{"id":45871,"date":"2025-07-30T01:36:55","date_gmt":"2025-07-29T17:36:55","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/45871.html"},"modified":"2025-07-30T01:36:55","modified_gmt":"2025-07-29T17:36:55","slug":"%e3%80%90rtsp%e4%bb%8e%e9%9b%b6%e5%ae%9e%e8%b7%b5%e3%80%9113%e3%80%81tcp%e4%bc%a0%e8%be%93aac%e6%a0%bc%e5%bc%8frtp%e5%8c%85rtp_over_tcp%e7%9a%84rtsp%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%99%84%e5%b8%a6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/45871.html","title":{"rendered":"\u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301113\u3001TCP\u4f20\u8f93AAC\u683c\u5f0fRTP\u5305(RTP_over_TCP)\u7684RTSP\u670d\u52a1\u5668(\u9644\u5e26\u6e90\u7801)"},"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🤣：🍭TCP\u4f20\u8f93H264\u683c\u5f0fRTP\u5305(RTP_OVER_TCP)\u7684RTSP\u670d\u52a1\u5668🍭<\/font> \u23f0\u53d1\u5e03\u65f6\u95f4\u23f0： 2025-07-16<\/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\u3001RTP over TCP(RTSP)<\/font> \u4ecb\u7ecd<\/li>\n
  • \n
      \n
    • \u27282.1 RTP over TCP(RTSP)<\/font> \u76f8\u5173\u6982\u5ff5<\/li>\n
    • \u27282.2 \u600e\u4e48\u533a\u5206 RTSP\u5305\u3001RTP\u5305\u3001RTCP\u5305<\/font><\/li>\n
    • \u27282.3 RTP\u5305\u5c01\u88c5\u4ee3\u7801<\/li>\n<\/ul>\n<\/li>\n
    • 🎄\u4e09\u3001RTP_over_TCP\u7684RTSP\u670d\u52a1\u7aef\u6e90\u7801<\/li>\n
    • 🎄\u56db\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\u301101\u3001\u6839\u636eRTSP\u534f\u8bae\u5b9e\u73b0\u4e00\u4e2aRTSP\u670d\u52a1 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301102\u3001\u4f7f\u7528RTP\u534f\u8bae\u5c01\u88c5\u5e76\u4f20\u8f93H264 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301103\u3001\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u4f20\u8f93H264\u7684RTSP\u670d\u52a1\u5668 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301104\u3001\u4f7f\u7528RTP\u534f\u8bae\u5c01\u88c5\u5e76\u4f20\u8f93AAC \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301105\u3001\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u4f20\u8f93AAC\u7684RTSP\u670d\u52a1\u5668 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301106\u3001\u5b9e\u73b0\u6700\u7b80\u5355\u7684\u540c\u65f6\u4f20\u8f93H264\u3001AAC\u7684RTSP\u670d\u52a1\u5668 \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301107\u3001\u591a\u64ad\u4f20\u8f93H264\u683c\u5f0f\u7684RTP\u5305(\u9644\u5e26\u6e90\u7801) \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301108\u3001\u591a\u64ad\u4f20\u8f93H264\u7801\u6d41\u7684RTSP\u670d\u52a1\u5668\u2014\u2014\u6700\u7b80\u5355\u7684\u5b9e\u73b0\u4f8b\u5b50(\u9644\u5e26\u6e90\u7801) \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301109\u3001\u591a\u64ad\u4f20\u8f93AAC\u683c\u5f0f\u7684RTP\u5305(\u9644\u5e26\u6e90\u7801) \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301110\u3001\u591a\u64ad\u4f20\u8f93AAC\u7801\u6d41\u7684RTSP\u670d\u52a1\u5668\u2014\u2014\u6700\u7b80\u5355\u7684\u5b9e\u73b0\u4f8b\u5b50(\u9644\u5e26\u6e90\u7801) \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301111\u3001\u591a\u64ad\u540c\u65f6\u4f20\u8f93H264\u3001AAC\u7801\u6d41\u7684RTSP\u670d\u52a1\u5668\u2014\u2014\u6700\u7b80\u5355\u7684\u5b9e\u73b0\u4f8b\u5b50(\u9644\u5e26\u6e90\u7801) \u3010RTSP\u4ece\u96f6\u5b9e\u8df5\u301112\u3001TCP\u4f20\u8f93H264\u683c\u5f0fRTP\u5305(RTP_over_TCP)\u7684RTSP\u670d\u52a1\u5668(\u9644\u5e26\u6e90\u7801)<\/p>\n

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

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

      \u4e0a\u7bc7\u6587\u7ae0\u4ecb\u7ecd\u4e86\u4f7f\u7528TCP\u534f\u8bae\u4f20\u8f93H264\u683c\u5f0f\u7684RTP\u5305，\u8fd9\u7bc7\u4ecb\u7ecd\u7684\u662f\u4f7f\u7528TCP\u534f\u8bae\u4f20\u8f93AAC\u683c\u5f0f\u7684RTP\u5305，\u4e0b\u9762\u4e3b\u8981\u4ecb\u7ecd RTP over TCP(RTSP)<\/font> \u7684\u76f8\u5173\u6982\u5ff5，\u7136\u540e\u76f4\u63a5\u770b\u4ee3\u7801\u3002<\/p>\n

