nanki/ffi-portaudio

Ruby bindings for PortAudio.

ffi-portaudio's Issues

Closing the audiostream hangs the process

Hi,

Calling the .close method on the AudioStream causes my process to hang, unresponsive even to Ctrl-C. I have to kill it.

I'm using the Speaker example code, with the simple addition of this method in the Speaker module:

  def close
    @@stream.close
  end

Then I call Speaker.close at the end of the example (instead of muting it).

Could you please update this gem or update the gemspec?

　I would like to use ffi-portaudio, but the changes in #4 have not been applied, so I need to patch it by myself even if I install the gem. If you install from source code, the version of the dependent library of the gem is outdated, so you need to rewrite the version of the dependent library. For example, using bundler 1.0 is a difficult thing to do in this day and age.
　Can I use gemspec to release a new gem or update the version of the dependent library?

Translated with www.DeepL.com/Translator (free version)

`attach_function': Function 'Pa_GetVersion' not found in [libportaudio.so] (FFI::NotFoundError)

I get this error when I try to run the examples:

~/.rvm/gems/ruby-2.1.0/gems/ffi-1.9.3/lib/ffi/library.rb:261:in `attach_function': Function 'Pa_GetVersion' not found in [libportaudio.so] (FFI::NotFoundError)
    from ~/.rvm/gems/ruby-2.1.0/gems/ffi-portaudio-0.1.2/lib/ffi-portaudio/api.rb:9:in `<module:API>'
    from ~/.rvm/gems/ruby-2.1.0/gems/ffi-portaudio-0.1.2/lib/ffi-portaudio/api.rb:1:in `<top (required)>'
    from ~/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from ~/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from ~/.rvm/gems/ruby-2.1.0/gems/ffi-portaudio-0.1.2/lib/ffi-portaudio.rb:9:in `<module:PortAudio>'
    from ~/.rvm/gems/ruby-2.1.0/gems/ffi-portaudio-0.1.2/lib/ffi-portaudio.rb:3:in `<top (required)>'
    from ~/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135:in `require'
    from ~/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
    from ~/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:144:in `require'
    from spectrum.rb:1:in `<main>'

On this system:

ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux]
Linux 3.12-1-amd64 #1 SMP Debian 3.12.8-1 (2014-01-19) x86_64 GNU/Linux

I also tried it with older ruby versions but that didn't change anything. (libportaudio-dev [18.1-7.1] is installed)