hi Martin, On Mon, 29 Jan 2024 22:38:27 -0600 "Martin McCormick" <marti...@suddenlink.net> wrote:
> Shlomi Fish <shlo...@shlomifish.org> writes: > > hi Martin, > > you can try using an FFI, eg: > > > > https://metacpan.org/dist/Inline-C/view/lib/Inline/C.pod > > > > https://metacpan.org/dist/Inline-Python/view/Python.pod > > > > https://metacpan.org/pod/FFI::Platypus > > Many thanks. I am glad I asked the question but it has taken me > some time to digest your answer as I wasn't familiar with the > term FFI so, after exercising duckduckgo, I now know those > letters stand for Foreign Function Interface which makes perfect > sense based on what needs to be done. Unfortunately, FFI's are > usually used by higher-level languages to take advantage of the > capabilities found in lower-level languages such as C which is > closer to assembler and can efficiently access the hardware such > as an audio or video device. > I meant that you can use Inline::C or perlxs or similar to write wrappers/bindings for libalsa/etc. > I was hoping there might be a perl module like a > fictional one I will call Device::ALSA which would understand the > syntax used in capturing audio from a microphone or line input, > like a microphone input, only not as sensitive, where one > customarily feeds sound from the output of whatever one is > recording from. > > There are standard alsa conventions for setting sample > rate and other parameters which I mentioned in the earlier > posting so if one knows what sort of digital stream they nead, > they just stuff those values in to the function whose output is > that stream of digital data. What you do with those data is up > to you but the module takes care of getting the bits from the > hardware or sending the bits to your speakers or headphones and > would also support the alsa plugins which are used by the arecord > and aplay utilities for added capabilities. > > I can understand why there is no perl module like > Device::alsa because it would not be portable between Windows and > Linus. The l in alsa is for Linux so basically, I was just > curious to see if anything like Device::ALSA existed and it > apparently does not exist. > Devs *have* written linux-only or mswindows-only perl5/CPAN modules. > Anyway, the FFI concept will probably someday come in > handy for a different project so I will continue with the C I was > working on. > > Thanks again. > > Martin > -- Shlomi Fish https://www.shlomifish.org/ https://www.shlomifish.org/open-source/resources/tech-tips/ XSLT isn't like violence. XSLT is violence - there is no such thing as using it too little. — https://www.shlomifish.org/humour/bits/facts/XSLT/ Please reply to list if it's a mailing list post - https://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
