Gallery2: Seek to trim start time only once when playing

- When playing video in TrimVideo activity, it may enter an endless
  loop: Seek to trim start time (actually sought to previous sync frame)
  -> Periodic check, if current position < trim startm, seek again.

- This patch adds a flag to ensure seeking to trim start time only once.

Change-Id: I3cd74fbd85546cc35d5c32797ab7f1775f091586
CRs-Fixed: 694431

1 files changed, 4 insertions, 1 deletions

diff --git a/src/com/android/gallery3d/app/TrimVideo.java b/src/com/android/gallery3d/app/TrimVideo.java
index c5d721274..a52c25606 100644
--- a/src/com/android/gallery3d/app/TrimVideo.java
+++ b/src/com/android/gallery3d/app/TrimVideo.java
@@ -57,6 +57,7 @@ public class TrimVideo extends Activity implements
 
     private int mTrimStartTime = 0;
     private int mTrimEndTime = 0;
+    private boolean mCheckTrimStartTime;
     private int mVideoPosition = 0;
     public static final String KEY_TRIM_START = "trim_start";
     public static final String KEY_TRIM_END = "trim_end";
@@ -177,10 +178,11 @@ public class TrimVideo extends Activity implements
         mVideoPosition = mVideoView.getCurrentPosition();
         // If the video position is smaller than the starting point of trimming,
         // correct it.
-        if (mVideoPosition < mTrimStartTime) {
+        if (mCheckTrimStartTime && (mVideoPosition < mTrimStartTime)) {
             mVideoView.seekTo(mTrimStartTime);
             mVideoPosition = mTrimStartTime;
         }
+        mCheckTrimStartTime = false;
         // If the position is bigger than the end point of trimming, show the
         // replay button and pause.
         if (mVideoPosition >= mTrimEndTime && mTrimEndTime > 0) {
@@ -204,6 +206,7 @@ public class TrimVideo extends Activity implements
 
     private void playVideo() {
         mVideoView.start();
+        mCheckTrimStartTime = true;
         mController.showPlaying();
         setProgress();
     }