patch for #353

pkg/hevc/hevc.go

@@ -10,7 +10,6 @@ package hevc
 
 import (
 	"bytes"
-
 	"github.com/q191201771/naza/pkg/nazaerrors"
 
 	"github.com/q191201771/lal/pkg/base"
@@ -252,13 +251,15 @@ func ParseVpsSpsPpsFromSeqHeaderWithoutMalloc(payload []byte) (vps, sps, pps []b
 	}
 
 	vps, sps, pps, err = parseVpsSpsPpsFromRecord(payload)
-	if err != nil {
+	if err != nil && StrategyTryAnnexbWhenParseVspFromSeqHeaderFailed {
+		//Log.Warnf("parse vps sps pps from seq header failed. try parse from annexb. payload=%s, err=%+v", hex.Dump(payload), err)
 		vps, sps, pps, err = parseVpsSpsPpsAnnexbFromRecord(payload)
 	}
 
 	return
 }
 
+// TODO(chef): 函数中 vps 等变量指向的为新申请的内存块，与调用它的函数 ParseVpsSpsPpsFromSeqHeaderWithoutMalloc 语义不相符 202405
 func parseVpsSpsPpsAnnexbFromRecord(payload []byte) (vps, sps, pps []byte, err error) {
 	for i := 0; i < len(payload)-4; {
 		start := bytes.Index(payload[i:], NaluStartCode4)

pkg/hevc/var.go

@@ -11,3 +11,8 @@ package hevc
 import "github.com/q191201771/naza/pkg/nazalog"
 
 var Log = nazalog.GetGlobalLogger()
+
+// StrategyTryAnnexbWhenParseVspFromSeqHeaderFailed 从seq header中解析vps/sps/pps失败时，尝试按annexb格式解析
+//
+// https://github.com/q191201771/lal/pull/353
+var StrategyTryAnnexbWhenParseVspFromSeqHeaderFailed = false