init: public

modules/cmd/media/cava/config/config

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+## Configuration file for CAVA. Default values are commented out. Use either ';' or '#' for commenting.
+
+
+[general]
+
+# Smoothing mode. Can be 'normal', 'scientific' or 'waves'.
+mode = normal
+
+# Accepts only non-negative values.
+framerate = 60
+
+# 'autosens' will attempt to decrease sensitivity if the bars peak. 1 = on, 0 = off
+# 'overshoot' allows bars to overshoot (in % of terminal height) without initiating autosens.
+; autosens = 1
+; overshoot = 20
+
+# Manual sensitivity in %. Autosens must be turned off for this to take effect.
+# 200 means double height. Accepts only non-negative values.
+; sensitivity = 100
+
+# The number of bars (0-200). 0 sets it to auto (fill up console).
+# Bars' width and space between bars in number of characters.
+bars = 0
+bar_width = 5
+bar_spacing = 1
+
+# Lower and higher cutoff frequencies for lowest and highest bars
+# the bandwidth of the visualizer.
+# Note: there is a minimum total bandwidth of 43Mhz x number of bars.
+# Cava will automatically increase the higher cutoff if a too low band is specified.
+; lower_cutoff_freq = 50
+; higher_cutoff_freq = 10000
+
+
+
+[input]
+
+# Audio capturing method. Possible methods are: 'pulse', 'alsa' or 'fifo'.
+# Defaults to 'pulse', 'alsa' or 'fifo', in that order, dependent on what support cava was built with.
+#
+# All input methods uses the same config variable 'source'
+# to define where it should get the audio.
+#
+# For pulseaudio 'source' will be the source. Default: 'auto', which uses the monitor source of the default sink
+# (all pulseaudio sinks(outputs) have 'monitor' sources(inputs) associated with them).
+#
+# For alsa 'source' will be the capture device.
+# For fifo 'source' will be the path to fifo-file.
+method = pulse
+source = auto
+
+; method = alsa
+; source = hw:Loopback,1
+
+; method = fifo
+; source = /tmp/mpd.fifo
+
+
+
+[output]
+
+# Ouput method. Can be 'ncurses', 'noncurses' or 'raw'.
+# 'noncurses' is for systems that does not suport ncurses.
+# 'raw' is a 16 bit data stream of the bar heights that can be used to send to other applications.
+# 'raw' defaults to 200 bars, which can be adjusted in the 'bars' option above.
+method = ncurses
+
+# Visual styles. Can be 'stereo' or 'mono'.
+# 'stereo' mirrors both channels with low frequencies in center.
+# 'mono' averages both channels and outputs left to right lowest to highest frequencies.
+style = mono
+
+# Raw output target. A fifo will be created if target does not exist.
+; raw_target = /dev/stdout
+
+# Raw data format. Can be 'binary' or 'ascii'.
+; data_format = binary
+
+# Binary bit format, can be '8bit' (0-255) or '16bit' (0-65530).
+; bit_format = 16bit
+
+# Ascii max value. In 'ascii' mode range will run from 0 to value specified here
+; ascii_max_range = 1000
+
+# Ascii delimiters. In ascii format each bar and frame is separated by a delimiters.
+# Use decimal value in ascii table (i.e. 59 = ';' and 10 = '\n' (line feed)).
+; bar_delimiter = 59
+; frame_delimiter = 10
+
+
+
+# [color]
+
+# # Colors can be one of seven predefined: black, blue, cyan, green, magenta, red, white, yellow.
+# # Or defined by hex code '#xxxxxx' (hex code must be within ''). User defined colors requires a
+# # terminal that can change color definitions such as Gnome-terminal or rxvt.
+# ; background = black
+# ; foreground = cyan
+
+# # Gradient mode, only hex defined colors are supported, background must also be defined in hex
+# # or remain commented out. 1 = on, 0 = off. Warning: for certain terminal emulators cava will
+# # not able to restore color definitions on exit, simply restart your terminal to restore colors.
+# gradient = 1
+# gradient_color_1 = '#0099ff'
+# gradient_color_2 = '#ff3399'
+
+
+
+[smoothing]
+
+# Multiplier for the integral smoothing calculations. Takes values from 0-0.99.
+# Higher values means smoother, but less precise. Set to 0 to disable.
+; integral = 0.7
+
+# Disables or enables the so-called "Monstercat smoothing". Set to 0 to disable.
+; monstercat = 1
+; waves = 1
+
+# Set gravity multiplier for "drop off". Higher values means bars will drop faster.
+# Accepts only non-negative values. 0.5 means half gravity, 2 means double. Set to 0 to disable "drop off".
+; gravity = 2
+
+
+# In bar height, bars that would have been lower that this will not be drawn.
+; ignore = 0
+
+
+[eq]
+
+# This one is tricky. You can have as much keys as you want.
+# Remember to uncomment more then one key! More keys = more precision.
+# Look at readme.md on github for further explanations and examples.
+#; 1 = 1 # bass
+#; 2 = 1
+#; 3 = 1 # midtone
+#; 4 = 1
+#; 5 = 1 # treble
+1=1
+2=1
+3=2
+4=1
+5=1
+
+[color]
+
+#background = '#191724'
+gradient = 1
+gradient_count = 6
+gradient_color_1 = '#31748f'
+gradient_color_2 = '#9ccfd8'
+gradient_color_3 = '#c4a7e7'
+gradient_color_4 = '#ebbcba'
+gradient_color_5 = '#f6c177'
+gradient_color_6 = '#eb6f92'
+
+[color]
+
+gradient = 1
+
+gradient_color_1 = '#94e2d5'
+gradient_color_2 = '#89dceb'
+gradient_color_3 = '#74c7ec'
+gradient_color_4 = '#89b4fa'
+gradient_color_5 = '#cba6f7'
+gradient_color_6 = '#f5c2e7'
+gradient_color_7 = '#eba0ac'
+gradient_color_8 = '#f38ba8'

