463 lines
18 KiB
Go
463 lines
18 KiB
Go
package video_server
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import (
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"context"
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"fmt"
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"io"
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"os"
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"os/exec"
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"path/filepath"
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"sort"
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"strconv"
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"strings"
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"time"
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"FireLeave_tool/logger"
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)
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// MergeVideo 合并视频文件 - 完全适配 mp4_merge --out 模式
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func MergeVideo(deviceUUID string, alarmTime int64) (string, error) {
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startTime := time.Now()
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logger.Logger.Printf("[%.3f] 开始合并视频 (DeviceUUID=%s, alarmTime=%d)", time.Since(startTime).Seconds(), deviceUUID, alarmTime)
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// 捕获所有异常，确保函数不会因为panic而崩溃
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defer func() {
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if err := recover(); err != nil {
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logger.Logger.Printf("[%.3f] 合并视频发生panic: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), err, deviceUUID)
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}
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}()
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// 检查视频目录
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videoDir := fmt.Sprintf("/usr/data/camera/%s", deviceUUID)
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logger.Logger.Printf("[%.3f] 检查视频目录: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), videoDir, deviceUUID)
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if _, err := os.Stat(videoDir); os.IsNotExist(err) {
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logger.Logger.Printf("[%.3f] 视频目录不存在: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), videoDir, deviceUUID)
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return "", fmt.Errorf("video directory not exist: %s", videoDir)
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} else if err != nil {
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logger.Logger.Printf("[%.3f] 检查视频目录失败: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), err, deviceUUID)
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return "", fmt.Errorf("check video directory failed: %v", err)
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}
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logger.Logger.Printf("[%.3f] 视频目录检查成功: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), videoDir, deviceUUID)
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// === 1. 时间对齐到 10 秒 ===
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logger.Logger.Printf("[%.3f] 开始时间对齐处理 (DeviceUUID=%s, alarmTime=%d)", time.Since(startTime).Seconds(), deviceUUID, alarmTime)
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alarmTimeAligned := alignTo10Seconds(alarmTime)
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alarmTimeStr := time.Unix(alarmTimeAligned, 0).Format("20060102150405")
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logger.Logger.Printf("[%.3f] 时间对齐结果: alarmTime=%d → aligned=%d (DeviceUUID=%s)", time.Since(startTime).Seconds(), alarmTime, alarmTimeAligned, deviceUUID)
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beforeTime := alarmTimeAligned - 10
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afterTime := alarmTimeAligned + 10
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beforeStr := time.Unix(beforeTime, 0).Format("20060102150405")
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afterStr := time.Unix(afterTime, 0).Format("20060102150405")
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paths := map[string]string{
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beforeStr: filepath.Join(videoDir, beforeStr+".mp4"),
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alarmTimeStr: filepath.Join(videoDir, alarmTimeStr+".mp4"),
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afterStr: filepath.Join(videoDir, afterStr+".mp4"),
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}
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// 查找视频文件
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videoFiles := []string{}
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logger.Logger.Printf("[%.3f] 开始查找视频文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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for name, path := range paths {
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logger.Logger.Printf("[%.3f] 检查文件: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), path, deviceUUID)
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if _, err := os.Stat(path); err == nil {
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videoFiles = append(videoFiles, path)
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logger.Logger.Printf("[%.3f] Found video: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), name+".mp4", deviceUUID)
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} else {
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logger.Logger.Printf("[%.3f] Missing video: %s (DeviceUUID=%s, error: %v)", time.Since(startTime).Seconds(), name+".mp4", deviceUUID, err)
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}
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}
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// === 2. 补充替代文件 ===
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logger.Logger.Printf("[%.3f] 当前找到 %d 个视频文件，开始补充替代文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), len(videoFiles), deviceUUID)
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if len(videoFiles) < 3 {
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logger.Logger.Printf("[%.3f] 视频文件不足3个，开始查找替代文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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allFiles, err := os.ReadDir(videoDir)
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if err != nil {
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logger.Logger.Printf("[%.3f] 读取目录失败: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), err, deviceUUID)
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} else {
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logger.Logger.Printf("[%.3f] 读取目录所有文件，共 %d 个文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), len(allFiles), deviceUUID)
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var candidates []struct {
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path string
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ts int64
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}
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for _, f := range allFiles {
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if !f.IsDir() && strings.HasSuffix(f.Name(), ".mp4") && !strings.Contains(f.Name(), "_joined") {
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if ts, err := parseSimpleTimestamp(f.Name()); err == nil {
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candidates = append(candidates, struct {
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path string
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ts int64
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}{filepath.Join(videoDir, f.Name()), ts})
