Module: AudioToolbox

Extended by:

FFI::Library

Defined in:

lib/macos/audio_toolbox.rb,
lib/macos/audio_toolbox/audio_converter.rb

Defined Under Namespace

Classes: AudioConverterRef

Constant Summary

OSStatus =

CoreFoundation::OSStatus

AudioStreamBasicDescription =

CoreAudio::AudioStreamBasicDescription

Class Method Summary

• .converter(from, to) ⇒ AudioConverterRef

  Create a new AudioConverter that convertes between the given stream formats.

Class Method Details

.converter(from, to) ⇒ AudioConverterRef

Create a new AudioConverter that convertes between the given stream formats

Parameters:

• from (AudioStreamBasicDescription) —

  the stream format to convert from

• to (AudioStreamBasicDescription) —

  the stream format to convert to

Returns:

• (AudioConverterRef)

# File 'lib/macos/audio_toolbox.rb', line 46

def self.converter(from, to)
  reference = FFI::MemoryPointer.new(AudioConverterRef)
  status = AudioToolbox.AudioConverterNew(from, to, reference)
  raise "No converter '#{[status].pack('L').reverse}'" unless status.zero?
  AudioConverterRef.new(reference.get_pointer(0)).tap do |converter|
 converter.from = from
 converter.to = to
  end
end