      \n

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

      🎄\u4e8c\u3001RTP over TCP(RTSP)<\/font> \u4ecb\u7ecd<\/h2>\n

      \u27282.1 RTP over TCP(RTSP)<\/font> \u76f8\u5173\u6982\u5ff5<\/h3>\n

      \u6211\u4eec\u524d\u9762\u7cfb\u5217\u6587\u7ae0\u4ecb\u7ecd\u8fc7\u7684rtsp\u670d\u52a1\u5668\u90fd\u662f\u521b\u5efa\u4e86\u4e00\u4e2aTCP\u670d\u52a1\u6765\u5904\u7406RTSP\u534f\u8bae，\u521b\u5efa\u53e6\u4e00\u4e2aUDP\u5957\u63a5\u5b57\u6765\u53d1\u9001RTP\u5305，\u8fd9\u79cd\u65b9\u5f0f\u5c31\u662f RTP over UDP\u3002\u800cRTP over TCP\u4e0d\u5355\u72ec\u5efa\u7acb\u4e00\u4e2aUDP\u5957\u63a5\u5b57\u53bb\u53d1\u9001RTP\u5305，\u800c\u662f\u5229\u7528\u5904\u7406RTSP\u534f\u8bae\u7684TCP\u5957\u63a5\u5b57\u6765\u53d1\u9001RTP\u5305\u7684，\u6240\u6709\u6709\u4e9b\u8d44\u6599\u4e5f\u628a\u8fd9\u79cd\u65b9\u5f0f\u79f0\u4e3aRTP over RTSP\u3002<\/p>\n

        \n
      • RTP over UDP：\u4e00\u4e2aTCP\u5957\u63a5\u5b57\u5904\u7406RTSP\u534f\u8bae，\u53e6\u4e00\u4e2aUDP\u5957\u63a5\u5b57\u53d1\u9001RTP\u5305\u3001RTCP\u5305；<\/li>\n
      • RTP over TCP(RTSP)：\u4e00\u4e2aTCP\u5957\u63a5\u5b57\u5904\u7406RTSP\u534f\u8bae\u3001RTP\u5305\u3001RTCP\u5305\u3002<\/li>\n<\/ul>\n
        \n

        \u27282.2 \u600e\u4e48\u533a\u5206 RTSP\u5305\u3001RTP\u5305\u3001RTCP\u5305<\/font><\/h3>\n

        \u5982\u4e0a\u9762\u6240\u8bf4，\u6211\u4eec\u590d\u7528\u53d1\u9001RTSP\u4ea4\u4e92\u7684socket\u6765\u53d1\u9001RTP\u5305\u548cRTCP\u4fe1\u606f，\u90a3\u4e48\u5bf9\u4e8e\u5ba2\u6237\u7aef\u6765\u8bf4，\u5982\u4f55\u533a\u5206\u8fd9\u4e09\u79cd\u6570\u636e\u5462？<\/p>\n

        \u6211\u4eec\u5c06\u8fd9\u4e09\u4e2a\u5206\u4e3a\u4e24\u7c7b，\u4e00\u7c7b\u662fRTSP，\u4e00\u7c7b\u662fRTP\u3001RTCP<\/p>\n

        \u53d1\u9001RTSP\u4fe1\u606f\u7684\u60c5\u51b5\u6ca1\u6709\u53d8\u5316，\u8fd8\u662f\u66f4\u4ee5\u524d\u4e00\u6837\u7684\u65b9\u5f0f<\/p>\n

        \u53d1\u9001RTP\u3001RTCP\u5305，\u5728\u6bcf\u4e2a\u5305\u524d\u9762\u90fd\u52a0\u4e0a\u56db\u4e2a\u5b57\u8282，\u8fd9\u56db\u4e2a\u5b57\u8282\u89e3\u91ca\u5982\u4e0b：<\/p>\n\n\u5b57\u8282\u63cf\u8ff0<\/tr>\n\n\n\n\n
        \u7b2c\u4e00\u4e2a\u5b57\u8282<\/td>\n\u5b57\u7b26'$'，\u8868\u793a\u8fd9\u4e2a\u5305\u662fRTP\u5305 \u6216 RTCP\u5305<\/td>\n<\/tr>\n
        \u7b2c\u4e8c\u4e2a\u5b57\u8282<\/td>\n\u901a\u9053\u53f7channel，\u7528\u4e8e\u533a\u5206RTP\u5305 \u6216 RTCP\u5305<\/td>\n<\/tr>\n
        \u7b2c\u4e09\u3001\u56db\u4e2a\u5b57\u8282<\/td>\n\u8868\u793aRTP\u5305\u7684\u5927\u5c0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \u4f7f\u7528TCP\u534f\u8bae\u4f20\u8f93\u7684RTP\u5305\u548cRTCP\u5305，\u7b2c\u4e00\u4e2a\u5b57\u8282\u56fa\u5b9a\u4e3a$\u5b57\u7b26，\u7b2c\u4e8c\u5b57\u8282\u7684channel\u662f\u5728RTSP\u670d\u52a1\u5668\u5904\u7406\u7684SETUP\u8fc7\u7a0b\u4e2d，\u5ba2\u6237\u7aef\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u7684\u3002<\/p>\n

