fix content ratio using compose

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,41 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>

new-player/src/main/java/net/newpipe/newplayer/model/VideoPlayerViewModel.kt

@@ -24,6 +24,7 @@ import android.app.Application
 import android.os.Build
 import android.os.Bundle
 import android.os.Parcelable
+import android.util.Log
 import androidx.annotation.RequiresApi
 import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.SavedStateHandle
@@ -40,16 +41,25 @@ import net.newpipe.newplayer.NewPlayer
 
 val VIDEOPLAYER_UI_STATE = "video_player_ui_state"
 
+private const val TAG = "VideoPlayerViewModel"
+
 @Parcelize
 data class VideoPlayerUIState(
     val playing: Boolean,
     var fullscreen: Boolean,
     var uiVissible: Boolean,
-    var contentRatio: Float
+    var contentRatio: Float,
+    var minContentRatio: Float,
+    var maxContentRatio: Float
 ) : Parcelable {
     companion object {
         val DEFAULT = VideoPlayerUIState(
-            playing = false, fullscreen = false, uiVissible = false, 0F
+            playing = false,
+            fullscreen = false,
+            uiVissible = false,
+            contentRatio = 0F,
+            minContentRatio = 4F / 3F,
+            maxContentRatio = 16F / 9F
         )
     }
 }
@@ -59,6 +69,8 @@ interface VideoPlayerViewModel {
     val player: Player?
     val uiState: StateFlow<VideoPlayerUIState>
     var listener: Listener?
+    var minContentRatio: Float
+    var maxContentRatio: Float
 
     fun initUIState(instanceState: Bundle)
     fun play()
@@ -78,7 +90,6 @@ interface VideoPlayerViewModel {
     }
 }
 
-
 @HiltViewModel
 class VideoPlayerViewModelImpl @Inject constructor(
     private val savedStateHandle: SavedStateHandle,
@@ -102,8 +113,33 @@ class VideoPlayerViewModelImpl @Inject constructor(
     override val player: Player?
         get() = newPlayer?.player
 
+    override var minContentRatio: Float
+        set(value) {
+            if (value <= 0 || mutableUiState.value.maxContentRatio < value)
+                Log.e(
+                    TAG,
+                    "Ignoring maxContentRatio: It must not be 0 or less and it may not be bigger then mmaxContentRatio. It was Set to: $value"
+                )
+            else
+                mutableUiState.update { it.copy(minContentRatio = value) }
+        }
+        get() = mutableUiState.value.minContentRatio
+
+    override var maxContentRatio: Float
+        get() = mutableUiState.value.maxContentRatio
+        set(value) {
+            if (value <= 0 || value < mutableUiState.value.minContentRatio)
+                Log.e(
+                    TAG,
+                    "Ignoring maxContentRatio: It must not be 0 or less and it may not be smaller then minContentRatio. It was Set to: $value"
+                )
+            else
+                mutableUiState.update { it.copy(maxContentRatio = value) }
+        }
+
     private fun installExoPlayer() {
         player?.let { player ->
+            Log.i(TAG, "Install player")
             player.addListener(object : Player.Listener {
                 override fun onIsPlayingChanged(isPlaying: Boolean) {
                     super.onIsPlayingChanged(isPlaying)
@@ -143,17 +179,17 @@ class VideoPlayerViewModelImpl @Inject constructor(
 
     override fun onCleared() {
         super.onCleared()
-        println("gurken viewmodel cleared")
+        Log.d(TAG, "viewmodel cleared")
     }
 
     @RequiresApi(Build.VERSION_CODES.TIRAMISU)
     override fun initUIState(instanceState: Bundle) {
 
         val uiState =
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU)
-                instanceState.getParcelable(VIDEOPLAYER_UI_STATE, VideoPlayerUIState::class.java)
-            else
-                instanceState.getParcelable(VIDEOPLAYER_UI_STATE)
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) instanceState.getParcelable(
+                VIDEOPLAYER_UI_STATE, VideoPlayerUIState::class.java
+            )
+            else instanceState.getParcelable(VIDEOPLAYER_UI_STATE)
 
         uiState?.let { uiState ->
             mutableUiState.update {
@@ -171,11 +207,11 @@ class VideoPlayerViewModelImpl @Inject constructor(
     }
 
     override fun prevStream() {
-        println("imeplement prev stream")
+        Log.e(TAG, "imeplement prev stream")
     }
 
     override fun nextStream() {
-        println("implement next stream")
+        Log.e(TAG, "implement next stream")
     }
 
     override fun switchToEmbeddedView() {
@@ -196,7 +232,8 @@ class VideoPlayerViewModelImpl @Inject constructor(
             override val player: Player? = null
             override val uiState = MutableStateFlow(VideoPlayerUIState.DEFAULT)
             override var listener: VideoPlayerViewModel.Listener? = null
-
+            override var minContentRatio = 4F / 3F
+            override var maxContentRatio = 16F / 9F
 
             override fun initUIState(instanceState: Bundle) {
                 println("dummy impl")

new-player/src/main/java/net/newpipe/newplayer/ui/VideoPlayerLoadingPlaceholder.kt

@@ -1,6 +1,7 @@
 package net.newpipe.newplayer.ui
 
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.aspectRatio
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Surface
@@ -16,9 +17,9 @@ import androidx.compose.ui.unit.dp
 import net.newpipe.newplayer.ui.theme.VideoPlayerTheme
 
 @Composable
-fun VideoPlayerLoadingPlaceholder() {
+fun VideoPlayerLoadingPlaceholder(aspectRatio:Float = 3F/1F) {
     Surface(
-        modifier = Modifier.fillMaxWidth().height(200.dp),
+        modifier = Modifier.fillMaxWidth().aspectRatio(aspectRatio),
         color = Color.Black
     ) {
         Box {

new-player/src/main/java/net/newpipe/newplayer/ui/VideoPlayerUI.kt

@@ -25,7 +25,9 @@ import android.view.SurfaceView
 import androidx.activity.compose.BackHandler
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.aspectRatio
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
@@ -53,8 +55,10 @@ import net.newpipe.newplayer.utils.findActivity
 fun VideoPlayerUI(
     viewModel: VideoPlayerViewModel?,
 ) {
-    if (viewModel?.player == null) {
+    if (viewModel == null) {
         VideoPlayerLoadingPlaceholder()
+    } else if (viewModel.player == null) {
+        VideoPlayerLoadingPlaceholder(viewModel.uiState.collectAsState().value.maxContentRatio)
     } else {
         val uiState by viewModel.uiState.collectAsState()
 
@@ -106,8 +110,13 @@ fun VideoPlayerUI(
         }
 
         // Set UI
+        val aspectRatio =
+            uiState.contentRatio.coerceIn(uiState.minContentRatio, uiState.maxContentRatio)
+
         Surface(
-            modifier = Modifier.fillMaxSize(),
+            modifier = Modifier
+                .fillMaxWidth()
+                .aspectRatio(aspectRatio),
             color = Color.Black
         ) {
             AndroidView(

test-app/src/main/java/net/newpipe/newplayer/testapp/MainActivity.kt

@@ -51,6 +51,8 @@ class MainActivity : AppCompatActivity() {
         video_view.viewModel = videoPlayerViewModel
         videoPlayerViewModel.newPlayer = newPlayer
 
+        videoPlayerViewModel.maxContentRatio = 4F/3F
+
         /*
         video_view.fullScreenToggleListener = object : VideoPlayerView.FullScreenToggleListener {
             override fun fullscreenToggle(turnOn: Boolean) {