GStreamer::Message(3pm) User Contributed Perl Documentation GStreamer::Message(3pm)
NAME
GStreamer::Message - Lightweight objects to signal the application of pipeline events
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
64 bit unsigned = $message->timestamp
messagetype = $message->type
ENUMS AND FLAGS
flags GStreamer::MessageType
o 'unknown' / 'GST_MESSAGE_UNKNOWN'
o 'eos' / 'GST_MESSAGE_EOS'
o 'error' / 'GST_MESSAGE_ERROR'
o 'warning' / 'GST_MESSAGE_WARNING'
o 'info' / 'GST_MESSAGE_INFO'
o 'tag' / 'GST_MESSAGE_TAG'
o 'buffering' / 'GST_MESSAGE_BUFFERING'
o 'state-changed' / 'GST_MESSAGE_STATE_CHANGED'
o 'state-dirty' / 'GST_MESSAGE_STATE_DIRTY'
o 'step-done' / 'GST_MESSAGE_STEP_DONE'
o 'clock-provide' / 'GST_MESSAGE_CLOCK_PROVIDE'
o 'clock-lost' / 'GST_MESSAGE_CLOCK_LOST'
o 'new-clock' / 'GST_MESSAGE_NEW_CLOCK'
o 'structure-change' / 'GST_MESSAGE_STRUCTURE_CHANGE'
o 'stream-status' / 'GST_MESSAGE_STREAM_STATUS'
o 'application' / 'GST_MESSAGE_APPLICATION'
o 'element' / 'GST_MESSAGE_ELEMENT'
o 'segment-start' / 'GST_MESSAGE_SEGMENT_START'
o 'segment-done' / 'GST_MESSAGE_SEGMENT_DONE'
o 'duration' / 'GST_MESSAGE_DURATION'
o 'latency' / 'GST_MESSAGE_LATENCY'
o 'async-start' / 'GST_MESSAGE_ASYNC_START'
o 'async-done' / 'GST_MESSAGE_ASYNC_DONE'
o 'request-state' / 'GST_MESSAGE_REQUEST_STATE'
o 'step-start' / 'GST_MESSAGE_STEP_START'
o 'qos' / 'GST_MESSAGE_QOS'
o 'progress' / 'GST_MESSAGE_PROGRESS'
o 'any' / 'GST_MESSAGE_ANY'
SEE ALSO
GStreamer
COPYRIGHT
Copyright (C) 2005-2011 by the gtk2-perl team.
This software is licensed under the LGPL. See GStreamer for a full notice.
perl v5.14.2 2012-03-01 GStreamer::Message(3pm)