modules/cmd/media/cava/config/config-applet

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+## Configuration file for CAVA. Default values are commented out. Use either ';' or '#' for commenting.
+
+
+[general]
+
+# Smoothing mode. Can be 'normal', 'scientific' or 'waves'.
+mode = normal
+
+# Accepts only non-negative values.
+framerate = 60
+
+# 'autosens' will attempt to decrease sensitivity if the bars peak. 1 = on, 0 = off
+# 'overshoot' allows bars to overshoot (in % of terminal height) without initiating autosens.
+; autosens = 1
+; overshoot = 20
+
+# Manual sensitivity in %. Autosens must be turned off for this to take effect.
+# 200 means double height. Accepts only non-negative values.
+; sensitivity = 100
+
+# The number of bars (0-200). 0 sets it to auto (fill up console).
+# Bars' width and space between bars in number of characters.
+bars = 0
+bar_width = 2
+bar_spacing = 1
+
+# Lower and higher cutoff frequencies for lowest and highest bars
+# the bandwidth of the visualizer.
+# Note: there is a minimum total bandwidth of 43Mhz x number of bars.
+# Cava will automatically increase the higher cutoff if a too low band is specified.
+; lower_cutoff_freq = 50
+; higher_cutoff_freq = 10000
+
+
+
+[input]
+
+# Audio capturing method. Possible methods are: 'pulse', 'alsa' or 'fifo'.
+# Defaults to 'pulse', 'alsa' or 'fifo', in that order, dependent on what support cava was built with.
+#
+# All input methods uses the same config variable 'source'
+# to define where it should get the audio.
+#
+# For pulseaudio 'source' will be the source. Default: 'auto', which uses the monitor source of the default sink
+# (all pulseaudio sinks(outputs) have 'monitor' sources(inputs) associated with them).
+#
+# For alsa 'source' will be the capture device.
+# For fifo 'source' will be the path to fifo-file.
+method = pulse
+source = auto
+
+; method = alsa
+; source = hw:Loopback,1
+
+; method = fifo
+; source = /tmp/mpd.fifo
+
+
+
+[output]
+
+# Ouput method. Can be 'ncurses', 'noncurses' or 'raw'.
+# 'noncurses' is for systems that does not suport ncurses.
+# 'raw' is a 16 bit data stream of the bar heights that can be used to send to other applications.
+# 'raw' defaults to 200 bars, which can be adjusted in the 'bars' option above.
+method = ncurses
+
+# Visual styles. Can be 'stereo' or 'mono'.
+# 'stereo' mirrors both channels with low frequencies in center.
+# 'mono' averages both channels and outputs left to right lowest to highest frequencies.
+style = mono
+
+# Raw output target. A fifo will be created if target does not exist.
+; raw_target = /dev/stdout
+
+# Raw data format. Can be 'binary' or 'ascii'.
+; data_format = binary
+
+# Binary bit format, can be '8bit' (0-255) or '16bit' (0-65530).
+; bit_format = 16bit
+
+# Ascii max value. In 'ascii' mode range will run from 0 to value specified here
+; ascii_max_range = 1000
+
+# Ascii delimiters. In ascii format each bar and frame is separated by a delimiters.
+# Use decimal value in ascii table (i.e. 59 = ';' and 10 = '\n' (line feed)).
+; bar_delimiter = 59
+; frame_delimiter = 10
+
+
+
+# [color]
+
+# # Colors can be one of seven predefined: black, blue, cyan, green, magenta, red, white, yellow.
+# # Or defined by hex code '#xxxxxx' (hex code must be within ''). User defined colors requires a
+# # terminal that can change color definitions such as Gnome-terminal or rxvt.
+# ; background = black
+# ; foreground = cyan
+
+# # Gradient mode, only hex defined colors are supported, background must also be defined in hex
+# # or remain commented out. 1 = on, 0 = off. Warning: for certain terminal emulators cava will
+# # not able to restore color definitions on exit, simply restart your terminal to restore colors.
+# gradient = 1
+# gradient_color_1 = '#0099ff'
+# gradient_color_2 = '#ff3399'
+
+
+
+[smoothing]
+
+# Multiplier for the integral smoothing calculations. Takes values from 0-0.99.
+# Higher values means smoother, but less precise. Set to 0 to disable.
+; integral = 0.7
+
+# Disables or enables the so-called "Monstercat smoothing". Set to 0 to disable.
+; monstercat = 1
+; waves = 1
+
+# Set gravity multiplier for "drop off". Higher values means bars will drop faster.
+# Accepts only non-negative values. 0.5 means half gravity, 2 means double. Set to 0 to disable "drop off".
+; gravity = 1
+
+
+# In bar height, bars that would have been lower that this will not be drawn.
+; ignore = 0
+
+
+[eq]
+
+# This one is tricky. You can have as much keys as you want.
+# Remember to uncomment more then one key! More keys = more precision.
+# Look at readme.md on github for further explanations and examples.
+#; 1 = 1 # bass
+#; 2 = 1
+#; 3 = 1 # midtone
+#; 4 = 1
+#; 5 = 1 # treble
+1=1
+2=1
+3=2
+4=1
+5=1
+
+[color]
+
+#background = '#191724'
+gradient = 1
+gradient_count = 6
+gradient_color_1 = '#31748f'
+gradient_color_2 = '#9ccfd8'
+gradient_color_3 = '#c4a7e7'
+gradient_color_4 = '#ebbcba'
+gradient_color_5 = '#f6c177'
+gradient_color_6 = '#eb6f92'
+
+[color]
+
+gradient = 1
+
+gradient_color_1 = '#94e2d5'
+gradient_color_2 = '#89dceb'
+gradient_color_3 = '#74c7ec'
+gradient_color_4 = '#89b4fa'
+gradient_color_5 = '#cba6f7'
+gradient_color_6 = '#f5c2e7'
+gradient_color_7 = '#eba0ac'
+gradient_color_8 = '#f38ba8'

