hls: remove useless check

internal/core/hls_remuxer.go

@@ -435,15 +435,8 @@ func (r *hlsRemuxer) handleRequest(req hlsRemuxerRequest) {
 
 	switch {
 	case req.File == "stream.m3u8":
-		r := r.muxer.Playlist()
-		if r == nil {
-			req.W.WriteHeader(http.StatusNotFound)
-			req.Res <- nil
-			return
-		}
-
 		req.W.Header().Set("Content-Type", `application/x-mpegURL`)
-		req.Res <- r
+		req.Res <- r.muxer.Playlist()
 
 	case strings.HasSuffix(req.File, ".ts"):
 		r := r.muxer.TSFile(req.File)

internal/hls/muxer.go

@@ -213,10 +213,6 @@ func (m *Muxer) Playlist() io.Reader {
 	m.mutex.RLock()
 	defer m.mutex.RUnlock()
 
-	if len(m.tsQueue) == 0 {
-		return nil
-	}
-
 	cnt := "#EXTM3U\n"
 	cnt += "#EXT-X-VERSION:3\n"
 	cnt += "#EXT-X-ALLOW-CACHE:NO\n"