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/*
* Copyright (C) 2014 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package pulse
/*
#include "dde-pulse.h"
*/
import "C"
import "unsafe"
const (
VolumeMax = C.PA_VOLUME_MAX * 1.0 / C.PA_VOLUME_NORM
VolumeUIMax = 99957.0 / C.PA_VOLUME_NORM // C.pa_sw_volume_from_dB(11.0)
)
const (
AvailableTypeUnknow int = iota
AvailableTypeNo
AvailableTypeYes
)
func toProplist(c *C.pa_proplist) map[string]string {
var ret = make(map[string]string)
var state unsafe.Pointer
for key := C.pa_proplist_iterate(c, &state); key != nil; {
ret[C.GoString(key)] = C.GoString(C.pa_proplist_gets(c, key))
key = C.pa_proplist_iterate(c, &state)
}
return ret
}
type ProfileInfo2 struct {
Name string
Description string
Priority uint32
NSinks uint32
NSources uint32
Available int
}
type ProfileInfos2 []ProfileInfo2
type PortInfo struct {
Name string
Description string
Priority uint32
Available int // 0: Unknow, 1: No, 2: Yes
}
type PortInfos []PortInfo
func (infos PortInfos) Get(name string) *PortInfo {
for _, info := range infos {
if info.Name == name {
return &info
}
}
return nil
}
func (infos ProfileInfos2) Exists(name string) bool {
for _, info := range infos {
if info.Name == name {
return true
}
}
return false
}
func (infos ProfileInfos2) SelectProfile() string {
if len(infos) == 0 {
return ""
}
profile := infos.selectByAvailable(AvailableTypeYes)
if len(profile.Name) != 0 {
return profile.Name
}
profile = infos.selectByAvailable(AvailableTypeUnknow)
if len(profile.Name) != 0 {
return profile.Name
}
profile = infos.selectByAvailable(AvailableTypeNo)
return profile.Name
}
func (infos ProfileInfos2) Len() int {
return len(infos)
}
func (infos ProfileInfos2) Less(i, j int) bool {
return infos[i].Priority > infos[j].Priority
}
func (infos ProfileInfos2) Swap(i, j int) {
infos[i], infos[j] = infos[j], infos[i]
}
func (infos ProfileInfos2) selectByAvailable(available int) ProfileInfo2 {
var profile ProfileInfo2
for _, info := range infos {
if info.Available != available {
continue
}
if profile.Priority < info.Priority {
profile = info
}
}
return profile
}
func toBool(v C.int) bool {
if int(v) == 0 {
return false
} else {
return true
}
}
type Volume struct {
paVolume C.pa_volume_t
}
func (v Volume) ToPercent() float64 {
return float64(v.paVolume) / C.PA_VOLUME_NORM
}
func (v Volume) ToLiner() float64 {
return float64(C.pa_sw_volume_to_linear(C.pa_volume_t(v.paVolume)))
}
func (v Volume) TodB() float64 {
return float64(C.pa_sw_volume_to_dB(C.pa_volume_t(v.paVolume)))
}
type CVolume struct {
core C.pa_cvolume
}
func (cv CVolume) Avg() float64 {
return float64(C.pa_cvolume_max(&cv.core)) / C.PA_VOLUME_NORM
}
func (cv CVolume) Balance(cmap ChannelMap) float64 {
return float64(C.pa_cvolume_get_balance(&cv.core, &cmap.core))
}
func (cv CVolume) Fade(cmap ChannelMap) float64 {
return float64(C.pa_cvolume_get_fade(&cv.core, &cmap.core))
}
func (cv CVolume) SetAvg(v float64) CVolume {
C.pa_cvolume_scale(&cv.core, C.pa_volume_t((C.double(v) * C.PA_VOLUME_NORM)))
return cv
}
func (cv CVolume) SetBalance(cm ChannelMap, balance float64) CVolume {
C.pa_cvolume_set_balance(&cv.core, &cm.core, C.float(balance))
return cv
}
func (cv CVolume) SetFade(cm ChannelMap, fade float64) CVolume {
C.pa_cvolume_set_fade(&cv.core, &cm.core, C.float(fade))
return cv
}
type ChannelPosition int32
type ChannelMap struct {
core C.pa_channel_map
}
func (cm ChannelMap) CanBalance() bool {
if C.pa_channel_map_can_balance(&cm.core) == 0 {
return false
} else {
return true
}
}
func (cm ChannelMap) CanFade() bool {
if C.pa_channel_map_can_fade(&cm.core) == 0 {
return false
} else {
return true
}
}
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