60 lines
1.0 KiB
Go
60 lines
1.0 KiB
Go
package nvr
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/deepch/vdk/av"
|
|
)
|
|
|
|
type Muxer struct {
|
|
name string
|
|
patch string
|
|
started bool
|
|
file *os.File
|
|
codec []av.CodecData
|
|
buffer []*av.Packet
|
|
bufferDur time.Duration
|
|
seqDur time.Duration
|
|
}
|
|
|
|
//NewMuxer func
|
|
func NewMuxer(codec []av.CodecData, name, patch string, seqDur time.Duration) *Muxer {
|
|
return &Muxer{
|
|
codec: codec,
|
|
name: name,
|
|
patch: patch,
|
|
seqDur: seqDur,
|
|
}
|
|
}
|
|
|
|
//WritePacket func
|
|
func (obj *Muxer) CodecUpdate(val []av.CodecData) {
|
|
obj.codec = val
|
|
}
|
|
|
|
//WritePacket func
|
|
func (obj *Muxer) WritePacket(pkt *av.Packet) (err error) {
|
|
if !obj.started && pkt.IsKeyFrame {
|
|
obj.started = true
|
|
}
|
|
if obj.started {
|
|
if pkt.IsKeyFrame && obj.bufferDur >= obj.seqDur {
|
|
log.Println("write to drive", len(obj.buffer), obj.bufferDur)
|
|
obj.buffer = nil
|
|
obj.bufferDur = 0
|
|
}
|
|
obj.buffer = append(obj.buffer, pkt)
|
|
if pkt.Idx == 0 {
|
|
obj.bufferDur += pkt.Duration
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
//Close func
|
|
func (obj *Muxer) Close() {
|
|
return
|
|
}
|