ShowSpectrumContext Struct Reference

Data Fields
const AVClass *	class
int	w
int	h
AVFilterBufferRef *	outpicref
int	req_fullfilled
int	xpos
	x position (current column)
RDFTContext *	rdft
	Real Discrete Fourier Transform context.
int	rdft_bits
	number of bits (RDFT window size = 1<<rdft_bits)
FFTSample *	rdft_data
	bins holder for each (displayed) channels
int	filled
	number of samples (per channel) filled in current rdft_buffer
int	consumed
	number of samples (per channel) consumed from the input frame
float *	window_func_lut
	Window function LUT.

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Detailed Description

Definition at line 35 of file avf_showspectrum.c.

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Field Documentation

const AVClass* ShowSpectrumContext::class

Definition at line 36 of file avf_showspectrum.c.

Referenced by init().

int ShowSpectrumContext::consumed

number of samples (per channel) consumed from the input frame

Definition at line 45 of file avf_showspectrum.c.

Referenced by filter_samples(), and plot_spectrum_column().

int ShowSpectrumContext::filled

number of samples (per channel) filled in current rdft_buffer

Definition at line 44 of file avf_showspectrum.c.

Referenced by config_output(), plot_spectrum_column(), and push_frame().

int ShowSpectrumContext::h

Definition at line 37 of file avf_showspectrum.c.

Referenced by config_output().

AVFilterBufferRef* ShowSpectrumContext::outpicref

Definition at line 38 of file avf_showspectrum.c.

Referenced by config_output(), plot_spectrum_column(), push_frame(), request_frame(), and uninit().

RDFTContext* ShowSpectrumContext::rdft

Real Discrete Fourier Transform context.

Definition at line 41 of file avf_showspectrum.c.

Referenced by config_output(), plot_spectrum_column(), and uninit().

int ShowSpectrumContext::rdft_bits

number of bits (RDFT window size = 1<<rdft_bits)

Definition at line 42 of file avf_showspectrum.c.

Referenced by config_output(), and plot_spectrum_column().

FFTSample* ShowSpectrumContext::rdft_data

bins holder for each (displayed) channels

Definition at line 43 of file avf_showspectrum.c.

Referenced by config_output(), plot_spectrum_column(), and uninit().

int ShowSpectrumContext::req_fullfilled

Definition at line 39 of file avf_showspectrum.c.

Referenced by push_frame(), and request_frame().

int ShowSpectrumContext::w

Definition at line 37 of file avf_showspectrum.c.

Referenced by config_output().

float* ShowSpectrumContext::window_func_lut

Window function LUT.

Definition at line 46 of file avf_showspectrum.c.

Referenced by config_output(), plot_spectrum_column(), and uninit().

int ShowSpectrumContext::xpos

x position (current column)

Definition at line 40 of file avf_showspectrum.c.

Referenced by config_output(), plot_spectrum_column(), and push_frame().

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The documentation for this struct was generated from the following file:

• libavfilter/avf_showspectrum.c