Package ch.bailu.gtk.gst

Klasse Event

java.lang.Object
ch.bailu.gtk.type.Type
ch.bailu.gtk.type.Pointer
ch.bailu.gtk.type.Record
ch.bailu.gtk.gst.Event
Alle implementierten Schnittstellen:
PointerInterface
public class Event extends Record
The event class provides factory methods to construct events for sending
and functions to query (parse) received events.

Events are usually created with gst_event_new_*() which takes event-type
specific parameters as arguments.
To send an event application will usually use gst_element_send_event() and
elements will use gst_pad_send_event() or gst_pad_push_event().
The event should be unreffed with gst_event_unref() if it has not been sent.

Events that have been received can be parsed with their respective
gst_event_parse_*() functions. It is valid to pass %NULL for unwanted details.

Events are passed between elements in parallel to the data stream. Some events
are serialized with buffers, others are not. Some events only travel downstream,
others only upstream. Some events can travel both upstream and downstream.

The events are used to signal special conditions in the datastream such as
EOS (end of stream) or the start of a new stream-segment.
Events are also used to flush the pipeline of any pending data.

Most of the event API is used inside plugins. Applications usually only
construct and use seek events.
To do that gst_event_new_seek() is used to create a seek event. It takes
the needed parameters to specify seeking time and mode. 
<!-- language="C" -->
   GstEvent *event;
   gboolean result;
   ...
   // construct a seek event to play the media from second 2 to 5, flush
   // the pipeline to decrease latency.
   event = gst_event_new_seek (1.0,
      GST_FORMAT_TIME,
      GST_SEEK_FLAG_FLUSH,
      GST_SEEK_TYPE_SET, 2 * GST_SECOND,
      GST_SEEK_TYPE_SET, 5 * GST_SECOND);
   ...
   result = gst_element_send_event (pipeline, event);
   if (!result)
     g_warning ("seek failed");
   ...

https://gstreamer.freedesktop.org/documentation/gstreamer/gi-index.html

  • Felddetails

  • Konstruktordetails

  • Methodendetails

    • getClassHandler

      public static ClassHandler getClassHandler()

    • setFieldType

      public void setFieldType(int type)
      the #GstEventType of the event

    • getFieldType

      public int getFieldType()
      the #GstEventType of the event

    • setFieldTimestamp

      public void setFieldTimestamp(long timestamp)
      the timestamp of the event

    • getFieldTimestamp

      public long getFieldTimestamp()
      the timestamp of the event

    • setFieldSeqnum

      public void setFieldSeqnum(int seqnum)
      the sequence number of the event

    • getFieldSeqnum

      public int getFieldSeqnum()
      the sequence number of the event

    • newBufferSizeEvent

      public static Event newBufferSizeEvent(int format, long minsize, long maxsize, boolean async)
      Create a new buffersize event. The event is sent downstream and notifies
      elements that they should provide a buffer of the specified dimensions.

      When the @async flag is set, a thread boundary is preferred.
      Parameter:
      format - buffer format
      minsize - minimum buffer size
      maxsize - maximum buffer size
      async - thread behavior
      Gibt zurück:
      a new #GstEvent

    • newCapsEvent

      public static Event newCapsEvent(@Nonnull Caps caps)
      Create a new CAPS event for @caps. The caps event can only travel downstream
      synchronized with the buffer flow and contains the format of the buffers
      that will follow after the event.
      Parameter:
      caps - a #GstCaps
      Gibt zurück:
      the new CAPS event.

    • newCustomEvent

      public static Event newCustomEvent(int type, @Nonnull Structure structure)
      Create a new custom-typed event. This can be used for anything not
      handled by other event-specific functions to pass an event to another
      element.

      Make sure to allocate an event type with the #GST_EVENT_MAKE_TYPE macro,
      assigning a free number and filling in the correct direction and
      serialization flags.

      New custom events can also be created by subclassing the event type if
      needed.
      Parameter:
      type - The type of the new event
      structure - the structure for the event. The event will take ownership of the structure.
      Gibt zurück:
      the new custom event.

    • newEosEvent

      public static Event newEosEvent()
      Create a new EOS event. The eos event can only travel downstream
      synchronized with the buffer flow. Elements that receive the EOS
      event on a pad can return #GST_FLOW_EOS as a #GstFlowReturn
      when data after the EOS event arrives.

