From 4ec0bcba724c77de2745c459a201032f845a2a32 Mon Sep 17 00:00:00 2001
From: kevgrig <kevin@myplaceonline.com>
Date: Wed, 4 Jan 2023 01:55:00 -0600
Subject: [PATCH] Support fast forward and rewind in audio player (#2380)

* Support fast forward and rewind in audio player

Signed-off-by: Kevin G <kevin@myplaceonline.com>

* Use CDI for UserSettingPreferences

Signed-off-by: Kevin G <kevin@myplaceonline.com>

Signed-off-by: Kevin G <kevin@myplaceonline.com>
---
 .../ui/playback/AudioNowPlayingFragment.java  |  8 +++--
 .../androidtv/ui/playback/MediaManager.java   | 29 ++++++++++++++++++-
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/org/jellyfin/androidtv/ui/playback/AudioNowPlayingFragment.java b/app/src/main/java/org/jellyfin/androidtv/ui/playback/AudioNowPlayingFragment.java
index 9fc2f8d139..b8c8662605 100644
--- a/app/src/main/java/org/jellyfin/androidtv/ui/playback/AudioNowPlayingFragment.java
+++ b/app/src/main/java/org/jellyfin/androidtv/ui/playback/AudioNowPlayingFragment.java
@@ -323,13 +323,17 @@ public boolean onKey(View v, int keyCode, KeyEvent event) {
                 }
                 return true;
             case KeyEvent.KEYCODE_MEDIA_NEXT:
-            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
                 mediaManager.getValue().nextAudioItem();
                 return true;
+            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
+                mediaManager.getValue().fastForward();
+                return true;
             case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
-            case KeyEvent.KEYCODE_MEDIA_REWIND:
                 mediaManager.getValue().prevAudioItem();
                 return true;
+            case KeyEvent.KEYCODE_MEDIA_REWIND:
+                mediaManager.getValue().rewind();
+                return true;
             case KeyEvent.KEYCODE_DPAD_RIGHT:
                 if (ssActive) {
                     mediaManager.getValue().nextAudioItem();
diff --git a/app/src/main/java/org/jellyfin/androidtv/ui/playback/MediaManager.java b/app/src/main/java/org/jellyfin/androidtv/ui/playback/MediaManager.java
index b00fb2bdcd..a9f15b075b 100644
--- a/app/src/main/java/org/jellyfin/androidtv/ui/playback/MediaManager.java
+++ b/app/src/main/java/org/jellyfin/androidtv/ui/playback/MediaManager.java
@@ -27,6 +27,7 @@
 import org.jellyfin.androidtv.data.compat.AudioOptions;
 import org.jellyfin.androidtv.data.compat.StreamInfo;
 import org.jellyfin.androidtv.data.model.DataRefreshService;
+import org.jellyfin.androidtv.preference.UserSettingPreferences;
 import org.jellyfin.androidtv.ui.itemhandling.AudioQueueItem;
 import org.jellyfin.androidtv.ui.itemhandling.BaseRowItem;
 import org.jellyfin.androidtv.ui.itemhandling.ItemRowAdapter;
@@ -98,6 +99,7 @@ public class MediaManager {
     private List<org.jellyfin.sdk.model.api.BaseItemDto> mCurrentVideoQueue;
 
     private Lazy<NavigationRepository> navigationRepository = inject(NavigationRepository.class);
+    private Lazy<UserSettingPreferences> userPrefs = inject(UserSettingPreferences.class);
 
     public MediaManager(Context context) {
         this.context = context;
@@ -967,7 +969,6 @@ public void playPauseAudio() {
         }
     }
 
-
     public void resumeAudio() {
         if (mCurrentAudioItem != null && getIsAudioPlayerInitialized()) {
             ensureAudioFocus();
@@ -985,6 +986,32 @@ public void resumeAudio() {
         }
     }
 
+    public void fastForward() {
+        seek(userPrefs.getValue().get(UserSettingPreferences.Companion.getSkipForwardLength()));
+    }
+
+    public void rewind() {
+        seek(-userPrefs.getValue().get(UserSettingPreferences.Companion.getSkipBackLength()));
+    }
+
+    public void seek(int offset) {
+        if (mCurrentAudioItem != null && isPlayingAudio()) {
+            if (nativeMode) {
+                Timber.d("Fast forward %d with ExoPlayer", offset);
+                if (mExoPlayer.isCurrentMediaItemSeekable()) {
+                    mCurrentAudioPosition = Utils.getSafeSeekPosition(mExoPlayer.getCurrentPosition() + offset, mExoPlayer.getDuration());
+                    mExoPlayer.seekTo(mCurrentAudioPosition);
+                }
+            } else {
+                Timber.d("Fast forward %d with VLC Player", offset);
+                if (mVlcPlayer.isSeekable()) {
+                    mCurrentAudioPosition = Utils.getSafeSeekPosition(mVlcPlayer.getTime() + offset, mVlcPlayer.getLength());
+                    mVlcPlayer.setTime(mCurrentAudioPosition);
+                }
+            }
+        }
+    }
+
     public void setCurrentMediaPosition(int currentMediaPosition) {
         if (currentMediaPosition < 0) return;
         if (mCurrentMediaAdapter == null && mCurrentVideoQueue == null) return;