        \u6240\u4ee5，\u4f7f\u7528TCP\u534f\u8bae\u4f20\u8f93\u7684RTP\u5305\u7ed3\u6784\u5982\u4e0b： \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \n

        \u27282.3 RTP\u5305\u5c01\u88c5\u4ee3\u7801<\/h3>\n

        \u5728RTP\u5305\u8d77\u59cb\u4f4d\u7f6e\u589e\u52a04\u4e2a\u5b57\u8282\u7684\u6570\u636e：<\/p>\n

        struct<\/span> RtpPacket<\/span>
        \n{<\/span>
        \n char<\/span> header[<\/span>4<\/span>]<\/span>;<\/span>
        \n struct<\/span> RtpHeader<\/span> rtpHeader;<\/span>
        \n uint8_t<\/span> payload[<\/span>0<\/span>]<\/span>;<\/span>
        \n}<\/span>;<\/span><\/p>\n

        \u5728\u53d1\u9001RTP\u5305\u524d，\u662f\u8fd9\u6837\u586b\u5199\u8fd94\u4e2a\u5b57\u8282：<\/p>\n

        rtpPacket-><\/span>header[<\/span>0<\/span>]<\/span> =<\/span> '$'<\/span>;<\/span>
        \nrtpPacket-><\/span>header[<\/span>1<\/span>]<\/span> =<\/span> rtpChannel;<\/span>
        \nrtpPacket-><\/span>header[<\/span>2<\/span>]<\/span> =<\/span> (<\/span>(<\/span>dataSize+<\/span>RTP_HEADER_SIZE)<\/span> &<\/span> 0xFF00<\/span> )<\/span> >><\/span> 8<\/span>;<\/span>
        \nrtpPacket-><\/span>header[<\/span>3<\/span>]<\/span> =<\/span> (<\/span>dataSize+<\/span>RTP_HEADER_SIZE)<\/span> &<\/span> 0xFF<\/span>;<\/span><\/p>\n

        \n

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

        🎄\u4e09\u3001RTP_over_TCP\u7684RTSP\u670d\u52a1\u7aef\u6e90\u7801<\/h2>\n

        1\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

        2\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>\/\/ \u00d2\u00bb\u00d6\u00a1\u00ca\u00fd\u00be\u00dd\u00d7\u00ee\u00b4\u00f3\u00d7\u00d6\u00bd\u00da\u00ca\u00fd<\/span><\/span>
        \n#<\/span>define<\/span> MAX_SYNCCODE_LEN<\/span> (<\/span>3<\/span>)<\/span> <\/span>\/\/ \u00cd\u00ac\u00b2\u00bd\u00c2\u00eb\u00d7\u00d6\u00bd\u00da\u00b8\u00f6\u00ca\u00fd 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\u00a3\u00ac\u00c7\u00b012bit\u00b6\u00bc\u00ce\u00aa1 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 :\u00ca\u00e4\u00b3\u00f6\u00b2\u00ce\u00ca\u00fd\u00a3\u00ac\u00ca\u00b9\u00d3\u00c3\u00ba\u00f3 pAACInfo->pFrameBuf \u00d0\u00e8\u00d2\u00aafree
        \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.\u00cf\u00c8\u00b6\u00c1\u00c8\u00a1ADTS\u00d6\u00a1\u00cd\u00b7(7\u00b8\u00f6\u00d7\u00d6\u00bd\u00da)<\/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.\u00b2\u00e9\u00d5\u00d2\u00b5\u00b1\u00c7\u00b0\u00d6\u00a1\u00cd\u00ac\u00b2\u00bd\u00c2\u00eb\u00a3\u00ac\u00bb\u00f1\u00c8\u00a1\u00d6\u00a1\u00b3\u00a4\u00b6\u00c8<\/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>\/\/ \u00b2\u00bb\u00ca\u00c7\u00d6\u00a1\u00bf\u00aa\u00cd\u00b7\u00a3\u00ac\u00c6\u00ab\u00d2\u00c6\u00b5\u00bd\u00d6\u00a1\u00bf\u00aa\u00cd\u00b7\u00d6\u00d8\u00d0\u00c2\u00b6\u00c1<\/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.\u00b6\u00c1\u00c8\u00a1ADTS\u00d6\u00a1\u00ca\u00fd\u00be\u00dd 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.\u00cc\u00ee\u00ca\u00fd\u00be\u00dd<\/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

        3\u3001tcp_rtp.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 char<\/span> header[<\/span>4<\/span>]<\/span>;<\/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> uint8_t<\/span> rtpChannel,<\/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

        4\u3001tcp_rtp.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> "tcp_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> uint8_t<\/span> rtpChannel,<\/span> struct<\/span> RtpPacket<\/span>*<\/span> rtpPacket,<\/span> uint32_t<\/span> dataSize)<\/span>
        \n{<\/span>
        \n int<\/span> ret;<\/span><\/p>\n

        rtpPacket-><\/span>header[<\/span>0<\/span>]<\/span> =<\/span> '$'<\/span>;<\/span>
        \n rtpPacket-><\/span>header[<\/span>1<\/span>]<\/span> =<\/span> rtpChannel;<\/span>
        \n rtpPacket-><\/span>header[<\/span>2<\/span>]<\/span> =<\/span> (<\/span>(<\/span>dataSize+<\/span>RTP_HEADER_SIZE)<\/span> &<\/span> 0xFF00<\/span> )<\/span> >><\/span> 8<\/span>;<\/span>
        \n rtpPacket-><\/span>header[<\/span>3<\/span>]<\/span> =<\/span> (<\/span>dataSize+<\/span>RTP_HEADER_SIZE)<\/span> &<\/span> 0xFF<\/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> send<\/span>(<\/span>socket,<\/span> (<\/span>void<\/span>*<\/span>)<\/span>rtpPacket,<\/span> dataSize+<\/span>RTP_HEADER_SIZE+<\/span>4<\/span>,<\/span> 0<\/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

