{"id":49265,"date":"2025-07-30T16:57:53","date_gmt":"2025-07-30T08:57:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/49265.html"},"modified":"2025-07-30T16:57:53","modified_gmt":"2025-07-30T08:57:53","slug":"%e3%80%90rtsp%e4%bb%8e%e9%9b%b6%e5%ae%9e%e8%b7%b5%e3%80%916%e3%80%81%e5%ae%9e%e7%8e%b0%e6%9c%80%e7%ae%80%e5%8d%95%e7%9a%84%e5%90%8c%e6%97%b6%e4%bc%a0%e8%be%93h264%e3%80%81aac%e7%9a%84rtsp%e6%9c%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/49265.html","title":{"rendered":"\u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u30116\u3001\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u540c\u65f6\u4f20\u8f93H264\u3001AAC\u7684RTSP\u670d\u52a1\u5668"},"content":{"rendered":"

😁\u535a\u5ba2\u4e3b\u9875😁：🚀https:\/\/blog.csdn.net\/wkd_007🚀<\/font> 🤑\u535a\u5ba2\u5185\u5bb9🤑：🍭\u5d4c\u5165\u5f0f\u5f00\u53d1\u3001Linux\u3001C\u8bed\u8a00\u3001C++\u3001\u6570\u636e\u7ed3\u6784\u3001\u97f3\u89c6\u9891🍭<\/font> 🤣\u672c\u6587\u5185\u5bb9🤣：🍭\u4ecb\u7ecd\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u4f20\u8f93H264\u3001AAC\u7684RTSP\u670d\u52a1\u5668 🍭<\/font> 😎\u91d1\u53e5\u5206\u4eab😎：🍭\u4f60\u4e0d\u80fd\u9009\u62e9\u6700\u597d\u7684，\u4f46\u6700\u597d\u7684\u4f1a\u6765\u9009\u62e9\u4f60\u2014\u2014\u6cf0\u6208\u5c14🍭<\/font> \u23f0\u53d1\u5e03\u65f6\u95f4\u23f0： 2025-07-02<\/font><\/p>\n

\u672c\u6587\u672a\u7ecf\u5141\u8bb8，\u4e0d\u5f97\u8f6c\u53d1！！！<\/font><\/p>\n<\/p>\n

\u76ee\u5f55<\/h4>\n
    \n
  • 🎄\u4e00\u3001\u6982\u8ff0<\/li>\n
  • 🎄\u4e8c\u3001\u5b9e\u73b0RTSP\u670d\u52a1<\/li>\n
  • \n
      \n
    • \u27282.1 \u521b\u5efasocket\u5957\u63a5\u5b57<\/li>\n
    • \u27282.2 \u5904\u7406RTSP\u547d\u4ee4<\/li>\n<\/ul>\n<\/li>\n
    • 🎄\u4e09\u3001\u8bfb\u53d6H264\u5c01\u88c5\u6210RTP\u5305\u5e76\u53d1\u9001<\/li>\n
    • \n
        \n
      • \u27283.1 \u5b9e\u73b0H.264\u6587\u4ef6\u8bfb\u53d6\u5668<\/li>\n
      • \u27283.2 H264\u7684RTP\u5934(RTP Header<\/font>)<\/li>\n
      • \u27283.3 H264 \u7684 RTP\u8d1f\u8f7d(RTP Payload<\/font>)<\/li>\n<\/ul>\n<\/li>\n
      • 🎄\u56db\u3001\u8bfb\u53d6AAC\u5c01\u88c5\u6210RTP\u5305\u5e76\u53d1\u9001<\/li>\n
      • \n
          \n
        • \u27284.1 \u5b9e\u73b0AAC\u6587\u4ef6\u8bfb\u53d6\u5668<\/li>\n
        • \u27284.2 AAC\u7684RTP\u5934(RTP Header<\/font>)<\/li>\n
        • \u27284.3 AAC \u7684 RTP\u8d1f\u8f7d(RTP Payload<\/font>)<\/li>\n<\/ul>\n<\/li>\n
        • 🎄\u4e94\u3001\u540c\u65f6\u53d1\u9001H264\u3001AAC\u7684RTSP\u670d\u52a1\u5668\u5b9e\u73b0\u6e90\u7801<\/li>\n
        • 🎄\u516d\u3001\u603b\u7ed3<\/li>\n<\/ul>\n
          \n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u524d\u9762\u7cfb\u5217\u6587\u7ae0\u56de\u987e： \u3010\u97f3\u89c6\u9891 | RTSP\u3011RTSP\u534f\u8bae\u8be6\u89e3 \u53ca \u6293\u5305\u4f8b\u5b50\u89e3\u6790（\u8be6\u7ec6\u800c\u4e0d\u8d58\u8ff0） \u3010\u97f3\u89c6\u9891 | RTSP\u3011SDP(\u4f1a\u8bdd\u63cf\u8ff0\u534f\u8bae)\u8be6\u89e3 \u53ca \u6293\u5305\u4f8b\u5b50\u5206\u6790 \u3010\u97f3\u89c6\u9891 | RTP\u3011RTP\u534f\u8bae\u8be6\u89e3(H.264\u7684RTP\u5c01\u5305\u683c\u5f0f\u3001AAC\u7684RTP\u5c01\u5305\u683c\u5f0f) \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u30111\u3001\u6839\u636eRTSP\u534f\u8bae\u5b9e\u73b0\u4e00\u4e2aRTSP\u670d\u52a1 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u30112\u3001\u4f7f\u7528RTP\u534f\u8bae\u5c01\u88c5\u5e76\u4f20\u8f93H264 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u30113\u3001\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u4f20\u8f93H264\u7684RTSP\u670d\u52a1\u5668 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u30114\u3001\u4f7f\u7528RTP\u534f\u8bae\u5c01\u88c5\u5e76\u4f20\u8f93AAC \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u30115\u3001\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u4f20\u8f93AAC\u7684RTSP\u670d\u52a1\u5668<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          🎄\u4e00\u3001\u6982\u8ff0<\/h2>\n

          \u8fd9\u7bc7\u6587\u7ae0\u4ecb\u7ecd\u5982\u4f55\u5b9e\u73b0\u6700\u7b80\u5355\u4e00\u4e2a\u6700\u7b80\u5355\u7684RTSP\u670d\u52a1\u5668，\u53ef\u4ee5\u540c\u65f6\u4f20\u8f93H264\u6570\u636e\u3001AAC\u6570\u636e\u3002<\/p>\n

          \u5982\u679c\u5b66\u4e60\u8fc7\u524d\u9762\u7cfb\u5217\u6587\u7ae0，\u4f60\u5e94\u8be5\u4e5f\u80fd\u591f\u81ea\u5df1\u5b9e\u73b0\u4e00\u4e2a\u540c\u65f6\u4f20\u8f93\u97f3\u89c6\u9891\u7684RTSP\u670d\u52a1\u5668\u4e86\u3002\u5176\u5b9e\u5c31\u662f\u5c06\u524d\u9762\u7684\u6240\u6709\u77e5\u8bc6\u70b9\u878d\u5408\u5230\u4e00\u8d77，\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u81ea\u5df1\u5148\u5b9e\u73b0\u4e00\u4e0b，\u4e3b\u8981\u6709\u4e0b\u9762\u8fd9\u4e9b\u77e5\u8bc6\u70b9：<\/p>\n

            \n
          • 1\u3001\u4e00\u4e2aRTSP\u670d\u52a1\u76f8\u5173\u77e5\u8bc6，\u5305\u62ec\u4e86 \u521b\u5efaTCP\u5957\u63a5\u5b57，\u4e86\u89e3SDP\u534f\u8bae，\u5904\u7406RTSP\u5ba2\u6237\u7aef\u7684\u547d\u4ee4 \u7b49；<\/li>\n
          • 2\u3001\u8bfb\u53d6H264\u5c01\u88c5\u6210RTP\u5305\u5e76\u53d1\u9001\u7684\u76f8\u5173\u77e5\u8bc6，\u5305\u62ec \u4e86\u89e3H264\u3001\u4e86\u89e3RTP\u534f\u8bae\u600e\u4e48\u5c01\u88c5H264 \u7b49；<\/li>\n
          • 3\u3001\u8bfb\u53d6AAC\u5c01\u88c5\u6210RTP\u5305\u5e76\u53d1\u9001\u7684\u76f8\u5173\u77e5\u8bc6，\u5305\u62ec \u4e86\u89e3AAC\u3001\u4e86\u89e3RTP\u534f\u8bae\u600e\u4e48\u5c01\u88c5AAC \u7b49；<\/li>\n<\/ul>\n

            \u8fd9\u4e9b\u77e5\u8bc6\u90fd\u53ef\u4ee5\u4ece\u4e0a\u9762\u7cfb\u5217\u6587\u7ae0\u5b66\u4e60\u5230，\u4e0b\u9762\u5f00\u59cb\u4ecb\u7ecd\u4e00\u4e9b\u5fc5\u8981\u7684\u5b9e\u73b0\u6b65\u9aa4\u3002<\/p>\n

            \n

            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            🎄\u4e8c\u3001\u5b9e\u73b0RTSP\u670d\u52a1<\/h2>\n

            RTSP\u670d\u52a1\u662f\u4f7f\u7528TCP\u4f5c\u4e3a\u4f20\u8f93\u5c42\u534f\u8bae\u7684，\u800c\u672c\u6587\u7684RTP\u5305\u662f\u4f7f\u7528UDP，\u6240\u4ee5\u5b9e\u73b0\u8fd9\u4e2aRTSP\u670d\u52a1\u9700\u8981\u521b\u5efa3\u4e2a\u5957\u63a5\u5b57，\u7136\u540e\u662f\u5904\u7406\u5ba2\u6237\u7aef\u7684RTSP\u547d\u4ee4\u3002<\/p>\n

