广东省建设监理协会网站 首页,免费建站自助建站网站建设教程网站建设教程,湛江网吧,网站通知模板技术背景随着VR技术在医疗、军事、农业、学校、景区、消防、公共安全、研学机构、展厅展馆#xff0c;商场等场所普及#xff0c;开发者对Unity平台下的直播体验提出了更高的要求。技术实现Unity平台下的RTMP推流、RTMP、RTSP播放前几年已经覆盖了Windows、Linux、Android、i…技术背景随着VR技术在医疗、军事、农业、学校、景区、消防、公共安全、研学机构、展厅展馆商场等场所普及开发者对Unity平台下的直播体验提出了更高的要求。技术实现Unity平台下的RTMP推流、RTMP、RTSP播放前几年已经覆盖了Windows、Linux、Android、iOS平台。本文主要介绍Windows平台Unity环境下的轻量级RTSP服务。通过对外提供RTSP拉流URL的形式供内网其他终端调用。RTMP的技术方案我们之前有探讨过这里先说轻量级RTSP服务轻量级RTSP服务我们的设计是可以启动一个RTSP Service然后发布多个RTSP流实例这个在多实例的设计非常有价值简单来说一个RTSP Service下面挂载多个RTSP Stream对外提供RTSP拉流的URL整体设计方案如下我们看看支持的音视频采集选项其中视频这块除了Unity下的Camera场景覆盖还有Windows摄像头、屏幕数据音频采集覆盖了Unity声音、扬声器、麦克风还有混音数据。音视频原始数据采集到后编码注入RTSP服务和RTMP推送模块。二者可以单独使用也可同时使用。其中轻量级RTSP服务可实时查看链接的RTSP会话数。首先看启动RTSP service封装:/** PublisherWrapper.cs* Author: daniusdk.com*/
public bool StartRtspService()
{if (NTBaseCodeDefine.NT_ERC_OK ! NTSmartPublisherSDK.NT_PB_OpenRtspServer(ref rtsp_handle_, 0)){Debug.LogError(创建rtsp server实例失败! 请检查sdk有效性.);return false;}if (IntPtr.Zero rtsp_handle_){Debug.LogError(创建rtsp server实例失败! 请检查sdk有效性.);return false;}int port 28554;if (NTBaseCodeDefine.NT_ERC_OK ! NTSmartPublisherSDK.NT_PB_SetRtspServerPort(rtsp_handle_, port)){NTSmartPublisherSDK.NT_PB_CloseRtspServer(rtsp_handle_);rtsp_handle_ IntPtr.Zero;Debug.LogError(设置rtsp server端口失败,请检查端口是否重复或者端口不在范围内!);return false;}//String user_name admin;//String password 123456;//NTSmartPublisherSDK.NT_PB_SetRtspServerUserNamePassword(rtsp_handle, user_name, password);if (NTBaseCodeDefine.NT_ERC_OK NTSmartPublisherSDK.NT_PB_StartRtspServer(rtsp_handle_, 0)){Debug.Log(StartRtspServer suc..);}else{NTSmartPublisherSDK.NT_PB_CloseRtspServer(rtsp_handle_);rtsp_handle_ IntPtr.Zero;Debug.LogError(启动rtsp server失败, 请检查设置的端口是否被占用!);return false;}is_rtsp_service_running_ true;return true;
}停止RTSP Servicepublic void StopRtspService()
{if (is_rtsp_service_running_ false) return;NTSmartPublisherSDK.NT_PB_StopRtspServer(rtsp_handle_);NTSmartPublisherSDK.NT_PB_CloseRtspServer(rtsp_handle_);rtsp_handle_ IntPtr.Zero;is_rtsp_service_running_ false;
}服务启动后可以发布或停止RTSP流public bool StartRtspStream()
{if (CheckPublisherHandleAvailable() false) return false;if (publisher_handle_ IntPtr.Zero){return false;}if (publisher_handle_count_ 1){SetCommonOptionToPublisherSDK();}String rtsp_stream_name stream1;NTSmartPublisherSDK.NT_PB_SetRtspStreamName(publisher_handle_, rtsp_stream_name);NTSmartPublisherSDK.NT_PB_ClearRtspStreamServer(publisher_handle_);NTSmartPublisherSDK.NT_PB_AddRtspStreamServer(publisher_handle_, rtsp_handle_, 0);if (NTBaseCodeDefine.NT_ERC_OK ! NTSmartPublisherSDK.NT_PB_StartRtspStream(publisher_handle_, 0)){if (0 publisher_handle_count_){NTSmartPublisherSDK.NT_PB_Close(publisher_handle_);publisher_handle_ IntPtr.Zero;}Debug.LogError(调用发布rtsp流接口失败);return false;}publisher_handle_count_;is_rtsp_publisher_running_ true;return true;
}停止RTSP流public void StopRtspStream()
