Add a new Compose way to integrate with vlcj

experimental/components/VideoPlayer/demo/src/jvmMain/kotlin/org/jetbrains/compose/videoplayer/demo/Main.kt

@@ -1,22 +1,56 @@
 package org.jetbrains.compose.videoplayer.demo
 
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
 import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import androidx.compose.ui.window.WindowState
 import androidx.compose.ui.window.singleWindowApplication
-import org.jetbrains.compose.videoplayer.VideoPlayer
+import org.jetbrains.compose.videoplayer.VideoPlayerCompose
+import org.jetbrains.compose.videoplayer.VideoPlayerSwing
 
 fun main() {
     singleWindowApplication(
         title = "Video Player",
         state = WindowState(width = 800.dp, height = 800.dp)
     ) {
         MaterialTheme {
-            VideoPlayer(
-                url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4",
-                width = 640,
-                height = 480
-            )
+            Column(
+                modifier = Modifier.fillMaxSize(),
+                verticalArrangement = Arrangement.Center,
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Spacer(modifier = Modifier.height(8.dp))
+                Text(
+                    text = "Swing Video Player",
+                    fontSize = 18.sp,
+                    color = Color.Black
+                )
+                Spacer(modifier = Modifier.height(8.dp))
+                VideoPlayerSwing(
+                    url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4",
+                    width = 480,
+                    height = 360
+                )
+                Spacer(modifier = Modifier.height(8.dp))
+                Box(modifier = Modifier.background(Color.Black), contentAlignment = Alignment.Center) {
+                    VideoPlayerCompose(
+                        url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4",
+                        width = 480,
+                        height = 360
+                    )
+                    Text(
+                        text = "Compose Video Player",
+                        fontSize = 18.sp,
+                        color = Color.White
+                    )
+                }
+            }
         }
     }
 }

experimental/components/VideoPlayer/library/src/commonMain/kotlin/org/jetbrains/compose/videoplayer/VideoPlayer.kt

@@ -3,8 +3,15 @@ package org.jetbrains.compose.videoplayer
 import androidx.compose.runtime.Composable
 
 @Composable
-fun VideoPlayer(url: String, width: Int, height: Int) {
-    VideoPlayerImpl(url, width, height)
+fun VideoPlayerSwing(url: String, width: Int, height: Int) {
+    VideoPlayerSwingImpl(url, width, height)
 }
 
-internal expect fun VideoPlayerImpl(url: String, width: Int, height: Int)
+@Composable
+fun VideoPlayerCompose(url: String, width: Int, height: Int) {
+    VideoPlayerComposeImpl(url, width, height)
+}
+
+internal expect fun VideoPlayerSwingImpl(url: String, width: Int, height: Int)
+
+internal expect fun VideoPlayerComposeImpl(url: String, width: Int, height: Int)

experimental/components/VideoPlayer/library/src/desktopMain/kotlin/org/jetbrains/compose/videoplayer/DesktopVideoPlayer.kt

@@ -1,55 +1,123 @@
 package org.jetbrains.compose.videoplayer
 
-import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.width
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.SideEffect
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.awt.SwingPanel
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.asComposeImageBitmap
+import androidx.compose.ui.unit.dp
+import org.jetbrains.skia.Bitmap
+import org.jetbrains.skia.ColorAlphaType
+import org.jetbrains.skia.ImageInfo
 import uk.co.caprica.vlcj.factory.discovery.NativeDiscovery
 import uk.co.caprica.vlcj.player.base.MediaPlayer
 import uk.co.caprica.vlcj.player.component.CallbackMediaPlayerComponent
 import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent
+import uk.co.caprica.vlcj.player.embedded.EmbeddedMediaPlayer
+import uk.co.caprica.vlcj.player.embedded.videosurface.CallbackVideoSurface
+import uk.co.caprica.vlcj.player.embedded.videosurface.VideoSurfaceAdapters
+import uk.co.caprica.vlcj.player.embedded.videosurface.callback.BufferFormat
+import uk.co.caprica.vlcj.player.embedded.videosurface.callback.BufferFormatCallback
+import uk.co.caprica.vlcj.player.embedded.videosurface.callback.RenderCallback
+import uk.co.caprica.vlcj.player.embedded.videosurface.callback.format.RV32BufferFormat
+import java.nio.ByteBuffer
 import java.util.*
+import javax.swing.JComponent
+
 