            \u27282.1 \u521b\u5efasocket\u5957\u63a5\u5b57<\/h3>\n

            \u7a0b\u5e8f\u5f00\u59cb\u521b\u5efa\u4e00\u4e2aTCP\u5957\u63a5\u5b57\u7528\u6765\u4f5c\u4e3aRTSP\u670d\u52a1\u7aef，\u4f7f\u7528\u7684\u662f8554\u7aef\u53e3；\u7136\u540e\u521b\u5efa2\u4e2aUDP\u5957\u63a5\u5b57\u5206\u522b\u7528\u6765\u53d1\u9001H264\u7684RTP\u5305 \u548c AAC\u7684RTP\u5305\u3002<\/p>\n

            \/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/span>
            \nif<\/span> (<\/span>(<\/span>server_fd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n perror<\/span>(<\/span>"socket failed"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879<\/span>
            \nif<\/span> (<\/span>setsockopt<\/span>(<\/span>server_fd,<\/span> SOL_SOCKET,<\/span> SO_REUSEADDR,<\/span> &<\/span>opt,<\/span> sizeof<\/span>(<\/span>opt)<\/span>)<\/span>)<\/span>
            \n{<\/span>
            \n perror<\/span>(<\/span>"setsockopt"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span><\/p>\n

            address.<\/span>sin_family =<\/span> AF_INET;<\/span>
            \naddress.<\/span>sin_addr.<\/span>s_addr =<\/span> INADDR_ANY;<\/span>
            \naddress.<\/span>sin_port =<\/span> htons<\/span>(<\/span>RTSP_PORT)<\/span>;<\/span><\/p>\n

            \/\/ \u7ed1\u5b9a\u7aef\u53e3<\/span>
            \nif<\/span> (<\/span>bind<\/span>(<\/span>server_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span> *<\/span>)<\/span>&<\/span>address,<\/span> sizeof<\/span>(<\/span>address)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n perror<\/span>(<\/span>"bind failed"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \/\/ \u5f00\u59cb\u76d1\u542c<\/span>
            \nif<\/span> (<\/span>listen<\/span>(<\/span>server_fd,<\/span> MAX_CLIENTS)<\/span> <<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n perror<\/span>(<\/span>"listen"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \/\/ \u7528\u4e8e\u53d1\u9001 h264 rtp \u5305\u7684udp\u5957\u63a5\u5b57<\/span>
            \nint<\/span> rtp_h264_fd =<\/span> createUdpSocket<\/span>(<\/span>)<\/span>;<\/span>
            \nif<\/span> (<\/span>rtp_h264_fd <<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n printf<\/span>(<\/span>"failed to create socket\\\\n"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span>
            \naddress.<\/span>sin_port =<\/span> htons<\/span>(<\/span>RTP_PORT)<\/span>;<\/span>
            \nif<\/span> (<\/span>bind<\/span>(<\/span>rtp_h264_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span> *<\/span>)<\/span>&<\/span>address,<\/span> sizeof<\/span>(<\/span>address)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n perror<\/span>(<\/span>"rtp_h264_fd bind failed"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \/\/ \u7528\u4e8e\u53d1\u9001 aac rtp \u5305\u7684udp\u5957\u63a5\u5b57<\/span>
            \nint<\/span> rtp_aac_fd =<\/span> createUdpSocket<\/span>(<\/span>)<\/span>;<\/span>
            \nif<\/span> (<\/span>rtp_aac_fd <<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n printf<\/span>(<\/span>"failed to create socket\\\\n"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span>
            \naddress.<\/span>sin_port =<\/span> htons<\/span>(<\/span>RTP_PORT +<\/span> 2<\/span>)<\/span>;<\/span>
            \nif<\/span> (<\/span>bind<\/span>(<\/span>rtp_aac_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span> *<\/span>)<\/span>&<\/span>address,<\/span> sizeof<\/span>(<\/span>address)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n perror<\/span>(<\/span>"rtp_aac_fd bind failed"<\/span>)<\/span>;<\/span>
            \n return<\/span> –<\/span>1<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \n

            \u27282.2 \u5904\u7406RTSP\u547d\u4ee4<\/h3>\n

            \u5904\u7406RTSP\u547d\u4ee4\u65f6，\u9996\u5148\u9700\u8981\u6ce8\u610f\u7684\u662f\u5904\u7406 DESCRIBE \u547d\u4ee4\u65f6，\u8fd4\u56de\u7684sdp\u4fe1\u606f\u9700\u8981\u5305\u542b2\u4e2a\u5a92\u4f53\u4fe1\u606f，\u5982\u4e0b\u56fe：<\/p>\n

            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            \u5176\u6b21，\u662f\u5904\u7406 SETUP \u547d\u4ee4\u65f6，\u9700\u8981\u4fdd\u5b58\u5ba2\u6237\u7aef\u76842\u4e2aRTP\u6570\u636e\u5305\u63a5\u6536\u7aef\u53e3，\u5177\u4f53\u5982\u4e0b：<\/p>\n

            char<\/span> response[<\/span>1024<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span> \/\/ \u6784\u9020\u54cd\u5e94<\/span>
            \nif<\/span> (<\/span>strcmp<\/span>(<\/span>method,<\/span> "OPTIONS"<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n rtsp_handle_OPTION<\/span>(<\/span>response,<\/span> cseq)<\/span>;<\/span>
            \n}<\/span>
            \nelse<\/span> if<\/span> (<\/span>strcmp<\/span>(<\/span>method,<\/span> "DESCRIBE"<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n rtsp_handle_DESCRIBE<\/span>(<\/span>response,<\/span> cseq)<\/span>;<\/span>
            \n}<\/span>
            \nelse<\/span> if<\/span> (<\/span>strcmp<\/span>(<\/span>method,<\/span> "SETUP"<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n \/\/ printf("url:[%s]\\\\n", url);<\/span>
            \n int<\/span> streamid =<\/span> 0<\/span>;<\/span>
            \n if<\/span> (<\/span>NULL<\/span> !=<\/span> strstr<\/span>(<\/span>url,<\/span> "streamid=1"<\/span>)<\/span>)<\/span>
            \n {<\/span>
            \n streamid =<\/span> 1<\/span>;<\/span>
            \n rtpAACPort =<\/span> rtpPort;<\/span>
            \n }<\/span>
            \n else<\/span>
            \n {<\/span>
            \n rtpH264Port =<\/span> rtpPort;<\/span>
            \n }<\/span>
            \n rtsp_handle_SETUP<\/span>(<\/span>response,<\/span> cseq,<\/span> rtpPort,<\/span> streamid)<\/span>;<\/span>
            \n}<\/span>
            \nelse<\/span> if<\/span> (<\/span>strcmp<\/span>(<\/span>method,<\/span> "PLAY"<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n rtsp_handle_PLAY<\/span>(<\/span>response,<\/span> cseq)<\/span>;<\/span>
            \n bSendFlag =<\/span> RTP_PLAY;<\/span>
            \n}<\/span>
            \nelse<\/span> if<\/span> (<\/span>strcmp<\/span>(<\/span>method,<\/span> "TEARDOWN"<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
            \n{<\/span>
            \n rtsp_handle_TEARDOWN<\/span>(<\/span>response,<\/span> cseq)<\/span>;<\/span>
            \n bSendFlag =<\/span> RTP_STOP;<\/span>
            \n}<\/span>
            \nelse<\/span>
            \n{<\/span>
            \n snprintf<\/span>(<\/span>response,<\/span> sizeof<\/span>(<\/span>response)<\/span>,<\/span>
            \n "RTSP\/1.0 501 Not Implemented\\\\r\\\\nCSeq: %d\\\\r\\\\n\\\\r\\\\n"<\/span>,<\/span> cseq)<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \n

            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            🎄\u4e09\u3001\u8bfb\u53d6H264\u5c01\u88c5\u6210RTP\u5305\u5e76\u53d1\u9001<\/h2>\n

            RTSP\u670d\u52a1\u521b\u5efa\u540e，\u5c31\u53ef\u4ee5\u5f00\u59cb\u53d1\u6d41\u4e86\u3002\u8fd9\u91cc\u5148\u4ecb\u7ecdH264\u7684\u53d1\u6d41\u8fc7\u7a0b\u3002<\/p>\n

            \u9996\u5148，\u8981\u8bfb\u53d6H264\u6587\u4ef6；\u7136\u540e，\u5c01\u88c5RTP\u5305\u5934；\u6700\u540e\u5c01\u88c5RTP\u8d1f\u8f7d\u3002<\/p>\n

            \u27283.1 \u5b9e\u73b0H.264\u6587\u4ef6\u8bfb\u53d6\u5668<\/h3>\n

            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            H.264\u6587\u4ef6\u4fdd\u5b58\u4e86h264\u7f16\u7801\u7684\u89c6\u9891\u5e27，\u6bcf\u4e2a\u89c6\u9891\u5e27\u4e4b\u95f4\u4ee5\u5f00\u59cb\u780100 00 01\u621600 00 00 01\u5206\u9694\u5f00\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u4e0b\u9762\u4ee3\u7801\u5224\u65ad\u662f\u5426\u4e3a\u5f00\u59cb\u7801\u3002 \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            \u5728\u4e24\u4e2a\u5f00\u59cb\u7801\u4e4b\u95f4\u7684\u5c31\u662f\u89c6\u9891\u5e27\u6570\u636e\u3002h264\u89c6\u9891\u5e27\u6570\u636e\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u662f\u4e00\u4e2aNAL\u5934，\u5185\u5bb9\u5982\u4e0b\u56fe： \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u53ef\u4ee5\u7528\u4e0b\u9762\u4ee3\u7801\u8bfb\u53d6NAL\u5934： \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            \n

