test transcode slow

example/transcoder/main.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"context"
+	"github.com/deepch/vdk/format/rtspv2"
+	"github.com/deepch/vdk/format/ts"
+	"log"
+	"os/exec"
+	"time"
+)
+
+func main() {
+	RTSPClient, err := rtspv2.Dial(rtspv2.RTSPClientOptions{URL: "rtsp://url", DisableAudio: true, DialTimeout: 3 * time.Second, ReadWriteTimeout: 5 * time.Second, Debug: true, OutgoingProxy: false})
+	if err != nil {
+		panic(err)
+	}
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	cmd := exec.CommandContext(ctx, "ffmpeg", "-flags", "low_delay", "-analyzeduration", "1", "-fflags", "-nobuffer", "-probesize", "1024k", "-f", "mpegts", "-i", "-", "-vcodec", "libx264", "-preset", "ultrafast", "-bf", "0", "-f", "mpegts", "-max_muxing_queue_size", "400", "-pes_payload_size", "0", "pipe:1")
+	inPipe, _ := cmd.StdinPipe()
+	outPipe, _ := cmd.StdoutPipe()
+	//cmd.Stderr = os.Stderr
+	mux := ts.NewMuxer(inPipe)
+	demuxer := ts.NewDemuxer(outPipe)
+	codec := RTSPClient.CodecData
+	mux.WriteHeader(codec)
+	go func() {
+		imNewCodec, err := demuxer.Streams()
+		log.Println("new codec data", imNewCodec, err)
+		for i, data := range imNewCodec {
+			log.Println(i, data)
+		}
+		for {
+			pkt, err := demuxer.ReadPacket()
+			if err != nil {
+				log.Panic(err)
+			}
+			log.Println("im new pkt ===>", pkt.Idx, pkt.Time)
+		}
+	}()
+	cmd.Start()
+	var start bool
+	for {
+		select {
+		case signals := <-RTSPClient.Signals:
+			switch signals {
+			case rtspv2.SignalCodecUpdate:
+				//?
+			case rtspv2.SignalStreamRTPStop:
+				return
+			}
+		case packetAV := <-RTSPClient.OutgoingPacketQueue:
+			if packetAV.IsKeyFrame {
+				start = true
+			}
+			if !start {
+				continue
+			}
+			if err = mux.WritePacket(*packetAV); err != nil {
+				return
+			}
+		}
+	}
+}