Filter questions

[jedwards4b]

We have written a new filter which can be run on the GPU. My question is that if we use the new filter to compress using deflate or zstd on GPU is there a mechanism or can we create a mechanism to first try the GPU based filter and if it is not found fall back to the cpu filter to decompress the file?

[DennisHeimbigner]

Short answer: no. I think the best you can do is build a single combined filter that chooses the filter to use
based on whatever criteria it uses.

[jedwards4b]

So we should add something into our filter that calls back to the cpu zstd or deflate if the gpu were not available. That makes sense, thank you.