优化重连和兼容本地文件读取

README.md

@@ -49,4 +49,7 @@ ffplay -i http://localhost:2020/live/test.flv
 `/hdl/pull/pull?target=[HTTP-FLV地址]&streamPath=[流标识]&save=[是否保存配置（留空则不保存）]`
 
 或者编程方式拉流
-`PullStream(streamPath, targetURL)`
+`PullStream(streamPath, targetURL)`
+
+### m7s读取本地flv文件重新发布
+同上，只需要把http地址改成本地文件地址即可，如果此时开启Reconnect则会在文件读取完成后重新开始读取

pull.go

@@ -4,60 +4,88 @@ import (
 	"errors"
 	"io"
 	"net/http"
+	"os"
+	"strings"
 	"time"
 
 	. "github.com/Monibuca/engine/v3"
 	"github.com/Monibuca/utils/v3/codec"
 )
 
-func pull(stream *Stream, reader io.Reader, lastDisconnect uint32) error {
-	var lastTime uint32
-	if config.Reconnect {
-		time.Sleep(time.Second * 5)
-		go pull(stream, reader, lastTime)
-	} else {
-		defer stream.Close()
-	}
+func pull(at *AudioTrack, vt *VideoTrack, reader io.Reader, lastDisconnect uint32) (lastTime uint32) {
 	head := make([]byte, len(codec.FLVHeader))
 	io.ReadFull(reader, head)
-	at := stream.NewAudioTrack(0)
-	vt := stream.NewVideoTrack(0)
-	for readT := time.Now(); ; readT = time.Now() {
+	for startTime := time.Now(); ; {
 		if t, timestamp, payload, err := codec.ReadFLVTag(reader); err == nil {
-			if lastDisconnect != 0 && timestamp == 0 {
-				continue
-			}
-			readCost := time.Since(readT)
 			switch t {
 			case codec.FLV_TAG_TYPE_AUDIO:
 				at.PushByteStream(timestamp+lastDisconnect, payload)
 			case codec.FLV_TAG_TYPE_VIDEO:
 				vt.PushByteStream(timestamp+lastDisconnect, payload)
-				if timestamp != 0 {
-					if duration := time.Duration(timestamp-lastTime) * time.Millisecond; readCost < duration {
-						time.Sleep(duration - readCost)
-					}
+			}
+			if timestamp != 0 {
+				elapse := time.Since(startTime)
+				// 如果读取过快，导致时间戳超过真正流逝的时间，就需要睡眠，降低速度
+				if elapse.Milliseconds() < int64(timestamp) {
+					time.Sleep(time.Millisecond*time.Duration(timestamp) - elapse)
 				}
-				lastTime = timestamp
+			}
+			lastTime = timestamp
+		} else {
+			return
+		}
+	}
+}
+func PullStream(streamPath, url string) error {
+	stream := Stream{
+		Type:       "HDL Pull",
+		StreamPath: streamPath,
+	}
+	at := stream.NewAudioTrack(0)
+	vt := stream.NewVideoTrack(0)
+	if strings.HasPrefix(url, "http") {
+		if res, err := http.Get(url); err == nil {
+			if stream.Publish() {
+				go func() {
+					lastTs := pull(at, vt, res.Body, 0)
+					if config.Reconnect {
+						for stream.Err() == nil {
+							time.Sleep(time.Second * 5)
+							lastTs = pull(at, vt, res.Body, lastTs)
+						}
+					} else {
+						stream.Close()
+					}
+				}()
+			} else {
+				return errors.New("Bad Name")
+			}
+		} else {
+			return err
+		}
+	} else {
+		stream.Type = "FLV File"
+		if file, err := os.Open(url); err == nil {
+			if stream.Publish() {
+				go func() {
+					lastTs := pull(at, vt, file, 0)
+					if config.Reconnect {
+						for stream.Err() == nil {
+							file.Seek(0, io.SeekStart)
+							lastTs = pull(at, vt, file, lastTs)
+						}
+					} else {
+						file.Close()
+						stream.Close()
+					}
+				}()
+			} else {
+				file.Close()
+				return errors.New("Bad Name")
 			}
 		} else {
 			return err
 		}
 	}
-}
-func PullStream(streamPath, url string) error {
-	if res, err := http.Get(url); err == nil {
-		stream := Stream{
-			Type:       "HDL Pull",
-			StreamPath: streamPath,
-		}
-		if stream.Publish() {
-			go pull(&stream, res.Body, 0)
-		} else {
-			return errors.New("Bad Name")
-		}
-	} else {
-		return err
-	}
 	return nil
 }