The first error you are receiving is stating that the layout is invalid. I would recommend checking the Layout to make sure there are no empty regions that may be generating this error.
If the video is not able to be displayed, it could be due to the Codec as you have mentioned. I have attached a copy of our Guide to videos that will not play below, which provides multiple possible solutions to the issue:
You may have to check with the Display manufacturer what codecs are supported on the Display to confirm the best codec to use.
Many Thanks.