Refine HLS LL configuration. v5.13.8

DEVELOPER.md

@@ -1089,7 +1089,8 @@ The following are the update records for the SRS Stack server.
     * Transcript: Check the base url for OpenAI. [v5.12.17](https://github.com/ossrs/srs-stack/releases/tag/v5.12.17)
     * HLS: Support low latency mode about 5s. v5.12.18
     * RTSP: Rebuild the URL with escaped user info. v5.12.19
-    * VLive: Fix rebuild URL bug. [v5.12.20](https://github.com/ossrs/srs-stack/releases/tag/v5.12.20)
+    * VLive: Fix rebuild URL bug. v5.12.20
+    * HLS: Fix LL HLS setting bug. [v5.12.21](https://github.com/ossrs/srs-stack/releases/tag/v5.12.21)
 * v5.11
     * VLive: Decrease the latency for virtual live. v5.11.1
     * Live: Refine multiple language. v5.11.2

platform/utils.go

@@ -477,7 +477,7 @@ func srsGenerateConfig(ctx context.Context) error {
 		} else {
 			hlsConf = append(hlsConf, []string{
 				"    hls_fragment 2;",
-				"    hls_window 12;",
+				"    hls_window 16;",
 			}...)
 		}
 	}
@@ -487,7 +487,7 @@ func srsGenerateConfig(ctx context.Context) error {
 		"    hls_m3u8_file [app]/[stream].m3u8;",
 		"    hls_ts_file [app]/[stream]-[seq]-[timestamp].ts;",
 		"    hls_wait_keyframe on;",
-		"    hls_dispose 10;",
+		"    hls_dispose 15;",
 	}...)
 	if noHlsCtx, err := rdb.HGet(ctx, SRS_HP_HLS, "noHlsCtx").Result(); err != nil && err != redis.Nil {
 		return errors.Wrapf(err, "hget %v hls", SRS_HP_HLS)