Added korvi integration sample

sample-video/.gitignore

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+/build

sample-video/build.gradle

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+apply plugin: "korge"
+
+korge {
+	id = "com.soywiz.samplevideo"
+	name = "SampleVideo"
+	orientation = com.soywiz.korge.gradle.Orientation.LANDSCAPE
+	jvmMainClassName = "MainKt"
+}
+
+dependencies {
+	commonMainApi("com.soywiz.korlibs.korvi:korvi:0.0.1")
+}

sample-video/src/commonMain/kotlin/main.kt

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+import com.soywiz.kds.*
+import com.soywiz.klock.*
+import com.soywiz.korau.sound.*
+import com.soywiz.korev.*
+import com.soywiz.korge.*
+import com.soywiz.korge.component.*
+import com.soywiz.korge.input.*
+import com.soywiz.korge.input.mouse
+import com.soywiz.korge.time.*
+import com.soywiz.korge.tween.*
+import com.soywiz.korge.view.*
+import com.soywiz.korim.bitmap.*
+import com.soywiz.korim.color.*
+import com.soywiz.korim.format.*
+import com.soywiz.korio.async.*
+import com.soywiz.korio.file.*
+import com.soywiz.korio.file.std.*
+import com.soywiz.korio.lang.*
+import com.soywiz.korio.stream.*
+import com.soywiz.korma.geom.*
+import com.soywiz.korma.interpolation.*
+import com.soywiz.korvi.*
+import kotlin.coroutines.*
+
+suspend fun main() = Korge(width = 1280, height = 720, bgcolor = Colors["#2b2b2b"]) {
+	val view = korviView(views, resourcesVfs["video.mp4"])
+}
+
+inline fun Container.korviView(views: Views, video: KorviVideo, callback: KorviView.() -> Unit = {}): KorviView = KorviView(views, video).also { addChild(it) }.also { callback(it) }
+suspend inline fun Container.korviView(views: Views, video: VfsFile, callback: KorviView.() -> Unit = {}): KorviView = KorviView(views, video).also { addChild(it) }.also { callback(it) }
+class KorviView(val views: Views, val video: KorviVideo, val stream: AsyncStream? = null) : Container(), AsyncCloseable, BaseKorviSeekable by video {
+	val onCompleted = Signal<Unit>()
+	var autoLoop = true
+
+	companion object {
+		operator suspend fun invoke(views: Views, file: VfsFile): KorviView {
+			val stream = file.open()
+			return KorviView(views, KorviVideo(stream), stream)
+		}
+	}
+
+	var running = true
+	val img = image(Bitmaps.transparent)
+	val audio = nativeSoundProvider.createAudioStream()
+	var elapsedTime: TimeSpan = 0.seconds
+
+	private var videoLastFrame: KorviVideoFrame? = null
+	private val videoJob = views.launchImmediately {
+		while (true) {
+			delayFrame()
+			elapsedTime += 16.milliseconds
+			if (videoLastFrame == null) {
+				videoLastFrame = video.video.first().readFrame()
+				if (videoLastFrame == null) {
+					completed()
+				}
+			}
+			if (videoLastFrame != null && elapsedTime >= videoLastFrame!!.position) {
+				img.bitmap = videoLastFrame!!.data.slice()
+				videoLastFrame = null
+			}
+		}
+	}
+	private val audioJob = views.launchImmediately {
+		while (true) {
+			delayFrame()
+			for (n in 0 until 3) {
+				val frame = video.audio.first().readFrame()
+				if (frame != null) {
+					audio.add(frame!!.data)
+				}
+			}
+		}
+	}
+
+	private suspend fun completed() {
+		running = false
+		onCompleted(Unit)
+		if (autoLoop) {
+			seek(0L)
+		}
+	}
+
+	override suspend fun seek(time: TimeSpan) {
+		video.seek(time)
+		elapsedTime = time
+		running = true
+	}
+
+	override suspend fun seek(frame: Long) {
+		video.seek(frame)
+		running = true
+		//elapsedTime = null
+	}
+
+	// @TODO: Autoclose
+	override suspend fun close() {
+		audio.stop()
+		video.close()
+		stream?.close()
+		videoJob.cancel()
+		audioJob.cancel()
+	}
+}