c# rtmp推流示例

以下是使用 Live555 库进行 RTMP 推流的示例代码，需要在项目中引入 Live555 库：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using Live;
using Live.LiveMedia;

namespace RtmpPusher
{
    class RtmpPusher
    {
        private RTMPClient rtmpClient;
        private H264VideoStreamSource videoSource;

        public RtmpPusher()
        {
            rtspClient = new RTSPClient(Environment.GetCommandLineArgs()[1], 0, null, 0, -1);
            videoSource = H264VideoStreamSource.createNew(Envir.instance(), null);
            videoSource.setFramerate(30);
            videoSource.start();
            videoSource.getNextFrame(true);
            rtspClient.setStreamSource(videoSource, null, null, null);
            rtspClient.sendDescribeCommand(new RTSPClient.DescribeCallback(describeCallback));
        }

        private void describeCallback(RTSPClient.clientContinueFunc continueFunc)
        {
            rtspClient.sendSetupCommand(0, new RTSPClient.SetupCallback(setupCallback));
        }

        private void setupCallback(RTSPClient.clientContinueFunc continueFunc, int resultCode, string resultString, Session session, MediaSubsession subsession)
        {
            rtspClient.sendPlayCommand(continueFunc, 0.0f, -1.0f, 1.0f);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPlayCommand(continueFunc, 0.0f, -1.0f, 1.0f);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPlayCommand(continueFunc, 0.0f, -1.0f, 1.0f);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPlayCommand(continueFunc, 0.0f, -1.0f, 1.0f);

            rtspClient.sendOptionsCommand(continueFunc, 0);
            rtspClient.sendAnnounceCommand(continueFunc, null);
            rtspClient.sendRecordCommand(continueFunc, null);
            rtspClient.sendTeardownCommand(continueFunc, null);
            rtspClient.sendOptionsCommand(continueFunc, 1);
            rtspClient.sendSetParameterCommand(continueFunc, null);
            rtspClient.sendGetParameterCommand(continueFunc, null);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPlayCommand(continueFunc, 0.0f, -1.0f, 1.0f);
            rtspClient.sendGetParameterCommand(continueFunc, null);
        }

        public void pushStream()
        {
            // 指定 RTMP 服务器地址和应用名称以及流名称
            rtspClient.sendAnnounceCommand(new RTSPClient.AnnounceCallback(announceCallback),
                "rtmp://server-ip-address/application/stream-name",
                "rtmp",
                "video/avc",
                "H264",
                "96",
                null);
        }

        private void announceCallback(RTSPClient.clientContinueFunc continueFunc, int resultCode, string resultString)
        {
            rtspClient.sendSetParameterCommand(continueFunc, null);
            rtspClient.sendOptionsCommand(continueFunc, 1);
            rtspClient.sendGetParameterCommand(continueFunc, null);
            rtspClient.sendPauseCommand(continueFunc, 0.0f);
            rtspClient.sendPlayCommand(continueFunc, 0.0f, -1.0f, 1.0f);
            rtspClient.sendGetParameterCommand(continueFunc, null);
        }

        public void close()
        {
            rtspClient.sendTeardownCommand(null, null);
        }
    }
}

这个示例代码使用了 Live555 库中的 RTSPClient 和 H264VideoStreamSource 类，通过 RTSPClient 从 RTSP 服务器获取视频流，然后使用 H264VideoStreamSource 将视频流转换为 H.264 编码格式，并将其推送到 RTMP 服务器上。需要注意的是，这只是一个简单的示例，实际应用中还需要根据具体需求进行修改和调整。