DragonWenLong
3dd0d4cc90
- 新增BGR565格式转换逻辑，支持RGB565与BGR565两种颜色格式- 视频上传接口增加code参数，默认值为1（RGB565） - 在VideoProcessUtil中实现convertFramesToBGR565方法 - 添加bgr565ToMp4工具方法用于将BGR565数据编码为MP4文件 - MQTT规则新增对“设备已收到通知”的处理逻辑 - 设备确认消息后更新数据库日志状态并推送SSE消息 - 引入ScheduledExecutorService延时推送SSE消息- 增加设备日志和设备Mapper依赖以支持数据操作
85 lines
2.7 KiB
Java
85 lines
2.7 KiB
Java
package com.fuyuanshen.app.service;
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import com.fuyuanshen.web.util.VideoProcessUtil;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.File;
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import java.util.Arrays;
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import java.util.List;
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/**
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* 视频处理服务
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*/
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@Slf4j
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@Service
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@RequiredArgsConstructor
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public class VideoProcessService {
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// 配置参数
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private static final int MAX_VIDEO_SIZE = 10 * 1024 * 1024;
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private static final List<String> SUPPORTED_FORMATS = Arrays.asList(".mp4", ".avi", ".mov", ".mkv");
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private static final int FRAME_RATE = 15;
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private static final int DURATION = 2;
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private static final int WIDTH = 160;
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private static final int HEIGHT = 80;
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private final VideoProcessUtil videoProcessUtil;
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public List<String> processVideo(MultipartFile file, int code) {
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// 1. 参数校验
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validateVideoFile(file);
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File tempFile = null;
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try {
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// 2. 创建临时文件
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tempFile = videoProcessUtil.createTempVideoFile(file);
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// 3. 处理视频并提取帧数据
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List<String> hexList = videoProcessUtil.processVideoToHex(
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tempFile, FRAME_RATE, DURATION, WIDTH, HEIGHT, code
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);
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log.info("code: {} hexList(前100个): {}", code,
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hexList.subList(0, Math.min(100, hexList.size())));
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log.info("视频处理成功，生成Hex数据长度: {}", hexList.size());
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return hexList;
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} catch (Exception e) {
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log.error("视频处理失败", e);
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throw new RuntimeException("视频处理失败", e);
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} finally {
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// 4. 清理临时文件
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videoProcessUtil.deleteTempFile(tempFile);
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}
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}
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/**
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* 验证视频文件
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*/
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private void validateVideoFile(MultipartFile file) {
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if (file == null || file.isEmpty()) {
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throw new IllegalArgumentException("上传文件不能为空");
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}
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if (!isVideoFile(file.getOriginalFilename())) {
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throw new IllegalArgumentException("只允许上传视频文件");
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}
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if (file.getSize() > MAX_VIDEO_SIZE) {
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throw new IllegalArgumentException("视频大小不能超过10MB");
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}
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}
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/**
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* 判断是否是支持的视频格式
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*/
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private boolean isVideoFile(String filename) {
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if (filename == null || filename.lastIndexOf('.') == -1) {
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return false;
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}
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String ext = filename.substring(filename.lastIndexOf('.')).toLowerCase();
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return SUPPORTED_FORMATS.contains(ext);
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}
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} |