            \u27283.2 H264\u7684RTP\u5934(RTP Header<\/font>)<\/h3>\n

            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u4e0a\u56fe\u662fRTP\u5934\u7684\u7ed3\u6784\u56fe，\u5305\u542b\u4e8612\u4e2a\u5b57\u8282\u7684\u5185\u5bb9，\u53ef\u4ee5\u7528\u4ee3\u7801\u5b9a\u4e49\u6210\u5982\u4e0b\u7ed3\u6784\u4f53：<\/p>\n

            struct<\/span> RtpHeader<\/span>
            \n{<\/span>
            \n \/* byte 0 *\/<\/span>
            \n uint8_t<\/span> csrcLen:<\/span>4<\/span>;<\/span>
            \n uint8_t<\/span> extension:<\/span>1<\/span>;<\/span>
            \n uint8_t<\/span> padding:<\/span>1<\/span>;<\/span>
            \n uint8_t<\/span> version:<\/span>2<\/span>;<\/span><\/p>\n

            \/* byte 1 *\/<\/span>
            \n uint8_t<\/span> payloadType:<\/span>7<\/span>;<\/span>
            \n uint8_t<\/span> marker:<\/span>1<\/span>;<\/span><\/p>\n

            \/* bytes 2,3 *\/<\/span>
            \n uint16_t<\/span> seq;<\/span><\/p>\n

            \/* bytes 4-7 *\/<\/span>
            \n uint32_t<\/span> timestamp;<\/span><\/p>\n

            \/* bytes 8-11 *\/<\/span>
            \n uint32_t<\/span> ssrc;<\/span>
            \n}<\/span>;<\/span><\/p>\n

            RTP\u5934\u8fd9\u91cc\u6d89\u53ca\u5230\u4e00\u4e2a \u65f6\u95f4\u6233\u600e\u4e48\u8ba1\u7b97 \u7684\u95ee\u9898，\u9700\u8981\u6ce8\u610f\u7684\u662f，\u8fd9\u4e2a\u65f6\u95f4\u6233\u662f\u4e00\u4e2a \u65f6\u949f\u9891\u7387 \u4e3a\u5355\u4f4d\u7684，\u800c\u4e0d\u662f\u5177\u4f53\u7684\u65f6\u95f4(\u79d2\u3001\u6beb\u79d2\u7b49)\u3002<\/p>\n

            \u4e00\u822c\u60c5\u51b5\u4e0b，H264\u7684\u65f6\u949f\u9891\u7387\u4e3a90000Hz，\u5047\u8bbe\u5e27\u7387\u4e3a25，\u90a3\u4e48\u6bcf\u4e00\u5e27\u7684 \u65f6\u95f4\u95f4\u9694 \u5c31\u662f1\/25\u79d2，\u6bcf\u4e00\u5e27\u7684 \u65f6\u949f\u589e\u91cf \u5c31\u662f(90000\/25=3600)\u3002\u90a3\u65f6\u95f4\u6233\u600e\u4e48\u7b97\u5462？\u4e3e\u4e2a\u4f8b\u5b50，\u5982\u679c\u5e27\u7387\u4e3a25\u7684H264\u89c6\u9891，\u7b2c\u4e00\u5e27\u7684RTP\u65f6\u95f4\u6233\u4e3a0\u7684\u8bdd，\u90a3\u4e48\u7b2c\u4e8c\u5e27\u7684RTP\u65f6\u95f4\u6233\u5c31\u662f 3600，\u7b2c\u4e09\u5e27\u7684RTP\u65f6\u95f4\u6233\u5c31\u662f 7200，\u4f9d\u6b21\u7c7b\u63a8，\u540e\u4e00\u5e27\u7684RTP\u65f6\u95f4\u6233\u5728\u524d\u4e00\u5e27\u7684RTP\u65f6\u95f4\u6233\u7684\u503c\u52a0\u4e0a\u4e00\u4e2a\u65f6\u949f\u589e\u91cf\u3002<\/p>\n

            \n

            \u27283.3 H264 \u7684 RTP\u8d1f\u8f7d(RTP Payload<\/font>)<\/h3>\n

            H264 \u7684 RTP\u8d1f\u8f7d\u9700\u8981\u4ecb\u7ecd\u4e24\u79cd\u65b9\u5f0f，\u7b2c\u4e00\u79cd\u662f \u5355\u4e2aNAL\u5355\u5143\u5c01\u5305(Single NAL Unit Packet)；\u7b2c\u4e8c\u79cd\u662f \u5206\u7247\u5355\u5143(Fragmentation Unit) \u3002\u5982\u679cH264\u7684\u89c6\u9891\u5e27NALU(NAL Unit)\u603b\u5b57\u8282\u6570\u5c0f\u4e8e MTU(\u7f51\u7edc\u6700\u5927\u4f20\u8f93\u5355\u51431500\u5b57\u8282)，\u5c31\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e00\u79cd\u65b9\u5f0f，\u56e0\u4e3a\u6709\u4e00\u4e9bTCP\/UDP\u5934\u6570\u636e，\u6240\u4ee5\u4e00\u822c\u5224\u65ad\u5c0f\u4e8e1400\u5b57\u8282，\u5c31\u91c7\u7528 \u5355\u4e2aNAL\u5355\u5143\u5c01\u5305(Single NAL Unit Packet)，\u5426\u5219\u4f7f\u7528\u5206\u7247\u5355\u5143(Fragmentation Unit)\u7684\u65b9\u5f0f\u5c01\u88c5RTP\u5305\u3002<\/p>\n

            \u5355\u4e2aNAL\u5355\u5143\u5c01\u5305 \u7684RTP\u8d1f\u8f7d\u7ed3\u6784\u5982\u4e0b\u56fe，\u76f8\u5f53\u4e8e\u76f4\u63a5\u5c06\u6574\u4e2aNAL Unit \u586b\u5165RTP\u8d1f\u8f7d\u5373\u53ef： \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

            \u5206\u7247\u5355\u5143\u7684RTP\u8d1f\u8f7d\u65b9\u5f0f\u4e5f\u6709\u4e24\u79cd，\u672c\u6587\u4ecb\u7ecd\u7684\u662fFU-A\u7684\u65b9\u5f0f，RTP\u8d1f\u8f7d\u6700\u5f00\u59cb\u7531\u4e09\u90e8\u5206\u7ec4\u6210：\u7b2c\u4e00\u4e2a\u5b57\u8282\u662fFU indicator，\u7b2c\u4e8c\u4e2a\u5b57\u8282\u662fFU header，\u7b2c\u4e09\u4e2a\u5b57\u8282\u5f00\u59cb\u5c31\u662fNAL\u5355\u5143\u53bb\u6389NAL\u5934\u4e4b\u540e\u7684\u6570\u636e： \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \n
            • \n

              FU indicator：FU indicator\u7684\u5927\u5c0f\u662f\u4e00\u4e2a\u5b57\u8282，\u683c\u5f0f\u5982\u4e0b，\u8ddfNAL\u5934\u7684\u683c\u5f0f\u4e00\u6837，\u4f46\u4f5c\u4e3a \u5206\u7247RTP\u5c01\u5305 ，\u5e76\u4e0d\u80fd\u76f4\u63a5\u5c06H264\u7684NAL\u5934\u76f4\u63a5\u586b\u4e0a\u53bb\u3002 F：\u4e00\u822c\u4e3a0\u3002\u4e3a0\u8868\u793a\u6b64NAL\u5355\u5143\u4e0d\u5e94\u5305\u542bbit\u9519\u8bef\u6216\u8bed\u6cd5\u8fdd\u89c4；\u4e3a1\u8868\u793a\u6b64NAL\u5355\u5143\u53ef\u80fd\u5305\u542bbit\u9519\u8bef\u6216\u8bed\u6cd5\u8fdd\u89c4； NRI：\u76f4\u63a5\u5c06H264NAL\u5934\u7684NRI\u503c\u586b\u5165\u5373\u53ef； Type：FU-A\u683c\u5f0f\u7684\u5c01\u5305\u586b28，FU-B\u683c\u5f0f\u7684\u5c01\u5305\u586b29\u3002<\/p>\n

              +—————+
              \n|0|1|2|3|4|5|6|7|
              \n+-+-+-+-+-+-+-+-+
              \n|F|NRI| Type |
              \n+—————+\n <\/li>\n

            • \n

              FU header ：FU header\u7684\u5927\u5c0f\u4e5f\u662f\u4e00\u4e2a\u5b57\u8282，\u683c\u5f0f\u5982\u4e0b： S：start，NALU\u62c6\u5206\u591a\u4e2a\u5206\u5305\u540e，\u7b2c\u4e00\u4e2a\u53d1\u9001\u7684\u5206\u5305，\u6b64bit\u4f4d\u7f6e1，\u5176\u4ed6\u5206\u5305\u4e3a0； E：end，NALU\u62c6\u5206\u591a\u4e2a\u5206\u5305\u540e，\u6700\u540e\u4e00\u4e2a\u53d1\u9001\u7684\u5206\u5305，\u6b64bit\u4f4d\u7f6e1，\u5176\u4ed6\u5206\u5305\u4e3a0； R：\u4fdd\u7559\u4f4d，\u5fc5\u987b\u7b49\u4e8e0； Type：\u5c06H264\u7684NAL\u5934\u7684\u8d1f\u8f7d\u7c7b\u578bType\u76f4\u63a5\u586b\u5165\u3002<\/p>\n

              +—————+
              \n|0|1|2|3|4|5|6|7|
              \n+-+-+-+-+-+-+-+-+
              \n|S|E|R| Type |
              \n+—————+\n <\/li>\n<\/ul>\n

              \n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              🎄\u56db\u3001\u8bfb\u53d6AAC\u5c01\u88c5\u6210RTP\u5305\u5e76\u53d1\u9001<\/h2>\n

