feat: support for multiple audio/subtitle downloads

app/src/main/java/ani/dantotsu/addons/download/DownloadAddonApiV2.kt

@@ -0,0 +1,32 @@
+package ani.dantotsu.addons.download
+
+import android.content.Context
+import android.net.Uri
+
+interface DownloadAddonApiV2 {
+
+    fun cancelDownload(sessionId: Long)
+
+    fun setDownloadPath(context: Context, uri: Uri): String
+
+    suspend fun executeFFProbe(
+        videoUrl: String,
+        headers: Map<String, String> = emptyMap(),
+        logCallback: (String) -> Unit
+    )
+
+    suspend fun executeFFMpeg(
+        videoUrl: String,
+        downloadPath: String,
+        headers: Map<String, String> = emptyMap(),
+        subtitleUrls: List<Pair<String, String>> = emptyList(),
+        audioUrls: List<Pair<String, String>> = emptyList(),
+        statCallback: (Double) -> Unit
+    ): Long
+
+    fun getState(sessionId: Long): String
+
+    fun getStackTrace(sessionId: Long): String?
+
+    fun hadError(sessionId: Long): Boolean
+}