Media.Streaming.GStreamer.Core.Event

There are a number of predefined events and functions returning events. To send an event an application will usually use elementSendEvent, and elements will use padSendEvent or padPushEvent.

Types

data Event

Instances

EventClass Event

MiniObjectClass Event

class MiniObjectClass o => EventClass o

Instances

EventClass Event

data EventType

The event types that may occur in a pipeline.

Constructors

EventUnknown	an unknown event
EventFlushStart	start a flush operation
EventFlushStop	stop a flush operation
EventEOS	end of stream
EventNewSegment	a new segment follows in the dataflow
EventTag	a new set of metadata tags has been found
EventBufferSize	notification of buffering requirements
EventQOS	quality of service notification
EventSeek	a request for a new playback position and rate
EventNavigation	notification of user request
EventLatency	notification of latency adjustment
EventCustomUpstream	custom upstream event
EventCustomDownstream	custom downstream event
EventCustomDownstreamOOB	custom downstream out-of-band event
EventCustomBoth	custom bidirectional event
EventCustomBothOOB	custom bidirectional out-of-band event

Instances

Bounded EventType

Enum EventType

Eq EventType

Show EventType

data SeekFlags

Constructors

SeekFlagNone
SeekFlagFlush
SeekFlagAccurate
SeekFlagKeyUnit
SeekFlagSegment

Instances

Bounded SeekFlags

Enum SeekFlags

Eq SeekFlags

Flags SeekFlags

Show SeekFlags

data SeekType

Constructors

SeekTypeNone
SeekTypeCur
SeekTypeSet
SeekTypeEnd

Instances

Enum SeekType

Eq SeekType

Show SeekType

Event Operations

eventType :: EventClass event => event -> EventType

eventNewCustom :: EventType -> Structure -> IO Event

eventNewEOS :: IO Event

eventNewFlushStart :: IO Event

eventNewFlushStop :: IO Event

eventNewLatency :: ClockTime -> IO Event

eventNewNavigation :: Structure -> IO Event

eventNewNewSegment :: Bool -> Double -> Format -> Int64 -> Int64 -> Int64 -> IO Event

eventNewNewSegmentFull :: Bool -> Double -> Double -> Format -> Int64 -> Int64 -> Int64 -> IO Event

eventNewQOS :: Double -> ClockTimeDiff -> ClockTime -> IO Event

eventNewSeek :: Double -> Format -> [SeekFlags] -> SeekType -> Int64 -> SeekType -> Int64 -> IO Event

eventNewTag :: TagList -> IO Event

eventParseBufferSize :: EventClass event => event -> Maybe (Format, Int64, Int64, Bool)

eventParseLatency :: EventClass event => event -> Maybe ClockTime

eventParseNewSegment :: EventClass event => event -> Maybe (Bool, Double, Format, Int64, Int64, Int64)

eventParseNewSegmentFull :: EventClass event => event -> Maybe (Bool, Double, Double, Format, Int64, Int64, Int64)

eventParseQOS :: EventClass event => event -> Maybe (Double, ClockTimeDiff, ClockTime)

eventParseSeek :: EventClass event => event -> Maybe (Double, Format, [SeekFlags], SeekType, Int64, SeekType, Int64)

eventParseTag :: EventClass event => event -> Maybe TagList

eventTypeGetName :: EventType -> String

eventTypeGetFlags :: EventType -> [EventTypeFlags]

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