chaiNNer
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joeyballentine
Load Video and Save Video connections trouble
Information:
- Chainner version: 0.22.0
- OS: Windows 10
Description
#2494 solved some lineage issues with connections I was having with numbers/math/iterators, so thank you for that. I have another case that seems like it should work, but does not.
Load Image and Load Images can be connected to a Switch. So can Load Image and Load Video. However, Load Images and Load Video cannot be connected. Naturally, this makes it impossible to have a Switch that handles all three input possibilities.
Found a similar issue with Save Video and appending image dimensions to the name. I'm doing something similar with Save Image without any issue.
I also notice Save Video does not have a Subdirectory field, which would be useful.
Anyway, it seems Load Video / Save Video might need a little help when someone has the time. Cheers.
However, Load Images and Load Video cannot be connected.
Not a lineage bug. This perfectly follows the rules of lineage. The issue is that switch is a special node where the normal rules of lineage don't make much sense.
Found a similar issue with Save Video and appending image dimensions to the name.
Not a lineage bug. While we (smart humans) know that all frames of a video have the same size, the lineage system cannot make this assumption. So it has to assume each frame may have a different size.
I think what we need here is a "First" node that returns the first element of a sequence. Then you could get the first frame and get its size.
Technically if we separated the loading of the video and the iterating of the frames into separate nodes, we could then have a node that gets the dimensions and other metadata of the video that would be able to run before iteration starts
No need for a separate node. We already do this metadata stuff for FPS.
Thanks for the comments. Some video formats can actually vary frame size throughout a stream, for what it's worth. It's actually very common to vary frame rate but that's a whole other can of worms.
I made an issue to track progress on a First node (#2761) and an issue to track the issue with Switch (#2762).
Since this issue isn't a problem with Load/Save Video, I'm going to close this issue now.