Gtk2-Perl

Description A set of Perl bindings for Gtk+ 2.0 and various related libraries
Gtk2-Perl > Perl Manuals > GStreamer-Message
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NAME ^

GStreamer::Message

DESCRIPTION ^

The various nmessage types are represented as subclasses:

GStreamer::Message::EOS
GStreamer::Message::Error
GStreamer::Message::Warning
GStreamer::Message::Info
GStreamer::Message::Tag
GStreamer::Message::Buffering
GStreamer::Message::StateChanged
GStreamer::Message::StateDirty
GStreamer::Message::StepDone
GStreamer::Message::ClockProvide
GStreamer::Message::ClockLost
GStreamer::Message::NewClock
GStreamer::Message::StructureChange
GStreamer::Message::StreamStatus
GStreamer::Message::Application
GStreamer::Message::Element
GStreamer::Message::SegmentStart
GStreamer::Message::SegmentDone
GStreamer::Message::Duration
GStreamer::Message::Latency [0.10.12]
GStreamer::Message::AsyncStart [0.10.13]
GStreamer::Message::AsyncDone [0.10.13]

To create a new message, you call the constructor of the corresponding class.

To check if a message is of a certain type, use the & operator on the type method:

  if ($message -> type & "error") {
    # ...
  }

  elsif ($message -> type & "eos") {
    # ...
  }

To get to the content of a message, call the corresponding accessor:

  if ($message -> type & "state-changed") {
    my $old_state = $message -> old_state;
    my $new_state = $message -> new_state;
    my $pending = $message -> pending;

    # ...
  }

  elsif ($message -> type & "segment-done") {
    my $format = $message -> format;
    my $position = $message -> position;

    # ...
  }

METHODS ^

object = $message->src

structure = $message->get_structure

uint64 = $message->timestamp

messagetype = $message->type

ENUMS AND FLAGS ^

flags GStreamer::MessageType

* 'unknown' / 'GST_MESSAGE_UNKNOWN'
* 'eos' / 'GST_MESSAGE_EOS'
* 'error' / 'GST_MESSAGE_ERROR'
* 'warning' / 'GST_MESSAGE_WARNING'
* 'info' / 'GST_MESSAGE_INFO'
* 'tag' / 'GST_MESSAGE_TAG'
* 'buffering' / 'GST_MESSAGE_BUFFERING'
* 'state-changed' / 'GST_MESSAGE_STATE_CHANGED'
* 'state-dirty' / 'GST_MESSAGE_STATE_DIRTY'
* 'step-done' / 'GST_MESSAGE_STEP_DONE'
* 'clock-provide' / 'GST_MESSAGE_CLOCK_PROVIDE'
* 'clock-lost' / 'GST_MESSAGE_CLOCK_LOST'
* 'new-clock' / 'GST_MESSAGE_NEW_CLOCK'
* 'structure-change' / 'GST_MESSAGE_STRUCTURE_CHANGE'
* 'stream-status' / 'GST_MESSAGE_STREAM_STATUS'
* 'application' / 'GST_MESSAGE_APPLICATION'
* 'element' / 'GST_MESSAGE_ELEMENT'
* 'segment-start' / 'GST_MESSAGE_SEGMENT_START'
* 'segment-done' / 'GST_MESSAGE_SEGMENT_DONE'
* 'duration' / 'GST_MESSAGE_DURATION'
* 'latency' / 'GST_MESSAGE_LATENCY'
* 'async-start' / 'GST_MESSAGE_ASYNC_START'
* 'async-done' / 'GST_MESSAGE_ASYNC_DONE'
* 'any' / 'GST_MESSAGE_ANY'

SEE ALSO ^

GStreamer

COPYRIGHT ^

Copyright (C) 2005-2008 by the gtk2-perl team.

This software is licensed under the LGPL. See GStreamer for a full notice.