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NoiseTorch/vendor/github.com/lawl/pulseaudio/module.go

73 lines
2.0 KiB
Go

package pulseaudio
import "io"
// Module contains information about a pulseaudio module
type Module struct {
Index uint32
Name string
Argument string
NUsed uint32
PropList map[string]string
}
// ReadFrom deserializes a PA module packet
func (s *Module) ReadFrom(r io.Reader) (int64, error) {
err := bread(r,
uint32Tag, &s.Index,
stringTag, &s.Name,
stringTag, &s.Argument,
uint32Tag, &s.NUsed,
&s.PropList)
if err != nil {
return 0, err
}
return 0, nil
}
// ModuleList queries pulseaudio for a list of loaded modules and returns an array
func (c *Client) ModuleList() ([]Module, error) {
b, err := c.request(commandGetModuleInfoList)
if err != nil {
return nil, err
}
var modules []Module
for b.Len() > 0 {
var module Module
err = bread(b, &module)
if err != nil {
return nil, err
}
modules = append(modules, module)
}
return modules, nil
}
// UnloadModule requests pulseaudio to unload the module with the specified index.
// The index can be found e.g. with ModuleList()
func (c *Client) UnloadModule(index uint32) error {
_, err := c.request(commandUnloadModule,
uint32Tag, index)
return err
}
// LoadModule requests pulseaudio to load the module with the specified name and argument string.
// More information on how to supply these can be found in the pulseaudio documentation:
// https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#loadablemodules
// e.g. LoadModule("module-alsa-sink", "sink_name=headphones sink_properties=device.description=Headphones")
// would be equivalent to the pulse config directive: load-module module-alsa-sink sink_name=headphones sink_properties=device.description=Headphones
// Returns the index of the loaded module or an error
func (c *Client) LoadModule(name string, argument string) (index uint32, err error) {
var idx uint32
r, err := c.request(commandLoadModule,
stringTag, []byte(name), byte(0), stringTag, []byte(argument), byte(0))
if err != nil {
return 0, err
}
err = bread(r, uint32Tag, &idx)
return idx, err
}