[feat] avc: 新增Annexb2Avcc函数

q191201771 · Mar 27, 2022 · c2fa468 · c2fa468
1 parent 0ebe60a
commit c2fa468
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/pkg/avc/avc.go b/pkg/avc/avc.go
@@ -538,7 +538,16 @@ func Avcc2Annexb(nals []byte) ([]byte, error) {
 	return ret, err
 }
 
-// TODO(chef): 是否需要 func NaluAvcc2Annexb, func NaluAnnexb2Avcc
+func Annexb2Avcc(nals []byte) ([]byte, error) {
+	var buf nazabytes.Buffer
+	buf.Grow(len(nals))
+	err := IterateNaluAnnexb(nals, func(nal []byte) {
+		bele.BePutUint32(buf.ReserveBytes(4), uint32(len(nal)))
+		buf.Flush(4)
+		_, _ = buf.Write(nal)
+	})
+	return buf.Bytes(), err
+}
 
 // ---------------------------------------------------------------------------------------------------------------------