              \u27284.1 \u5b9e\u73b0AAC\u6587\u4ef6\u8bfb\u53d6\u5668<\/h3>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              .aac\u6587\u4ef6\u4fdd\u5b58\u4e86AAC\u7f16\u7801\u7684\u97f3\u9891\u5e27，\u5728ADTS\u683c\u5f0f\u7684aac\u6587\u4ef6\u4e2d，\u6bcf\u4e2a\u97f3\u9891\u5e27\u90fd\u5305\u542b\u4e86\u4e00\u4e2aADTS header\u548cAAC ES\u3002\u800cADTS header\u5360\u4e867\u4e2a\u5b57\u8282，\u4e14\u6700\u5f00\u59cb\u8868\u793a\u540c\u6b65\u7801(syncword)\u768412bit\u7684\u6240\u6709\u7684bit\u4f4d\u90fd\u662f1，\u603b\u662f0xFFF，\u4ee3\u8868\u4e00\u4e2aADTS\u5e27\u7684\u5f00\u59cb，\u4f5c\u4e3a\u5206\u754c\u7b26，\u7528\u4e8e\u540c\u6b65\u6bcf\u5e27\u8d77\u59cb\u4f4d\u7f6e\u3002\u5728\u53ef\u53d8\u5934\u90e8\u6709\u8868\u793aaac\u5e27\u957f\u7684aac_frame_length，\u536013bit\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u4e0b\u9762\u4ee3\u7801\u6765\u67e5\u627e\u540c\u6b65\u7801\u5e76\u83b7\u53d6\u5e27\u957f\u3002 \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u6e05\u695a\u4e0a\u8ff0\u77e5\u8bc6\u540e，\u6211\u4eec\u5c31\u53ef\u4ee5\u4eceaac\u6587\u4ef6\u7ed3\u6784\u4e0d\u65ad\u8bfb\u53d6\u97f3\u9891\u5e27\u6570\u636e\u4e86\u3002<\/p>\n

              \n

              \u27284.2 AAC\u7684RTP\u5934(RTP Header<\/font>)<\/h3>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u4e0a\u56fe\u662fRTP\u5934\u7684\u7ed3\u6784\u56fe，\u5305\u542b\u4e8612\u4e2a\u5b57\u8282\u7684\u5185\u5bb9，\u53ef\u4ee5\u7528\u4ee3\u7801\u5b9a\u4e49\u6210\u5982\u4e0b\u7ed3\u6784\u4f53：<\/p>\n

              struct<\/span> RtpHeader<\/span>
              \n{<\/span>
              \n \/* byte 0 *\/<\/span>
              \n uint8_t<\/span> csrcLen:<\/span>4<\/span>;<\/span>
              \n uint8_t<\/span> extension:<\/span>1<\/span>;<\/span>
              \n uint8_t<\/span> padding:<\/span>1<\/span>;<\/span>
              \n uint8_t<\/span> version:<\/span>2<\/span>;<\/span><\/p>\n

              \/* byte 1 *\/<\/span>
              \n uint8_t<\/span> payloadType:<\/span>7<\/span>;<\/span>
              \n uint8_t<\/span> marker:<\/span>1<\/span>;<\/span><\/p>\n

              \/* bytes 2,3 *\/<\/span>
              \n uint16_t<\/span> seq;<\/span><\/p>\n

              \/* bytes 4-7 *\/<\/span>
              \n uint32_t<\/span> timestamp;<\/span><\/p>\n

              \/* bytes 8-11 *\/<\/span>
              \n uint32_t<\/span> ssrc;<\/span>
              \n}<\/span>;<\/span><\/p>\n

              RTP\u5934\u8fd9\u91cc\u6d89\u53ca\u5230\u4e00\u4e2a \u65f6\u95f4\u6233\u600e\u4e48\u8ba1\u7b97 \u7684\u95ee\u9898，\u9700\u8981\u6ce8\u610f\u7684\u662f，\u8fd9\u4e2a\u65f6\u95f4\u6233\u662f\u4e00\u4e2a \u65f6\u949f\u9891\u7387 \u4e3a\u5355\u4f4d\u7684，\u800c\u4e0d\u662f\u5177\u4f53\u7684\u65f6\u95f4(\u79d2\u3001\u6beb\u79d2\u7b49)\u3002 \u4e00\u822c\u60c5\u51b5\u4e0b，AAC\u6bcf\u4e2a1024\u4e2a\u91c7\u6837\u4e3a\u4e00\u5e27\u3002\u5047\u8bbeAAC\u7684\u65f6\u949f\u9891\u7387\u4e3a48000Hz，\u6240\u4ee5\u4e00\u79d2\u5c31\u6709 48000 \/ 1024 = 47\u5e27，\u90a3\u4e48\u6bcf\u4e00\u5e27\u7684 \u65f6\u95f4\u95f4\u9694 \u5c31\u662f1\/47\u79d2，\u6bcf\u4e00\u5e27\u7684 \u65f6\u949f\u589e\u91cf \u5c31\u662f(48000 \/ 47 = 1021)\u3002 \u90a3\u65f6\u95f4\u6233\u600e\u4e48\u7b97\u5462？\u4e3e\u4e2a\u4f8b\u5b50，\u4ee5\u4e0a\u9762\u8ba1\u7b97\u7684\u6570\u636e，\u7b2c\u4e00\u5e27\u7684RTP\u65f6\u95f4\u6233\u4e3a0\u7684\u8bdd，\u90a3\u4e48\u7b2c\u4e8c\u5e27\u7684RTP\u65f6\u95f4\u6233\u5c31\u662f 1021，\u7b2c\u4e09\u5e27\u7684RTP\u65f6\u95f4\u6233\u5c31\u662f (1021+1021)，\u4f9d\u6b21\u7c7b\u63a8，\u540e\u4e00\u5e27\u7684RTP\u65f6\u95f4\u6233\u5728\u524d\u4e00\u5e27\u7684RTP\u65f6\u95f4\u6233\u7684\u503c\u52a0\u4e0a\u4e00\u4e2a\u65f6\u949f\u589e\u91cf\u3002<\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u6ce8\u610f：RTP\u7684\u65f6\u95f4\u6233\u8ba1\u7b97\u5f88\u91cd\u8981，\u6211\u4e00\u5f00\u59cb\u6ca1\u61c2\u65f6\u95f4\u6233\u7684\u6982\u5ff5，\u5bfc\u81f4\u64ad\u653e\u7684\u58f0\u97f3\u65ad\u65ad\u7eed\u7eed\u7684\u3002<\/p>\n

              \n

              \u27284.3 AAC \u7684 RTP\u8d1f\u8f7d(RTP Payload<\/font>)<\/h3>\n

              RTP\u8d1f\u8f7d\u5e38\u7528\u7684\u6709\u4e24\u79cd\u65b9\u5f0f，\u7b2c\u4e00\u79cd\u662f \u5355\u4e2aNAL\u5355\u5143\u5c01\u5305(Single NAL Unit Packet)；\u7b2c\u4e8c\u79cd\u662f \u5206\u7247\u5355\u5143(Fragmentation Unit) \u3002\u56e0\u4e3a\u4e00\u5e27ADTS\u5e27\u4e00\u822c\u5c0f\u4e8e MTU(\u7f51\u7edc\u6700\u5927\u4f20\u8f93\u5355\u51431500\u5b57\u8282)，\u6240\u4ee5\u5bf9\u4e8eAAC\u7684RTP\u5c01\u5305\u53ea\u9700\u8981\u91c7\u7528 \u5355\u4e2aNAL\u5355\u5143\u5c01\u5305(Single NAL Unit Packet) \u5373\u53ef\u3002<\/p>\n

              \u4f46\u5e76\u4e0d\u662f\u76f4\u63a5\u5c06 ADTS \u5e27\u53bb\u6389ADTS\u5934\u4e4b\u540e\u7684\u6570\u636e \u4f5c\u4e3aRTP\u8d1f\u8f7d，AAC\u7684RTP\u8d1f\u8f7d\u6700\u5f00\u59cb\u67094\u4e2a\u5b57\u8282，\u5176\u4e2d2\u4e2a\u5b57\u8282\u8868\u793aAU\u5934\u957f\u5ea6(AU-headers-length)，13bit\u7684AU size；3bit\u7684AU-Index(-delta) field\u3002\u5982\u4e0b\u56fe：<\/p>\n

              \"\"<\/p>\n

              \u6240\u4ee5，AAC\u7684RTP\u8d1f\u8f7d\u7684\u4e00\u4e2a\u5b57\u8282\u4e3a0x00，\u7b2c\u4e8c\u4e2a\u5b57\u8282\u4e3a0x10，\u7b2c\u4e09\u4e2a\u5b57\u8282\u548c\u7b2c\u56db\u4e2a\u5b57\u8282\u4fdd\u5b58AAC Data\u7684\u5927\u5c0f，\u6700\u591a\u53ea\u80fd\u4fdd\u5b5813bit（\u4e5f\u5c31\u662f\u8bf4，\u7b2c\u4e09\u4e2a\u5b57\u8282\u4fdd\u5b58\u6570\u636e\u5927\u5c0f\u7684\u9ad8\u516b\u4f4d，\u7b2c\u56db\u4e2a\u5b57\u8282\u7684\u9ad85\u4f4d\u4fdd\u5b58\u6570\u636e\u5927\u5c0f\u7684\u4f4e5\u4f4d）\u3002<\/p>\n

              \u53c2\u8003\u4e0b\u5217\u4ee3\u7801：<\/p>\n

              rtpPacket-><\/span>payload[<\/span>0<\/span>]<\/span> =<\/span> 0x00<\/span>;<\/span>
              \nrtpPacket-><\/span>payload[<\/span>1<\/span>]<\/span> =<\/span> 0x10<\/span>;<\/span>
              \nrtpPacket-><\/span>payload[<\/span>2<\/span>]<\/span> =<\/span> (<\/span>frameSize &<\/span> 0x1FE0<\/span>)<\/span> >><\/span> 5<\/span>;<\/span> \/\/ \u9ad88\u4f4d<\/span>
              \nrtpPacket-><\/span>payload[<\/span>3<\/span>]<\/span> =<\/span> (<\/span>frameSize &<\/span> 0x1F<\/span>)<\/span> <<<\/span> 3<\/span>;<\/span> \/\/ \u4f4e5\u4f4d<\/span><\/p>\n

