[fix] fix h264 rtp packet packetization and depacketization

src/rtp/rtp_packet/rtp_packet_h264.h

@@ -0,0 +1,31 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2025-01-23
+ * Copyright (c) 2025 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _RTP_PACKET_H264_H_
+#define _RTP_PACKET_H264_H_
+
+#include "rtp_packet.h"
+
+class RtpPacketH264 : public RtpPacket {
+ public:
+  RtpPacketH264();
+  virtual ~RtpPacketH264();
+
+ public:
+  bool GetFrameHeaderInfo();
+  // NAL
+  rtp::NAL_UNIT_TYPE NalUnitType() {
+    return rtp::NAL_UNIT_TYPE(fu_indicator_.nal_unit_type);
+  }
+  bool FuAStart() { return fu_header_.start; }
+  bool FuAEnd() { return fu_header_.end; }
+
+ private:
+  rtp::FU_INDICATOR fu_indicator_;
+  rtp::FU_HEADER fu_header_;
+};
+
+#endif