HardwareBufferFrame
@ExperimentalApi
class HardwareBufferFrame
A Frame implementation backed by a HardwareBuffer.
Frames of this type may be mappable to memory accessible by various hardware systems, such as GPU, media codecs, NPU, or other auxiliary processing units.
On API levels before 26, where HardwareBuffer is not defined, internalFrame will be set for use within this package. internalFrame is not intended for use by third party apps.
Summary
Nested types |
|---|
|
A builder for |
Constants |
|
|---|---|
const HardwareBufferFrame! |
Public functions |
|
|---|---|
HardwareBufferFrame.Builder! |
Returns a |
Unit |
release()Releases the frame and its underlying resources. |
Public properties |
|
|---|---|
SyncFence? |
An acquire |
Format! |
The format of the frame. |
HardwareBuffer? |
Returns the |
Any? |
An optional internal frame type that is used when |
Frame.Metadata! |
|
Long |
The presentation time of the frame, in microseconds. |
Long |
The release time of the frame, in nanoseconds. |
Constants
Public functions
buildUpon
fun buildUpon(): HardwareBufferFrame.Builder!
Returns a Builder initialized with the values of this instance.
Public properties
acquireFence
val acquireFence: SyncFence?
An acquire SyncFence for the HardwareBuffer.
Callers should ensure that the acquire fence has signaled before accessing HardwareBuffer.
If the acquire fence is null, it's safe to access HardwareBuffer.
hardwareBuffer
val hardwareBuffer: HardwareBuffer?
Returns the HardwareBuffer which holds the frame data, or null if hardware buffers are not supported on the current API level.
internalFrame
val internalFrame: Any?
An optional internal frame type that is used when hardwareBuffer is not supported.
presentationTimeUs
val presentationTimeUs: Long
The presentation time of the frame, in microseconds.