typefind

typefind — Finds the media type of a stream

Synopsis

                    GstTypeFindElement;

Object Hierarchy

  GObject
   +----GstObject
         +----GstElement
               +----GstTypeFindElement

Properties

  "caps"                     GstCaps*              : Read
  "maximum"                  guint                 : Read / Write
  "minimum"                  guint                 : Read / Write
  "force-caps"               GstCaps*              : Read / Write

Signals

  "have-type"                                      : Run First

Description

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

Plugins can register custom typefinders by using GstTypeFindFactory.

Synopsis

Element Information

plugin coreelements
author Benjamin Otte <[email protected]>
class Generic

Element Pads

name sink
direction sink
presence always
details ANY
name src
direction source
presence always
details ANY

Details

GstTypeFindElement

typedef struct _GstTypeFindElement GstTypeFindElement;

Opaque GstTypeFindElement data structure

Property Details

The "caps" property

  "caps"                     GstCaps*              : Read

detected capabilities in stream.

The "maximum" property

  "maximum"                  guint                 : Read / Write

probability to stop typefinding (deprecated; non-functional).

Allowed values: [1,100]

Default value: 100

The "minimum" property

  "minimum"                  guint                 : Read / Write

minimum probability required to accept caps.

Allowed values: [1,100]

Default value: 1

The "force-caps" property

  "force-caps"               GstCaps*              : Read / Write

force caps without doing a typefind.

Signal Details

The "have-type" signal

void                user_function                      (GstTypeFindElement *typefind,
                                                        guint               probability,
                                                        GstCaps            *caps,
                                                        gpointer            user_data)        : Run First

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

typefind : the typefind instance
probability : the probability of the type found
caps : the caps of the type found
user_data : user data set when the signal handler was connected.
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