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}
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}
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}
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logger.Logger.Printf("[%.3f] 找到 %d 个候选视频文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), len(candidates), deviceUUID)
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targets := []int64{beforeTime, alarmTimeAligned, afterTime}
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for _, target := range targets {
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if containsTimestamp(videoFiles, target) {
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continue
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}
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closest := findClosest(candidates, target)
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if closest != "" && !contains(videoFiles, closest) {
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videoFiles = append(videoFiles, closest)
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logger.Logger.Printf("[%.3f] Using fallback: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), filepath.Base(closest), deviceUUID)
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}
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}
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}
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}
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logger.Logger.Printf("[%.3f] 最终收集到 %d 个视频文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), len(videoFiles), deviceUUID)
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if len(videoFiles) < 2 {
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logger.Logger.Printf("[%.3f] 视频文件不足，至少需要 2 个文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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return "", fmt.Errorf("insufficient video files: %d", len(videoFiles))
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}
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// === 3. 排序 ===
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logger.Logger.Printf("[%.3f] 开始排序视频文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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sort.Slice(videoFiles, func(i, j int) bool {
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return getTimestampFromPath(videoFiles[i]) < getTimestampFromPath(videoFiles[j])
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})
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logger.Logger.Printf("[%.3f] Merging %d videos (DeviceUUID=%s):", time.Since(startTime).Seconds(), len(videoFiles), deviceUUID)
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for i, f := range videoFiles {
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logger.Logger.Printf("[%.3f] [%d] %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), i, filepath.Base(f), deviceUUID)
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}
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// === 4. 显式指定输出文件（100% 可控）===
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outputFile := fmt.Sprintf("%s.mp4_joined.mp4", alarmTimeStr)
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joinedPath := filepath.Join(videoDir, outputFile)
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logger.Logger.Printf("[%.3f] 输出文件路径: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, deviceUUID)
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// 清理旧文件（防止冲突）
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logger.Logger.Printf("[%.3f] 清理旧的输出文件 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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if err := os.Remove(joinedPath); err != nil && !os.IsNotExist(err) {
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logger.Logger.Printf("[%.3f] Failed to remove old output file %s: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, err, deviceUUID)
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} else if err == nil {
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logger.Logger.Printf("[%.3f] 旧的输出文件清理成功: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, deviceUUID)
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}
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// === 5. 调用 mp4_merge，显式 --out ===
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args := append(videoFiles, "--out", joinedPath)
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cmd := exec.Command("mp4_merge", args...)
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cmd.Stdout = logger.Logger.Writer()
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cmd.Stderr = logger.Logger.Writer()
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logger.Logger.Printf("[%.3f] 开始执行视频合并命令: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), cmd.Args, deviceUUID)
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mergeStartTime := time.Now()
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if err := cmd.Run(); err != nil {
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logger.Logger.Printf("[%.3f] 视频合并命令执行失败 (耗时:%.3fs): %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), time.Since(mergeStartTime).Seconds(), err, deviceUUID)
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return "", fmt.Errorf("mp4_merge failed: %v", err)
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}
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logger.Logger.Printf("[%.3f] 视频合并命令执行成功 (耗时:%.3fs) (DeviceUUID=%s)", time.Since(startTime).Seconds(), time.Since(mergeStartTime).Seconds(), deviceUUID)
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// === 6. 验证输出文件存在 ===
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logger.Logger.Printf("[%.3f] 验证输出文件是否存在: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, deviceUUID)
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if _, err := os.Stat(joinedPath); err != nil {
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logger.Logger.Printf("[%.3f] 输出文件未创建: %s, error: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, err, deviceUUID)
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return "", fmt.Errorf("output file not created: %s, error: %v", joinedPath, err)
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}
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info, err := os.Stat(joinedPath)
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if err != nil {
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logger.Logger.Printf("[%.3f] 获取输出文件信息失败: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), err, deviceUUID)
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return "", fmt.Errorf("stat output file failed: %v", err)
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}
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logger.Logger.Printf("[%.3f] Merged file created: %s (size: %d bytes) (DeviceUUID=%s)", time.Since(startTime).Seconds(), outputFile, info.Size(), deviceUUID)
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// === 7. 移动到 /data/upload/ ===
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logger.Logger.Printf("[%.3f] 开始移动文件到 /data/upload/ 目录 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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t := time.Unix(alarmTimeAligned, 0)
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year, month, day := t.Date()
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timestampPart := fmt.Sprintf("%d-%d-%d-%d", year, int(month), day, alarmTimeAligned)
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finalName := fmt.Sprintf("%s-%s.MP4", deviceUUID, timestampPart)
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finalPath := filepath.Join("/data/upload", finalName)
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logger.Logger.Printf("[%.3f] 最终文件路径: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), finalPath, deviceUUID)
