-
Notifications
You must be signed in to change notification settings - Fork 0
/
control.go
69 lines (54 loc) · 1.57 KB
/
control.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
package m3u8
import (
"fmt"
"strings"
"github.com/pkg/errors"
)
// ServerControl indicate support for features such as Blocking Playlist Reload and Playlist Delta Updates
type ServerControlSegment struct {
CanBlockReload bool
CanSkipUntil float64
HoldBack float64
PartHoldBack float64
}
// New server control segment
func NewServerControl(line string) (*ServerControlSegment, error) {
item := parseLine(line[len(ExtServerControl+":"):])
canblock, err := extractBool(item, CANBLOCKRELOAD)
if err != nil {
return nil, errors.Wrap(err, "extractBool err")
}
until, err := extractFloat64(item, CANSKIPUNTIL)
if err != nil {
return nil, errors.Wrap(err, "extractFloat64 err")
}
holdback, err := extractFloat64(item, HOLDBACK)
if err != nil {
return nil, errors.Wrap(err, "extractFloat64 err")
}
parthb, err := extractFloat64(item, PARTHOLDBACK)
if err != nil {
return nil, errors.Wrap(err, "extractFloat64 err")
}
return &ServerControlSegment{
CanBlockReload: canblock,
CanSkipUntil: until,
HoldBack: holdback,
PartHoldBack: parthb,
}, nil
}
// segment to string
func (ss *ServerControlSegment) String() string {
var s []string
s = append(s, fmt.Sprintf("%s=YES", CANBLOCKRELOAD))
if ss.PartHoldBack != 0 {
s = append(s, fmt.Sprintf("%s=%v", PARTHOLDBACK, ss.PartHoldBack))
}
if ss.CanSkipUntil != 0 {
s = append(s, fmt.Sprintf("%s=%v", CANSKIPUNTIL, ss.CanSkipUntil))
}
if ss.HoldBack != 0 {
s = append(s, fmt.Sprintf("%s=%v", HOLDBACK, ss.HoldBack))
}
return fmt.Sprintf("%s:%s", ExtServerControl, strings.Join(s, ","))
}