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package m3u8
import (
"fmt"
"strconv"
"strings"
)
// ByteRange represents sub range of a resource
type ByteRange struct {
Length *int
Start *int
}
// NewByteRange parses a text line in playlist file and returns a *ByteRange
func NewByteRange(text string) (*ByteRange, error) {
if text == "" {
return nil, nil
}
values := strings.Split(text, "@")
lengthValue, err := strconv.Atoi(values[0])
if err != nil {
return nil, err
}
br := ByteRange{Length: &lengthValue}
if len(values) >= 2 {
startValue, err := strconv.Atoi(values[1])
if err != nil {
return &br, err
}
br.Start = &startValue
}
return &br, nil
}
func (br *ByteRange) String() string {
if br.Start == nil {
return fmt.Sprintf("%d", *br.Length)
}
return fmt.Sprintf("%d@%d", *br.Length, *br.Start)
}
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