[Android] PiP: Update AR on video change

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Fri Dec 20 15:34:14 2019 +0100| [5cd908b7b1cfd8046f1340a47e754a00129f58fa] | committer: Geoffrey Métais

PiP: Update AR on video change

Fix #1138

> https://code.videolan.org/videolan/vlc-android/commit/5cd908b7b1cfd8046f1340a47e754a00129f58fa
---

 vlc-android/src/org/videolan/vlc/gui/video/VideoPlayerActivity.kt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/vlc-android/src/org/videolan/vlc/gui/video/VideoPlayerActivity.kt b/vlc-android/src/org/videolan/vlc/gui/video/VideoPlayerActivity.kt
index 6b73f672c..3d844fd9c 100644
--- a/vlc-android/src/org/videolan/vlc/gui/video/VideoPlayerActivity.kt
+++ b/vlc-android/src/org/videolan/vlc/gui/video/VideoPlayerActivity.kt
@@ -1566,6 +1566,11 @@ open class VideoPlayerActivity : AppCompatActivity(), IPlaybackSettingsControlle
         observeDownloadedSubtitles()
         optionsDelegate?.setup()
         settings.edit().remove(VIDEO_PAUSED).apply()
+        if (isInPictureInPictureMode && Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val track = service?.playlistManager?.player?.mediaplayer?.currentVideoTrack ?: return
+            val ar = Rational(track.width.coerceAtMost((track.height * 2.39f).toInt()), track.height)
+            setPictureInPictureParams(PictureInPictureParams.Builder().setAspectRatio(ar).build())
+        }
     }
 
     private fun encounteredError() {