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audio: More narrow critical section

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This commit is contained in:
Hajime Hoshi 2017-06-04 04:37:59 +09:00
parent 7ad82dab44
commit 17d6ea16de
1 changed files with 7 additions and 7 deletions
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14
audio/audio.go
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@ -381,21 +381,21 @@ func (p *Player) Close() error {
}
func (p *Player) readToBuffer(length int) error {
p.srcM.Lock()
p.m.Lock()
bb := make([]byte, length)
p.srcM.Lock()
n, err := p.src.Read(bb)
if 0 < n {
p.buf = append(p.buf, bb[:n]...)
}
p.m.Unlock()
p.srcM.Unlock()
if 0 < n {
p.m.Lock()
p.buf = append(p.buf, bb[:n]...)
p.m.Unlock()
}
return err
}
func (p *Player) bufferToInt16(lengthInBytes int) []int16 {
p.m.RLock()
r := make([]int16, lengthInBytes/2)
p.m.RLock()
for i := 0; i < lengthInBytes/2; i++ {
r[i] = int16(p.buf[2*i]) | (int16(p.buf[2*i+1]) << 8)
r[i] = int16(float64(r[i]) * p.volume)