64 lines
1,018 B
Go
64 lines
1,018 B
Go
package tta
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import (
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"io"
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)
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type tta_info struct {
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format uint32 // audio format
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nch uint32 // number of channels
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bps uint32 // bits per sample
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sps uint32 // samplerate (sps)
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samples uint32 // data length in samples
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}
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type tta_filter interface {
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Decode(*int32)
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Encode(*int32)
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}
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type tta_filter_compat struct {
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index int32
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error int32
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round int32
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shift int32
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qm [8]int32
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dx [24]int32
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dl [24]int32
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}
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type tta_filter_sse tta_filter_compat
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type tta_adapt struct {
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k0 uint32
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k1 uint32
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sum0 uint32
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sum1 uint32
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}
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func (rice *tta_adapt) init(k0, k1 uint32) {
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rice.k0 = k0
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rice.k1 = k1
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rice.sum0 = shift_16[k0]
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rice.sum1 = shift_16[k1]
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}
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type tta_codec struct {
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filter tta_filter
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rice tta_adapt
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prev int32
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}
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type tta_fifo struct {
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buffer [FIFO_BUFFER_SIZE]byte
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pos int32
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end int32
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bcount uint32 // count of bits in cache
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bcache uint32 // bit cache
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crc uint32
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count uint32
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io io.ReadWriteSeeker
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}
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type Callback func(uint32, uint32, uint32)
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