1GStreamer(3)          User Contributed Perl Documentation         GStreamer(3)
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NAME

6       GStreamer - Perl interface to version 0.10.x of the GStreamer library
7

SYNOPSIS

9         use GStreamer -init;
10
11         my $loop = Glib::MainLoop -> new();
12
13         # set up
14         my $play = GStreamer::ElementFactory -> make("playbin", "play");
15         $play -> set(uri => Glib::filename_to_uri $file, "localhost");
16         $play -> get_bus() -> add_watch(\&my_bus_callback, $loop);
17         $play -> set_state("playing");
18
19         # run
20         $loop -> run();
21
22         # clean up
23         $play -> set_state("null");
24
25         sub my_bus_callback {
26           my ($bus, $message, $loop) = @_;
27
28           if ($message -> type & "error") {
29             warn $message -> error;
30             $loop -> quit();
31           }
32
33           elsif ($message -> type & "eos") {
34             $loop -> quit();
35           }
36
37           # remove message from the queue
38           return TRUE;
39         }
40

ABSTRACT

42       NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
43
44       This module only works with the 0.10.x series of the GStreamer C
45       libraries.  There is another Perl module, GStreamer1, that is intended
46       for the 1.x series of the GStreamer C libraries.  GStreamer1 is located
47       at <https://metacpan.org/pod/GStreamer1>.
48
49       The two C libraries, as well as their associated Perl modules, can be
50       installed concurrently on the same host.
51
52       See the POD for GStreamer1 (<https://metacpan.org/pod/GStreamer1>) for
53       more information about that module.
54
55       NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
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57       GStreamer makes everybody dance like crazy.  It provides the means to
58       play, stream, and convert nearly any type of media -- be it audio or
59       video.  GStreamer wraps version 0.10.x of the GStreamer C libraries in
60       a nice and Perlish way, freeing the programmer from any memory
61       management and object casting hassles.
62

INITIALIZATION

64       GStreamer->init
65           Initializes GStreamer.  Automatically parses @ARGV, stripping any
66           options known to GStreamer.
67
68       boolean = GStreamer->init_check
69           Checks if initialization is possible.  Returns TRUE if so.
70
71       When importing GStreamer, you can pass the "-init" option to have
72       GStreamer->init automatically called for you.  If you need to know if
73       initialization is possible without actually doing it, use
74       GStreamer->init_check.
75

VERSION CHECKING

77       boolean = GStreamer->CHECK_VERSION (major, minor, micro)
78           ·   major (integer)
79
80           ·   minor (integer)
81
82           ·   micro (integer)
83
84           Returns TRUE if the GStreamer library version GStreamer was
85           compiled against is newer than the one specified by the three
86           arguments.
87
88       (major, minor, micro) = GStreamer->GET_VERSION_INFO
89           Returns the version information of the GStreamer library GStreamer
90           was compiled against.
91
92       (major, minor, micro) = GStreamer->version
93           Returns the version information of the GStreamer library GStreamer
94           is currently running against.
95

SEE ALSO

97       GStreamer::index
98           Lists the automatically generated API documentation pages.
99
100       <http://gstreamer.freedesktop.org/>
101           GStreamer's website has much useful information, including a good
102           tutorial and of course the API reference, which is canonical for
103           GStreamer as well.
104
105       Gtk2::api
106           Just like Gtk2, GStreamer tries to stick closely to the C API,
107           deviating from it only when it makes things easier and/or more
108           Perlish.  Gtk2::api gives general rules for how to map from the C
109           API to Perl, most of which also apply to GStreamer.
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111       Glib
112           Glib is the foundation this binding is built upon.  If you look for
113           information on basic stuff like signals or object properties, this
114           is what you should read.
115
116       GStreamer1
117           Perl bindings for version 1.x of the GStreamer C libraries.  The
118           two C libraries, as well as their associated Perl modules, can be
119           installed concurrently on the same host.
120

AUTHORS

122       Torsten Schoenfeld <kaffeetisch at gmx dot de>
123       Brett Kosinski <brettk at frodo.dyn.gno dot org>
124

126       Copyright (C) 2005-2011, 2013 by the gtk2-perl team
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130perl v5.30.0                      2019-09-19                      GStreamer(3)
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