Ophestra
72a2601d74
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This removes the need for manual splitting. The understanding of the format is robust enough to allow this to happen anyway. Signed-off-by: Ophestra <cat@gensokyo.uk>
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
package pipewire_test
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import (
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_ "embed"
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"encoding/binary"
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"hakurei.app/internal/pipewire"
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)
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var (
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//go:embed testdata/pw-container-00-sendmsg
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samplePWContainer00 string
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//go:embed testdata/pw-container-01-recvmsg
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samplePWContainer01 string
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//go:embed testdata/pw-container-03-sendmsg
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samplePWContainer03 string
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//go:embed testdata/pw-container-04-recvmsg
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samplePWContainer04 string
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//go:embed testdata/pw-container-06-sendmsg
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samplePWContainer06 string
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//go:embed testdata/pw-container-07-recvmsg
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samplePWContainer07 string
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// samplePWContainer is a collection of messages from the pw-container sample.
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samplePWContainer = [...][][3][]byte{
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splitMessages(samplePWContainer00),
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splitMessages(samplePWContainer01),
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nil,
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splitMessages(samplePWContainer03),
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splitMessages(samplePWContainer04),
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nil,
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splitMessages(samplePWContainer06),
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splitMessages(samplePWContainer07),
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nil,
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}
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)
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// splitMessages splits concatenated messages into groups of
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// header, payload, footer of each individual message.
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// splitMessages panics on any decoding error.
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func splitMessages(iovec string) (messages [][3][]byte) {
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data := []byte(iovec)
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messages = make([][3][]byte, 0, 1<<7)
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var header pipewire.Header
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for len(data) != 0 {
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if err := header.UnmarshalBinary(data[:pipewire.SizeHeader]); err != nil {
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panic(err)
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}
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size := pipewire.SizePrefix + binary.NativeEndian.Uint32(data[pipewire.SizeHeader:])
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messages = append(messages, [3][]byte{
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data[:pipewire.SizeHeader],
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data[pipewire.SizeHeader : pipewire.SizeHeader+size],
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data[pipewire.SizeHeader+size : pipewire.SizeHeader+header.Size],
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})
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data = data[pipewire.SizeHeader+header.Size:]
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}
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return
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}
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