 @Composable
-internal actual fun VideoPlayerImpl(url: String, width: Int, height: Int) {
+internal actual fun VideoPlayerSwingImpl(url: String, width: Int, height: Int) {
     NativeDiscovery().discover()
-    val mediaPlayerComponent = remember {
-        // see https://github.com/caprica/vlcj/issues/887#issuecomment-503288294 for why we're using CallbackMediaPlayerComponent for macOS.
-        if (isMacOS()) {
-            CallbackMediaPlayerComponent()
-        } else {
-            EmbeddedMediaPlayerComponent()
-        }
-    }
-    SideEffect {
+    val mediaPlayerComponent = rememberMediaPlayerComponent()
+    DisposableEffect(Unit) {
         mediaPlayerComponent.mediaPlayer().media().play(url)
+        onDispose {
+            mediaPlayerComponent.mediaPlayer().release()
+        }
     }
+    return SwingPanel(background = Color.Transparent, modifier = Modifier.width(width.dp).height(height.dp), factory = {
+        mediaPlayerComponent
+    })
+}
 
+@Composable
+internal actual fun VideoPlayerComposeImpl(url: String, width: Int, height: Int) {
+    NativeDiscovery().discover()
+    var imageBitmap by remember { mutableStateOf(ImageBitmap(width, height)) }
+    Image(modifier = Modifier.width(width.dp).height(height.dp), bitmap = imageBitmap, contentDescription = "Video")
+    val mediaPlayerComponent = rememberMediaPlayerComponent()
     DisposableEffect(Unit) {
+        var byteArray: ByteArray? = null
+        var imageInfo: ImageInfo? = null
+        val mediaPlayer = mediaPlayerComponent.mediaPlayer()
+        val callbackVideoSurface = CallbackVideoSurface(
+            object : BufferFormatCallback {
+
+                override fun getBufferFormat(sourceWidth: Int, sourceHeight: Int): BufferFormat {
+                    imageInfo = ImageInfo.makeN32(sourceWidth, sourceHeight, ColorAlphaType.OPAQUE)
+                    return RV32BufferFormat(sourceWidth, sourceHeight)
+                }
+
+                override fun allocatedBuffers(buffers: Array<out ByteBuffer>) {
+                    byteArray = ByteArray(buffers[0].limit())
+                }
+            },
+            object : RenderCallback {
+
+                override fun display(
+                    mediaPlayer: MediaPlayer,
+                    nativeBuffers: Array<out ByteBuffer>,
+                    bufferFormat: BufferFormat
+                ) {
+                    imageInfo?.let {
+                        val byteBuffer = nativeBuffers[0]
+                        byteBuffer.get(byteArray)
+                        byteBuffer.rewind()
+                        imageBitmap = Bitmap().apply {
+                            allocPixels(it)
+                            installPixels(byteArray)
+                        }.asComposeImageBitmap()
+                    }
+                }
+            },
+            true,
+            VideoSurfaceAdapters.getVideoSurfaceAdapter(),
+        )
+        mediaPlayer.videoSurface().set(callbackVideoSurface)
+        mediaPlayer.media().play(url)
         onDispose {
-            mediaPlayerComponent.mediaPlayer().release()
+            mediaPlayer.release()
         }
     }
+}
 
-    return SwingPanel(
-        background = Color.Transparent,
-        modifier = Modifier.fillMaxSize(),
-        factory = {
-            mediaPlayerComponent
+@Composable
+fun rememberMediaPlayerComponent(): JComponent {
+    return remember {
+        // see https://github.com/caprica/vlcj/issues/887#issuecomment-503288294 for why we're using CallbackMediaPlayerComponent for macOS.
+        if (isMacOS()) {
+            CallbackMediaPlayerComponent()
+        } else {
+            EmbeddedMediaPlayerComponent()
         }
-    )
+    }
 }
 
 /**
  * To return mediaPlayer from player components.
  * The method names are same, but they don't share the same parent/interface.
  * That's why need this method.
  */
-private fun Any.mediaPlayer(): MediaPlayer {
+private fun Any.mediaPlayer(): EmbeddedMediaPlayer {
     return when (this) {
         is CallbackMediaPlayerComponent -> mediaPlayer()
         is EmbeddedMediaPlayerComponent -> mediaPlayer()