-
Notifications
You must be signed in to change notification settings - Fork 194
/
audio.go
97 lines (82 loc) · 2.12 KB
/
audio.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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
package track
import (
"go.uber.org/zap"
"m7s.live/engine/v4/codec"
. "m7s.live/engine/v4/common"
"m7s.live/engine/v4/util"
)
type Audio struct {
Media
CodecID codec.AudioCodecID
Channels byte
SampleSize byte
SizeLength int // 通常为13
IndexLength int
IndexDeltaLength int
AVCCHead []byte // 音频包在AVCC格式中,AAC会有两个字节,其他的只有一个字节
codec.AudioSpecificConfig
}
func (a *Audio) Attach() {
if err := a.Publisher.GetStream().AddTrack(a).Await(); err != nil {
a.Error("attach audio track failed", zap.Error(err))
} else {
a.Info("audio track attached", zap.Uint32("sample rate", a.SampleRate))
}
}
func (a *Audio) Detach() {
a.Publisher.GetStream().RemoveTrack(a)
}
func (a *Audio) GetName() string {
if a.Name == "" {
return a.CodecID.String()
}
return a.Name
}
func (a *Audio) GetCodec() codec.AudioCodecID {
return a.CodecID
}
func (av *Audio) WriteADTS(pts uint32, adts util.IBytes) {
}
func (av *Audio) WriteSequenceHead(sh []byte) error {
av.Media.WriteSequenceHead(sh)
return nil
}
func (av *Audio) Flush() {
if av.CodecID == codec.CodecID_AAC && av.Value.ADTS == nil {
item := av.BytesPool.Get(7)
av.ToADTS(av.Value.AUList.ByteLength, item.Value)
av.Value.ADTS = item
}
av.Media.Flush()
}
func (av *Audio) WriteRawBytes(pts uint32, raw util.IBytes) {
curValue := av.Value
curValue.BytesIn += raw.Len()
av.Value.AUList.Push(av.GetFromPool(raw))
av.generateTimestamp(pts)
av.Flush()
}
func (av *Audio) WriteAVCC(ts uint32, frame *util.BLL) {
av.Value.WriteAVCC(ts, frame)
av.generateTimestamp(ts * 90)
av.Flush()
}
func (a *Audio) CompleteAVCC(value *AVFrame) {
value.AVCC.Push(a.BytesPool.GetShell(a.AVCCHead))
value.AUList.Range(func(v *util.BLL) bool {
v.Range(func(v util.Buffer) bool {
value.AVCC.Push(a.BytesPool.GetShell(v))
return true
})
return true
})
}
func (a *Audio) CompleteRTP(value *AVFrame) {
a.PacketizeRTP(value.AUList.ToList()...)
}
func (a *Audio) Narrow() {
// if a.HistoryRing == nil && a.IDRing != nil {
// a.narrow(int(a.Value.Sequence - a.IDRing.Value.Sequence))
// }
a.AddIDR()
}