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example add framedrop

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This commit is contained in:
nareix 2016-07-17 20:09:03 +08:00
parent e2fb4a644f
commit a9a34f7a4d
1 changed files with 20 additions and 0 deletions
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20
examples/rtmp_server_channels/main.go
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@ -4,6 +4,7 @@ import (
"sync" "sync"
"fmt" "fmt"
"time" "time"
"github.com/nareix/joy4/av"
"github.com/nareix/joy4/format" "github.com/nareix/joy4/format"
"github.com/nareix/joy4/av/avutil" "github.com/nareix/joy4/av/avutil"
"github.com/nareix/joy4/av/pubsub" "github.com/nareix/joy4/av/pubsub"
@ -15,6 +16,20 @@ func init() {
format.RegisterAll() format.RegisterAll()
} }
type FrameDropper struct {
Interval int
n int
}
func (self *FrameDropper) ModifyPacket(pkt *av.Packet, streams []av.CodecData, videoidx int, audioidx int) (drop bool, err error) {
if self.Interval != 0 && self.n >= self.Interval && pkt.Idx == int8(videoidx) && !pkt.IsKeyFrame {
drop = true
self.n = 0
}
self.n++
return
}
func main() { func main() {
server := &rtmp.Server{} server := &rtmp.Server{}
@ -45,6 +60,11 @@ func main() {
filters = append(filters, &pktque.WaitKeyFrame{}) filters = append(filters, &pktque.WaitKeyFrame{})
} }
filters = append(filters, &pktque.FixTime{StartFromZero: true}) filters = append(filters, &pktque.FixTime{StartFromZero: true})
if q := query.Get("framedrop"); q != "" {
n := 0
fmt.Sscanf(q, "%d", &n)
filters = append(filters, &FrameDropper{Interval: n})
}
demuxer := &pktque.FilterDemuxer{ demuxer := &pktque.FilterDemuxer{
Filter: filters, Filter: filters,
Demuxer: cursor, Demuxer: cursor,