feat: LibPasada player using stretcher

app/src/main/java/at/lockstep/player/pasada/LibPasada.java

@@ -21,7 +21,7 @@ public final class LibPasada {
         if (loaded) {
             return;
         }
-        System.loadLibrary("pasada");
+        System.loadLibrary("lockstep-native");
         loaded = true;
     }
 
@@ -72,4 +72,7 @@ public final class LibPasada {
 
     /** Register listener for async events raised from the audio/native thread. */
     public static native void setPlaybackListener(PasadaPlaybackListener listener);
+
+    /** native version string */
+    public static native String getVersion();
 }

app/src/main/java/at/lockstep/player/pasada/PasadaPlaybackListener.java

@@ -9,6 +9,8 @@ public interface PasadaPlaybackListener {
     /** Current track reached end; service should advance queue and call {@link LibPasada#play}. */
     void onTrackFinished();
 
+    void onTrackClosed(int fd);
+
     /** Decode / Oboe / pipeline failure; service should stop safely and surface error. */
     void onError(int errorCode, String message);
 }

app/src/main/java/at/lockstep/player/playback/PlaybackService.kt

@@ -17,6 +17,7 @@ import at.lockstep.player.LockstepApplication
 import at.lockstep.player.MainActivity
 import at.lockstep.player.R
 import at.lockstep.player.playback.engine.ExoPlayerMusicPlayerEngine
+import at.lockstep.player.playback.engine.PasadaMusicPlayerEngine
 import at.lockstep.player.playback.engine.MusicPlayerEngine
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -204,7 +205,8 @@ class PlaybackService : Service() {
         engine?.let {
             return it
         }
-        return ExoPlayerMusicPlayerEngine(this)
+        //return ExoPlayerMusicPlayerEngine(this)
+        return PasadaMusicPlayerEngine(this)
             .also {
                 it.setListener(engineListener)
                 it.initSession()

app/src/main/java/at/lockstep/player/playback/engine/PasadaMusicPlayerEngine.kt

@@ -6,6 +6,7 @@ import android.net.Uri
 import android.os.Handler
 import android.os.Looper
 import android.os.ParcelFileDescriptor
+import android.util.Log
 import at.lockstep.player.pasada.LibPasada
 import at.lockstep.player.pasada.PasadaPlaybackListener
 import java.io.IOException
@@ -35,12 +36,18 @@ class PasadaMusicPlayerEngine(
     private val nativeListener =
         object : PasadaPlaybackListener {
             override fun onTrackFinished() {
+                Log.i(TAG, "PasadaPlaybackListener.onTrackFinished()")
                 pendingStart = false
                 mainHandler.post {
                     listener?.onPlaybackEnded()
                 }
             }
 
+            override fun onTrackClosed(fd: Int) {
+                Log.i(TAG, "onTrackClosed: native returned fd=$fd")
+                // we handle parcel close() separately
+            }
+
             override fun onError(
                 errorCode: Int,
                 message: String,
@@ -51,13 +58,18 @@ class PasadaMusicPlayerEngine(
             }
         }
 
+    val TAG = "PasadaMusicPlayerEngine"
+
     override fun initSession() {
         if (sessionInitialized) {
             return
         }
+        Log.i(TAG, "LibPasada.loadNative() ...")
         LibPasada.loadNative()
         LibPasada.setPlaybackListener(nativeListener)
+        Log.i(TAG, "LibPasada.init() ...")
         LibPasada.init()
+        Log.i(TAG, "LibPasada.init() done.")
         sessionInitialized = true
     }
 
@@ -131,7 +143,9 @@ class PasadaMusicPlayerEngine(
 
     private fun startPendingTrack() {
         val fd = trackFd ?: return
+        Log.i(TAG, "LibPasada.play(fd=$fd, offset=$trackOffset, length=$trackLength) ...")
         LibPasada.play(fd, trackOffset, trackLength)
+        Log.i(TAG, "LibPasada.play() done.")
         pendingStart = false
     }
 

app/src/main/java/com/rex/logger/NdkLogger.java

@@ -0,0 +1,64 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package com.rex.logger;
+
+import android.util.Log;
+
+//import proguard.annotation.KeepName;
+
+//@KeepName
+
+/**
+ * Gather native log into logback, for easy control save log into SDCard
+ */
+public class NdkLogger {
+    private static final String TAG = "NDK";
+
+    //@KeepName
+    public static void logWrite(int level, String message) {
+        //sLogger.trace("level:{} message:{}", level, message);
+        switch (level) {
+            case Log.VERBOSE:
+                Log.v(TAG, message);
+                break;
+            case Log.DEBUG:
+                Log.d(TAG, message);
+                break;
+            case Log.INFO:
+                Log.i(TAG, message);
+                break;
+            case Log.WARN:
+                Log.w(TAG, message);
+                break;
+            case Log.ERROR:
+                Log.e(TAG, message);
+                break;
+        }
+    }
+
+    static {
+        try {
+            System.loadLibrary("ndk-logger");
+        } catch (UnsatisfiedLinkError ex) {
+            Log.e(TAG, "Failed to load library.", ex);
+        }
+    }
+
+    public static String getABI() { return native_getABI(); }
+    private static native String native_getABI();
+}