fix(android): refactor source, fix random DRM issue and crop start on…

… local asset (#3835)

* fix: refactor source parameter parsing

Also fix a side issue when using a local file cropping props were not applied
Also fix random DRM issue by refactoring initializePlayerSource #3082

* chore: restore metadata checks before appling them

android/src/main/java/com/brentvatne/common/api/Source.kt

@@ -0,0 +1,210 @@
+package com.brentvatne.common.api
+
+import android.annotation.SuppressLint
+import android.content.ContentResolver
+import android.content.Context
+import android.content.res.Resources
+import android.net.Uri
+import android.text.TextUtils
+import com.brentvatne.common.toolbox.DebugLog
+import com.brentvatne.common.toolbox.DebugLog.e
+import com.brentvatne.common.toolbox.ReactBridgeUtils.safeGetArray
+import com.brentvatne.common.toolbox.ReactBridgeUtils.safeGetInt
+import com.brentvatne.common.toolbox.ReactBridgeUtils.safeGetMap
+import com.brentvatne.common.toolbox.ReactBridgeUtils.safeGetString
+import com.facebook.react.bridge.ReadableMap
+import java.util.Locale
+
+/**
+ * Class representing Source props for host.
+ * Only generic code here, no reference to the player.
+ */
+class Source {
+    /** String value of source to playback */
+    private var uriString: String? = null
+
+    /** Parsed value of source to playback */
+    var uri: Uri? = null
+
+    /** Start position of playback used to resume playback */
+    var startPositionMs: Int = -1
+
+    /** Will crop content start at specified position */
+    var cropStartMs: Int = -1
+
+    /** Will crop content end at specified position */
+    var cropEndMs: Int = -1
+
+    /** Allow to force stream content, necessary when uri doesn't contain content type (.mlp4, .m3u, ...) */
+    var extension: String? = null
+
+    /** Metadata to display in notification */
+    var metadata: Metadata? = null
+
+    /** http header list */
+    val headers: MutableMap<String, String> = HashMap()
+
+    /** return true if this and src are equals  */
+    override fun equals(other: Any?): Boolean {
+        if (other == null || other !is Source) return false
+        return (
+            uri == other.uri &&
+                cropStartMs == other.cropStartMs &&
+                cropEndMs == other.cropEndMs &&
+                startPositionMs == other.startPositionMs &&
+                extension == other.extension
+            )
+    }
+
+    /** return true if this and src are equals  */
+    fun isEquals(source: Source): Boolean {
+        return this == source
+    }
+
+    /** Metadata to display in notification */
+    class Metadata {
+        /** Metadata title */
+        var title: String? = null
+
+        /** Metadata subtitle */
+        var subtitle: String? = null
+
+        /** Metadata description */
+        var description: String? = null
+
+        /** Metadata artist */
+        var artist: String? = null
+
+        /** image uri to display */
+        var imageUri: Uri? = null
+
+        companion object {
+            private const val PROP_SRC_METADATA_TITLE = "title"
+            private const val PROP_SRC_METADATA_SUBTITLE = "subtitle"
+            private const val PROP_SRC_METADATA_DESCRIPTION = "description"
+            private const val PROP_SRC_METADATA_ARTIST = "artist"
+            private const val PROP_SRC_METADATA_IMAGE_URI = "imageUri"
+
+            /** parse metadata object */
+            @JvmStatic
+            fun parse(src: ReadableMap?): Metadata? {
+                if (src != null) {
+                    val metadata = Metadata()
+                    metadata.title = safeGetString(src, PROP_SRC_METADATA_TITLE)
+                    metadata.subtitle = safeGetString(src, PROP_SRC_METADATA_SUBTITLE)
+                    metadata.description = safeGetString(src, PROP_SRC_METADATA_DESCRIPTION)
+                    metadata.artist = safeGetString(src, PROP_SRC_METADATA_ARTIST)
+                    val imageUriString = safeGetString(src, PROP_SRC_METADATA_IMAGE_URI)
+                    try {
+                        metadata.imageUri = Uri.parse(imageUriString)
+                    } catch (e: Exception) {
+                        e(TAG, "Could not parse imageUri in metadata")
+                    }
+                    return metadata
+                }
+                return null
+            }
+        }
+    }
+
+    companion object {
+        private const val TAG = "Source"
+        private const val PROP_SRC_URI = "uri"
+        private const val PROP_SRC_START_POSITION = "startPosition"
+        private const val PROP_SRC_CROP_START = "cropStart"
+        private const val PROP_SRC_CROP_END = "cropEnd"
+        private const val PROP_SRC_TYPE = "type"
+        private const val PROP_SRC_METADATA = "metadata"
+        private const val PROP_SRC_HEADERS = "requestHeaders"
+
+        @SuppressLint("DiscouragedApi")
+        private fun getUriFromAssetId(context: Context, uriString: String): Uri? {
