FrameProcessor.Listener

Kotlin |Java

interface FrameProcessor.Listener

Listener for FrameProcessor events.

Summary

Public functions
`Unit`	`onError(exception: VideoFrameProcessingException!)` Notifies the `Listener` that an exception has occurred during frame processing.
`Unit`	`onFrameProcessed(frame: Frame!, onCompleteFence: SyncFenceWrapper?)` Notifies the `Listener` that a frame has been fully processed.
`Unit`	`onWakeup()` Notifies the `Listener` that the `FrameProcessor` is ready for `queue` to be called again.

Public functions

onError

fun onError(exception: VideoFrameProcessingException!): Unit

Notifies the Listener that an exception has occurred during frame processing.

Parameters
`exception: VideoFrameProcessingException!`	The `VideoFrameProcessingException`.

onFrameProcessed

fun onFrameProcessed(frame: Frame!, onCompleteFence: SyncFenceWrapper?): Unit

Notifies the Listener that a frame has been fully processed.

Parameters
`frame: Frame!`	The queued `Frame`.
`onCompleteFence: SyncFenceWrapper?`	A `SyncFenceWrapper` that will signal when the processor has finished reading from the frame, or `null` if the read was synchronous.

onWakeup

fun onWakeup(): Unit

Notifies the Listener that the FrameProcessor is ready for queue to be called again.

Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Last updated 2026-07-01 UTC.

X
Follow @AndroidDev on X
YouTube
Check out Android Developers on YouTube
LinkedIn
Connect with the Android Developers community on LinkedIn