From 6c78c96d80618598692c121672f6d56e2feade5a Mon Sep 17 00:00:00 2001
From: tassaron
Date: Tue, 6 Jun 2017 08:55:22 -0400
Subject: fixed empty preview frame bug

---
 components/video.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/components/video.py b/components/video.py
index 3162279..de91264 100644
--- a/components/video.py
+++ b/components/video.py
@@ -90,7 +90,11 @@ class Component(__base__.Component):
         width = int(previewWorker.core.settings.value('outputWidth'))
         height = int(previewWorker.core.settings.value('outputHeight'))
         self.chunkSize = 4*width*height
-        return self.getPreviewFrame(width, height)
+        frame = self.getPreviewFrame(width, height)
+        if not frame:
+            return Image.new("RGBA", (width, height),(0,0,0,0))
+        else:
+            return frame
     
     def preFrameRender(self, **kwargs):
         super().preFrameRender(**kwargs)
@@ -122,6 +126,8 @@ class Component(__base__.Component):
             self.update()
     
     def getPreviewFrame(self, width, height):
+        if not self.videoPath or not os.path.exists(self.videoPath):
+            return
         command = [
             self.parent.core.FFMPEG_BIN,
             '-thread_queue_size', '512',
-- 
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