              \u8fd94\u4e2a\u5b57\u8282\u4e4b\u540e\u5c31\u662f ADTS \u5e27\u53bb\u6389ADTS\u5934\u4e4b\u540e\u7684\u6570\u636e \u4e86\u3002<\/p>\n

              \n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              🎄\u4e94\u3001\u540c\u65f6\u53d1\u9001H264\u3001AAC\u7684RTSP\u670d\u52a1\u5668\u5b9e\u73b0\u6e90\u7801<\/h2>\n

              \u4ee3\u7801： 1\u3001H264Reader.h<\/p>\n

              \/**
              \n * @file H264Reader.h
              \n * @author https:\/\/blog.csdn.net\/wkd_007
              \n * @brief
              \n * @version 0.1
              \n * @date 2025-06-24
              \n *
              \n * @copyright Copyright (c) 2025
              \n *
              \n *\/<\/span>
              \n#<\/span>ifndef<\/span> __H264_READER_H__<\/span><\/span>
              \n#<\/span>define<\/span> __H264_READER_H__<\/span><\/span><\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

              #<\/span>define<\/span> MAX_STARTCODE_LEN<\/span> (<\/span>4<\/span>)<\/span><\/span><\/span><\/p>\n

              typedef<\/span> enum<\/span>
              \n{<\/span>
              \n FALSE,<\/span>
              \n TRUE,<\/span>
              \n}<\/span> BOOL;<\/span><\/p>\n

              typedef<\/span> enum<\/span>
              \n{<\/span>
              \n H264_NALU_TYPE_SLICE =<\/span> 1<\/span>,<\/span>
              \n H264_NALU_TYPE_DPA =<\/span> 2<\/span>,<\/span>
              \n H264_NALU_TYPE_DPB =<\/span> 3<\/span>,<\/span>
              \n H264_NALU_TYPE_DPC =<\/span> 4<\/span>,<\/span>
              \n H264_NALU_TYPE_IDR =<\/span> 5<\/span>,<\/span>
              \n H264_NALU_TYPE_SEI =<\/span> 6<\/span>,<\/span>
              \n H264_NALU_TYPE_SPS =<\/span> 7<\/span>,<\/span>
              \n H264_NALU_TYPE_PPS =<\/span> 8<\/span>,<\/span>
              \n H264_NALU_TYPE_AUD =<\/span> 9<\/span>,<\/span>
              \n H264_NALU_TYPE_EOSEQ =<\/span> 10<\/span>,<\/span>
              \n H264_NALU_TYPE_EOSTREAM =<\/span> 11<\/span>,<\/span>
              \n H264_NALU_TYPE_FILL =<\/span> 12<\/span>,<\/span>
              \n}<\/span> H264NaluType;<\/span><\/p>\n

              typedef<\/span> enum<\/span>
              \n{<\/span>
              \n H264_NALU_PRIORITY_DISPOSABLE =<\/span> 0<\/span>,<\/span>
              \n H264_NALU_PRIRITY_LOW =<\/span> 1<\/span>,<\/span>
              \n H264_NALU_PRIORITY_HIGH =<\/span> 2<\/span>,<\/span>
              \n H264_NALU_PRIORITY_HIGHEST =<\/span> 3<\/span>
              \n}<\/span> H264NaluPriority;<\/span><\/p>\n

              typedef<\/span> struct<\/span>
              \n{<\/span>
              \n int<\/span> startcode_len;<\/span> \/\/! 4 for parameter sets and first slice in picture, 3 for everything else (suggested)<\/span>
              \n int<\/span> forbidden_bit;<\/span> \/\/! should be always FALSE<\/span>
              \n int<\/span> nal_reference_idc;<\/span> \/\/! H264_NALU_PRIORITY_xxxx<\/span>
              \n int<\/span> nal_unit_type;<\/span> \/\/! H264_NALU_TYPE_xxxx<\/span>
              \n BOOL isLastFrame;<\/span> \/\/!<\/span>
              \n int<\/span> frame_len;<\/span> \/\/!<\/span>
              \n unsigned<\/span> char<\/span> *<\/span>pFrameBuf;<\/span> \/\/!<\/span>
              \n}<\/span> H264Frame_t;<\/span><\/p>\n

              typedef<\/span> struct<\/span> H264ReaderInfo_s<\/span>
              \n{<\/span>
              \n FILE *<\/span>pFileFd;<\/span>
              \n int<\/span> frameNum;<\/span>
              \n}<\/span> H264ReaderInfo_t;<\/span><\/p>\n

              int<\/span> H264_FileOpen<\/span>(<\/span>char<\/span> *<\/span>fileName,<\/span> H264ReaderInfo_t *<\/span>pH264Info)<\/span>;<\/span>
              \nint<\/span> H264_FileClose<\/span>(<\/span>H264ReaderInfo_t *<\/span>pH264Info)<\/span>;<\/span>
              \nint<\/span> H264_GetFrame<\/span>(<\/span>H264Frame_t *<\/span>pH264Frame,<\/span> H264ReaderInfo_t *<\/span>pH264Info)<\/span>;<\/span>
              \nBOOL H264_IsEndOfFile<\/span>(<\/span>const<\/span> H264ReaderInfo_t *<\/span>pH264Info)<\/span>;<\/span>
              \nvoid<\/span> H264_SeekFile<\/span>(<\/span>H264ReaderInfo_t *<\/span>pH264Info)<\/span>;<\/span><\/p>\n

              #<\/span>endif<\/span> \/\/ __H264_READER_H__<\/span><\/span><\/p>\n

              2\u3001H264Reader.c<\/p>\n

              \/**
              \n * @file H264Reader.c
              \n * @author https:\/\/blog.csdn.net\/wkd_007
              \n * @brief
              \n * @version 0.1
              \n * @date 2025-06-30
              \n *
              \n * @copyright Copyright (c) 2025
              \n *
              \n *\/<\/span>
              \n#<\/span>include<\/span> "H264Reader.h"<\/span><\/span>
              \n#<\/span>include<\/span> <stdlib.h><\/span><\/span><\/p>\n

              #<\/span>define<\/span> MAX_FRAME_LEN<\/span> (<\/span>1920<\/span> *<\/span> 1080<\/span> *<\/span> 1.5<\/span>)<\/span> <\/span>\/\/ \u4e00\u5e27\u6570\u636e\u6700\u5927\u5b57\u8282\u6570<\/span><\/span><\/p>\n

              static<\/span> BOOL findStartCode_001<\/span>(<\/span>unsigned<\/span> char<\/span> *<\/span>Buf)<\/span>
              \n{<\/span>
              \n \/\/ printf("[%d %d %d]\\\\n", Buf[0], Buf[1], Buf[2]);<\/span>
              \n return<\/span> (<\/span>Buf[<\/span>0<\/span>]<\/span> ==<\/span> 0<\/span> &&<\/span> Buf[<\/span>1<\/span>]<\/span> ==<\/span> 0<\/span> &&<\/span> Buf[<\/span>2<\/span>]<\/span> ==<\/span> 1<\/span>)<\/span>;<\/span> \/\/ 0x000001 ?<\/span>
              \n}<\/span><\/p>\n

              static<\/span> BOOL findStartCode_0001<\/span>(<\/span>unsigned<\/span> char<\/span> *<\/span>Buf)<\/span>
              \n{<\/span>
              \n \/\/ printf("[%d %d %d %d]\\\\n", Buf[0], Buf[1], Buf[2], Buf[3]);<\/span>
              \n return<\/span> (<\/span>Buf[<\/span>0<\/span>]<\/span> ==<\/span> 0<\/span> &&<\/span> Buf[<\/span>1<\/span>]<\/span> ==<\/span> 0<\/span> &&<\/span> Buf[<\/span>2<\/span>]<\/span> ==<\/span> 0<\/span> &&<\/span> Buf[<\/span>3<\/span>]<\/span> ==<\/span> 1<\/span>)<\/span>;<\/span> \/\/ 0x00000001 ?<\/span>
              \n}<\/span><\/p>\n

              int<\/span> H264_FileOpen<\/span>(<\/span>char<\/span> *<\/span>fileName,<\/span> H264ReaderInfo_t *<\/span>pH264Info)<\/span>
              \n{<\/span>
              \n pH264Info-><\/span>pFileFd =<\/span> fopen<\/span>(<\/span>fileName,<\/span> "rb+"<\/span>)<\/span>;<\/span>
              \n if<\/span> (<\/span>pH264Info-><\/span>pFileFd ==<\/span> NULL<\/span>)<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"[%s %d]Open file error\\\\n"<\/span>,<\/span> __FILE__<\/span>,<\/span> __LINE__<\/span>)<\/span>;<\/span>
              \n return<\/span> –<\/span>1<\/span>;<\/span>
              \n }<\/span>
              \n pH264Info-><\/span>frameNum =<\/span> 0<\/span>;<\/span>
              \n return<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              int<\/span> H264_FileClose<\/span>(<\/span>H264ReaderInfo_t *<\/span>pH264Info)<\/span>
              \n{<\/span>
              \n if<\/span> (<\/span>pH264Info-><\/span>pFileFd !=<\/span> NULL<\/span>)<\/span>
              \n {<\/span>
              \n fclose<\/span>(<\/span>pH264Info-><\/span>pFileFd)<\/span>;<\/span>
              \n pH264Info-><\/span>pFileFd =<\/span> NULL<\/span>;<\/span>
              \n }<\/span>
              \n return<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              BOOL H264_IsEndOfFile<\/span>(<\/span>const<\/span> H264ReaderInfo_t *<\/span>pH264Info)<\/span>
              \n{<\/span>
              \n return<\/span> feof<\/span>(<\/span>pH264Info-><\/span>pFileFd)<\/span>;<\/span>
              \n}<\/span><\/p>\n

