README
¶
catnip
terminal audio visualizer for linux/unix/macOS/windows*
it supports audio backends
- ALSA (linux FFmpeg)
- AVFoundation (macOS FFmpeg)
- DirectShow (windblows FFmpeg)
- Pipewire (pw-cat)
- PortAudio (linux/macOS/windblows (maybe))
- PulseAudio (parec/FFmpeg)
it depends on
-
go modules
- github.com/nsf/termbox-go
- github.com/integrii/flaggy
- github.com/pkg/errors
- github.com/noisetorch/pulseaudio
- gonum.org/v1/gonum
-
binaries
- ffmpeg (required for FFmpeg backends)
- parec (required for PulseAudio backend with parec)
- pw-cat, pw-link (required for Pipewire backend)
-
c libraries (optional, requires CGO -
CGO_ENABLED=1)- fftw (fftw3) (enable with
-tags fftw) - portaudio (portaudio-2.0) (enable with
-tags portaudio)
- fftw (fftw3) (enable with
get it
# get source
git clone https://github.com/noriah/catnip.git
# cd to dir
cd catnip
# build and install catnip
go install ./cmd/catnip
# with portaudio
go install ./cmd/catnip -tags portaudio
# with fftw3
go install ./cmd/catnip -tags fftw
# with both portaudio and fftw3
go install ./cmd/catnip -tags portaudio,fftw
run it
- use
catnip list-backendsto show available backends - use
catnip -b {backend} list-devicesto show available devices - use
catnip -b {backend} -d {device}to run - use the full device name - use
catnip -hfor information on several more customizations
question it
catnip?
Documentation
¶
Index ¶
Constants ¶
View Source
const MaxChannelCount = 2
View Source
const MaxSampleSize = 2048
Variables ¶
This section is empty.
Functions ¶
Types ¶
type CleanupFunc ¶ added in v1.7.0
type CleanupFunc func() error
type Config ¶
type Config struct {
// The name of the backend from the input package
Backend string
// The name of the device to pull data from
Device string
// The rate that samples are read
SampleRate float64
// The number of samples per batch
SampleSize int
// The number of channels to read data from
ChannelCount int
// The number of times per second to process data
ProcessRate int
// Merge multiple channels into a single stream
Combine bool
// testing. leave false
// Use threaded processor
UseThreaded bool
// Function to call when setting up the pipeline
SetupFunc SetupFunc
// Function to call when starting the pipeline
StartFunc StartFunc
// Function to call when cleaning up the pipeline
CleanupFunc CleanupFunc
// Where to send the data from the audio analysis
Output processor.Output
// Method to run on data before running fft
Windower window.Function
// Analyzer to run analysis on data
Analyzer dsp.Analyzer
// Smoother to run smoothing on output from Analyzer
Smoother dsp.Smoother
}
func NewZeroConfig ¶
func NewZeroConfig() Config
Source Files
Directories
¶
| Path | Synopsis |
|---|---|
|
cmd
|
|
|
Package dsp provides audio analysis
|
Package dsp provides audio analysis |
|
window
Package window provides Window Functions for singnal analysis
|
Package window provides Window Functions for singnal analysis |
|
Package fft provides generic abstractions around fourier transformers.
|
Package fft provides generic abstractions around fourier transformers. |
|
all
Package all imports all backends implemented by the input package.
|
Package all imports all backends implemented by the input package. |
|
common/execread
Package execread provides a shared struct that wraps around cmd.
|
Package execread provides a shared struct that wraps around cmd. |
|
portaudio/portaudio
Package portaudio contains modifications of CGO bindings for portaudio
|
Package portaudio contains modifications of CGO bindings for portaudio |
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