Error on missing key

achalddave · Nov 29, 2017 · 1cedac9 · 1cedac9
1 parent 9415719
commit 1cedac9
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/samplers.lua b/samplers.lua
@@ -42,6 +42,8 @@ end
 
 function VideoSampler:get_sequence(video, offset)
     local sequence = {}
+    assert(self.video_keys[video][offset] ~= nil,
+           string.format('Invalid offset %d for video %s', offset, video))
     local sampled_key = self.video_keys[video][offset]
     local last_valid_key = sampled_key
     for _ = 1, self.sequence_length do