modules/cmd/media/cava/config/shaders/bar_spectrum.frag

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+#version 330
+
+in vec2 fragCoord;
+out vec4 fragColor;
+
+// bar values. defaults to left channels first (low to high), then right (high to low).
+uniform float bars[512];
+
+uniform int bars_count;    // number of bars (left + right) (configurable)
+uniform int bar_width;    // bar width (configurable), not used here
+uniform int bar_spacing;    // space bewteen bars (configurable)
+
+uniform vec3 u_resolution; // window resolution
+
+//colors, configurable in cava config file (r,g,b) (0.0 - 1.0)
+uniform vec3 bg_color; // background color
+uniform vec3 fg_color; // foreground color
+
+uniform int gradient_count;
+uniform vec3 gradient_colors[8]; // gradient colors
+
+vec3 normalize_C(float y,vec3 col_1, vec3 col_2, float y_min, float y_max)
+{
+    //create color based on fraction of this color and next color
+    float yr = (y - y_min) / (y_max - y_min);
+    return col_1 * (1.0 - yr) + col_2 * yr;
+}
+
+void main()
+{
+    // find which bar to use based on where we are on the x axis
+    float x = u_resolution.x * fragCoord.x;
+    int bar = int(bars_count * fragCoord.x);
+
+    //calculate a bar size
+    float bar_size = u_resolution.x / bars_count;
+
+    //the y coordinate and bar values are the same
+    float y =  bars[bar];
+
+    // make sure there is a thin line at bottom
+    if (y * u_resolution.y < 1.0)
+    {
+      y = 1.0 / u_resolution.y;
+    }
+
+    //draw the bar up to current height
+    if (y > fragCoord.y)
+    {
+        //make some space between bars basen on settings
+        if (x > (bar + 1) * (bar_size) - bar_spacing)
+        {
+            fragColor = vec4(bg_color,1.0);
+        }
+        else
+        {
+            if (gradient_count == 0)
+            {
+                fragColor = vec4(fg_color,1.0);
+            }
+            else
+            {
+                //find which color in the configured gradient we are at
+                int color = int((gradient_count - 1) * fragCoord.y);
+
+                //find where on y this and next color is supposed to be
+                float y_min = color / (gradient_count - 1.0);
+                float y_max = (color + 1.0) / (gradient_count - 1.0);
+
+                //make color
+                fragColor = vec4(normalize_C(fragCoord.y, gradient_colors[color], gradient_colors[color + 1], y_min, y_max), 1.0);
+            }
+        }
+    }
+    else
+    {
+        fragColor = vec4(bg_color,1.0);
+    }
+}

