revert to use play/pause, and timer for waiting for video to composite

Author: kaustuvpokharel

src/qml/editorwidgets/relationeditors/gallery_relation_editor.qml

@@ -194,16 +194,23 @@ RelationEditorBase {
 
             onHasVideoChanged: {
               if (hasVideo && !listVideoThumbLoader.firstFrameDrawn) {
-                seek(1);
+                play();
               }
             }
 
             onPositionChanged: {
-              if (!listVideoThumbLoader.firstFrameDrawn && position > 0) {
+              if (!listVideoThumbLoader.firstFrameDrawn && playbackState === MediaPlayer.PlayingState) {
                 listVideoThumbLoader.firstFrameDrawn = true;
-                pause();
+                listThumbnailPauseTimer.start();
               }
             }
+
+            Timer {
+              id: listThumbnailPauseTimer
+              interval: 80
+              repeat: false
+              onTriggered: parent.pause()
+            }
           }
         }
       }
@@ -368,16 +375,23 @@ RelationEditorBase {
 
             onHasVideoChanged: {
               if (hasVideo && !videoThumbLoader.firstFrameDrawn) {
-                seek(1);
+                play();
               }
             }
 
             onPositionChanged: {
-              if (!videoThumbLoader.firstFrameDrawn && position > 0) {
+              if (!videoThumbLoader.firstFrameDrawn && playbackState === MediaPlayer.PlayingState) {
                 videoThumbLoader.firstFrameDrawn = true;
-                pause();
+                thumbnailPauseTimer.start();
               }
             }
+
+            Timer {
+              id: thumbnailPauseTimer
+              interval: 80
+              repeat: false
+              onTriggered: parent.pause()
+            }
           }
         }
       }