        5\u3001rtsp_aac_tcp_main.c<\/p>\n

        \/**
        \n * @file rtsp_aac_tcp_main.c
        \n * @author : https:\/\/blog.csdn.net\/wkd_007
        \n * @brief
        \n * @version 0.1
        \n * @date 2025-07-16
        \n *
        \n * @copyright Copyright (c) 2025
        \n *
        \n *\/<\/span>
        \n#<\/span>include<\/span> <stdio.h><\/span><\/span>
        \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
        \n#<\/span>include<\/span> <string.h><\/span><\/span>
        \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
        \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
        \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
        \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
        \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
        \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
        \n#<\/span>include<\/span> <sys\/stat.h><\/span><\/span>
        \n#<\/span>include<\/span> <fcntl.h><\/span><\/span><\/p>\n

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

        #<\/span>define<\/span> AAC_FILE_NAME<\/span> "test.aac"<\/span><\/span><\/p>\n

        #<\/span>define<\/span> RTSP_PORT<\/span> 8554<\/span><\/span><\/span>
        \n#<\/span>define<\/span> MAX_CLIENTS<\/span> 5<\/span><\/span><\/span>
        \n#<\/span>define<\/span> SESSION_ID<\/span> 10086001<\/span><\/span><\/span>
        \n#<\/span>define<\/span> SESSION_TIMEOUT<\/span> 60<\/span><\/span><\/span><\/p>\n

        typedef<\/span> struct<\/span>
        \n{<\/span>
        \n int<\/span> rtpSendFd;<\/span>
        \n int<\/span> rtpPort;<\/span>
        \n int<\/span> rtpChannel;<\/span>
        \n int<\/span> bPlayFlag;<\/span> \/\/ \u64ad\u653e\u6807\u5fd7<\/span>
        \n char<\/span> *<\/span>cliIp;<\/span>
        \n}<\/span> RTP_Send_t;<\/span><\/p>\n

        typedef<\/span> enum<\/span>
        \n{<\/span>
        \n RTP_NULL,<\/span>
        \n RTP_PLAY,<\/span>
        \n RTP_PLAYING,<\/span>
        \n RTP_STOP,<\/span>
        \n}<\/span> RTP_PLAY_STATE;<\/span><\/p>\n

        static<\/span> int<\/span> createUdpSocket<\/span>(<\/span>)<\/span>
        \n{<\/span>
        \n int<\/span> fd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_DGRAM,<\/span> 0<\/span>)<\/span>;<\/span>
        \n if<\/span> (<\/span>fd <<\/span> 0<\/span>)<\/span>
        \n return<\/span> –<\/span>1<\/span>;<\/span><\/p>\n

        int<\/span> on =<\/span> 1<\/span>;<\/span>
        \n setsockopt<\/span>(<\/span>fd,<\/span> SOL_SOCKET,<\/span> SO_REUSEADDR,<\/span> (<\/span>const<\/span> char<\/span> *<\/span>)<\/span>&<\/span>on,<\/span> sizeof<\/span>(<\/span>on)<\/span>)<\/span>;<\/span><\/p>\n

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

        static<\/span> int<\/span> rtpSendAACFrame<\/span>(<\/span>int<\/span> socket,<\/span> int<\/span> rtpChannel,<\/span>
        \n struct<\/span> RtpPacket<\/span> *<\/span>rtpPacket,<\/span> uint8_t<\/span> *<\/span>frame,<\/span> uint32_t<\/span> frameSize)<\/span>
        \n{<\/span>
        \n int<\/span> ret;<\/span><\/p>\n

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

        memcpy<\/span>(<\/span>rtpPacket-><\/span>payload +<\/span> 4<\/span>,<\/span> frame,<\/span> frameSize)<\/span>;<\/span><\/p>\n

        ret =<\/span> rtpSendPacket<\/span>(<\/span>socket,<\/span> rtpChannel,<\/span> rtpPacket,<\/span> frameSize +<\/span> 4<\/span>)<\/span>;<\/span>
        \n if<\/span> (<\/span>ret <<\/span> 0<\/span>)<\/span>
        \n {<\/span>
        \n printf<\/span>(<\/span>"failed to send rtp packet\\\\n"<\/span>)<\/span>;<\/span>
        \n return<\/span> –<\/span>1<\/span>;<\/span>
        \n }<\/span><\/p>\n

