相机推流命令及反馈

橘子猪
1,649 阅读6分钟

推流命令,设置超时参数(网友提供四种解决超时的参数-stimeoutdemux设置在编解码器上; -rw_timeout; -listen_timeout, -timeout)

  • xiongmai相机推向ZLMediaServer

  • 注意,将参数放在前面

    -stimeout 5000000
# 有效
ffmpeg -stimeout 5000000 -i "rtsp://192.168.0.93:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp rtsp://192.168.0.41:554/live/93  
# 有效 指定tcp传输  
ffmpeg -stimeout 5000000 -i "rtsp://192.168.0.93:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp -rtsp_transport tcp rtsp://192.168.0.41:554/live/93  
# 有效 指定udp传输 
ffmpeg -stimeout 5000000 -i "rtsp://192.168.0.93:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp -rtsp_transport udp rtsp://192.168.0.41:554/live/93

  • 推荐的成熟用法,包括将输入输出流超时设置, 输出流形式指定

    //eg ffmpeg -stimeout 5000000 -i "rtsp://192.168.0.90:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp -rtsp_transport tcp -stimeout 5000000 rtsp://192.168.0.41:554/live/90

// 推流模板,以流式套接字推流, 如果首次推流成功, 后某一时刻掉线, 则不会接收到掉线反馈, 客户端持续推流. 这种情况必须确保服务端持续在线
// static const std::string CMD_TEMPLATE{R"(ffmpeg -stimeout TIME_OUT -i "rtsp://IP_SRC:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp -rtsp_transport udp -stimeout TIME_OUT rtsp://IP_DST:554/live/ID/IP_SRC)"};
// 指定tcp形式,即使连接中断客户端能得到连接状态, 继而停止推流
static const std::string CMD_TEMPLATE{R"(ffmpeg -stimeout TIME_OUT -i "rtsp://IP_SRC:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp -rtsp_transport tcp -stimeout TIME_OUT rtsp://IP_DST:554/live/ID/IP_SRC)"};

  • 可用的推荐用法,xiongmai相机从rtsp取流转rtmp推向ZLMediaServer

    ffmpeg -stimeout TIME_OUT -i "rtsp://IP_SRC:554/user=admin&password=&channel=0&stream=1.sdp?real_stream" -c copy -flvflags no_duration_filesize -f flv -stimeout TIME_OUT rtmp://192.168.0.41/live/GROUP/IP_SRC

  • http和rtmp rtsp格式播放ZLMediaKit的视频流

    # http
ffplay "http://192.168.0.41:80/live/zhima/192.168.0.85.flv"  
# rtmp  
rtmp://192.168.0.41:1935/live/zhima/192.168.0.85
# rtsp 
rtsp://192.168.0.41:554/live/zhima/192.168.0.85

  • http-mp4 播放视频流

    ffplay "http://192.168.0.57:80/live/92.live.mp4"

  • 网友建议的后几个参数-rw_timeout; -listen_timeout, -timeout 似乎是设置IO Context, 服务端改用的参数;

     Unable to open RTSP for listening rtsp://192.168.0.67:554/user=admin&password=&channel=0&stream=1.sdp?real_stream: Unknown error

  • 随着开发深入,注意要点:

    • 注意,要点相机的主辅码流的区分可能一个是hevc, 另一个是h264:
    # xiongmai 相机的主码流
stream=0.sdp
# xiongmai 相机的辅码流
stream=1.sdp

    总结哈报错,这个是雄迈相机的主码流hevc以 -c copy 编码器拷贝(hevc)的方式向ZLMediaServer推流,用ffplay 播放该视频流时报错:可能原因(ZLMedia本身是支持hevc的)是:1. 手上这个ffmpeg 不支持libx265; 2 播放端解析不出来

    [flv @ 00000262e8332640] If you want to help, upload a sample of this file to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
[flv @ 00000262e8332640] Video codec (c) is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.

    经过验证,实际ffmpeg支持h265推流,下面则是该命令行,实际报以上错的原因是flv播放器一般只支持H264和AAC编码,该编码格式可能不被播放器支持:H265, 可以选用http-mp4(ZLMediaServer提供http-mp4)

    ffmpeg -stimeout 5000000 -i "rtsp://192.168.0.15:554/user=admin&password=&channel=0&stream=0.sdp?real_stream"  -vcodec hevc -f rtsp -rtsp_transport tcp -stimeout 5000000 rtsp://192.168.0.57:554/live/92
    • ffmpeg 命令行指定h264编码
    -vcodec libx264