      The EOS event will travel down to the sink elements in the pipeline
      which will then post the #GST_MESSAGE_EOS on the bus after they have
      finished playing any buffered data.

      When all sinks have posted an EOS message, an EOS message is
      forwarded to the application.

      The EOS event itself will not cause any state transitions of the pipeline.
      Gibt zurück:
      the new EOS event.

    • newFlushStartEvent

      public static Event newFlushStartEvent()
      Allocate a new flush start event. The flush start event can be sent
      upstream and downstream and travels out-of-bounds with the dataflow.

      It marks pads as being flushing and will make them return
      #GST_FLOW_FLUSHING when used for data flow with gst_pad_push(),
      gst_pad_chain(), gst_pad_get_range() and gst_pad_pull_range().
      Any event (except a #GST_EVENT_FLUSH_STOP) received
      on a flushing pad will return %FALSE immediately.

      Elements should unlock any blocking functions and exit their streaming
      functions as fast as possible when this event is received.

      This event is typically generated after a seek to flush out all queued data
      in the pipeline so that the new media is played as soon as possible.
      Gibt zurück:
      a new flush start event.

    • newFlushStopEvent

      public static Event newFlushStopEvent(boolean reset_time)
      Allocate a new flush stop event. The flush stop event can be sent
      upstream and downstream and travels serialized with the dataflow.
      It is typically sent after sending a FLUSH_START event to make the
      pads accept data again.

      Elements can process this event synchronized with the dataflow since
      the preceding FLUSH_START event stopped the dataflow.

      This event is typically generated to complete a seek and to resume
      dataflow.
      Parameter:
      reset_time - if time should be reset
      Gibt zurück:
      a new flush stop event.

    • newGapEvent

      public static Event newGapEvent(long timestamp, long duration)
      Create a new GAP event. A gap event can be thought of as conceptually
      equivalent to a buffer to signal that there is no data for a certain
      amount of time. This is useful to signal a gap to downstream elements
      which may wait for data, such as muxers or mixers or overlays, especially
      for sparse streams such as subtitle streams.
      Parameter:
      timestamp - the start time (pts) of the gap
      duration - the duration of the gap
      Gibt zurück:
      the new GAP event.

    • newInstantRateChangeEvent

      public static Event newInstantRateChangeEvent(double rate_multiplier, int new_flags)
      Create a new instant-rate-change event. This event is sent by seek
      handlers (e.g. demuxers) when receiving a seek with the
      %GST_SEEK_FLAG_INSTANT_RATE_CHANGE and signals to downstream elements that
      the playback rate in the existing segment should be immediately multiplied
      by the @rate_multiplier factor.

      The flags provided replace any flags in the existing segment, for the
      flags within the %GST_SEGMENT_INSTANT_FLAGS set. Other GstSegmentFlags
      are ignored and not transferred in the event.
      Parameter:
      rate_multiplier - the multiplier to be applied to the playback rate
      new_flags - A new subset of segment flags to replace in segments
      Gibt zurück:
      the new instant-rate-change event.

    • newInstantRateSyncTimeEvent

      public static Event newInstantRateSyncTimeEvent(double rate_multiplier, long running_time, long upstream_running_time)
      Create a new instant-rate-sync-time event. This event is sent by the
      pipeline to notify elements handling the instant-rate-change event about
      the running-time when the new rate should be applied. The running time
      may be in the past when elements handle this event, which can lead to
      switching artifacts. The magnitude of those depends on the exact timing
      of event delivery to each element and the magnitude of the change in
      playback rate being applied.

      The @running_time and @upstream_running_time are the same if this
      is the first instant-rate adjustment, but will differ for later ones
      to compensate for the accumulated offset due to playing at a rate
      different to the one indicated in the playback segments.
      Parameter:
      rate_multiplier - the new playback rate multiplier to be applied
      running_time - Running time when the rate change should be applied
      upstream_running_time - The upstream-centric running-time when the rate change should be applied.
      Gibt zurück:
      the new instant-rate-sync-time event.

    • newLatencyEvent

      public static Event newLatencyEvent(long latency)
      Create a new latency event. The event is sent upstream from the sinks and
      notifies elements that they should add an additional @latency to the
      running time before synchronising against the clock.

