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39 lines
839 B
Go
39 lines
839 B
Go
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package meta
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import (
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"encoding/binary"
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"io/ioutil"
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)
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// Application contains third party application specific data.
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//
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// ref: https://www.xiph.org/flac/format.html#metadata_block_application
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type Application struct {
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// Registered application ID.
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//
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// ref: https://www.xiph.org/flac/id.html
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ID uint32
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// Application data.
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Data []byte
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}
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// parseApplication reads and parses the body of an Application metadata block.
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func (block *Block) parseApplication() error {
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// 32 bits: ID.
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app := new(Application)
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block.Body = app
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err := binary.Read(block.lr, binary.BigEndian, &app.ID)
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if err != nil {
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return unexpected(err)
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}
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// Check if the Application block only contains an ID.
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if block.Length == 4 {
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return nil
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}
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// (block length)-4 bytes: Data.
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app.Data, err = ioutil.ReadAll(block.lr)
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return unexpected(err)
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}
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