2025-09-26 11:55:38 +08:00
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package com.ruoyi.video.service;
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import cn.hutool.core.thread.ThreadUtil;
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import cn.hutool.crypto.digest.MD5;
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import com.ruoyi.video.common.ClientType;
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import com.ruoyi.video.domain.dto.CameraDto;
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import com.ruoyi.video.thread.MediaTransfer;
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import com.ruoyi.video.thread.MediaTransferFlvByFFmpeg;
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import com.ruoyi.video.thread.MediaTransferFlvByJavacv;
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import io.netty.channel.ChannelHandlerContext;
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import org.springframework.stereotype.Service;
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2025-09-27 17:37:58 +08:00
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.function.Consumer;
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2025-09-26 11:55:38 +08:00
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/**
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* 媒体服务,支持全局网络超时、读写超时、无人拉流持续时长自动关闭流等配置
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* @Author: orange
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* @CreateTime: 2025-01-16
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*/
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@Service
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public class MediaService {
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/**
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* 缓存流转换线程
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*/
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public static ConcurrentHashMap<String, MediaTransfer> cameras = new ConcurrentHashMap<>();
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/**
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* http-flv播放
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2025-09-27 17:37:58 +08:00
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* @param cameraDto 摄像头配置
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* @param ctx Netty上下文
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2025-09-26 11:55:38 +08:00
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*/
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public void playForHttp(CameraDto cameraDto, ChannelHandlerContext ctx) {
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if (cameras.containsKey(cameraDto.getMediaKey())) {
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MediaTransfer mediaConvert = cameras.get(cameraDto.getMediaKey());
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2025-09-27 17:37:58 +08:00
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if (mediaConvert instanceof MediaTransferFlvByJavacv) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByJavacv mediaTransferFlvByJavacv = (MediaTransferFlvByJavacv) mediaConvert;
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//如果当前已经用ffmpeg,则重新拉流
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2025-09-27 17:37:58 +08:00
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if (cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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mediaTransferFlvByJavacv.setRunning(false);
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cameras.remove(cameraDto.getMediaKey());
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this.playForHttp(cameraDto, ctx);
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} else {
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mediaTransferFlvByJavacv.addClient(ctx, ClientType.HTTP);
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}
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} else if (mediaConvert instanceof MediaTransferFlvByFFmpeg) {
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MediaTransferFlvByFFmpeg mediaTransferFlvByFFmpeg = (MediaTransferFlvByFFmpeg) mediaConvert;
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//如果当前已经用javacv,则关闭再重新拉流
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2025-09-27 17:37:58 +08:00
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if (!cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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mediaTransferFlvByFFmpeg.stopFFmpeg();
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cameras.remove(cameraDto.getMediaKey());
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this.playForHttp(cameraDto, ctx);
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} else {
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mediaTransferFlvByFFmpeg.addClient(ctx, ClientType.HTTP);
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}
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}
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} else {
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2025-09-27 17:37:58 +08:00
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if (cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByFFmpeg mediaft = new MediaTransferFlvByFFmpeg(cameraDto);
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mediaft.execute();
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cameras.put(cameraDto.getMediaKey(), mediaft);
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mediaft.addClient(ctx, ClientType.HTTP);
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} else {
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MediaTransferFlvByJavacv mediaConvert = new MediaTransferFlvByJavacv(cameraDto);
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cameras.put(cameraDto.getMediaKey(), mediaConvert);
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ThreadUtil.execute(mediaConvert);
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mediaConvert.addClient(ctx, ClientType.HTTP);
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}
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}
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}
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/**
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* ws-flv播放
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2025-09-27 17:37:58 +08:00
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* @param cameraDto 摄像头配置
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* @param ctx Netty上下文
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2025-09-26 11:55:38 +08:00
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*/
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public void playForWs(CameraDto cameraDto, ChannelHandlerContext ctx) {
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if (cameras.containsKey(cameraDto.getMediaKey())) {
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MediaTransfer mediaConvert = cameras.get(cameraDto.getMediaKey());
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2025-09-27 17:37:58 +08:00
