ericentin / nifsy Goto Github PK

Hi @potatosalad!

More developers are using Elixir for data processing and the speed from which we read and write to files has lately been a concern. @antipax decided to explore solutions and one of them is this project: a module that implements file read and write operations as a NIF. For performance, we are reading data into a buffer and then read out of the buffer (similar to Erlang read-ahead). This is considerably faster than Erlang default file handling (that uses a process + port) and about 3x-4x faster than Elixir streams.

The reason we are pinging you is that you have done great work on C libraries so we would love if you could do a code review in your spare time. In particular, we would love to know if we can further optimize our buffer handling, reduce the amount of allocations, etc.

Thank you! ❤️

Hello. I try to read an audio file for later sending to external service.And the data is corrupted while reading

Simple example:

"path/to/input/file.wav"
|> Nifsy.stream!()
|> Stream.into(File.stream!("path/to/output/file.wav"))
|> Stream.run()

The output file has a noise