      The latency is mostly used in live sinks and is always expressed in
      the time format.
      Parameter:
      latency - the new latency value
      Gibt zurück:
      a new #GstEvent

    • newNavigationEvent

      public static Event newNavigationEvent(@Nonnull Structure structure)
      Create a new navigation event from the given description.
      Parameter:
      structure - description of the event. The event will take ownership of the structure. See #GstNavigation for more specific constructors.
      Gibt zurück:
      a new #GstEvent

    • newProtectionEvent

      public static Event newProtectionEvent(@Nonnull Str system_id, @Nonnull Buffer data, @Nonnull Str origin)
      Creates a new event containing information specific to a particular
      protection system (uniquely identified by @system_id), by which that
      protection system can acquire key(s) to decrypt a protected stream.

      In order for a decryption element to decrypt media
      protected using a specific system, it first needs all the
      protection system specific information necessary to acquire the decryption
      key(s) for that stream. The functions defined here enable this information
      to be passed in events from elements that extract it
      (e.g., ISOBMFF demuxers, MPEG DASH demuxers) to protection decrypter
      elements that use it.

      Events containing protection system specific information are created using
      #gst_event_new_protection, and they can be parsed by downstream elements
      using #gst_event_parse_protection.

      In Common Encryption, protection system specific information may be located
      within ISOBMFF files, both in movie (moov) boxes and movie fragment (moof)
      boxes; it may also be contained in ContentProtection elements within MPEG
      DASH MPDs. The events created by #gst_event_new_protection contain data
      identifying from which of these locations the encapsulated protection system
      specific information originated. This origin information is required as
      some protection systems use different encodings depending upon where the
      information originates.

      The events returned by gst_event_new_protection() are implemented
      in such a way as to ensure that the most recently-pushed protection info
      event of a particular @origin and @system_id will
      be stuck to the output pad of the sending element.
      Parameter:
      system_id - a string holding a UUID that uniquely identifies a protection system.
      data - a #GstBuffer holding protection system specific information. The reference count of the buffer will be incremented by one.
      origin - a string indicating where the protection information carried in the event was extracted from. The allowed values of this string will depend upon the protection scheme.
      Gibt zurück:
      a #GST_EVENT_PROTECTION event.

    • newProtectionEvent

      public static Event newProtectionEvent(String system_id, @Nonnull Buffer data, String origin)
      Creates a new event containing information specific to a particular
      protection system (uniquely identified by @system_id), by which that
      protection system can acquire key(s) to decrypt a protected stream.

      In order for a decryption element to decrypt media
      protected using a specific system, it first needs all the
      protection system specific information necessary to acquire the decryption
      key(s) for that stream. The functions defined here enable this information
      to be passed in events from elements that extract it
      (e.g., ISOBMFF demuxers, MPEG DASH demuxers) to protection decrypter
      elements that use it.

      Events containing protection system specific information are created using
      #gst_event_new_protection, and they can be parsed by downstream elements
      using #gst_event_parse_protection.

      In Common Encryption, protection system specific information may be located
      within ISOBMFF files, both in movie (moov) boxes and movie fragment (moof)
      boxes; it may also be contained in ContentProtection elements within MPEG
      DASH MPDs. The events created by #gst_event_new_protection contain data
      identifying from which of these locations the encapsulated protection system
      specific information originated. This origin information is required as
      some protection systems use different encodings depending upon where the
      information originates.

      The events returned by gst_event_new_protection() are implemented
      in such a way as to ensure that the most recently-pushed protection info
      event of a particular @origin and @system_id will
      be stuck to the output pad of the sending element.
      Parameter:
      system_id - a string holding a UUID that uniquely identifies a protection system.
      data - a #GstBuffer holding protection system specific information. The reference count of the buffer will be incremented by one.
      origin - a string indicating where the protection information carried in the event was extracted from. The allowed values of this string will depend upon the protection scheme.
      Gibt zurück:
      a #GST_EVENT_PROTECTION event.

    • newReconfigureEvent

      public static Event newReconfigureEvent()
      Create a new reconfigure event. The purpose of the reconfigure event is
      to travel upstream and make elements renegotiate their caps or reconfigure
      their buffer pools. This is useful when changing properties on elements
      or changing the topology of the pipeline.
      Gibt zurück:
      a new #GstEvent

    • newSeekEvent

      public static Event newSeekEvent(double rate, int format, int flags, int start_type, long start, int stop_type, long stop)
      Allocate a new seek event with the given parameters.

      The seek event configures playback of the pipeline between @start to @stop
      at the speed given in @rate, also called a playback segment.
      The @start and @stop values are expressed in @format.

      A @rate of 1.0 means normal playback rate, 2.0 means double speed.
      Negatives values means backwards playback. A value of 0.0 for the
      rate is not allowed and should be accomplished instead by PAUSING the
      pipeline.

      A pipeline has a default playback segment configured with a start
      position of 0, a stop position of -1 and a rate of 1.0. The currently
      configured playback segment can be queried with #GST_QUERY_SEGMENT.

      @start_type and @stop_type specify how to adjust the currently configured
      start and stop fields in playback segment. Adjustments can be made relative
      or absolute to the last configured values. A type of #GST_SEEK_TYPE_NONE
      means that the position should not be updated.

      When the rate is positive and @start has been updated, playback will start
      from the newly configured start position.

      For negative rates, playback will start from the newly configured stop
      position (if any). If the stop position is updated, it must be different from
      -1 (#GST_CLOCK_TIME_NONE) for negative rates.

      It is not possible to seek relative to the current playback position, to do
      this, PAUSE the pipeline, query the current playback position with
      #GST_QUERY_POSITION and update the playback segment current position with a
      #GST_SEEK_TYPE_SET to the desired position.
      Parameter:
      rate - The new playback rate
      format - The format of the seek values
      flags - The optional seek flags
      start_type - The type and flags for the new start position
      start - The value of the new start position
      stop_type - The type and flags for the new stop position
      stop - The value of the new stop position
      Gibt zurück:
      a new seek event.

    • newSegmentEvent

      public static Event newSegmentEvent(@Nonnull Segment segment)
      Create a new SEGMENT event for @segment. The segment event can only travel
      downstream synchronized with the buffer flow and contains timing information
      and playback properties for the buffers that will follow.

      The segment event marks the range of buffers to be processed. All
      data not within the segment range is not to be processed. This can be
      used intelligently by plugins to apply more efficient methods of skipping
      unneeded data. The valid range is expressed with the @start and @stop
      values.

      The time value of the segment is used in conjunction with the start
      value to convert the buffer timestamps into the stream time. This is
      usually done in sinks to report the current stream_time.
      @time represents the stream_time of a buffer carrying a timestamp of
      @start. @time cannot be -1.

      @start cannot be -1, @stop can be -1. If there
      is a valid @stop given, it must be greater or equal the @start, including
      when the indicated playback @rate is < 0.

      The @applied_rate value provides information about any rate adjustment that
      has already been made to the timestamps and content on the buffers of the
      stream. (@rate * @applied_rate) should always equal the rate that has been
      requested for playback. For example, if an element has an input segment
      with intended playback @rate of 2.0 and applied_rate of 1.0, it can adjust
      incoming timestamps and buffer content by half and output a segment event
      with @rate of 1.0 and @applied_rate of 2.0

      After a segment event, the buffer stream time is calculated with:

      time + (TIMESTAMP(buf) - start) * ABS (rate * applied_rate)
      Parameter:
      segment - a #GstSegment
      Gibt zurück:
      the new SEGMENT event.

    • newSegmentDoneEvent

      public static Event newSegmentDoneEvent(int format, long position)
      Create a new segment-done event. This event is sent by elements that
      finish playback of a segment as a result of a segment seek.
      Parameter:
      format - The format of the position being done
      position - The position of the segment being done
      Gibt zurück:
      a new #GstEvent

    • newSelectStreamsEvent

      public static Event newSelectStreamsEvent(@Nonnull List streams)
      Allocate a new select-streams event.

      The select-streams event requests the specified @streams to be activated.

      The list of @streams corresponds to the "Stream ID" of each stream to be
      activated. Those ID can be obtained via the #GstStream objects present
      in #GST_EVENT_STREAM_START, #GST_EVENT_STREAM_COLLECTION or
      #GST_MESSAGE_STREAM_COLLECTION.

      Note: The list of @streams can not be empty.
      Parameter:
      streams - the list of streams to activate
      Gibt zurück:
      a new select-streams event.

    • newSinkMessageEvent

      public static Event newSinkMessageEvent(@Nonnull Str name, @Nonnull Message msg)
      Create a new sink-message event. The purpose of the sink-message event is
      to instruct a sink to post the message contained in the event synchronized
      with the stream.

      @name is used to store multiple sticky events on one pad.
      Parameter:
      name - a name for the event
      msg - the #GstMessage to be posted
      Gibt zurück:
      a new #GstEvent

    • newSinkMessageEvent

      public static Event newSinkMessageEvent(String name, @Nonnull Message msg)
      Create a new sink-message event. The purpose of the sink-message event is
      to instruct a sink to post the message contained in the event synchronized
      with the stream.

      @name is used to store multiple sticky events on one pad.
      Parameter:
      name - a name for the event
      msg - the #GstMessage to be posted
      Gibt zurück:
      a new #GstEvent

    • newStepEvent

      public static Event newStepEvent(int format, long amount, double rate, boolean flush, boolean intermediate)
      Create a new step event. The purpose of the step event is to instruct a sink
      to skip @amount (expressed in @format) of media. It can be used to implement
      stepping through the video frame by frame or for doing fast trick modes.

      A rate of <= 0.0 is not allowed. Pause the pipeline, for the effect of rate
      = 0.0 or first reverse the direction of playback using a seek event to get
      the same effect as rate < 0.0.

      The @flush flag will clear any pending data in the pipeline before starting
      the step operation.

      The @intermediate flag instructs the pipeline that this step operation is
      part of a larger step operation.
      Parameter:
      format - the format of @amount
      amount - the amount of data to step
      rate - the step rate
      flush - flushing steps
      intermediate - intermediate steps
      Gibt zurück:
      a new #GstEvent

    • newStreamCollectionEvent

      public static Event newStreamCollectionEvent(@Nonnull StreamCollection collection)
      Create a new STREAM_COLLECTION event. The stream collection event can only
      travel downstream synchronized with the buffer flow.

      Source elements, demuxers and other elements that manage collections
      of streams and post #GstStreamCollection messages on the bus also send
      this event downstream on each pad involved in the collection, so that
      activation of a new collection can be tracked through the downstream
      data flow.
      Parameter:
      collection - Active collection for this data flow
      Gibt zurück:
      the new STREAM_COLLECTION event.

    • newStreamGroupDoneEvent

      public static Event newStreamGroupDoneEvent(int group_id)
      Create a new Stream Group Done event. The stream-group-done event can
      only travel downstream synchronized with the buffer flow. Elements
      that receive the event on a pad should handle it mostly like EOS,
      and emit any data or pending buffers that would depend on more data
      arriving and unblock, since there won't be any more data.

      This event is followed by EOS at some point in the future, and is
      generally used when switching pads - to unblock downstream so that
      new pads can be exposed before sending EOS on the existing pads.
      Parameter:
      group_id - the group id of the stream group which is ending
      Gibt zurück:
      the new stream-group-done event.

    • newStreamStartEvent

      public static Event newStreamStartEvent(@Nonnull Str stream_id)
      Create a new STREAM_START event. The stream start event can only
      travel downstream synchronized with the buffer flow. It is expected
      to be the first event that is sent for a new stream.

      Source elements, demuxers and other elements that create new streams
      are supposed to send this event as the first event of a new stream. It
      should not be sent after a flushing seek or in similar situations
      and is used to mark the beginning of a new logical stream. Elements
      combining multiple streams must ensure that this event is only forwarded
      downstream once and not for every single input stream.

      The @stream_id should be a unique string that consists of the upstream
      stream-id, / as separator and a unique stream-id for this specific
      stream. A new stream-id should only be created for a stream if the upstream
      stream is split into (potentially) multiple new streams, e.g. in a demuxer,
      but not for every single element in the pipeline.
      gst_pad_create_stream_id() or gst_pad_create_stream_id_printf() can be
      used to create a stream-id. There are no particular semantics for the
      stream-id, though it should be deterministic (to support stream matching)
      and it might be used to order streams (besides any information conveyed by
      stream flags).
      Parameter:
      stream_id - Identifier for this stream
      Gibt zurück:
      the new STREAM_START event.

    • newStreamStartEvent

      public static Event newStreamStartEvent(String stream_id)
      Create a new STREAM_START event. The stream start event can only
      travel downstream synchronized with the buffer flow. It is expected
      to be the first event that is sent for a new stream.

      Source elements, demuxers and other elements that create new streams
      are supposed to send this event as the first event of a new stream. It
      should not be sent after a flushing seek or in similar situations
      and is used to mark the beginning of a new logical stream. Elements
      combining multiple streams must ensure that this event is only forwarded
      downstream once and not for every single input stream.

      The @stream_id should be a unique string that consists of the upstream
      stream-id, / as separator and a unique stream-id for this specific
      stream. A new stream-id should only be created for a stream if the upstream
      stream is split into (potentially) multiple new streams, e.g. in a demuxer,
      but not for every single element in the pipeline.
      gst_pad_create_stream_id() or gst_pad_create_stream_id_printf() can be
      used to create a stream-id. There are no particular semantics for the
      stream-id, though it should be deterministic (to support stream matching)
      and it might be used to order streams (besides any information conveyed by
      stream flags).
      Parameter:
      stream_id - Identifier for this stream
      Gibt zurück:
      the new STREAM_START event.

    • newTagEvent

      public static Event newTagEvent(@Nonnull TagList taglist)
      Generates a metadata tag event from the given @taglist.

      The scope of the taglist specifies if the taglist applies to the
      complete medium or only to this specific stream. As the tag event
      is a sticky event, elements should merge tags received from
      upstream with a given scope with their own tags with the same
      scope and create a new tag event from it.
      Parameter:
      taglist - metadata list. The event will take ownership of the taglist.
      Gibt zurück:
      a new #GstEvent

    • newTocEvent

      public static Event newTocEvent(@Nonnull Toc toc, boolean updated)
      Generate a TOC event from the given @toc. The purpose of the TOC event is to
      inform elements that some kind of the TOC was found.
      Parameter:
      toc - #GstToc structure.
      updated - whether @toc was updated or not.
      Gibt zurück:
      a new #GstEvent.

    • newTocSelectEvent

      public static Event newTocSelectEvent(@Nonnull Str uid)
      Generate a TOC select event with the given @uid. The purpose of the
      TOC select event is to start playback based on the TOC's entry with the
      given @uid.
      Parameter:
      uid - UID in the TOC to start playback from.
      Gibt zurück:
      a new #GstEvent.

    • newTocSelectEvent

      public static Event newTocSelectEvent(String uid)
      Generate a TOC select event with the given @uid. The purpose of the
      TOC select event is to start playback based on the TOC's entry with the
      given @uid.
      Parameter:
      uid - UID in the TOC to start playback from.
      Gibt zurück:
      a new #GstEvent.

    • copySegment

      public void copySegment(@Nonnull Segment segment)
      Parses a segment @event and copies the #GstSegment into the location
      given by @segment.
      Parameter:
      segment - a pointer to a #GstSegment

    • getRunningTimeOffset

      public long getRunningTimeOffset()
      Retrieve the accumulated running time offset of the event.

      Events passing through #GstPads that have a running time
      offset set via gst_pad_set_offset() will get their offset
      adjusted according to the pad's offset.

      If the event contains any information that related to the
      running time, this information will need to be updated
      before usage with this offset.
      Gibt zurück:
      The event's running time offset MT safe.

    • getSeqnum

      public int getSeqnum()
      Retrieve the sequence number of a event.

      Events have ever-incrementing sequence numbers, which may also be set
      explicitly via gst_event_set_seqnum(). Sequence numbers are typically used to
      indicate that a event corresponds to some other set of events or messages,
      for example an EOS event corresponding to a SEEK event. It is considered good
      practice to make this correspondence when possible, though it is not
      required.

      Note that events and messages share the same sequence number incrementor;
      two events or messages will never have the same sequence number unless
      that correspondence was made explicitly.
      Gibt zurück:
      The event's sequence number. MT safe.

    • getStructure

      public Structure getStructure()
      Access the structure of the event.
      Gibt zurück:
      The structure of the event. The structure is still owned by the event, which means that you should not free it and that the pointer becomes invalid when you free the event. MT safe.

    • hasName

      public boolean hasName(@Nonnull Str name)
      Checks if @event has the given @name. This function is usually used to
      check the name of a custom event.
      Parameter:
      name - name to check
      Gibt zurück:
      %TRUE if @name matches the name of the event structure.

    • hasName

      public boolean hasName(String name)
      Checks if @event has the given @name. This function is usually used to
      check the name of a custom event.
      Parameter:
      name - name to check
      Gibt zurück:
      %TRUE if @name matches the name of the event structure.

    • hasNameId

      @Deprecated public boolean hasNameId(int name)
      Veraltet.
      Checks if @event has the given @name. This function is usually used to
      check the name of a custom event.
      Parameter:
      name - name to check as a GQuark
      Gibt zurück:
      %TRUE if @name matches the name of the event structure.

    • parseFlushStop

      public void parseFlushStop(@Nullable Int reset_time)
      Parse the FLUSH_STOP event and retrieve the @reset_time member.
      Parameter:
      reset_time - if time should be reset

    • parseGapFlags

      public void parseGapFlags(@Nullable Int flags)
      Retrieve the gap flags that may have been set on a gap event with
      gst_event_set_gap_flags().
      Parameter:
      flags - a #GstGapFlags or %NULL

    • parseInstantRateChange

      public void parseInstantRateChange(@Nullable Dbl rate_multiplier, @Nullable Int new_flags)
      Extract rate and flags from an instant-rate-change event.
      Parameter:
      rate_multiplier - location in which to store the rate multiplier of the instant-rate-change event, or %NULL
      new_flags - location in which to store the new segment flags of the instant-rate-change event, or %NULL

    • parseStreamFlags

      public void parseStreamFlags(@Nullable Int flags)
      Parameter:
      flags - address of variable where to store the stream flags

    • setGapFlags

      public void setGapFlags(int flags)
      Sets @flags on @event to give additional information about the reason for
      the #GST_EVENT_GAP.
      Parameter:
      flags - a #GstGapFlags

    • setGroupId

      public void setGroupId(int group_id)
      All streams that have the same group id are supposed to be played
      together, i.e. all streams inside a container file should have the
      same group id but different stream ids. The group id should change
      each time the stream is started, resulting in different group ids
      each time a file is played for example.

      Use gst_util_group_id_next() to get a new group id.
      Parameter:
      group_id - the group id to set

    • setRunningTimeOffset

      public void setRunningTimeOffset(long offset)
      Set the running time offset of a event. See
      gst_event_get_running_time_offset() for more information.

      MT safe.
      Parameter:
      offset - A the new running time offset

    • setSeekTrickmodeInterval

      public void setSeekTrickmodeInterval(long interval)
      Sets a trickmode interval on a (writable) seek event. Elements
      that support TRICKMODE_KEY_UNITS seeks SHOULD use this as the minimal
      interval between each frame they may output.
      Parameter:
      interval -

    • setSeqnum

      public void setSeqnum(int seqnum)
      Set the sequence number of a event.

      This function might be called by the creator of a event to indicate that the
      event relates to other events or messages. See gst_event_get_seqnum() for
      more information.

      MT safe.
      Parameter:
      seqnum - A sequence number.

    • setStream

      public void setStream(@Nonnull Stream stream)
      Set the @stream on the stream-start @event
      Parameter:
      stream - the stream object to set

    • setStreamFlags

      public void setStreamFlags(int flags)
      Parameter:
      flags - the stream flags to set

    • writableStructure

      public Structure writableStructure()
      Get a writable version of the structure.
      Gibt zurück:
      The structure of the event. The structure is still owned by the event, which means that you should not free it and that the pointer becomes invalid when you free the event. This function ensures that @event is writable, and if so, will never return %NULL. MT safe.

    • getTypeID

      public static long getTypeID()

    • getParentTypeID

      public static long getParentTypeID()

    • getTypeSize

      public static TypeSystem.TypeSize getTypeSize()

    • getParentTypeSize

      public static TypeSystem.TypeSize getParentTypeSize()

    • getInstanceSize

      public static int getInstanceSize()