' and '.' and must start with a alphabetic character. See RFC 3986 Section 3.1.

Variables

gstURIHandler GstURIHandler* gstURIHandler;: the main Gtk struct

UriHandlerT

Members

Functions

Static functions

Variables

Meta

Source