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62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package avformat
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import (
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"sync"
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)
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var (
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SendPacketPool = &sync.Pool{
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New: func() interface{} {
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return new(SendPacket)
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},
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}
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)
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// Video or Audio
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type AVPacket struct {
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Timestamp uint32
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Type byte //8 audio,9 video
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IsSequence bool //序列帧
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IsKeyFrame bool//是否为关键帧
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Payload []byte
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Number int //编号，audio和video独立编号
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}
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func (av *AVPacket) ADTS2ASC() (tagPacket *AVPacket) {
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tagPacket = NewAVPacket(FLV_TAG_TYPE_AUDIO)
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tagPacket.Payload = ADTSToAudioSpecificConfig(av.Payload)
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tagPacket.IsSequence = true
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ADTSLength := 7 + ((1 - int(av.Payload[1]&1)) << 1)
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if len(av.Payload) > ADTSLength {
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av.Payload[0] = 0xAF
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av.Payload[1] = 0x01 //raw AAC
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copy(av.Payload[2:], av.Payload[ADTSLength:])
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av.Payload = av.Payload[:(len(av.Payload) - ADTSLength + 2)]
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}
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return
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}
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func NewAVPacket(avType byte) (p *AVPacket) {
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p = new(AVPacket)
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p.Type = avType
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return
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}
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func (av AVPacket) Clone() *AVPacket {
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return &av
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}
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type SendPacket struct {
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*AVPacket
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Timestamp uint32
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}
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func (packet *SendPacket) Recycle() {
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SendPacketPool.Put(packet)
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}
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func NewSendPacket(p *AVPacket, timestamp uint32) (result *SendPacket) {
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result = SendPacketPool.Get().(*SendPacket)
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result.AVPacket = p
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result.Timestamp = timestamp
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return
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}
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