增加分片录制能力以及hls录制能力

subscriber.go

@@ -0,0 +1,43 @@
+package record
+
+import (
+	"path/filepath"
+	"strconv"
+	"time"
+
+	. "m7s.live/engine/v4"
+)
+
+type Recorder struct {
+	Subscriber
+	*Record
+	newFile bool   // 创建了新的文件
+	append  bool   // 是否追加模式
+}
+
+func (r *Recorder) OnEvent(event any) {
+	switch v := event.(type) {
+	case ISubscriber:
+		filename := strconv.FormatInt(time.Now().Unix(), 10) + r.Ext
+		if r.Fragment == 0 {
+			filename = r.Stream.Path + r.Ext
+		} else {
+			filename = filepath.Join(r.Stream.Path, filename)
+		}
+		if file, err := r.CreateFileFn(filename, r.append); err == nil {
+			r.SetIO(file)
+			go func() {
+				r.PlayBlock()
+				recordConfig.recordings.Delete(r.ID)
+				r.Close()
+			}()
+		}
+	case *VideoFrame:
+		if ts := v.AbsTime; v.IFrame && int64(ts-r.Video.First.AbsTime) >= int64(r.Fragment*1000) {
+			r.Video.First.AbsTime = ts
+			r.newFile = true
+		}
+	default:
+		r.Subscriber.OnEvent(event)
+	}
+}