              void<\/span> H264_SeekFile<\/span>(<\/span>H264ReaderInfo_t *<\/span>pH264Info)<\/span>
              \n{<\/span>
              \n fseek<\/span>(<\/span>pH264Info-><\/span>pFileFd,<\/span> 0<\/span>,<\/span> SEEK_SET<\/span>)<\/span>;<\/span>
              \n pH264Info-><\/span>frameNum =<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/**
              \n * @brief \u83b7\u53d6\u4e00\u9635h264\u89c6\u9891\u5e27
              \n *
              \n * @param pH264Frame ：\u8f93\u51fa\u53c2\u6570，\u4f7f\u7528\u540e pH264Frame->pFrameBuf \u9700\u8981free
              \n * @param pH264Info ：\u8f93\u5165\u53c2\u6570
              \n * @return int
              \n *\/<\/span>
              \nint<\/span> H264_GetFrame<\/span>(<\/span>H264Frame_t *<\/span>pH264Frame,<\/span> H264ReaderInfo_t *<\/span>pH264Info)<\/span>
              \n{<\/span>
              \n int<\/span> rewind =<\/span> 0<\/span>;<\/span>
              \n if<\/span> (<\/span>pH264Info-><\/span>pFileFd ==<\/span> NULL<\/span>)<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"[%s %d]pFileFd error\\\\n"<\/span>,<\/span> __FILE__<\/span>,<\/span> __LINE__<\/span>)<\/span>;<\/span>
              \n return<\/span> –<\/span>1<\/span>;<\/span>
              \n }<\/span><\/p>\n

              \/\/ 1.\u8bfb\u53d6\u5e27\u6570\u636e<\/span>
              \n \/\/ unsigned char *pFrame = (unsigned char *)malloc(MAX_FRAME_LEN);<\/span>
              \n unsigned<\/span> char<\/span> *<\/span>pFrame =<\/span> pH264Frame-><\/span>pFrameBuf;<\/span>
              \n int<\/span> readLen =<\/span> fread<\/span>(<\/span>pFrame,<\/span> 1<\/span>,<\/span> MAX_FRAME_LEN,<\/span> pH264Info-><\/span>pFileFd)<\/span>;<\/span>
              \n if<\/span> (<\/span>readLen <=<\/span> 0<\/span>)<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"[%s %d]fread error\\\\n"<\/span>,<\/span> __FILE__<\/span>,<\/span> __LINE__<\/span>)<\/span>;<\/span>
              \n \/\/ free(pFrame);<\/span>
              \n return<\/span> –<\/span>1<\/span>;<\/span>
              \n }<\/span><\/p>\n

              \/\/ 2.\u67e5\u627e\u5f53\u524d\u5e27\u5f00\u59cb\u7801<\/span>
              \n int<\/span> i =<\/span> 0<\/span>;<\/span>
              \n for<\/span> (<\/span>;<\/span> i <<\/span> readLen –<\/span> MAX_STARTCODE_LEN;<\/span> i++<\/span>)<\/span>
              \n {<\/span>
              \n if<\/span> (<\/span>!<\/span>findStartCode_0001<\/span>(<\/span>&<\/span>pFrame[<\/span>i]<\/span>)<\/span>)<\/span>
              \n {<\/span>
              \n if<\/span> (<\/span>!<\/span>findStartCode_001<\/span>(<\/span>&<\/span>pFrame[<\/span>i]<\/span>)<\/span>)<\/span>
              \n {<\/span>
              \n continue<\/span>;<\/span>
              \n }<\/span>
              \n else<\/span>
              \n {<\/span>
              \n pH264Frame-><\/span>startcode_len =<\/span> 3<\/span>;<\/span>
              \n break<\/span>;<\/span>
              \n }<\/span>
              \n }<\/span>
              \n else<\/span>
              \n {<\/span>
              \n pH264Frame-><\/span>startcode_len =<\/span> 4<\/span>;<\/span>
              \n break<\/span>;<\/span>
              \n }<\/span>
              \n }<\/span>
              \n if<\/span> (<\/span>i !=<\/span> 0<\/span>)<\/span> \/\/ \u4e0d\u662f\u5e27\u5f00\u5934，\u504f\u79fb\u5230\u5e27\u5f00\u5934\u91cd\u65b0\u8bfb<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"[%s %d]startcode error, i=%d\\\\n"<\/span>,<\/span> __FILE__<\/span>,<\/span> __LINE__<\/span>,<\/span> i)<\/span>;<\/span>
              \n \/\/ free(pFrame);<\/span>
              \n rewind =<\/span> (<\/span>–<\/span>(<\/span>readLen –<\/span> i)<\/span>)<\/span>;<\/span>
              \n fseek<\/span>(<\/span>pH264Info-><\/span>pFileFd,<\/span> rewind,<\/span> SEEK_CUR<\/span>)<\/span>;<\/span>
              \n return<\/span> –<\/span>1<\/span>;<\/span>
              \n }<\/span><\/p>\n

              \/\/ 3.\u67e5\u627e\u4e0b\u4e00\u5e27\u5f00\u59cb\u7801<\/span>
              \n i +=<\/span> MAX_STARTCODE_LEN;<\/span>
              \n for<\/span> (<\/span>;<\/span> i <<\/span> readLen –<\/span> MAX_STARTCODE_LEN;<\/span> i++<\/span>)<\/span>
              \n {<\/span>
              \n if<\/span> (<\/span>!<\/span>findStartCode_0001<\/span>(<\/span>&<\/span>pFrame[<\/span>i]<\/span>)<\/span>)<\/span>
              \n {<\/span>
              \n if<\/span> (<\/span>!<\/span>findStartCode_001<\/span>(<\/span>&<\/span>pFrame[<\/span>i]<\/span>)<\/span>)<\/span>
              \n {<\/span>
              \n continue<\/span>;<\/span>
              \n }<\/span>
              \n else<\/span>
              \n {<\/span>
              \n break<\/span>;<\/span>
              \n }<\/span>
              \n }<\/span>
              \n else<\/span>
              \n {<\/span>
              \n break<\/span>;<\/span>
              \n }<\/span>
              \n }<\/span>
              \n if<\/span> (<\/span>i ==<\/span> (<\/span>readLen –<\/span> MAX_STARTCODE_LEN)<\/span>)<\/span>
              \n {<\/span>
              \n if<\/span> (<\/span>!<\/span>feof<\/span>(<\/span>pH264Info-><\/span>pFileFd)<\/span>)<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"[%s %d]MAX_FRAME_LEN too small\\\\n"<\/span>,<\/span> __FILE__<\/span>,<\/span> __LINE__<\/span>)<\/span>;<\/span>
              \n \/\/ free(pFrame);<\/span>
              \n return<\/span> –<\/span>1<\/span>;<\/span>
              \n }<\/span>
              \n else<\/span>
              \n {<\/span>
              \n pH264Frame-><\/span>isLastFrame =<\/span> TRUE;<\/span>
              \n }<\/span>
              \n }<\/span><\/p>\n

              \/\/ 4.\u586b\u6570\u636e<\/span>
              \n pH264Frame-><\/span>forbidden_bit =<\/span> pFrame[<\/span>pH264Frame-><\/span>startcode_len]<\/span> &<\/span> 0x80<\/span>;<\/span> \/\/ 1 bit<\/span>
              \n pH264Frame-><\/span>nal_reference_idc =<\/span> pFrame[<\/span>pH264Frame-><\/span>startcode_len]<\/span> &<\/span> 0x60<\/span>;<\/span> \/\/ 2 bit<\/span>
              \n pH264Frame-><\/span>nal_unit_type =<\/span> pFrame[<\/span>pH264Frame-><\/span>startcode_len]<\/span> &<\/span> 0x1f<\/span>;<\/span> \/\/ 5 bit, naluType \u662f\u5f00\u59cb\u7801\u540e\u4e00\u4e2a\u5b57\u8282\u7684\u6700\u540e 5 \u4f4d<\/span>
              \n \/\/ pH264Frame->pFrameBuf = pFrame;<\/span>
              \n pH264Frame-><\/span>frame_len =<\/span> i;<\/span><\/p>\n

              \/\/ 5.\u6587\u4ef6\u8bfb\u53d6\u6307\u9488\u504f\u79fb\u5230\u4e0b\u4e00\u5e27\u4f4d\u7f6e<\/span>
              \n rewind =<\/span> (<\/span>–<\/span>(<\/span>readLen –<\/span> i)<\/span>)<\/span>;<\/span>
              \n fseek<\/span>(<\/span>pH264Info-><\/span>pFileFd,<\/span> rewind,<\/span> SEEK_CUR<\/span>)<\/span>;<\/span><\/p>\n

              pH264Info-><\/span>frameNum++<\/span>;<\/span><\/p>\n

              return<\/span> pH264Frame-><\/span>frame_len;<\/span>
              \n}<\/span><\/p>\n

              3\u3001aacReader.h<\/p>\n

              \/**
              \n * @file aacReader.h
              \n * @author : https:\/\/blog.csdn.net\/wkd_007
              \n * @brief
              \n * @version 0.1
              \n * @date 2025-06-30
              \n *
              \n * @copyright Copyright (c) 2025
              \n *
              \n *\/<\/span>
              \n#<\/span>ifndef<\/span>__AAC_READER_H__<\/span><\/span>
              \n#<\/span>define<\/span> __AAC_READER_H__<\/span><\/span><\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span><\/p>\n

