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audio: Reduce making a slice at a player's read
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parent
3fb304e5a8
commit
0bf6eee605
@ -229,9 +229,10 @@ type playerImpl struct {
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closedExplicitly bool
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closedExplicitly bool
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isLoopActive bool
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isLoopActive bool
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buf []byte
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buf []byte
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pos int64
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readbuf []byte
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volume float64
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pos int64
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volume float64
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m sync.Mutex
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m sync.Mutex
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}
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}
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@ -412,8 +413,10 @@ func (p *playerImpl) read() ([]byte, bool) {
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<-p.context.semaphore
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<-p.context.semaphore
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}()
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}()
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newBuf := make([]byte, bufSize-len(p.buf))
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if p.readbuf == nil {
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n, err := p.src.Read(newBuf)
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p.readbuf = make([]byte, bufSize)
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}
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n, err := p.src.Read(p.readbuf[:bufSize-len(p.buf)])
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if err != nil {
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if err != nil {
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if err != io.EOF {
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if err != io.EOF {
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p.context.setError(err)
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p.context.setError(err)
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@ -423,7 +426,7 @@ func (p *playerImpl) read() ([]byte, bool) {
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return nil, false
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return nil, false
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}
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}
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}
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}
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buf := append(p.buf, newBuf[:n]...)
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buf := append(p.buf, p.readbuf[:n]...)
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n2 := len(buf) - len(buf)%bytesPerSample
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n2 := len(buf) - len(buf)%bytesPerSample
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buf, p.buf = buf[:n2], buf[n2:]
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buf, p.buf = buf[:n2], buf[n2:]
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