cava man page

Signed-off-by: Viktar Lukashonak <myxabeer@gmail.com>

man/waybar-cava.5.scd

@@ -0,0 +1,182 @@
+waybar-cava(5) "waybar-cava" "User Manual"
+
+# NAME
+
+cava
+
+# DESCRIPTION
+
+*cava* module for karlstav/cava project. See it on github: https://github.com/karlstav/cava.
+
+
+# FILES
+
+$XDG_CONFIG_HOME/waybar/config ++
+    Per user configuration file
+
+# ADDITIONAL FILES
+
+libcava lives in:
+
+. /usr/lib/libcava.so or /usr/lib64/libcava.so
+. /usr/lib/pkgconfig/cava.pc or /usr/lib64/pkgconfig/cava.pc
+. /usr/include/cava
+
+# CONFIGURATION
+
+[- *Option*
+:- *Typeof*
+:- *Default*
+:- *Description*
+|[ *cava_config*
+:[ string
+:[
+:< Path where cava configuration file is placed to
+|[ *framerate*
+:[ integer
+:[ 30
+:[ rames per second. Is used as a replacement for *interval*
+|[ *autosens*
+:[ integer
+:[ 1
+:[ Will attempt to decrease sensitivity if the bars peak
+|[ *sensitivity*
+:[ integer
+:[ 100
+:[ Manual sensitivity in %. It's recommended to be omitted when *autosens* = 1
+|[ *bars*
+:[ integer
+:[ 12
+:[ The number of bars
+|[ *lower_cutoff_freq*
+:[ long integer
+:[ 50
+:[ Lower cutoff frequencies for lowest bars the bandwidth of the visualizer
+|[ *higher_cutoff_freq*
+:[ long integer
+:[ 10000
+:[ Higher cutoff frequencies for highest bars the bandwidth of the visualizer
+|[ *sleep_timer*
+:[ integer
+:[ 5
+:[ Seconds with no input before cava main thread goes to sleep mode
+|[ *method*
+:[ string
+:[ pulse
+:[ Audio capturing method. Possible methods are: pipewire, pulse, alsa, fifo, sndio or shmem
+|[ *source*
+:[ string
+:[ auto
+:[ See cava configuration
+|[ *sample_rate*
+:[ long integer
+:[ 44100
+:[ See cava configuration
+|[ *sample_bits*
+:[ integer
+:[ 16
+:[ See cava configuration
+|[ *stereo*
+:[ bool
+:[ true
+:[ Visual channels
+|[ *reverse*
+:[ bool
+:[ false
+:[ Displays frequencies the other way around
+|[ *bar_delimiter*
+:[ integer
+:[ 0
+:[ Each bar is separated by a delimiter. Use decimal value in ascii table(i.e. 59 = ";"). 0 means no delimiter
+|[ *monstercat*
+:[ bool
+:[ false
+:[ Disables or enables the so-called "Monstercat smoothing" with of without "waves"
+|[ *waves*
+:[ bool
+:[ false
+:[ Disables or enables the so-called "Monstercat smoothing" with of without "waves"
+|[ *noise_reduction*
+:[ double
+:[ 0.77
+:[ Range between 0 - 1. The raw visualization is very noisy, this factor adjust the integral and gravity filters to keep the signal smooth. 1 - will be very slow and smooth, 0 - will be fast but noisy
+|[ *input_delay*
+:[ integer
+:[ 2
+:[ Sets the delay before fetching audio source thread start working. On author machine Waybar starts much faster then pipewire audio server, and without a little delay cava module fails due to pipewire is not ready
+|[ *ascii_max_range*
+:[ integer
+:[ 7
+:[ It's impossible to set it directly. The value is dictated by the number of icons in the array *format-icons*
+|[ *data_format*
+:[ string
+:[ asci
+:[ It's impossible to set it. Waybar sets it to = asci for internal needs
+|[ *raw_target*
+:[ string
+:[ /dev/stdout
+:[ It's impossible to set it. Waybar sets it to = /dev/stdout for internal needs
+
+Configuration can be provided as:
+- The only cava configuration file which is provided through *cava_config*. The rest configuration can be skipped
+- Without cava configuration file. In such case cava should be configured through provided list of the configuration option
+- Mix. When provided both And cava configuration file And configuration options. In such case waybar applies configuration file first then overrides particular options by the provided list of configuration options
+
+# ACTIONS
+
+[- *String*
+:- *Action*
+|[ *mode*
+:< Switch main cava thread and fetching audio source thread from/to pause/resume
+
+# DEPENDENCIES
+
+- iniparser
+- fftw3
+
+# SOLVING ISSUES
+
+. On start Waybar throws an exception "error while loading shared libraries: libcava.so: cannot open shared object file: No such file or directory".
+  It might happen when libcava for some reason hasn't been registered in the system. sudo ldconfig should help
+. Waybar is starting but cava module doesn't react on the music
+    1. In such case for at first need to make sure usual cava application is working as well
+    2. If so, need to comment all configuration options. Uncomment cava_config and provide the path to the working cava config
+    3. You might set too huge or too small input_delay. Try to setup to 4 seconds, restart waybar and check again 4 seconds past. Usual even on weak machines it should be enough
+    4. You might accidentally switched action mode to pause mode
+
+# RISING ISSUES
+
+For clear understanding: this module is a cava API's consumer. So for any bugs related to cava engine you should contact to Cava upstream(https://github.com/karlstav/cava) ++
+with the one Exception. Cava upstream doesn't provide cava as a shared library. For that this module author made a fork libcava(https://github.com/LukashonakV/cava). ++
+So the order is:
+. cava upstream
+. libcava upstream.
+In case when cava releases new version and you're wanna get it, it should be raised an issue to libcava(https://github.com/LukashonakV/cava) with title ++
+\[Bump\]x.x.x where x.x.x is cava release version.
+
+# EXAMPLES
+
+```
+"cava": {
+//        "cava_config": "$XDG_CONFIG_HOME/cava/cava.conf",
+        "framerate": 30,
+        "autosens": 1,
+//        "sensitivity": 100,
+        "bars": 14,
+        "lower_cutoff_freq": 50,
+        "higher_cutoff_freq": 10000,
+        "method": "pulse",
+        "source": "auto",
+        "stereo": true,
+        "reverse": false,
+        "bar_delimiter": 0,
+        "monstercat": false,
+        "waves": false,
+        "noise_reduction": 0.77,
+        "input_delay": 2,
+        "format-icons" : ["▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" ],
+        "actions": {
+                   "on-click-right": "mode"
+                   }
+    },
+```

man/waybar.5.scd.in

@@ -268,6 +268,7 @@ Valid options for the (optional) "orientation" property are: "horizontal", "vert
 - *waybar-backlight(5)*
 - *waybar-battery(5)*
 - *waybar-bluetooth(5)*
+- *waybar-cava(5)*
 - *waybar-clock(5)*
 - *waybar-cpu(5)*
 - *waybar-custom(5)*

meson.build

@@ -423,6 +423,7 @@ if scdoc.found()
         main_manpage_path,
         'waybar-backlight.5.scd',
         'waybar-battery.5.scd',
+        'waybar-cava.5.scd',
         'waybar-clock.5.scd',
         'waybar-cpu.5.scd',
         'waybar-custom.5.scd',