        rtpPacket-><\/span>rtpHeader.<\/span>seq++<\/span>;<\/span><\/p>\n

        return<\/span> 0<\/span>;<\/span>
        \n}<\/span><\/p>\n

        void<\/span> *<\/span>sendRtp<\/span>(<\/span>void<\/span> *<\/span>arg)<\/span>
        \n{<\/span>
        \n RTP_Send_t *<\/span>pRtpSend =<\/span> (<\/span>RTP_Send_t *<\/span>)<\/span>arg;<\/span>
        \n int<\/span> rtp_send_fd =<\/span> pRtpSend-><\/span>rtpSendFd;<\/span>
        \n int<\/span> rtpChannel =<\/span> pRtpSend-><\/span>rtpChannel;<\/span><\/p>\n

        struct<\/span> RtpPacket<\/span> *<\/span>rtpPacket =<\/span> (<\/span>struct<\/span> RtpPacket<\/span> *<\/span>)<\/span>malloc<\/span>(<\/span>sizeof<\/span>(<\/span>struct<\/span> RtpPacket<\/span>)<\/span> +<\/span> 1500<\/span>)<\/span>;<\/span><\/p>\n

        rtpHeaderInit<\/span>(<\/span>rtpPacket,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> RTP_VESION,<\/span> RTP_PAYLOAD_TYPE_AAC,<\/span> 1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0x32411<\/span>)<\/span>;<\/span><\/p>\n

        \/\/ aac<\/span>
        \n AACReaderInfo_t aacInfo;<\/span>
        \n if<\/span> (<\/span>AAC_FileOpen<\/span>(<\/span>AAC_FILE_NAME,<\/span> &<\/span>aacInfo)<\/span> <<\/span> 0<\/span>)<\/span>
        \n {<\/span>
        \n printf<\/span>(<\/span>"failed to open %s\\\\n"<\/span>,<\/span> AAC_FILE_NAME)<\/span>;<\/span>
        \n return<\/span> NULL<\/span>;<\/span>
        \n }<\/span><\/p>\n

        while<\/span> (<\/span>pRtpSend-><\/span>bPlayFlag)<\/span>
        \n {<\/span>
        \n if<\/span> (<\/span>!<\/span>AAC_IsEndOfFile<\/span>(<\/span>&<\/span>aacInfo)<\/span>)<\/span>
        \n {<\/span>
        \n AACFrame_t aacFrame;<\/span>
        \n memset<\/span>(<\/span>&<\/span>aacFrame,<\/span> 0<\/span>,<\/span> sizeof<\/span>(<\/span>aacFrame)<\/span>)<\/span>;<\/span>
        \n AAC_GetADTSFrame<\/span>(<\/span>&<\/span>aacFrame,<\/span> &<\/span>aacInfo)<\/span>;<\/span><\/p>\n

        if<\/span> (<\/span>aacFrame.<\/span>pFrameBuf !=<\/span> NULL<\/span>)<\/span>
        \n {<\/span>
        \n \/\/ printf("rtpSendAACFrame\\\\n");<\/span>
        \n rtpSendAACFrame<\/span>(<\/span>rtp_send_fd,<\/span> rtpChannel,<\/span> rtpPacket,<\/span>
        \n aacFrame.<\/span>pFrameBuf +<\/span> ADTS_HEADER_LEN,<\/span> aacFrame.<\/span>frame_len –<\/span> ADTS_HEADER_LEN)<\/span>;<\/span>
        \n free<\/span>(<\/span>aacFrame.<\/span>pFrameBuf)<\/span>;<\/span><\/p>\n

        \/*
        \n * \u5982\u679c\u91c7\u6837\u9891\u7387\u662f48000
        \n * \u4e00\u822cAAC\u6bcf\u4e2a1024\u4e2a\u91c7\u6837\u4e3a\u4e00\u5e27
        \n * \u6240\u4ee5\u4e00\u79d2\u5c31\u6709 48000 \/ 1024 = 46\u5e27
        \n * \u65f6\u95f4\u589e\u91cf\u5c31\u662f 48000 \/ 46 = 1043
        \n * \u4e00\u5e27\u7684\u65f6\u95f4\u4e3a 1000ms \/ 46 = 21ms
        \n *\/<\/span>
        \n rtpPacket-><\/span>rtpHeader.<\/span>timestamp +=<\/span> 1043<\/span>;<\/span>
        \n usleep<\/span>(<\/span>21<\/span> *<\/span> 1000<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n else<\/span>
        \n {<\/span>
        \n printf<\/span>(<\/span>"warning SeekFile\\\\n"<\/span>)<\/span>;<\/span>
        \n AAC_SeekFile<\/span>(<\/span>&<\/span>aacInfo)<\/span>;<\/span>
        \n }<\/span>
        \n }<\/span>
        \n }<\/span><\/p>\n

        free<\/span>(<\/span>rtpPacket)<\/span>;<\/span>
        \n AAC_FileClose<\/span>(<\/span>&<\/span>aacInfo)<\/span>;<\/span>
        \n return<\/span> NULL<\/span>;<\/span>
        \n}<\/span><\/p>\n

