Struct rubato::FftFixedOut [−][src]
pub struct FftFixedOut<T> { /* fields omitted */ }
Expand description
A synchronous resampler that needs a varying number of audio frames for input and returns a fixed number of frames.
The resampling is done by FFT:ing the input data. The spectrum is then extended or truncated as well as multiplied with an antialiasing filter before it’s inverse transformed to get the resampled waveforms.
Implementations
Create a new FftFixedOut
Parameters are:
fs_in
: Input sample rate.fs_out
: Output sample rate.chunk_size_out
: length of output data in frames.sub_chunks
: desired number of subchunks for processing, actual number may be different.nbr_channels
: number of channels in input/output.
Trait Implementations
Query for the number of frames needed for the next call to “process”.
Resample a chunk of audio. The required input length is provided by the “nbr_frames_needed” function, and the output length is fixed. If the waveform for a channel is empty, this channel will be ignored and produce a corresponding empty output waveform.
Errors
The function returns an error if the length of the input data is not equal to the number of channels defined when creating the instance, and the number of audio frames given by “nbr_frames_needed”.
Update the resample ratio. This is not supported by this resampler and always returns an error.
Update the resample ratio relative to the original one. This is not supported by this resampler and always returns an error.