# A sink that converts mono sources such as C64 SID or Amiga Tracker (rendered in mono)
# music to stereo using the Calf lv2 plugins.
#
# Settings are from http://marzen.de/Holger/stereo_width/
# Although designed for a different purpose, it enhances the old mono music in a plesent way.
#
# This sink requires the Calf lv2 plugins (Gentoo: media-plugins/calf Ubuntu, Debian: calf-plugins Arch: calf)
#
# Copy this file into a conf.d/ directory such as
# ~/.config/pipewire/filter-chain.conf.d/


context.modules = [
    { name = libpipewire-module-filter-chain
        flags = [ nofail ]
        args = {
            node.description = "Vintage Stereo Imager Sink"
            media.name       = "Vintage Stereo Imager Sink"
            filter.graph = {
                nodes = [
                    { name = copyL type = builtin label = copy }
                    { name = copyR type = builtin label = copy }
                    {
                        name    = mixL
                        type    = builtin
                        label   = mixer
                        control = {
                            "Gain 1" = 1.0
                            "Gain 2" = 1.0
                        }
                    }
                    {
                        name    = mixR
                        type    = builtin
                        label   = mixer
                        control = {
                            "Gain 1" = 1.0
                            "Gain 2" = 1.0
                        }
                    }
                    {
                        plugin  = "http://calf.sourceforge.net/plugins/Equalizer5Band"
                        name    = calf_eq5
                        label   = calf_eq5
                        type    = lv2
                        control = {
                            "bypass" = 0
                            "level_in" = 1
                            "level_out" = 1
                            "ls_active" = 1
                            "ls_level" = 0.0634076148271561
                            "ls_freq" = 100
                            "ls_q" = 0.707000017166138
                            "hs_active" = 1
                            "hs_level" = 0.2497229129076
                            "hs_freq" = 8009.14111328125
                            "hs_q" = 0.707000017166138
                            "p1_active" = 0
                            "p1_level" = 1
                            "p1_freq" = 250
                            "p1_q" = 1
                            "p2_active" = 0
                            "p2_level" = 1
                            "p2_freq" = 1000
                            "p2_q" = 1
                            "p3_active" = 0
                            "p3_level" = 1
                            "p3_freq" = 4000
                            "p3_q" = 1
                            "individuals" = 1
                            "zoom" = 0.25
                            "analyzer" = 1
                            "analyzer_mode" = 1
                        }
                    }
                    {
                        plugin  = "http://calf.sourceforge.net/plugins/VintageDelay"
                        name    = calf_delay
                        label   = calf_delay
                        type    = lv2
                        control = {
                            "on" = 1
                            "level_in" = 1
                            "level_out" = 1
                            "subdiv" = 1
                            "time_l" = 1
                            "time_r" = 1
                            "feedback" = 0
                            "amount" = 1.04536008834839
                            "mix_mode" = 0
                            "medium" = 0
                            "dry" = 0
                            "width" = 1
                            "fragmentation" = 0
                            "pbeats" = 4
                            "pfrag" = 4
                            "timing" = 1
                            "bpm" = 30
                            "ms" = 20
                            "hz" = 2
                        }
                    }
                    {
                        plugin  = "http://calf.sourceforge.net/plugins/StereoTools"
                        name    = calf_stereo
                        label   = calf_stereo
                        type    = lv2
                        control = {
                            "bypass" = 0
                            "level_in" = 1
                            "level_out" = 0.350624859333038
                            "balance_in" = 0
                            "balance_out" = 0
                            "softclip" = 0
                            "mutel" = 0
                            "muter" = 0
                            "phasel" = 0
                            "phaser" = 1
                            "mode" = 6
                            "slev" = 1
                            "sbal" = 0
                            "mlev" = 1
                            "mpan" = 0
                            "stereo_base" = 0
                            "delay" = 0
                            "sc_level" = 1
                            "stereo_phase" = 0
                        }
                    }
                ]
                links = [
                    { output = "copyL:Out" input = "mixL:In 1" }
                    { output = "copyR:Out" input = "mixR:In 1" }
                    { output = "copyL:Out" input = "calf_eq5:in_l" }
                    { output = "copyR:Out" input = "calf_eq5:in_r" }
                    { output = "calf_eq5:out_l" input = "calf_delay:in_l" }
                    { output = "calf_eq5:out_r" input = "calf_delay:in_r" }
                    { output = "calf_delay:out_l" input = "calf_stereo:in_l" }
                    { output = "calf_delay:out_r" input = "calf_stereo:in_r" }
                    { output = "calf_stereo:out_l" input = "mixL:In 2" }
                    { output = "calf_stereo:out_r" input = "mixR:In 2" }
                ]
                inputs  = [ "copyL:In" "copyR:In" ]
                outputs = [ "mixL:Out" "mixR:Out" ]
            }
            audio.channels = 2
            audio.position = [ FL FR ]
            capture.props = {
                node.name         = "effect_input.vintage_stereo_imager"
                media.class       = Audio/Sink
            }
            playback.props = {
                node.name         = "effect_output.vintage_stereo_imager"
                node.passive      = true
            }
        }
    }
]