[LAU] LADSPA Plugins from ALSA,would like some help, please !

[bricolodu]

Hello,

Im trying to implement a kind of MAXXBASS plugin on an headless machine
(running in mono).
If it works, I would be happy to share it if someone is interrested.

However, to do so I need some help to better understand the LADSPA syntax.

Here are two example that I would like to implement :

*#1*
root at SheBe:~# analyseplugin tap_tubewarmth.so

Plugin Name: "TAP TubeWarmth"
Plugin Label: "tap_tubewarmth"
Plugin Unique ID: 2158
Maker: "Tom Szilagyi"
Copyright: "GPL"
Must Run Real-Time: No
Has activate() Function: No
Has deactivate() Function: No
Has run_adding() Function: Yes
Environment: Normal or Hard Real-Time
Ports:  "Drive" input, control, 0.1 to 10, default 2.575
        "Tape--Tube Blend" input, control, -10 to 10, default 10
        "Input" input, audio
        "Output" output, audio

*And my asound.conf is :*

pcm.WarmTube {
    type ladspa
    slave.pcm "plughw:0,0";
    path "/usr/lib/ladspa"
    channels 2
    plugins {
        0 {
            id 2158
            policy none
            input.bindings.0 "Input";
            output.bindings.0 "Output";
            input {
                controls [ 2.575 10 ]
        }
        1 {
            id 2158 
            policy none
            input.bindings.1 "Input";
            output.bindings.1 "Output";
            input {
                controls [ 2.575 10 ]
            }
        }
    }
}

That produce the following Error :
/root at SheBe:~# squeezelite -a 80:4:16:1
[21:58:35.206794] test_open:130 hwparam init error: Invalid argument
[21:58:35.208477] output_init_common:373 unable to open output device/


*#2*
root at SheBe:~# analyseplugin harmonic_gen_1220.so

Plugin Name: "Harmonic generator"
Plugin Label: "harmonicGen"
Plugin Unique ID: 1220
Maker: "Steve Harris <steve at plugin.org.uk>"
Copyright: "GPL"
Must Run Real-Time: No
Has activate() Function: Yes
Has deactivate() Function: No
Has run_adding() Function: Yes
Environment: Normal or Hard Real-Time
Ports:  "Fundamental magnitude" input, control, -1 to 1, default 1
        "2nd harmonic magnitude" input, control, -1 to 1, default 0
        "3rd harmonic magnitude" input, control, -1 to 1, default 0
        "4th harmonic magnitude" input, control, -1 to 1, default 0
        "5th harmonic magnitude" input, control, -1 to 1, default 0
        "6th harmonic magnitude" input, control, -1 to 1, default 0
        "7th harmonic magnitude" input, control, -1 to 1, default 0
        "8th harmonic magnitude" input, control, -1 to 1, default 0
        "9th harmonic magnitude" input, control, -1 to 1, default 0
        "10th harmonic magnitude" input, control, -1 to 1, default 0
        "Input" input, audio, -1 to 1
        "Output" output, audio, -1 to 1

*And my asound.conf is :*

pcm.overtone {
    type ladspa
    slave.pcm "plughw:0,0";
    path "/usr/lib/ladspa"
    channels 2
    plugins {
        0 {
            id 1220 # Overtone (Harmonic Generator)
            policy none                # Apply Overtone to channel 0
            input.bindings.1 "Input";
            output.bindings.1 "Output";
            input {
                controls [ 0 1 1 1 1 1 1 1 1 1 ]
            }
        }
        1 {
            id 1220 # Overtone (Harmonic Generator)
            policy none                # Apply Overtone to channel 1
            input.bindings.1 "Input";
            output.bindings.1 "Output";
            input {
                controls [ 0 1 1 1 1 1 1 1 1 1 ]
            }
        }
    }
}


That produce the same Error :
/root at SheBe:~# squeezelite -a 80:4:16:1
[21:58:35.206794] test_open:130 hwparam init error: Invalid argument
[21:58:35.208477] output_init_common:373 unable to open output device/



Note that I don't need control, although I can make it work from the regular
way with the pluequal and control Equal, but here, I want/need to implement
it directly from within my asound.conf

Thank you for your help !
Jean



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