Lambda is not a good fit for long running processes. Also, the lambda instances that run your code only have a small amount of RAM (I believe 512MB is the defa

Lambda is not a good fit for long running processes. Also, the lambda instances that run your code only have a small amount of RAM (I believe 512MB is the default, but it is tunable). In short, I don't believe lambda would be a good fit for your 4K video encoding use case.