{publisher_handle_count_--;NTSmartPublisherSDK.NT_PB_StopRtspStream(publisher_handle_);if (0 publisher_handle_count_){NTSmartPublisherSDK.NT_PB_Close(publisher_handle_);publisher_handle_ IntPtr.Zero;}is_rtsp_publisher_running_ false;
}获取RTSP session连接数public int GetRtspSessionNumbers()
{int num 0;if (rtsp_handle_!IntPtr.Zero){if (NTBaseCodeDefine.NT_ERC_OK ! NTSmartPublisherSDK.NT_PB_GetRtspServerClientSessionNumbers(rtsp_handle_, ref num)){Debug.LogError(Call NT_PB_GetRtspServerClientSessionNumbers failed..);}}return num;
}封装部分看过后我们看看我们Unity下调用示例启动、停止RTSP服务public void btn_rtsp_service_Click()
{if (publisher_wrapper_.IsRtspServiceRunning()){publisher_wrapper_.StopRtspService();btn_rtsp_service_.GetComponentInChildrenText().text 启动RTSP服务;btn_rtsp_publisher_.interactable false;return;}if (!publisher_wrapper_.StartRtspService()){Debug.LogError(调用StartRtspService失败..);return;}btn_rtsp_publisher_.interactable true;btn_rtsp_service_.GetComponentInChildrenText().text 停止RTSP服务;
}发布、停止RTSP流public void btn_rtsp_publisher_Click()
{if (publisher_wrapper_.IsRtspPublisherRunning()){publisher_wrapper_.StopRtspStream();if (!publisher_wrapper_.IsPreviewing() !publisher_wrapper_.IsPushingRtmp()){StopCaptureAvData();if (coroutine_ ! null){StopCoroutine(coroutine_);coroutine_ null;}}btn_rtsp_service_.interactable true;btn_rtsp_publisher_.GetComponentInChildrenText().text 发布RTSP;}else{if (!publisher_wrapper_.IsRtspServiceRunning()){Debug.LogError(RTSP service is not running..);return;}if (!publisher_wrapper_.IsPreviewing() !publisher_wrapper_.IsPushingRtmp()){publisher_wrapper_.SetVideoPushType(video_push_type_);publisher_wrapper_.SetAudioPushType(audio_push_type_);}publisher_wrapper_.StartRtspStream();if (!publisher_wrapper_.IsPreviewing() !publisher_wrapper_.IsPushingRtmp()){StartCaptureAvData();coroutine_ StartCoroutine(OnPostVideo());}btn_rtsp_publisher_.GetComponentInChildrenText().text 停止RTSP;btn_rtsp_service_.interactable false;}
}获取RTSP Session链接数public void btn_get_rtsp_session_numbers_Click()
{if (publisher_wrapper_.IsRtspServiceRunning()){btn_get_rtsp_session_numbers_.GetComponentInChildrenText().text RTSP会话数: publisher_wrapper_.GetRtspSessionNumbers();}
}RTMP推送、停止推送public void btn_start_rtmp_pusher_Click()
{if (publisher_wrapper_.IsPushingRtmp()){StopPushRTMP();btn_rtmp_pusher_.GetComponentInChildrenText().text 推送RTMP;return;}String url rtmp_pusher_url_.text;if (url.Length 8){publisher_wrapper_.Close();Debug.LogError(请输入RTMP推送地址);return;}if (!publisher_wrapper_.IsPreviewing() !publisher_wrapper_.IsRtspPublisherRunning()){publisher_wrapper_.SetVideoPushType(video_push_type_);publisher_wrapper_.SetAudioPushType(audio_push_type_);}if (!publisher_wrapper_.StartRtmpPusher(url)){Debug.LogError(调用StartPublisher失败..);return;}btn_rtmp_pusher_.GetComponentInChildrenText().text 停止推送;if (!publisher_wrapper_.IsPreviewing() !publisher_wrapper_.IsRtspPublisherRunning()){StartCaptureAvData();coroutine_ StartCoroutine(OnPostVideo());}
}总结轻量级RTSP服务和RTMP推送的区别在于轻量级RTSP服务不需要单独部署流媒体服务器类似于网络摄像头在内网小并发场景下使用起来非常方便如果需要上公网还是需要用RTMP推送感兴趣的开发者可酌情参考。
