kiteplayer-output/io.github.yuroyami.kiteplayer.output/DesktopOutputBackend

DesktopOutputBackend

object DesktopOutputBackend : OutputBackend

The desktop JVM output half: DesktopMonotonicClock paired with DesktopAudioSinkFactory, and null for video. One object lights up macOS, Linux and Windows, because javax.sound.sampled and java.awt are in the JDK on all three.

The pairing is the contract, not a convenience: the sink's deadlines are "now plus the audio still queued" measured on System.nanoTime, the engine anchors its master clock to them, and this object is what stops a caller assembling that sink with a clock on any other base.

Video is null for the reason the SPI KDoc gives for windowing systems: a renderer needs a surface and only the application knows which one. On desktop the Compose window IS the surface, so the application draws frames itself through :kiteplayer-compose-video and attaches nothing here, exactly like the Android and Apple backends.

Properties

audioSink

open override val audioSink: AudioSinkFactory

clock

open override val clock: MonotonicClock

subtitleRasterizer

open override val subtitleRasterizer: SubtitleRasterizer

AWT does the line breaking, bidi and shaping; see the rasteriser's own KDoc.

Functions

audioOutputDevices

fun audioOutputDevices(): List<AudioOutputDevice>

The output devices this JVM can play through: every javax.sound mixer that offers a line for playback. Each AudioOutputDevice.id is the mixer name. Empty on a machine with no audio output, such as most CI runners.

withAudioOutputDevice

fun withAudioOutputDevice(id: String): OutputBackend

This backend, with its audio bound to the device that id names, one of audioOutputDevices.