              #<\/span>define<\/span> ADTS_HEADER_LEN<\/span>(<\/span>7<\/span>)<\/span><\/span><\/span><\/p>\n

              typedef<\/span> struct<\/span>
              \n{<\/span>
              \nint<\/span> frame_len;<\/span> \/\/! <\/span>
              \nunsigned<\/span> char<\/span> *<\/span>pFrameBuf;<\/span> \/\/! <\/span>
              \n}<\/span> AACFrame_t;<\/span><\/p>\n

              typedef<\/span> struct<\/span> AACReaderInfo_s<\/span>
              \n{<\/span>
              \nFILE *<\/span>pFileFd;<\/span>
              \n}<\/span>AACReaderInfo_t;<\/span><\/p>\n

              int<\/span> AAC_FileOpen<\/span>(<\/span>char<\/span> *<\/span>fileName,<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>;<\/span>
              \nint<\/span> AAC_FileClose<\/span>(<\/span>AACReaderInfo_t *<\/span>pAACInfo)<\/span>;<\/span>
              \nint<\/span> AAC_GetADTSFrame<\/span>(<\/span>AACFrame_t *<\/span>pAACFrame,<\/span> const<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>;<\/span>
              \nint<\/span> AAC_IsEndOfFile<\/span>(<\/span>const<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>;<\/span>
              \nvoid<\/span> AAC_SeekFile<\/span>(<\/span>const<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>;<\/span><\/p>\n

              #<\/span>endif<\/span> \/\/ __AAC_READER_H__<\/span><\/span><\/p>\n

              4\u3001aacReader.c<\/p>\n

              \/**
              \n * @file aacReader.c
              \n * @author : https:\/\/blog.csdn.net\/wkd_007
              \n * @brief
              \n * @version 0.1
              \n * @date 2025-06-30
              \n *
              \n * @copyright Copyright (c) 2025
              \n *
              \n *\/<\/span>
              \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
              \n#<\/span>include<\/span> <string.h><\/span><\/span>
              \n#<\/span>include<\/span> "aacReader.h"<\/span><\/span><\/p>\n

              #<\/span>define<\/span> MAX_FRAME_LEN<\/span> (<\/span>1024<\/span>*<\/span>1024<\/span>)<\/span><\/span>\/\/ \u4e00\u5e27\u6570\u636e\u6700\u5927\u5b57\u8282\u6570<\/span><\/span>
              \n#<\/span>define<\/span> MAX_SYNCCODE_LEN<\/span> (<\/span>3<\/span>)<\/span> <\/span>\/\/ \u540c\u6b65\u7801\u5b57\u8282\u4e2a\u6570 2025-05-21 17:45:06<\/span><\/span><\/p>\n

              static<\/span> int<\/span> findSyncCode_0xFFF<\/span>(<\/span>unsigned<\/span> char<\/span> *<\/span>Buf,<\/span> int<\/span> *<\/span>size)<\/span>
              \n{<\/span>
              \nif<\/span>(<\/span>(<\/span>Buf[<\/span>0<\/span>]<\/span> ==<\/span> 0xff<\/span>)<\/span> &&<\/span> (<\/span>(<\/span>Buf[<\/span>1<\/span>]<\/span> &<\/span> 0xf0<\/span>)<\/span> ==<\/span> 0xf0<\/span>)<\/span> )<\/span>\/\/0xFF F，\u524d12bit\u90fd\u4e3a1 2025-05-21 17:46:57<\/span>
              \n {<\/span>
              \n *<\/span>size |=<\/span> (<\/span>(<\/span>Buf[<\/span>3<\/span>]<\/span> &<\/span> 0x03<\/span>)<\/span> <<<\/span>11<\/span>)<\/span>;<\/span> \/\/high 2 bit<\/span>
              \n *<\/span>size |=<\/span> Buf[<\/span>4<\/span>]<\/span><<<\/span>3<\/span>;<\/span> \/\/middle 8 bit<\/span>
              \n *<\/span>size |=<\/span> (<\/span>(<\/span>Buf[<\/span>5<\/span>]<\/span> &<\/span> 0xe0<\/span>)<\/span>>><\/span>5<\/span>)<\/span>;<\/span> \/\/low 3bit<\/span>
              \n return<\/span> 1<\/span>;<\/span>
              \n }<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              int<\/span> AAC_FileOpen<\/span>(<\/span>char<\/span> *<\/span>fileName,<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>
              \n{<\/span>
              \npAACInfo-><\/span>pFileFd =<\/span> fopen<\/span>(<\/span>fileName,<\/span> "rb+"<\/span>)<\/span>;<\/span>
              \nif<\/span> (<\/span>pAACInfo-><\/span>pFileFd==<\/span>NULL<\/span>)<\/span>{<\/span>
              \nprintf<\/span>(<\/span>"[%s %d]Open file error\\\\n"<\/span>,<\/span>__FILE__<\/span>,<\/span>__LINE__<\/span>)<\/span>;<\/span>
              \nreturn<\/span> –<\/span>1<\/span>;<\/span>
              \n}<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              int<\/span> AAC_FileClose<\/span>(<\/span>AACReaderInfo_t *<\/span>pAACInfo)<\/span>
              \n{<\/span>
              \nif<\/span> (<\/span>pAACInfo-><\/span>pFileFd !=<\/span> NULL<\/span>)<\/span> {<\/span>
              \nfclose<\/span>(<\/span>pAACInfo-><\/span>pFileFd)<\/span>;<\/span>
              \npAACInfo-><\/span>pFileFd =<\/span> NULL<\/span>;<\/span>
              \n}<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              int<\/span> AAC_IsEndOfFile<\/span>(<\/span>const<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>
              \n{<\/span>
              \nreturn<\/span> feof<\/span>(<\/span>pAACInfo-><\/span>pFileFd)<\/span>;<\/span>
              \n}<\/span><\/p>\n

              void<\/span> AAC_SeekFile<\/span>(<\/span>const<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>
              \n{<\/span>
              \nfseek<\/span>(<\/span>pAACInfo-><\/span>pFileFd,<\/span>0<\/span>,<\/span>SEEK_SET<\/span>)<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/**
              \n * @brief
              \n *
              \n * @param pAACFrame :\u8f93\u51fa\u53c2\u6570，\u4f7f\u7528\u540e pAACInfo->pFrameBuf \u9700\u8981free
              \n * @param pAACInfo
              \n * @return int
              \n *\/<\/span>
              \nint<\/span> AAC_GetADTSFrame<\/span>(<\/span>AACFrame_t *<\/span>pAACFrame,<\/span> const<\/span> AACReaderInfo_t *<\/span>pAACInfo)<\/span>
              \n{<\/span>
              \n int<\/span> rewind =<\/span> 0<\/span>;<\/span>
              \nif<\/span> (<\/span>pAACInfo-><\/span>pFileFd==<\/span>NULL<\/span>)<\/span>{<\/span>
              \nprintf<\/span>(<\/span>"[%s %d]pFileFd error\\\\n"<\/span>,<\/span>__FILE__<\/span>,<\/span>__LINE__<\/span>)<\/span>;<\/span>
              \nreturn<\/span> –<\/span>1<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/\/ 1.\u5148\u8bfb\u53d6ADTS\u5e27\u5934(7\u4e2a\u5b57\u8282)<\/span>
              \nunsigned<\/span> char<\/span>*<\/span> pFrame =<\/span> (<\/span>unsigned<\/span> char<\/span>*<\/span>)<\/span>malloc<\/span>(<\/span>MAX_FRAME_LEN)<\/span>;<\/span>
              \nint<\/span> readLen =<\/span> fread<\/span>(<\/span>pFrame,<\/span> 1<\/span>,<\/span> ADTS_HEADER_LEN,<\/span> pAACInfo-><\/span>pFileFd)<\/span>;<\/span>
              \nif<\/span>(<\/span>readLen <=<\/span> 0<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"[%s %d]fread error readLen=%d\\\\n"<\/span>,<\/span>__FILE__<\/span>,<\/span>__LINE__<\/span>,<\/span>readLen)<\/span>;<\/span>
              \nfree<\/span>(<\/span>pFrame)<\/span>;<\/span>
              \nreturn<\/span> –<\/span>1<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/\/ 2.\u67e5\u627e\u5f53\u524d\u5e27\u540c\u6b65\u7801，\u83b7\u53d6\u5e27\u957f\u5ea6<\/span>
              \n int<\/span> i=<\/span>0<\/span>;<\/span>
              \n int<\/span> size =<\/span> 0<\/span>;<\/span>
              \nfor<\/span>(<\/span>;<\/span> i<<\/span>readLen–<\/span>MAX_SYNCCODE_LEN;<\/span> i++<\/span>)<\/span>
              \n{<\/span>
              \nif<\/span>(<\/span>!<\/span>findSyncCode_0xFFF<\/span>(<\/span>&<\/span>pFrame[<\/span>i]<\/span>,<\/span> &<\/span>size)<\/span>)<\/span>
              \n{<\/span>
              \ncontinue<\/span>;<\/span>
              \n}<\/span>
              \nelse<\/span>
              \n{<\/span>
              \nbreak<\/span>;<\/span>
              \n}<\/span>
              \n}<\/span>
              \nif<\/span>(<\/span>i!=<\/span>0<\/span>)<\/span>\/\/ \u4e0d\u662f\u5e27\u5f00\u5934，\u504f\u79fb\u5230\u5e27\u5f00\u5934\u91cd\u65b0\u8bfb<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"[%s %d]synccode error, i=%d\\\\n"<\/span>,<\/span>__FILE__<\/span>,<\/span>__LINE__<\/span>,<\/span>i)<\/span>;<\/span>
              \nfree<\/span>(<\/span>pFrame)<\/span>;<\/span>
              \nrewind =<\/span> (<\/span>–<\/span>(<\/span>readLen–<\/span>i)<\/span>)<\/span>;<\/span>
              \nfseek<\/span> (<\/span>pAACInfo-><\/span>pFileFd,<\/span> rewind,<\/span> SEEK_CUR<\/span>)<\/span>;<\/span>
              \nreturn<\/span> –<\/span>1<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/\/ 3.\u8bfb\u53d6ADTS\u5e27\u6570\u636e 2025-05-22 21:44:39<\/span>
              \n readLen =<\/span> fread<\/span>(<\/span>pFrame+<\/span>ADTS_HEADER_LEN,<\/span> 1<\/span>,<\/span> size–<\/span>ADTS_HEADER_LEN,<\/span> pAACInfo-><\/span>pFileFd)<\/span>;<\/span>
              \n if<\/span>(<\/span>readLen <=<\/span> 0<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"[%s %d]fread error\\\\n"<\/span>,<\/span>__FILE__<\/span>,<\/span>__LINE__<\/span>)<\/span>;<\/span>
              \nfree<\/span>(<\/span>pFrame)<\/span>;<\/span>
              \nreturn<\/span> –<\/span>1<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/\/ 4.\u586b\u6570\u636e<\/span>
              \n pAACFrame-><\/span>frame_len =<\/span> size;<\/span>
              \n pAACFrame-><\/span>pFrameBuf =<\/span> pFrame;<\/span><\/p>\n

              return<\/span> pAACFrame-><\/span>frame_len;<\/span>
              \n}<\/span><\/p>\n