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if (mediaConvert instanceof MediaTransferFlvByJavacv) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByJavacv mediaTransferFlvByJavacv = (MediaTransferFlvByJavacv) mediaConvert;
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//如果当前已经用ffmpeg,则重新拉流
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2025-09-27 17:37:58 +08:00
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if (cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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mediaTransferFlvByJavacv.setRunning(false);
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cameras.remove(cameraDto.getMediaKey());
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this.playForWs(cameraDto, ctx);
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} else {
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mediaTransferFlvByJavacv.addClient(ctx, ClientType.WEBSOCKET);
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}
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} else if (mediaConvert instanceof MediaTransferFlvByFFmpeg) {
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MediaTransferFlvByFFmpeg mediaTransferFlvByFFmpeg = (MediaTransferFlvByFFmpeg) mediaConvert;
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//如果当前已经用javacv,则关闭再重新拉流
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2025-09-27 17:37:58 +08:00
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if (!cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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mediaTransferFlvByFFmpeg.stopFFmpeg();
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cameras.remove(cameraDto.getMediaKey());
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this.playForWs(cameraDto, ctx);
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} else {
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mediaTransferFlvByFFmpeg.addClient(ctx, ClientType.WEBSOCKET);
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}
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}
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} else {
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2025-09-27 17:37:58 +08:00
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if (cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByFFmpeg mediaft = new MediaTransferFlvByFFmpeg(cameraDto);
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mediaft.execute();
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cameras.put(cameraDto.getMediaKey(), mediaft);
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mediaft.addClient(ctx, ClientType.WEBSOCKET);
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} else {
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MediaTransferFlvByJavacv mediaConvert = new MediaTransferFlvByJavacv(cameraDto);
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cameras.put(cameraDto.getMediaKey(), mediaConvert);
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ThreadUtil.execute(mediaConvert);
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mediaConvert.addClient(ctx, ClientType.WEBSOCKET);
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}
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}
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}
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/**
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* api播放
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2025-09-27 17:37:58 +08:00
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* @param cameraDto 摄像头配置
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* @return 是否启动成功
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2025-09-26 11:55:38 +08:00
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*/
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public boolean playForApi(CameraDto cameraDto) {
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// 区分不同媒体
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String mediaKey = MD5.create().digestHex(cameraDto.getUrl());
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cameraDto.setMediaKey(mediaKey);
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cameraDto.setEnabledFlv(true);
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MediaTransfer mediaTransfer = cameras.get(cameraDto.getMediaKey());
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if (null == mediaTransfer) {
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2025-09-27 17:37:58 +08:00
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if (cameraDto.isEnabledFFmpeg()) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByFFmpeg mediaft = new MediaTransferFlvByFFmpeg(cameraDto);
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mediaft.execute();
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cameras.put(cameraDto.getMediaKey(), mediaft);
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} else {
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MediaTransferFlvByJavacv mediaConvert = new MediaTransferFlvByJavacv(cameraDto);
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cameras.put(cameraDto.getMediaKey(), mediaConvert);
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ThreadUtil.execute(mediaConvert);
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}
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}
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mediaTransfer = cameras.get(cameraDto.getMediaKey());
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//同步等待
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2025-09-27 17:37:58 +08:00
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if (mediaTransfer instanceof MediaTransferFlvByJavacv) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByJavacv mediaft = (MediaTransferFlvByJavacv) mediaTransfer;
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// 30秒还没true认为启动不了
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for (int i = 0; i < 60; i++) {
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if (mediaft.isRunning() && mediaft.isGrabberStatus() && mediaft.isRecorderStatus()) {
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return true;
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}
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {
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2025-09-27 17:37:58 +08:00
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// ignore
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2025-09-26 11:55:38 +08:00
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}
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}
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} else if (mediaTransfer instanceof MediaTransferFlvByFFmpeg) {
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MediaTransferFlvByFFmpeg mediaft = (MediaTransferFlvByFFmpeg) mediaTransfer;
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// 30秒还没true认为启动不了
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for (int i = 0; i < 60; i++) {
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if (mediaft.isRunning()) {