推流的反馈信息

C:\Users\zhouqinan>ffmpeg -i "rtsp://192.168.0.93:554/user=admin&password=&channel=0&stream=1.sdp?real_stream"  -c copy -f rtsp -rtsp_transport udp rtsp://192.168.0.41:554/live/stream3
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.1 (GCC) 20200726
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --enable-librav1e --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://192.168.0.93:554/user=admin&password=&channel=0&stream=1.sdp?real_stream':
  Metadata:
    title           : RTSP Session
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 704x576, 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Output #0, rtsp, to 'rtsp://192.168.0.41:554/live/stream3':
  Metadata:
    title           : RTSP Session
    encoder         : Lavf58.45.100
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 704x576, q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc
    Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[rtsp @ 0000028b22694180] Non-monotonous DTS in output stream 0:0; previous: 21600, current: 3600; changing to 21601. This may result in incorrect timestamps in the output file.
[rtsp @ 0000028b22694180] Non-monotonous DTS in output stream 0:0; previous: 21601, current: 7200; changing to 21602. This may result in incorrect timestamps in the output file.
[rtsp @ 0000028b22694180] Non-monotonous DTS in output stream 0:0; previous: 21602, current: 10800; changing to 21603. This may result in incorrect timestamps in the output file.
[rtsp @ 0000028b22694180] Non-monotonous DTS in output stream 0:0; previous: 21603, current: 14400; changing to 21604. This may result in incorrect timestamps in the output file.
[rtsp @ 0000028b22694180] Non-monotonous DTS in output stream 0:0; previous: 21604, current: 18000; changing to 21605. This may result in incorrect timestamps in the output file.
[rtsp @ 0000028b22694180] Non-monotonous DTS in output stream 0:0; previous: 21605, current: 21600; changing to 21606. This may result in incorrect timestamps in the output file.
frame=  114 fps= 34 q=-1.0 Lsize=N/A time=00:00:04.56 bitrate=N/A speed=1.38x
video:151kB audio:36kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Exiting normally, received signal 2.
  • xiongmai相机推向linux版的 nginx-flv-server 
    ffmpeg -i "rtsp://192.168.0.90:554/user=admin&password=&channel=0&stream=1.sdp?real_stream" -c copy -flvflags no_duration_filesize -f flv rtmp://www.z-coding.com.cn/live/zhimakeji192.168.0.90
  • 从nginx以http形式读取取视频流 
    http://www.z-coding.com.cn:8088/live?app=live&stream=zhimakeji192.168.0.90
  • 测试用的html,在线调用flv.js 
    <!DOCTYPE html>
<html>

<head>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
    <title>flv.js demo</title>
    <style>
        .mainContainer {
    display: block;
    width: 1024px;
    margin-left: auto;
    margin-right: auto;
}

.urlInput {
    display: block;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    margin-top: 8px;
    margin-bottom: 8px;
}

.centeredVideo {
    display: block;
    width: 100%;
    height: 576px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: auto;
}

.controls {
    display: block;
    width: 100%;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
}
    </style>
</head>

<body>
    <div class="mainContainer">
        <video id="videoElement" class="centeredVideo" controls autoplay width="1024" height="576">Your browser is too old which doesn't support HTML5 video.</video>
    </div>
    <br>
    <div class="controls">
        <!--<button onclick="flv_load()">加载</button>-->
        <button onclick="flv_start()">开始</button>
        <button onclick="flv_pause()">暂停</button>
        <button onclick="flv_destroy()">停止</button>
        <input style="width:100px" type="text" name="seekpoint" />
        <button onclick="flv_seekto()">跳转</button>
    </div>
    <script src="https://cdn.bootcdn.net/ajax/libs/flv.js/1.5.0/flv.js"></script>
    <script>
        var player = document.getElementById('videoElement');
        if (flvjs.isSupported()) {
            var flvPlayer = flvjs.createPlayer({
                type: 'flv',
                url: 'http://192.168.0.41:80/live/zhima/192.168.0.85.flv'
            });
            flvPlayer.attachMediaElement(videoElement);
            flvPlayer.load(); //加载
        }

        function flv_start() {
            player.play();
        }

        function flv_pause() {
            player.pause();
        }

        function flv_destroy() {
            player.pause();
            player.unload();
            player.detachMediaElement();
            player.destroy();
            player = null;
        }

        function flv_seekto() {
            player.currentTime = parseFloat(document.getElementsByName('seekpoint')[0].value);
        }
    </script>
</body>

</html>

有用的ffmpeg命令行

参考:ffmpeg基础使用 - 简书 (jianshu.com)

ffmpeg -stimeout 3000000 -i "rtsp://192.168.0.12:554/user=admin&password=&channel=0&stream=0.sdp?real_stream" -r 1 -q:v 2 -f image2 pic-%03d.jpeg
  • -q:v表示存储jpeg的图像质量，一般2是高质量
  • -r 表示每一秒几帧
  • y 覆盖文件方式
ffmpeg -stimeout 3000000 -i "rtsp://192.168.0.12:554/user=admin&password=&channel=0&stream=0.sdp?real_stream" -q:v 2 -y -f image2 test.jpg 

ffmpeg -i input.mp4 -ss 00:00:20 -t 10 -r 1 -q:v 2 -f image2 pic-%03d.jpeg
  • -ss 设置开始的时间
  • -t 表示持续的时间
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