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audio: Fix buffer size calculation

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This commit is contained in:
Hajime Hoshi 2015-06-14 03:50:29 +09:00
parent 564248641b
commit cba1066b0f
1 changed files with 5 additions and 7 deletions
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12
exp/audio/internal/audio.go
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@ -96,11 +96,7 @@ func Queue(channel int, data []byte) {
func Tick() {
for _, ch := range channels {
if 0 < len(ch.buffer) {
ch.nextInsertionPosition += SampleRate * 4 / 60
} else {
ch.nextInsertionPosition = 0
}
ch.nextInsertionPosition += SampleRate * 4 / 60
}
}
@ -140,11 +136,13 @@ func loadChannelBuffer(channel int, bufferSize int) []byte {
ch := channels[channel]
length := min(len(ch.buffer), bufferSize)
input := ch.buffer[:length]
ch.nextInsertionPosition -= length
ch.buffer = ch.buffer[length:]
ch.nextInsertionPosition -= bufferSize
if ch.nextInsertionPosition < 0 {
ch.nextInsertionPosition = 0
}
ch.buffer = ch.buffer[length:]
r = input
})
return r