Static Public Member Functions

gnash::media::gst::GstUtil Class Reference

Generalized Gstreamer utilities for pipeline configuration. More...

#include <GstUtil.h>

List of all members.

Static Public Member Functions

static GstElement * get_audiosink_element ()
 Returns a pointer to GstElement representing a user-configurable audio sink, or NULL if such a sink could not be created.
static bool check_missing_plugins (GstCaps *caps)
 Check for missing plugins and try to install them if necessary.

Detailed Description

Generalized Gstreamer utilities for pipeline configuration.

Warning:
This class is not guaranteed to be thread-safe.

Member Function Documentation

bool gnash::media::gst::GstUtil::check_missing_plugins ( GstCaps *  caps  )  [static]

Check for missing plugins and try to install them if necessary.

The installation, if applicable, will happen synchronously!

Parameters:
caps Indicates the type of media to search for.
Returns:
if there is a decoder available to decode the passed type, or if we succeeded in installing one, returns true. Otherwise, returns false.

References _, and swfdec_gst_get_element_factory().

GstElement * gnash::media::gst::GstUtil::get_audiosink_element (  )  [static]

Returns a pointer to GstElement representing a user-configurable audio sink, or NULL if such a sink could not be created.

get_audiosink_element() tries the following strategies to get an audiosink: 1. Looks into ~/.gnashrc for a pipeline description given by the property GSTAudioSink 2. If none (or invalid) is found, tries "autoaudiosink" 3. If autoaudiosink comes up blank, tries "gconfaudiosink" 4. If gconfaudiosink can't produce a non-NULL element, the method returns NULL.

A pipeline description is specified in one of two ways in ~/.gnashrc: 1. A "trivial" pipeline is simply the name of an element, like "fakesink" 2. A "non-trivial" pipeline is a full sub-pipeline specification, given in a way that complies with the gst-launch manual page. The audiosink's sub-pipeline must accept x/raw-{int,float} data and feed it into a sink. The entire audiosink will be placed in a GstBin named "gnashrcsink" with a number based on the number of gnashrcsinks that have been allocated so far.

References _, gnash::RcInitFile::getDefaultInstance(), and gnash::RcInitFile::getGstAudioSink().


The documentation for this class was generated from the following files: