MessageType (GStreamer 1.x Java Core 1.4.0 API)

java.lang.Object
- java.lang.Enum<MessageType>
- - org.freedesktop.gstreamer.message.MessageType

All Implemented Interfaces:

Serializable, Comparable<MessageType>, NativeEnum<MessageType>
```
public enum MessageType
extends Enum<MessageType>
implements NativeEnum<MessageType>
```
The different message types that are available.
See upstream documentation at https://gstreamer.freedesktop.org/data/doc/gstreamer/stable/gstreamer/html/GstMessage.html#GstMessageType

Enum Constant Summary

Enum Constants
Enum Constant and Description
`ANY` mask for all of the above messages.
`APPLICATION` Message posted by the application, possibly via an application-specific element.
`ASYNC_DONE` Posted by elements when they complete an ASYNC state change.
`ASYNC_START` Posted by elements when they start an ASYNC state change.
`BUFFERING` The pipeline is buffering.
`CLOCK_LOST` The current clock as selected by the pipeline became unusable.
`CLOCK_PROVIDE` an element notifies its capability of providing a clock.
`DEVICE_ADDED` Message indicating a #GstDevice was added to a #GstDeviceProvider (Since 1.4)
`DEVICE_CHANGED` Message indicating a `Device` was changed by a `DeviceProvider` (Since 1.16)
`DEVICE_REMOVED` Message indicating a #GstDevice was removed from a #GstDeviceProvider (Since 1.4)
`DURATION_CHANGED` The duration of a pipeline changed.
`ELEMENT` Element specific message, see the specific element's documentation
`EOS` end-of-stream reached in a pipeline.
`ERROR` An error occurred.
`EXTENDED` Message is an extended message type (see below).
`HAVE_CONTEXT` Message indicating that an element created a context (Since 1.2)
`INFO` An info message occurred.
`INSTANT_RATE_REQUEST` Message sent by elements to request the running time from the pipeline when an instant rate change should be applied (which may be in the past when the answer arrives).
`LATENCY` Posted by elements when their latency changes.
`NEED_CONTEXT` Message indicating that an element wants a specific context (Since 1.2)
`NEW_CLOCK` A new clock was selected in the pipeline.
`PROGRESS` A progress message.
`PROPERTY_NOTIFY` Message indicating a `GObject` property has changed (Since 1.10)
`QOS` A buffer was dropped or an element changed its processing strategy for Quality of Service reasons.
`REDIRECT` Message indicating to request the application to try to play the given URL(s).
`REQUEST_STATE` Posted by elements when they want the pipeline to change state.
`RESET_TIME` Message to request resetting the pipeline's running time from the pipeline.
`SEGMENT_DONE` Pipeline completed playback of a segment.
`SEGMENT_START` Pipeline started playback of a segment.
`STATE_CHANGED` A state change happened
`STATE_DIRTY` an element changed state in a streaming thread.
`STEP_DONE` a framestep finished.
`STEP_START` A stepping operation was started.
`STREAM_COLLECTION` Message indicating a new `GstStreamCollection` is available (Since 1.10)
`STREAM_START` Message indicating start of a new stream.
`STREAM_STATUS` Status about a stream, emitted when it starts, stops, errors, etc..
`STREAMS_SELECTED` Message indicating the active selection of `GstStreams` has changed (Since 1.10)
`STRUCTURE_CHANGE` The structure of the pipeline changed.
`TAG` A tag was found.
`TOC` A new table of contents (TOC) was found or previously found TOC was updated.
`UNKNOWN` An undefined message
`WARNING` A warning occurred.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`intValue()` Gets the native integer value for this type.
`static MessageType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static MessageType[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.freedesktop.gstreamer.glib.NativeEnum
fromInt, fromInt

- Enum Constant Detail
  - UNKNOWN
```
public static final MessageType UNKNOWN
```
    An undefined message
  - EOS
```
public static final MessageType EOS
```
    end-of-stream reached in a pipeline. The application will only receive this message in the PLAYING state and every time it sets a pipeline to PLAYING that is in the EOS state. The application can perform a flushing seek in the pipeline, which will undo the EOS state again.
  - ERROR
```
public static final MessageType ERROR
```
    An error occurred. When the application receives an error message it should stop playback of the pipeline and not assume that more data will be played.
  - WARNING
```
public static final MessageType WARNING
```
    A warning occurred.
  - INFO
```
public static final MessageType INFO
```
    An info message occurred.
  - TAG
```
public static final MessageType TAG
```
    A tag was found.
  - BUFFERING
```
public static final MessageType BUFFERING
```
    The pipeline is buffering. When the application receives a buffering message in the PLAYING state for a non-live pipeline it must PAUSE the pipeline until the buffering completes, when the percentage field in the message is 100%. For live pipelines, no action must be performed and the buffering percentage can be used to inform the user about the progress.
  - STATE_CHANGED
```
public static final MessageType STATE_CHANGED
```
    A state change happened
  - STATE_DIRTY
```
public static final MessageType STATE_DIRTY
```
    an element changed state in a streaming thread. This message is deprecated.
  - STEP_DONE
```
public static final MessageType STEP_DONE
```
    a framestep finished. This message is not yet implemented.
  - CLOCK_PROVIDE
```
public static final MessageType CLOCK_PROVIDE
```
    an element notifies its capability of providing a clock. This message is used internally and never forwarded to the application.
  - CLOCK_LOST
```
public static final MessageType CLOCK_LOST
```
    The current clock as selected by the pipeline became unusable. The pipeline will select a new clock on the next PLAYING state change.
  - NEW_CLOCK
```
public static final MessageType NEW_CLOCK
```
    A new clock was selected in the pipeline.
  - STRUCTURE_CHANGE
```
public static final MessageType STRUCTURE_CHANGE
```
    The structure of the pipeline changed. Not implemented yet.
  - STREAM_STATUS
```
public static final MessageType STREAM_STATUS
```
    Status about a stream, emitted when it starts, stops, errors, etc.. Not implemented yet.
  - APPLICATION
```
public static final MessageType APPLICATION
```
    Message posted by the application, possibly via an application-specific element.
  - ELEMENT
```
public static final MessageType ELEMENT
```
    Element specific message, see the specific element's documentation
  - SEGMENT_START
```
public static final MessageType SEGMENT_START
```
    Pipeline started playback of a segment. This message is used internally and never forwarded to the application.
  - SEGMENT_DONE
```
public static final MessageType SEGMENT_DONE
```
    Pipeline completed playback of a segment. This message is forwarded to the application after all elements that posted SEGMENT_START have posted a SEGMENT_DONE message.
  - DURATION_CHANGED
```
public static final MessageType DURATION_CHANGED
```
    The duration of a pipeline changed. The application can get the new duration with a duration query.
  - LATENCY
```
public static final MessageType LATENCY
```
    Posted by elements when their latency changes. The pipeline will calculate and distribute a new latency. Since: 0.10.12
  - ASYNC_START
```
public static final MessageType ASYNC_START
```
    Posted by elements when they start an ASYNC state change. This message is not forwarded to the application but is used internally. Since: 0.10.13.
  - ASYNC_DONE
```
public static final MessageType ASYNC_DONE
```
    Posted by elements when they complete an ASYNC state change. The application will only receive this message from the toplevel pipeline. Since: 0.10.13
  - REQUEST_STATE
```
public static final MessageType REQUEST_STATE
```
    Posted by elements when they want the pipeline to change state. This message is a suggestion to the application which can decide to perform the state change on (part of) the pipeline. Since: 0.10.23.
  - STEP_START
```
public static final MessageType STEP_START
```
    A stepping operation was started.
  - QOS
```
public static final MessageType QOS
```
    A buffer was dropped or an element changed its processing strategy for Quality of Service reasons.
  - PROGRESS
```
public static final MessageType PROGRESS
```
    A progress message. Since: 0.10.33
  - TOC
```
public static final MessageType TOC
```
    A new table of contents (TOC) was found or previously found TOC was updated. Since: 0.10.37
  - RESET_TIME
```
public static final MessageType RESET_TIME
```
    Message to request resetting the pipeline's running time from the pipeline. This is an internal message which applications will likely never receive.
  - STREAM_START
```
public static final MessageType STREAM_START
```
    Message indicating start of a new stream. Useful e.g. when using playbin in gapless playback mode, to get notified when the next title actually starts playing (which will be some time after the URI for the next title has been set).
  - NEED_CONTEXT
```
public static final MessageType NEED_CONTEXT
```
    Message indicating that an element wants a specific context (Since 1.2)
  - HAVE_CONTEXT
```
public static final MessageType HAVE_CONTEXT
```
    Message indicating that an element created a context (Since 1.2)
  - EXTENDED
```
public static final MessageType EXTENDED
```
    Message is an extended message type (see below). These extended message IDs can't be used directly with mask-based API like gst_bus_poll() or gst_bus_timed_pop_filtered(), but you can still filter for GST_MESSAGE_EXTENDED and then check the result for the specific type. (Since 1.4)
  - DEVICE_ADDED
```
public static final MessageType DEVICE_ADDED
```
    Message indicating a #GstDevice was added to a #GstDeviceProvider (Since 1.4)
  - DEVICE_REMOVED
```
public static final MessageType DEVICE_REMOVED
```
    Message indicating a #GstDevice was removed from a #GstDeviceProvider (Since 1.4)
  - PROPERTY_NOTIFY
```
@Gst.Since(minor=10)
public static final MessageType PROPERTY_NOTIFY
```
    Message indicating a GObject property has changed (Since 1.10)
  - STREAM_COLLECTION
```
@Gst.Since(minor=10)
public static final MessageType STREAM_COLLECTION
```
    Message indicating a new GstStreamCollection is available (Since 1.10)
  - STREAMS_SELECTED
```
@Gst.Since(minor=10)
public static final MessageType STREAMS_SELECTED
```
    Message indicating the active selection of GstStreams has changed (Since 1.10)
  - REDIRECT
```
@Gst.Since(minor=10)
public static final MessageType REDIRECT
```
    Message indicating to request the application to try to play the given URL(s). Useful if for example a HTTP 302/303 response is received with a non-HTTP URL inside. (Since 1.10)
  - DEVICE_CHANGED
```
@Gst.Since(minor=16)
public static final MessageType DEVICE_CHANGED
```
    Message indicating a Device was changed by a DeviceProvider (Since 1.16)
  - INSTANT_RATE_REQUEST
```
@Gst.Since(minor=18)
public static final MessageType INSTANT_RATE_REQUEST
```
    Message sent by elements to request the running time from the pipeline when an instant rate change should be applied (which may be in the past when the answer arrives). (Since 1.18)
  - ANY
```
public static final MessageType ANY
```
    mask for all of the above messages.
- Method Detail
  - values
```
public static MessageType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (MessageType c : MessageType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static MessageType valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - intValue
```
public int intValue()
```
    Gets the native integer value for this type.
    
    Specified by:
    
    intValue in interface NativeEnum<MessageType>
    
    Returns:
    
    the native gstreamer value.

Enum MessageType

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Methods inherited from interface org.freedesktop.gstreamer.glib.NativeEnum

Enum Constant Detail

UNKNOWN

EOS

ERROR

WARNING

INFO

TAG

BUFFERING

STATE_CHANGED

STATE_DIRTY

STEP_DONE

CLOCK_PROVIDE

CLOCK_LOST

NEW_CLOCK

STRUCTURE_CHANGE

STREAM_STATUS

APPLICATION

ELEMENT

SEGMENT_START

SEGMENT_DONE

DURATION_CHANGED

LATENCY

ASYNC_START

ASYNC_DONE

REQUEST_STATE

STEP_START

QOS

PROGRESS

TOC

RESET_TIME

STREAM_START

NEED_CONTEXT

HAVE_CONTEXT

EXTENDED

DEVICE_ADDED

DEVICE_REMOVED

PROPERTY_NOTIFY

STREAM_COLLECTION

STREAMS_SELECTED

REDIRECT

DEVICE_CHANGED

INSTANT_RATE_REQUEST

ANY

Method Detail

values

valueOf

intValue