ShowSpectrumContext Struct Reference

Data Fields
const AVClass *	class
int	w
int	h
AVFrame *	outpicref
int	req_fullfilled
int	nb_display_channels
int	channel_height
int	sliding
	1 if sliding mode, 0 otherwise
enum DisplayMode	mode
	channel display mode
enum ColorMode	color_mode
	display color scheme
enum DisplayScale	scale
float	saturation
	color saturation multiplier
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.
float *	combine_buffer
	color combining buffer (3 * h items)

Detailed Description

Definition at line 41 of file avf_showspectrum.c.

Field Documentation

const AVClass* ShowSpectrumContext::class

Definition at line 42 of file avf_showspectrum.c.

int ShowSpectrumContext::w

Definition at line 43 of file avf_showspectrum.c.

Referenced by config_output().

int ShowSpectrumContext::h

Definition at line 43 of file avf_showspectrum.c.

Referenced by config_output().

AVFrame* ShowSpectrumContext::outpicref

Definition at line 44 of file avf_showspectrum.c.

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

int ShowSpectrumContext::req_fullfilled

Definition at line 45 of file avf_showspectrum.c.

Referenced by push_frame(), and request_frame().

int ShowSpectrumContext::nb_display_channels

Definition at line 46 of file avf_showspectrum.c.

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

int ShowSpectrumContext::channel_height

Definition at line 47 of file avf_showspectrum.c.

Referenced by config_output(), and plot_spectrum_column().

int ShowSpectrumContext::sliding

1 if sliding mode, 0 otherwise

Definition at line 48 of file avf_showspectrum.c.

Referenced by plot_spectrum_column().

enum DisplayMode ShowSpectrumContext::mode

channel display mode

Definition at line 49 of file avf_showspectrum.c.

Referenced by config_output(), and plot_spectrum_column().

enum ColorMode ShowSpectrumContext::color_mode

display color scheme

Definition at line 50 of file avf_showspectrum.c.

Referenced by plot_spectrum_column().

enum DisplayScale ShowSpectrumContext::scale

Definition at line 51 of file avf_showspectrum.c.

Referenced by plot_spectrum_column().

float ShowSpectrumContext::saturation

color saturation multiplier

Definition at line 52 of file avf_showspectrum.c.

Referenced by plot_spectrum_column().

int ShowSpectrumContext::xpos

x position (current column)

Definition at line 53 of file avf_showspectrum.c.

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

RDFTContext* ShowSpectrumContext::rdft

Real Discrete Fourier Transform context.

Definition at line 54 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 55 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 56 of file avf_showspectrum.c.

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

int ShowSpectrumContext::filled

number of samples (per channel) filled in current rdft_buffer

Definition at line 57 of file avf_showspectrum.c.

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

int ShowSpectrumContext::consumed

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

Definition at line 58 of file avf_showspectrum.c.

Referenced by filter_frame(), and plot_spectrum_column().

float* ShowSpectrumContext::window_func_lut

Window function LUT.

Definition at line 59 of file avf_showspectrum.c.

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

float* ShowSpectrumContext::combine_buffer

color combining buffer (3 * h items)

Definition at line 60 of file avf_showspectrum.c.

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

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

• libavfilter/avf_showspectrum.c