              5\u3001rtp.h<\/p>\n

              #<\/span>ifndef<\/span> _RTP_H_<\/span><\/span>
              \n#<\/span>define<\/span> _RTP_H_<\/span><\/span>
              \n#<\/span>include<\/span> <stdint.h><\/span><\/span><\/p>\n

              #<\/span>define<\/span> RTP_VESION<\/span> 2<\/span><\/span><\/span><\/p>\n

              #<\/span>define<\/span> RTP_PAYLOAD_TYPE_H264<\/span> 96<\/span><\/span><\/span>
              \n#<\/span>define<\/span> RTP_PAYLOAD_TYPE_AAC<\/span> 97<\/span><\/span><\/span><\/p>\n

              #<\/span>define<\/span> RTP_HEADER_SIZE<\/span> 12<\/span><\/span><\/span>
              \n#<\/span>define<\/span> RTP_MAX_PKT_SIZE<\/span> 1400<\/span><\/span><\/span><\/p>\n

              \/*
              \n *
              \n * 0 1 2 3
              \n * 7 6 5 4 3 2 1 0|7 6 5 4 3 2 1 0|7 6 5 4 3 2 1 0|7 6 5 4 3 2 1 0
              \n * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
              \n * |V=2|P|X| CC |M| PT | sequence number |
              \n * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
              \n * | timestamp |
              \n * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
              \n * | synchronization source (SSRC) identifier |
              \n * +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
              \n * | contributing source (CSRC) identifiers |
              \n * : …. :
              \n * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
              \n *
              \n *\/<\/span>
              \nstruct<\/span> RtpHeader<\/span>
              \n{<\/span>
              \n \/* byte 0 *\/<\/span>
              \n uint8_t<\/span> csrcLen:<\/span>4<\/span>;<\/span>
              \n uint8_t<\/span> extension:<\/span>1<\/span>;<\/span>
              \n uint8_t<\/span> padding:<\/span>1<\/span>;<\/span>
              \n uint8_t<\/span> version:<\/span>2<\/span>;<\/span><\/p>\n

              \/* byte 1 *\/<\/span>
              \n uint8_t<\/span> payloadType:<\/span>7<\/span>;<\/span>
              \n uint8_t<\/span> marker:<\/span>1<\/span>;<\/span><\/p>\n

              \/* bytes 2,3 *\/<\/span>
              \n uint16_t<\/span> seq;<\/span><\/p>\n

              \/* bytes 4-7 *\/<\/span>
              \n uint32_t<\/span> timestamp;<\/span><\/p>\n

              \/* bytes 8-11 *\/<\/span>
              \n uint32_t<\/span> ssrc;<\/span>
              \n}<\/span>;<\/span><\/p>\n

              struct<\/span> RtpPacket<\/span>
              \n{<\/span>
              \n struct<\/span> RtpHeader<\/span> rtpHeader;<\/span>
              \n uint8_t<\/span> payload[<\/span>0<\/span>]<\/span>;<\/span>
              \n}<\/span>;<\/span><\/p>\n

              void<\/span> rtpHeaderInit<\/span>(<\/span>struct<\/span> RtpPacket<\/span>*<\/span> rtpPacket,<\/span> uint8_t<\/span> csrcLen,<\/span> uint8_t<\/span> extension,<\/span>
              \n uint8_t<\/span> padding,<\/span> uint8_t<\/span> version,<\/span> uint8_t<\/span> payloadType,<\/span> uint8_t<\/span> marker,<\/span>
              \n uint16_t<\/span> seq,<\/span> uint32_t<\/span> timestamp,<\/span> uint32_t<\/span> ssrc)<\/span>;<\/span>
              \nint<\/span> rtpSendPacket<\/span>(<\/span>int<\/span> socket,<\/span> char<\/span>*<\/span> ip,<\/span> int16_t<\/span> port,<\/span> struct<\/span> RtpPacket<\/span>*<\/span> rtpPacket,<\/span> uint32_t<\/span> dataSize)<\/span>;<\/span><\/p>\n

              #<\/span>endif<\/span> \/\/_RTP_H_<\/span><\/span><\/p>\n

              6\u3001rtp.c<\/p>\n

              #<\/span>include<\/span> <sys\/types.h><\/span><\/span>
              \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
              \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
              \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
              \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span><\/p>\n

              #<\/span>include<\/span> "rtp.h"<\/span><\/span><\/p>\n

              void<\/span> rtpHeaderInit<\/span>(<\/span>struct<\/span> RtpPacket<\/span>*<\/span> rtpPacket,<\/span> uint8_t<\/span> csrcLen,<\/span> uint8_t<\/span> extension,<\/span>
              \n uint8_t<\/span> padding,<\/span> uint8_t<\/span> version,<\/span> uint8_t<\/span> payloadType,<\/span> uint8_t<\/span> marker,<\/span>
              \n uint16_t<\/span> seq,<\/span> uint32_t<\/span> timestamp,<\/span> uint32_t<\/span> ssrc)<\/span>
              \n{<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>csrcLen =<\/span> csrcLen;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>extension =<\/span> extension;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>padding =<\/span> padding;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>version =<\/span> version;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>payloadType =<\/span> payloadType;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>marker =<\/span> marker;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>seq =<\/span> seq;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>timestamp =<\/span> timestamp;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>ssrc =<\/span> ssrc;<\/span>
              \n}<\/span><\/p>\n

              int<\/span> rtpSendPacket<\/span>(<\/span>int<\/span> socket,<\/span> char<\/span>*<\/span> ip,<\/span> int16_t<\/span> port,<\/span> struct<\/span> RtpPacket<\/span>*<\/span> rtpPacket,<\/span> uint32_t<\/span> dataSize)<\/span>
              \n{<\/span>
              \n struct<\/span> sockaddr_in<\/span> addr;<\/span>
              \n int<\/span> ret;<\/span><\/p>\n

              addr.<\/span>sin_family =<\/span> AF_INET;<\/span>
              \n addr.<\/span>sin_port =<\/span> htons<\/span>(<\/span>port)<\/span>;<\/span>
              \n addr.<\/span>sin_addr.<\/span>s_addr =<\/span> inet_addr<\/span>(<\/span>ip)<\/span>;<\/span><\/p>\n

              rtpPacket-><\/span>rtpHeader.<\/span>seq =<\/span> htons<\/span>(<\/span>rtpPacket-><\/span>rtpHeader.<\/span>seq)<\/span>;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>timestamp =<\/span> htonl<\/span>(<\/span>rtpPacket-><\/span>rtpHeader.<\/span>timestamp)<\/span>;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>ssrc =<\/span> htonl<\/span>(<\/span>rtpPacket-><\/span>rtpHeader.<\/span>ssrc)<\/span>;<\/span><\/p>\n

              ret =<\/span> sendto<\/span>(<\/span>socket,<\/span> (<\/span>void<\/span>*<\/span>)<\/span>rtpPacket,<\/span> dataSize+<\/span>RTP_HEADER_SIZE,<\/span> 0<\/span>,<\/span>
              \n (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>addr,<\/span> sizeof<\/span>(<\/span>addr)<\/span>)<\/span>;<\/span><\/p>\n

              rtpPacket-><\/span>rtpHeader.<\/span>seq =<\/span> ntohs<\/span>(<\/span>rtpPacket-><\/span>rtpHeader.<\/span>seq)<\/span>;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>timestamp =<\/span> ntohl<\/span>(<\/span>rtpPacket-><\/span>rtpHeader.<\/span>timestamp)<\/span>;<\/span>
              \n rtpPacket-><\/span>rtpHeader.<\/span>ssrc =<\/span> ntohl<\/span>(<\/span>rtpPacket-><\/span>rtpHeader.<\/span>ssrc)<\/span>;<\/span><\/p>\n

              return<\/span> ret;<\/span>
              \n}<\/span><\/p>\n

              \n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              🎄\u516d\u3001\u603b\u7ed3<\/h2>\n

              \u6587\u7ae0\u4ecb\u7ecd\u5982\u4f55\u5b9e\u73b0\u6700\u7b80\u5355\u4e00\u4e2a\u6700\u7b80\u5355\u7684RTSP\u670d\u52a1\u5668，\u53ef\u4ee5\u540c\u65f6\u4f20\u8f93H264\u6570\u636e\u3001AAC\u6570\u636e\u3002 \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u5982\u679c\u6587\u7ae0\u6709\u5e2e\u52a9\u7684\u8bdd，\u70b9\u8d5e👍\u3001\u6536\u85cf\u2b50，\u652f\u6301\u4e00\u6ce2，\u8c22\u8c22 😁😁😁<\/p>\n","protected":false},"excerpt":{"rendered":"

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