VideoFilter

Inherited Members

From BaseTransform

getAllocator

void getAllocator(gst.allocator.Allocator allocator, gst.allocation_params.AllocationParams params)

Lets #GstBaseTransform sub-classes know the memory allocator used by the base class and its params.

getBufferPool

gst.buffer_pool.BufferPool getBufferPool()

isInPlace

bool isInPlace()

See if trans is configured as a in_place transform.

isPassthrough

bool isPassthrough()

See if trans is configured as a passthrough transform.

isQosEnabled

bool isQosEnabled()

Queries if the transform will handle QoS.

reconfigure

bool reconfigure()

Negotiates src pad caps with downstream elements if the source pad is marked as needing reconfiguring. Unmarks GST_PAD_FLAG_NEED_RECONFIGURE in any case. But marks it again if negotiation fails.

reconfigureSink

void reconfigureSink()

Instructs trans to request renegotiation upstream. This function is typically called after properties on the transform were set that influence the input format.

reconfigureSrc

void reconfigureSrc()

Instructs trans to renegotiate a new downstream transform on the next buffer. This function is typically called after properties on the transform were set that influence the output format.

setGapAware

void setGapAware(bool gapAware)

If gap_aware is false (the default), output buffers will have the gst.types.BufferFlags.Gap flag unset.

setInPlace

void setInPlace(bool inPlace)

Determines whether a non-writable buffer will be copied before passing to the transform_ip function.

setPassthrough

void setPassthrough(bool passthrough)

Set passthrough mode for this filter by default. This is mostly useful for filters that do not care about negotiation.

setPreferPassthrough

void setPreferPassthrough(bool preferPassthrough)

If prefer_passthrough is true (the default), trans will check and prefer passthrough caps from the list of caps returned by the transform_caps vmethod.

setQosEnabled

void setQosEnabled(bool enabled)

Enable or disable QoS handling in the transform.

updateQos

void updateQos(double proportion, gst.types.ClockTimeDiff diff, gst.types.ClockTime timestamp)

Set the QoS parameters in the transform. This function is called internally when a QOS event is received but subclasses can provide custom information when needed.

updateSrcCaps

bool updateSrcCaps(gst.caps.Caps updatedCaps)

Updates the srcpad caps and sends the caps downstream. This function can be used by subclasses when they have already negotiated their caps but found a change in them (or computed new information). This way, they can notify downstream about that change without losing any buffer.

• VideoFilter