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return true;
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}
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {
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2025-09-27 17:37:58 +08:00
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// ignore
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2025-09-26 11:55:38 +08:00
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}
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}
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}
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return false;
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}
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/**
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* 关闭流
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2025-09-27 17:37:58 +08:00
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* @param cameraDto 摄像头配置
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2025-09-26 11:55:38 +08:00
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*/
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public void closeForApi(CameraDto cameraDto) {
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cameraDto.setEnabledFlv(false);
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if (cameras.containsKey(cameraDto.getMediaKey())) {
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MediaTransfer mediaConvert = cameras.get(cameraDto.getMediaKey());
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2025-09-27 17:37:58 +08:00
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if (mediaConvert instanceof MediaTransferFlvByJavacv) {
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2025-09-26 11:55:38 +08:00
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MediaTransferFlvByJavacv mediaTransferFlvByJavacv = (MediaTransferFlvByJavacv) mediaConvert;
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mediaTransferFlvByJavacv.setRunning(false);
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cameras.remove(cameraDto.getMediaKey());
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} else if (mediaConvert instanceof MediaTransferFlvByFFmpeg) {
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MediaTransferFlvByFFmpeg mediaTransferFlvByFFmpeg = (MediaTransferFlvByFFmpeg) mediaConvert;
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mediaTransferFlvByFFmpeg.stopFFmpeg();
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cameras.remove(cameraDto.getMediaKey());
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}
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}
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}
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2025-09-27 17:37:58 +08:00
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/* =========================== 新增便捷方法 =========================== */
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/** 直接从缓存取 MediaTransfer(可能是 FFmpeg 或 JavaCV)。不存在返回 null。 */
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public MediaTransfer getMedia(String mediaKey) {
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return cameras.get(mediaKey);
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}
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/** 只取 JavaCV 实例;如果不是 JavaCV 或不存在则返回 null。 */
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public MediaTransferFlvByJavacv getJavacv(String mediaKey) {
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MediaTransfer mt = cameras.get(mediaKey);
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return (mt instanceof MediaTransferFlvByJavacv) ? (MediaTransferFlvByJavacv) mt : null;
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}
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/**
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* 取或启动 JavaCV 实例:
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* - 已有 JavaCV:直接返回
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* - 已有 FFmpeg:先停止 FFmpeg,再切换 JavaCV
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* - 不存在:启动 JavaCV
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*
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* @param cameraDto 需包含 url / mediaKey(mediaKey 为空则用 url 的 MD5 生成)
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* @param beforeStart 启动前对 cameraDto 做一次定制(可 null),例如 dto -> dto.setEnableDetection(true)
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*/
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public MediaTransferFlvByJavacv getOrStartJavacv(CameraDto cameraDto, Consumer<CameraDto> beforeStart) {
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// 兜底 mediaKey
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if (cameraDto.getMediaKey() == null || cameraDto.getMediaKey().isEmpty()) {
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String mediaKey = MD5.create().digestHex(cameraDto.getUrl());
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cameraDto.setMediaKey(mediaKey);
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}
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MediaTransfer mt = cameras.get(cameraDto.getMediaKey());
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if (mt instanceof MediaTransferFlvByJavacv) {
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return (MediaTransferFlvByJavacv) mt;
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}
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// 若已存在 FFmpeg 实例,先停掉
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if (mt instanceof MediaTransferFlvByFFmpeg) {
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((MediaTransferFlvByFFmpeg) mt).stopFFmpeg();
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cameras.remove(cameraDto.getMediaKey());
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}
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// 启动 JavaCV
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if (beforeStart != null) beforeStart.accept(cameraDto);
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MediaTransferFlvByJavacv mediaConvert = new MediaTransferFlvByJavacv(cameraDto);
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cameras.put(cameraDto.getMediaKey(), mediaConvert);
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ThreadUtil.execute(mediaConvert);
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return mediaConvert;
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}
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/** 可选:根据 mediaKey 强制停止并移除(两种实现都兼容) */
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public void stopByMediaKey(String mediaKey) {
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MediaTransfer mt = cameras.get(mediaKey);
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if (mt instanceof MediaTransferFlvByJavacv) {
|
|
|
|
|
|
((MediaTransferFlvByJavacv) mt).setRunning(false);
|
|
|
|
|
|
} else if (mt instanceof MediaTransferFlvByFFmpeg) {
|
|
|
|
|
|
((MediaTransferFlvByFFmpeg) mt).stopFFmpeg();
|
|
|
|
|
|
}
|
|
|
|
|
|
cameras.remove(mediaKey);
|
|
|
|
|
|
}
|
2025-09-26 11:55:38 +08:00
|
|
|
|
}
|