GI.GstVideo.Objects.VideoAggregator

VideoAggregator can accept AYUV, ARGB and BGRA video streams. For each of the requested sink pads it will compare the incoming geometry and framerate to define the output parameters. Indeed output video frames will have the geometry of the biggest incoming video stream and the framerate of the fastest incoming one.

VideoAggregator will do colorspace conversion.

Zorder for each input stream can be configured on the VideoAggregatorPad.

Since: 1.16

Exported types

newtype VideoAggregator

Memory-managed wrapper type.

Constructors

VideoAggregator (ManagedPtr VideoAggregator)

Instances

Eq VideoAggregator

Defined in GI.GstVideo.Objects.VideoAggregator

Methods

(==) :: VideoAggregator -> VideoAggregator -> Bool

(/=) :: VideoAggregator -> VideoAggregator -> Bool

GObject VideoAggregator

Defined in GI.GstVideo.Objects.VideoAggregator

ManagedPtrNewtype VideoAggregator

Defined in GI.GstVideo.Objects.VideoAggregator

Methods

toManagedPtr :: VideoAggregator -> ManagedPtr VideoAggregator

TypedObject VideoAggregator

Defined in GI.GstVideo.Objects.VideoAggregator

Methods

glibType :: IO GType

HasParentTypes VideoAggregator

Defined in GI.GstVideo.Objects.VideoAggregator

IsGValue (Maybe VideoAggregator)

Convert VideoAggregator to and from GValue. See toGValue and fromGValue.

Defined in GI.GstVideo.Objects.VideoAggregator

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe VideoAggregator -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe VideoAggregator)

type ParentTypes VideoAggregator

Defined in GI.GstVideo.Objects.VideoAggregator

type ParentTypes VideoAggregator = '[Aggregator, Element, Object, Object]

class (GObject o, IsDescendantOf VideoAggregator o) => IsVideoAggregator o

Type class for types which can be safely cast to VideoAggregator, for instance with toVideoAggregator.

Instances

(GObject o, IsDescendantOf VideoAggregator o) => IsVideoAggregator o

Defined in GI.GstVideo.Objects.VideoAggregator

toVideoAggregator :: (MonadIO m, IsVideoAggregator o) => o -> m VideoAggregator

Cast to VideoAggregator, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

abortState, addControlBinding, addPad, addPropertyDeepNotifyWatch, addPropertyNotifyWatch, bindProperty, bindPropertyFull, callAsync, changeState, continueState, createAllPads, defaultError, finishBuffer, finishBufferList, forceFloating, foreachPad, foreachSinkPad, foreachSrcPad, freezeNotify, getv, hasActiveControlBindings, hasAncestor, hasAsAncestor, hasAsParent, isFloating, isLockedState, iteratePads, iterateSinkPads, iterateSrcPads, link, linkFiltered, linkPads, linkPadsFiltered, linkPadsFull, lostState, messageFull, messageFullWithDetails, negotiate, noMorePads, notify, notifyByPspec, peekNextSample, postMessage, provideClock, query, queryConvert, queryDuration, queryPosition, ref, refSink, releaseRequestPad, removeControlBinding, removePad, removePropertyNotifyWatch, requestPad, requestPadSimple, runDispose, seek, seekSimple, selectedSamples, sendEvent, simpleGetNextTime, stealData, stealQdata, suggestNextSync, syncStateWithParent, syncValues, thawNotify, unlink, unlinkPads, unparent, unref, updateSegment, watchClosure.

Getters

getAllocator, getBaseTime, getBufferPool, getBus, getClock, getCompatiblePad, getCompatiblePadTemplate, getContext, getContextUnlocked, getContexts, getControlBinding, getControlRate, getCurrentClockTime, getCurrentRunningTime, getData, getExecutionTaskPool, getFactory, getGValueArray, getLatency, getMetadata, getName, getPadTemplate, getPadTemplateList, getParent, getPathString, getProperty, getQdata, getRequestPad, getStartTime, getState, getStaticPad, getValue.

Setters

setBaseTime, setBus, setClock, setContext, setControlBindingDisabled, setControlBindingsDisabled, setControlRate, setData, setDataFull, setLatency, setLockedState, setName, setParent, setProperty, setSrcCaps, setStartTime, setState.

getExecutionTaskPool

videoAggregatorGetExecutionTaskPool

Arguments

:: (HasCallStack, MonadIO m, IsVideoAggregator a)

=> a

vagg: the VideoAggregator

-> m TaskPool

Returns: the TaskPool that can be used by subclasses for performing concurrent operations

The returned TaskPool is used internally for performing parallel video format conversions/scaling/etc during the VideoAggregatorPadClass::prepare_frame_start() process. Subclasses can add their own operation to perform using the returned TaskPool during VideoAggregatorClass::aggregate_frames().

Since: 1.20