| | |
| | | import com.sun.jna.Platform; |
| | | import lombok.extern.slf4j.Slf4j; |
| | | import org.springframework.beans.factory.annotation.Value; |
| | | import org.springframework.boot.ApplicationArguments; |
| | | import org.springframework.boot.ApplicationRunner; |
| | | import org.springframework.core.annotation.Order; |
| | | import org.springframework.stereotype.Service; |
| | | |
| | | import javax.annotation.PostConstruct; |
| | |
| | | **/ |
| | | @Service |
| | | @Slf4j(topic = "cmd") |
| | | public class MediaServiceImpl implements IMediaService { |
| | | @Order(2) |
| | | public class MediaServiceImpl implements IMediaService, ApplicationRunner { |
| | | @Resource |
| | | VtduMapper vtduMapper; |
| | | @Resource |
| | | MediaClient mediaClient; |
| | | |
| | | @Value("${mediamtx.host}") |
| | | String mediamtxHost; |
| | | @Value("${mediamtx.enabled}") |
| | |
| | | |
| | | String processName = "mediamtx.exe"; |
| | | |
| | | static{ |
| | | |
| | | @Override |
| | | public void run(ApplicationArguments args){ |
| | | try { |
| | | log.info("开始加载流媒体列表"); |
| | | List<StreamInfo> paths = paths(); |
| | | for (StreamInfo path : paths) { |
| | | mediaClient.removePath(path.getName()); |
| | | } |
| | | List<Vtdu> vtduList = vtduMapper.selectVtduList(new Vtdu()); |
| | | for (Vtdu v : vtduList) { |
| | | addPath(v.getName(), v.getRtspUrl(), v.getCodeType(), v.getIsCode()); |
| | | } |
| | | } |
| | | catch (Exception ex) |
| | | { |
| | | log.error("加载流媒体列表异常:"+ex.getMessage()); |
| | | } |
| | | } |
| | | @PostConstruct |
| | | public void initMediaMtx() { |
| | | if (mediamtxEnabled) { |
| | | log.info("初始化启动mediaMTX"); |
| | | if (Platform.isWindows()) { |
| | | String exePath = System.getProperty("user.dir") + File.separator + "lib" + File.separator + "mediamtx" + File.separator + "mediamtx.exe"; |
| | | String ymlPath = System.getProperty("user.dir") + File.separator + "lib" + File.separator + "mediamtx" + File.separator + "mediamtx.yml"; |
| | |
| | | // String[] command = {"cmd","/c","start",exePath,ymlPath}; |
| | | // CmdUtils.commandStart(command); |
| | | } |
| | | } |
| | | try { |
| | | Thread.sleep(2000); // 等待5秒 |
| | | } catch (InterruptedException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | List<StreamInfo> paths = paths(); |
| | | for(StreamInfo path:paths) |
| | | { |
| | | mediaClient.removePath(path.getName()); |
| | | } |
| | | List<Vtdu> vtduList = vtduMapper.selectVtduList(new Vtdu()); |
| | | for (Vtdu v : vtduList) { |
| | | addPath(v.getName(), v.getRtspUrl(), v.getCodeType(), v.getIsCode()); |
| | | } |
| | | } |
| | | |
| | |
| | | //-vcodec libx264 //指定视频编码器为 libx264,使用 H.264 编码格式进行视频压缩 |
| | | //-preset ultrafast //--preset的参数主要调节编码速度和质量的平衡,有ultrafast(转码速度最快,视频往往也最模糊)、superfast、veryfast、faster、fast、medium、slow、slower、veryslow、placebo这10个选项,从快到慢 |
| | | //-r 25 //设置输出视频的帧率为 25 帧/秒 |
| | | //-g 20 //关键帧间隔20 |
| | | //-rtsp_transport tcp //这个选项告诉 FFmpeg 使用 TCP 作为 RTSP 的传输协议 |
| | | //-threads 4: 指定要使用的线程数为 4。//这允许 FFmpeg 在多核处理器上使用多个线程来进行视频编码,以加快速度。 |
| | | // -i //用于指定输入媒体文件或输入流的地址 |
| | |
| | | //GPU硬解码编码 -hwaccel cuvid -c:v h264_cuvid 使用cuda解码 -c:v h264_nvenc 使用cuda编码 |
| | | //String cmd = rootPath + "/lib/mediamtx/" + "ffmpeg -hwaccel cuvid -c:v h264_cuvid -rtsp_transport udp -i " + rtspPath + " -c:v h264_nvenc -r 25 -threads 4 -b:v 2048k -bf 0 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH"; |
| | | if (isCode.equals("1")) { |
| | | String cmd = "ffmpeg -rtsp_transport tcp -i " + rtspPath + " -vcodec libx264 -preset:v ultrafast -r 25 -threads 6 -b:v 1024k -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH"; |
| | | String cmd = "ffmpeg -rtsp_transport tcp -i " + rtspPath + " -vcodec libx264 -preset:v ultrafast -r 25 -g 20 -threads 6 -b:v 2048k -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH"; |
| | | if (!softwareDecoding) { |
| | | cmd = "ffmpeg -hwaccel cuvid -c:v h264_cuvid -rtsp_transport tcp -i " + rtspPath + " -c:v h264_nvenc -r 25 -threads 6 -b:v 2048k -bf 0 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH"; |
| | | } |
| | |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | } |