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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 "sync"
var sourceMeterCBs = make(map[uint32]func(float64))
var sourceMeterLock sync.RWMutex
type SourceMeter struct {
core *C.pa_stream
sourceIndex uint32
ctx *Context
}
func NewSourceMeter(c *Context, idx uint32) *SourceMeter {
core := C.createMonitorStreamForSource(c.loop, c.ctx, C.uint32_t(idx), 0, 0)
return &SourceMeter{
core: core,
sourceIndex: idx,
ctx: c,
}
}
func (s *SourceMeter) Destroy() {
sourceMeterLock.Lock()
delete(sourceMeterCBs, s.sourceIndex)
sourceMeterLock.Unlock()
s.ctx.safeDo(func() {
C.pa_stream_disconnect(s.core)
C.pa_stream_unref(s.core)
})
}
func (s *SourceMeter) ConnectChanged(cb func(v float64)) {
sourceMeterLock.Lock()
sourceMeterCBs[s.sourceIndex] = cb
sourceMeterLock.Unlock()
}
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