waifu2x-ios: Stuck on "Generating"

This seems to happen almost every time I perform a batch (although it’s possible that I haven’t tried enough singles to know it never happens there either). I haven’t done nearly as much with photos; my input is primarily h.264 or HEVC. I’ve mostly been using the Real- models. But I remember it happening on PAN as well.

Output file sizes are usually less than 4GB. I always run with Parallel Processing using ANE + GPU. There is no consistency on which video gets stuck. Could be the first two in the batch, or somewhere in the middle. But one thing has been very consistent: there are always two videos stuck on “Generating.” There’s never just one video that didn’t make it.

Some other information that might be useful: clicking the “Stop” button does not stop it from generating. I have to quit waifu2x in order to start another batch. Additionally, after quitting the app, the files that were being generated appear to have the expected file size for a completed render.

It seems like maybe something is getting stuck in the completion of the container, rather that the video itself? Although, that doesn’t explain why two always get stuck.

No error, but the next two jobs seem to be stuck on “Generating” as a status. I’m not sure how long it’s been like this, but it doesn’t look like it’s going to change any time soon. What part of the encode is this status? How long should it take?

_Originally posted by @mattbisme in https://github.com/imxieyi/waifu2x-ios/issues/48#issuecomment-1093361006_