        \/\/ \u89e3\u6790RTSP\u8bf7\u6c42<\/span>
        \nvoid<\/span> rtsp_request_parse<\/span>(<\/span>char<\/span> *<\/span>buffer,<\/span> char<\/span> *<\/span>method,<\/span> char<\/span> *<\/span>url,<\/span> int<\/span> *<\/span>cseq,<\/span> int<\/span> *<\/span>pRtpChannel)<\/span>
        \n{<\/span>
        \n char<\/span> *<\/span>line =<\/span> strtok<\/span>(<\/span>buffer,<\/span> "\\\\r\\\\n"<\/span>)<\/span>;<\/span>
        \n sscanf<\/span>(<\/span>line,<\/span> "%s %s RTSP\/1.0"<\/span>,<\/span> method,<\/span> url)<\/span>;<\/span><\/p>\n

        while<\/span> (<\/span>(<\/span>line =<\/span> strtok<\/span>(<\/span>NULL<\/span>,<\/span> "\\\\r\\\\n"<\/span>)<\/span>)<\/span> !=<\/span> NULL<\/span>)<\/span>
        \n {<\/span>
        \n if<\/span> (<\/span>strncmp<\/span>(<\/span>line,<\/span> "CSeq:"<\/span>,<\/span> 5<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
        \n {<\/span>
        \n sscanf<\/span>(<\/span>line,<\/span> "CSeq: %d"<\/span>,<\/span> cseq)<\/span>;<\/span>
        \n }<\/span><\/p>\n

        char<\/span> *<\/span>pInterleaved =<\/span> strstr<\/span>(<\/span>line,<\/span> "interleaved="<\/span>)<\/span>;<\/span>
        \n if<\/span> (<\/span>pInterleaved !=<\/span> NULL<\/span>)<\/span>
        \n {<\/span>
        \n int<\/span> rtcpChn =<\/span> 0<\/span>;<\/span>
        \n sscanf<\/span>(<\/span>pInterleaved,<\/span> "interleaved=%d-%d"<\/span>,<\/span> pRtpChannel,<\/span> &<\/span>rtcpChn)<\/span>;<\/span>
        \n \/\/ printf("rtpPort: %d-%d\\\\n",*pRtpChannel, rtcpChn);<\/span>
        \n }<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        \/\/ \u751f\u6210SDP\u63cf\u8ff0<\/span>
        \nconst<\/span> char<\/span> *<\/span>generate_sdp<\/span>(<\/span>)<\/span>
        \n{<\/span>
        \n return<\/span> "v=0\\\\r\\\\n"<\/span>
        \n "o=- 0 0 IN IP4 0.0.0.0\\\\r\\\\n"<\/span>
        \n "s=Example Stream\\\\r\\\\n"<\/span>
        \n "t=0 0\\\\r\\\\n"<\/span>
        \n "m=audio 0 RTP\/AVP 97\\\\r\\\\n"<\/span>
        \n "a=rtpmap:97 mpeg4-generic\/48000\/2\\\\r\\\\n"<\/span>
        \n "a=fmtp:97 SizeLength=13;\\\\r\\\\n"<\/span>
        \n "a=control:streamid=0\\\\r\\\\n"<\/span>;<\/span>
        \n}<\/span><\/p>\n

        void<\/span> rtsp_handle_OPTION<\/span>(<\/span>char<\/span> *<\/span>response,<\/span> int<\/span> cseq)<\/span>
        \n{<\/span>
        \n sprintf<\/span>(<\/span>response,<\/span>
        \n "RTSP\/1.0 200 OK\\\\r\\\\n"<\/span>
        \n "CSeq: %d\\\\r\\\\n"<\/span>
        \n "Public: OPTIONS, DESCRIBE, SETUP, PLAY, TEARDOWN\\\\r\\\\n\\\\r\\\\n"<\/span>,<\/span>
        \n cseq)<\/span>;<\/span>
        \n}<\/span><\/p>\n

        static<\/span> void<\/span> rtsp_handle_DESCRIBE<\/span>(<\/span>char<\/span> *<\/span>response,<\/span> int<\/span> cseq)<\/span>
        \n{<\/span>
        \n sprintf<\/span>(<\/span>response,<\/span>
        \n "RTSP\/1.0 200 OK\\\\r\\\\n"<\/span>
        \n "CSeq: %d\\\\r\\\\n"<\/span>
        \n "Content-Type: application\/sdp\\\\r\\\\n"<\/span>
        \n "Content-Length: %zu\\\\r\\\\n\\\\r\\\\n%s"<\/span>,<\/span>
        \n cseq,<\/span> strlen<\/span>(<\/span>generate_sdp<\/span>(<\/span>)<\/span>)<\/span>,<\/span> generate_sdp<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
        \n}<\/span><\/p>\n

        static<\/span> void<\/span> rtsp_handle_SETUP<\/span>(<\/span>char<\/span> *<\/span>response,<\/span> int<\/span> cseq,<\/span> int<\/span> rtpChannel)<\/span>
        \n{<\/span>
        \n sprintf<\/span>(<\/span>response,<\/span>
        \n "RTSP\/1.0 200 OK\\\\r\\\\n"<\/span>
        \n "CSeq: %d\\\\r\\\\n"<\/span>
        \n "Session: %u; timeout=%d\\\\r\\\\n"<\/span>
        \n "Transport: RTP\/AVP\/TCP;unicast;interleaved=%hhu-%hhu\\\\r\\\\n\\\\r\\\\n"<\/span>,<\/span>
        \n cseq,<\/span> SESSION_ID,<\/span> SESSION_TIMEOUT,<\/span> rtpChannel,<\/span> rtpChannel +<\/span> 1<\/span>)<\/span>;<\/span>
        \n}<\/span><\/p>\n

        static<\/span> void<\/span> rtsp_handle_PLAY<\/span>(<\/span>char<\/span> *<\/span>response,<\/span> int<\/span> cseq)<\/span>
        \n{<\/span>
        \n sprintf<\/span>(<\/span>response,<\/span>
        \n "RTSP\/1.0 200 OK\\\\r\\\\n"<\/span>
        \n "CSeq: %d\\\\r\\\\n"<\/span>
        \n "Session: %u; timeout=%d\\\\r\\\\n"<\/span>
        \n "Range: npt=0.000-\\\\r\\\\n\\\\r\\\\n"<\/span>,<\/span>
        \n cseq,<\/span> SESSION_ID,<\/span> SESSION_TIMEOUT)<\/span>;<\/span>
        \n}<\/span><\/p>\n

        static<\/span> void<\/span> rtsp_handle_TEARDOWN<\/span>(<\/span>char<\/span> *<\/span>response,<\/span> int<\/span> cseq)<\/span>
        \n{<\/span>
        \n sprintf<\/span>(<\/span>response,<\/span>
        \n "RTSP\/1.0 200 OK\\\\r\\\\n"<\/span>
        \n "CSeq: %d\\\\r\\\\n"<\/span>
        \n "Session: %d; timeout=%d\\\\r\\\\n\\\\r\\\\n"<\/span>,<\/span>
        \n cseq,<\/span> SESSION_ID,<\/span> SESSION_TIMEOUT)<\/span>;<\/span>
        \n}<\/span><\/p>\n

        \/\/ \u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5<\/span>
        \nint<\/span> handle_client<\/span>(<\/span>int<\/span> cli_fd,<\/span> char<\/span> *<\/span>cli_ip)<\/span>
        \n{<\/span>
        \n int<\/span> client_sock =<\/span> cli_fd;<\/span>
        \n char<\/span> buffer[<\/span>1024<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
        \n int<\/span> cseq =<\/span> 0<\/span>;<\/span>
        \n int<\/span> rtpChn =<\/span> 0<\/span>;<\/span>
        \n unsigned<\/span> char<\/span> bSendFlag =<\/span> RTP_NULL;<\/span>
        \n RTP_Send_t rtpSend;<\/span>
        \n pthread_t<\/span> thread_id;<\/span><\/p>\n

        while<\/span> (<\/span>1<\/span>)<\/span>
        \n {<\/span>
        \n memset<\/span>(<\/span>buffer,<\/span> 0<\/span>,<\/span> sizeof<\/span>(<\/span>buffer)<\/span>)<\/span>;<\/span>
        \n int<\/span> len =<\/span> read<\/span>(<\/span>client_sock,<\/span> buffer,<\/span> sizeof<\/span>(<\/span>buffer)<\/span> –<\/span> 1<\/span>)<\/span>;<\/span>
        \n if<\/span> (<\/span>len <=<\/span> 0<\/span>)<\/span>
        \n break<\/span>;<\/span><\/p>\n

        printf<\/span>(<\/span>"C->S [%s]\\\\n\\\\n"<\/span>,<\/span> buffer)<\/span>;<\/span><\/p>\n

        char<\/span> method[<\/span>16<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
        \n char<\/span> url[<\/span>128<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
        \n rtsp_request_parse<\/span>(<\/span>buffer,<\/span> method,<\/span> url,<\/span> &<\/span>cseq,<\/span> &<\/span>rtpChn)<\/span>;<\/span><\/p>\n

        char<\/span> response[<\/span>1024<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span> \/\/ \u6784\u9020\u54cd\u5e94<\/span>
        \n if<\/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>
        \n else<\/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>
        \n else<\/span> if<\/span> (<\/span>strcmp<\/span>(<\/span>method,<\/span> "SETUP"<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>
        \n {<\/span>
        \n rtsp_handle_SETUP<\/span>(<\/span>response,<\/span> cseq,<\/span> rtpChn)<\/span>;<\/span>
        \n }<\/span>
        \n else<\/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>
        \n else<\/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>
        \n else<\/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

        write<\/span>(<\/span>client_sock,<\/span> response,<\/span> strlen<\/span>(<\/span>response)<\/span>)<\/span>;<\/span>
        \n printf<\/span>(<\/span>"S->C [%s]\\\\n\\\\n"<\/span>,<\/span> response)<\/span>;<\/span><\/p>\n

        if<\/span> (<\/span>bSendFlag ==<\/span> RTP_PLAY)<\/span> \/\/ PLAY<\/span>
        \n {<\/span>
        \n rtpSend.<\/span>rtpSendFd =<\/span> cli_fd;<\/span>
        \n rtpSend.<\/span>rtpPort =<\/span> 0<\/span>;<\/span>
        \n rtpSend.<\/span>rtpChannel =<\/span> rtpChn;<\/span>
        \n rtpSend.<\/span>cliIp =<\/span> NULL<\/span>;<\/span>
        \n rtpSend.<\/span>bPlayFlag =<\/span> 1<\/span>;<\/span><\/p>\n