+            val resources: Resources = context.resources
+            val packageName: String = context.packageName
+            var identifier = resources.getIdentifier(
+                uriString,
+                "drawable",
+                packageName
+            )
+            if (identifier == 0) {
+                identifier = resources.getIdentifier(
+                    uriString,
+                    "raw",
+                    packageName
+                )
+            }
+
+            if (identifier <= 0) {
+                // cannot find identifier of content
+                DebugLog.d(TAG, "cannot find identifier")
+                return null
+            }
+            return Uri.Builder().scheme(ContentResolver.SCHEME_ANDROID_RESOURCE).path(identifier.toString()).build()
+        }
+
+        /** parse the source ReadableMap received from app */
+        @JvmStatic
+        fun parse(src: ReadableMap?, context: Context): Source {
+            val source = Source()
+
+            if (src != null) {
+                val uriString = safeGetString(src, PROP_SRC_URI, null)
+                if (uriString == null || TextUtils.isEmpty(uriString)) {
+                    DebugLog.d(TAG, "isEmpty uri:$uriString")
+                    return source
+                }
+                var uri = Uri.parse(uriString)
+                if (uri == null) {
+                    // return an empty source
+                    DebugLog.d(TAG, "Invalid uri:$uriString")
+                    return source
+                } else if (!isValidScheme(uri.scheme)) {
+                    uri = getUriFromAssetId(context, uriString)
+                    if (uri == null) {
+                        // cannot find identifier of content
+                        DebugLog.d(TAG, "cannot find identifier")
+                        return source
+                    }
+                }
+                source.uriString = uriString
+                source.uri = uri
+                source.startPositionMs = safeGetInt(src, PROP_SRC_START_POSITION, -1)
+                source.cropStartMs = safeGetInt(src, PROP_SRC_CROP_START, -1)
+                source.cropEndMs = safeGetInt(src, PROP_SRC_CROP_END, -1)
+                source.extension = safeGetString(src, PROP_SRC_TYPE, null)
+
+                val propSrcHeadersArray = safeGetArray(src, PROP_SRC_HEADERS)
+                if (propSrcHeadersArray != null) {
+                    if (propSrcHeadersArray.size() > 0) {
+                        for (i in 0 until propSrcHeadersArray.size()) {
+                            val current = propSrcHeadersArray.getMap(i)
+                            val key = if (current.hasKey("key")) current.getString("key") else null
+                            val value = if (current.hasKey("value")) current.getString("value") else null
+                            if (key != null && value != null) {
+                                source.headers[key] = value
+                            }
+                        }
+                    }
+                }
+                source.metadata = Metadata.parse(safeGetMap(src, PROP_SRC_METADATA))
+            }
+            return source
+        }
+
+        /** return true if rui scheme is supported for android playback */
+        private fun isValidScheme(scheme: String?): Boolean {
+            if (scheme == null) {
+                return false
+            }
+            val lowerCaseUri = scheme.lowercase(Locale.getDefault())
+            return (
+                lowerCaseUri == "http" ||
+                    lowerCaseUri == "https" ||
+                    lowerCaseUri == "content" ||
+                    lowerCaseUri == "file" ||
+                    lowerCaseUri == "rtsp" ||
+                    lowerCaseUri == "asset"
+                )
+        }
+    }
+}

android/src/main/java/com/brentvatne/exoplayer/ConfigurationUtils.kt

@@ -1,8 +1,10 @@
 package com.brentvatne.exoplayer
 
 import androidx.media3.common.MediaItem.LiveConfiguration
+import androidx.media3.common.MediaMetadata
 import com.brentvatne.common.api.BufferConfig
 import com.brentvatne.common.api.BufferConfig.Live
+import com.brentvatne.common.api.Source
 
 /**
  * Helper functions to create exoplayer configuration
@@ -33,4 +35,22 @@ object ConfigurationUtils {
         }
         return liveConfiguration
     }
+
+    /**
+     * Generate exoplayer MediaMetadata from source.Metadata
+     */
+    @JvmStatic
+    fun buildCustomMetadata(metadata: Source.Metadata?): MediaMetadata? {
+        var customMetadata: MediaMetadata? = null
+        if (metadata != null) {
+            customMetadata = MediaMetadata.Builder()
+                .setTitle(metadata.title)
+                .setSubtitle(metadata.subtitle)
+                .setDescription(metadata.description)
+                .setArtist(metadata.artist)
+                .setArtworkUri(metadata.imageUri)
+                .build()
+        }
+        return customMetadata
+    }
 }