typefind

Determines the media-type of a stream. It applies typefind functions in the order of their rank. Once the type has been detected it sets its src pad caps to the found media type.

Whenever a type is found the have-type signal is emitted, either from the streaming thread or the application thread (the latter may happen when typefinding is done pull-based from the state change function).

Plugins can register custom typefinders by using GstTypeFindFactory.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──typefind

Factory details

Authors: – Benjamin Otte

Classification: – Generic

Rank – none

Plugin – coreelements

Package – GStreamer

Pad Templates

`sink`

ANY

Presence – always

Direction – sink

Object type – GstPad

`src`

ANY

Presence – always

Direction – src

Object type – GstPad

Signals

have-type

have_type_callback (GstElement * typefind,
                    guint probability,
                    GstCaps * caps,
                    gpointer udata)

def have_type_callback (typefind, probability, caps, udata):
    #python callback for the 'have-type' signal

function have_type_callback(typefind: GstElement * typefind, probability: guint probability, caps: GstCaps * caps, udata: gpointer udata): {
    // javascript callback for the 'have-type' signal
}

This signal gets emitted when the type and its probability has been found.

Parameters:

typefind –

the typefind instance

probability –

the probability of the type found

caps –

the caps of the type found

udata –

No description available

Flags: Run Last

Properties

caps

“caps” GstCaps *

detected capabilities in stream

Flags : Read

force-caps

“force-caps” GstCaps *

force caps without doing a typefind

Flags : Read / Write

minimum

“minimum” guint

minimum probability required to accept caps

Flags : Read / Write

Default value : 1

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