modules/cmd/media/cava/config/shaders/normalized_bars.frag

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+#version 330
+
+in vec2 fragCoord;
+out vec4 fragColor;
+
+// bar values. defaults to left channels first (low to high), then right (high to low).
+uniform float bars[512];
+
+uniform int bars_count;    // number of bars (left + right) (configurable)
+
+uniform vec3 u_resolution; // window resolution, not used here
+
+//colors, configurable in cava config file
+uniform vec3 bg_color; // background color(r,g,b) (0.0 - 1.0), not used here
+uniform vec3 fg_color; // foreground color, not used here
+
+float normalize_C(float x, float x_min, float x_max, float r_min, float r_max )
+{
+	float xr;
+	xr = (r_max-r_min) * (x - x_min) / (x_max - x_min) + r_min;
+	return xr;
+}
+
+void main()
+{
+    // find which bar to use based on where we are on the x axis
+    int bar = int(bars_count * fragCoord.x);
+
+    // create a normal along the y axis based on the bar height
+    float x = normalize_C(fragCoord.y, 1.0, 0.0, 0.0, bars[bar]);
+
+    // set color
+    fragColor.r=fg_color.x*x;
+    fragColor.g=fg_color.y*x;
+    fragColor.b=fg_color.z*x;
+    fragColor.a=1.0;
+
+}

modules/cmd/media/cava/config/shaders/northern_lights.frag

@@ -0,0 +1,34 @@
+#version 330
+
+in vec2 fragCoord;
+out vec4 fragColor;
+
+// bar values. defaults to left channels first (low to high), then right (high to low).
+uniform float bars[512];
+
+uniform int bars_count;    // number of bars (left + right) (configurable)
+
+uniform vec3 u_resolution; // window resolution, not used here
+
+//colors, configurable in cava config file
+uniform vec3 bg_color; // background color(r,g,b) (0.0 - 1.0), not used here
+uniform vec3 fg_color; // foreground color, not used here
+
+void main()
+{
+    // find which bar to use based on where we are on the x axis
+    int bar = int(bars_count * fragCoord.x);
+
+    float bar_y = 1.0 - abs((fragCoord.y - 0.5)) * 2.0;
+    float y = (bars[bar]) * bar_y;
+
+    float bar_x = (fragCoord.x - float(bar) / float(bars_count)) * bars_count;
+    float bar_r = 1.0 - abs((bar_x - 0.5)) * 2;
+
+    bar_r = bar_r * bar_r * 2;
+
+    // set color
+    fragColor.r = fg_color.x * y * bar_r;
+    fragColor.g = fg_color.y * y * bar_r;
+    fragColor.b = fg_color.z * y * bar_r;
+}

modules/cmd/media/cava/config/shaders/pass_through.vert

@@ -0,0 +1,14 @@
+#version 330
+
+
+// Input vertex data, different for all executions of this shader.
+layout(location = 0) in vec3 vertexPosition_modelspace;
+
+// Output data ; will be interpolated for each fragment.
+out vec2 fragCoord;
+
+void main()
+{
+    gl_Position =  vec4(vertexPosition_modelspace,1);
+    fragCoord  = (vertexPosition_modelspace.xy+vec2(1,1))/2.0;
+}

modules/cmd/media/cava/default.nix

@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+lib.my.makeHomePackageConfig {
+  inherit config pkgs;
+  packageName = "cava";
+  packagePath = [ "cava" ];
+  optionPath = [
+    "cmd"
+    "media"
+    "cava"
+  ];
+  extraConfig = {
+    my.home.xdg.configFile."cava" = {
+      source = ./config;
+      recursive = true;
+    };
+  };
+}