        \/\/ \u8fd9\u91cc\u4e0d\u4f7f\u7528\u7ebf\u7a0b\u7684\u8bdd，\u4f1a\u4e00\u76f4\u65e0\u6cd5\u5904\u7406 client_sock \u53d1\u8fc7\u6765\u7684 OPTION \u6d88\u606f，\u5bfc\u81f4\u64ad\u653e\u51fa\u95ee\u9898<\/span>
        \n if<\/span> (<\/span>pthread_create<\/span>(<\/span>&<\/span>thread_id,<\/span> NULL<\/span>,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>sendRtp,<\/span> (<\/span>void<\/span> *<\/span>)<\/span>&<\/span>rtpSend)<\/span> <<\/span> 0<\/span>)<\/span>
        \n {<\/span>
        \n perror<\/span>(<\/span>"pthread_create"<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n bSendFlag =<\/span> RTP_PLAYING;<\/span>
        \n }<\/span><\/p>\n

        if<\/span> (<\/span>bSendFlag ==<\/span> RTP_STOP)<\/span> \/\/ TEARDOWN<\/span>
        \n {<\/span>
        \n rtpSend.<\/span>bPlayFlag =<\/span> 0<\/span>;<\/span>
        \n pthread_join<\/span>(<\/span>thread_id)<\/span>;<\/span> \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f<\/span>
        \n bSendFlag =<\/span> RTP_NULL;<\/span>
        \n break<\/span>;<\/span>
        \n }<\/span>
        \n }<\/span><\/p>\n

        printf<\/span>(<\/span>"close ip=[%s] fd=[%d]\\\\n"<\/span>,<\/span> cli_ip,<\/span> client_sock)<\/span>;<\/span>
        \n close<\/span>(<\/span>client_sock)<\/span>;<\/span>
        \n return<\/span> 0<\/span>;<\/span>
        \n}<\/span><\/p>\n

        int<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span> *<\/span>argv[<\/span>]<\/span>)<\/span>
        \n{<\/span>
        \n int<\/span> server_fd,<\/span> client_fd;<\/span>
        \n struct<\/span> sockaddr_in<\/span> address;<\/span>
        \n int<\/span> opt =<\/span> 1<\/span>;<\/span>
        \n socklen_t<\/span> addrlen =<\/span> sizeof<\/span>(<\/span>address)<\/span>;<\/span><\/p>\n

        \/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/span>
        \n if<\/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>
        \n if<\/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>
        \n address.<\/span>sin_addr.<\/span>s_addr =<\/span> INADDR_ANY;<\/span>
        \n address.<\/span>sin_port =<\/span> htons<\/span>(<\/span>RTSP_PORT)<\/span>;<\/span><\/p>\n

        \/\/ \u7ed1\u5b9a\u7aef\u53e3<\/span>
        \n if<\/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>
        \n if<\/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

        printf<\/span>(<\/span>"RTSP Server listening on port %d\\\\n"<\/span>,<\/span> RTSP_PORT)<\/span>;<\/span><\/p>\n

        \/\/ \u4e3b\u5faa\u73af\u63a5\u53d7\u8fde\u63a5，\u76ee\u524d\u5904\u7406\u4e00\u4e2a\u5ba2\u6237\u7aef<\/span>
        \n while<\/span> (<\/span>1<\/span>)<\/span>
        \n {<\/span>
        \n char<\/span> cli_ip[<\/span>40<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
        \n if<\/span> (<\/span>(<\/span>client_fd =<\/span> accept<\/span>(<\/span>server_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span> *<\/span>)<\/span>&<\/span>address,<\/span> &<\/span>addrlen)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span>
        \n {<\/span>
        \n perror<\/span>(<\/span>"accept"<\/span>)<\/span>;<\/span>
        \n return<\/span> –<\/span>1<\/span>;<\/span>
        \n }<\/span><\/p>\n

        strncpy<\/span>(<\/span>cli_ip,<\/span> inet_ntoa<\/span>(<\/span>address.<\/span>sin_addr)<\/span>,<\/span> sizeof<\/span>(<\/span>cli_ip)<\/span>)<\/span>;<\/span>
        \n printf<\/span>(<\/span>"handle cliend [%s]\\\\n"<\/span>,<\/span> cli_ip)<\/span>;<\/span><\/p>\n

        handle_client<\/span>(<\/span>client_fd,<\/span> cli_ip)<\/span>;<\/span>
        \n }<\/span><\/p>\n

        return<\/span> 0<\/span>;<\/span>
        \n}<\/span><\/p>\n

        \u9996\u5148\u8bbe\u7f6e\u4e00\u4e0bVLC，\u5de5\u5177->\u504f\u597d\u8bbe\u7f6e->\u8f93\u5165\/\u7f16\u89e3\u7801\u5668，\u52fe\u9009\u5982\u4e0b\u56fe\u7684RTP over RTSP（TCP） \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \u5c06\u4e0a\u9762\u4ee3\u7801\u4fdd\u5b58\u5728\u540c\u4e00\u4e2a\u76ee\u5f55\u540e，\u5e76\u4e14\u5728\u540c\u76ee\u5f55\u91cc\u653e\u4e00\u4e2a.aac\u6587\u4ef6，\u7136\u540e\u8fd0\u884c gcc *.c -lpthread \u7f16\u8bd1，\u518d\u6267\u884c.\/a.out\u8fd0\u884c\u7a0b\u5e8f，\u4e0b\u9762\u662f\u6211\u8fd0\u884c\u7684\u8fc7\u7a0b： \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \n

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

        🎄\u56db\u3001\u603b\u7ed3<\/h2>\n

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