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logger.Logger.Printf("[%.3f] 确保 /data/upload 目录存在 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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if err := os.MkdirAll("/data/upload", 0755); err != nil {
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logger.Logger.Printf("[%.3f] 创建 /data/upload 目录失败: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), err, deviceUUID)
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return "", fmt.Errorf("create /data/upload failed: %v", err)
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}
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// 跨分区复制 + 删除
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logger.Logger.Printf("[%.3f] 开始复制文件: %s → %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, finalPath, deviceUUID)
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copyStartTime := time.Now()
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if err := copyFile(joinedPath, finalPath); err != nil {
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logger.Logger.Printf("[%.3f] 文件复制失败 (耗时:%.3fs): %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), time.Since(copyStartTime).Seconds(), err, deviceUUID)
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return "", fmt.Errorf("copy failed: %v", err)
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}
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logger.Logger.Printf("[%.3f] 文件复制成功 (耗时:%.3fs) (DeviceUUID=%s)", time.Since(startTime).Seconds(), time.Since(copyStartTime).Seconds(), deviceUUID)
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logger.Logger.Printf("[%.3f] 删除临时文件: %s (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, deviceUUID)
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if err := os.Remove(joinedPath); err != nil {
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logger.Logger.Printf("[%.3f] Failed to delete temp file %s: %v (DeviceUUID=%s)", time.Since(startTime).Seconds(), joinedPath, err, deviceUUID)
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} else {
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logger.Logger.Printf("[%.3f] 临时文件删除成功 (DeviceUUID=%s)", time.Since(startTime).Seconds(), deviceUUID)
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}
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logger.Logger.Printf("[%.3f] Video merged and moved successfully: %s (DeviceUUID=%s, 总耗时:%.3fs)", time.Since(startTime).Seconds(), finalPath, deviceUUID, time.Since(startTime).Seconds())
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return finalPath, nil
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}
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// containsTimestamp 检查是否已有该时间戳
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func containsTimestamp(files []string, ts int64) bool {
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for _, f := range files {
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if getTimestampFromPath(f) == ts {
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return true
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}
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}
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return false
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}
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// findClosest 查找最接近的时间戳文件
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func findClosest(candidates []struct {
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path string
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ts int64
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}, target int64) string {
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var best string
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var minDiff int64 = 1<<63 - 1
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for _, c := range candidates {
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diff := abs(c.ts - target)
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if diff < minDiff {
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minDiff = diff
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best = c.path
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}
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}
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if minDiff <= 30 {
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return best
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}
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return ""
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}
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func abs(x int64) int64 {
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if x < 0 {
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return -x
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}
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return x
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}
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// copyFile 支持跨分区复制，带超时机制
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func copyFile(src, dst string) error {
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startTime := time.Now()
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logger.Logger.Printf("[%.3f] 开始复制文件: %s → %s", time.Since(startTime).Seconds(), src, dst)
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// 创建带超时的上下文
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ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer cancel()
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// 创建通道用于接收复制结果
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type copyResult struct {
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n int64
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err error
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}
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resultChan := make(chan copyResult, 1)
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// 在goroutine中执行复制操作
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go func() {
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// 打开源文件
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logger.Logger.Printf("[%.3f] 打开源文件: %s", time.Since(startTime).Seconds(), src)
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in, err := os.Open(src)
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if err != nil {
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resultChan <- copyResult{0, err}
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return
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}
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defer in.Close()
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// 创建目标文件
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logger.Logger.Printf("[%.3f] 创建目标文件: %s", time.Since(startTime).Seconds(), dst)
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out, err := os.Create(dst)
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if err != nil {
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resultChan <- copyResult{0, err}
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return
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}
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defer out.Close()
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// 获取源文件大小
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fileInfo, err := in.Stat()
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if err != nil {
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logger.Logger.Printf("[%.3f] 获取源文件信息失败: %v", time.Since(startTime).Seconds(), err)
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} else {
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logger.Logger.Printf("[%.3f] 源文件大小: %d 字节", time.Since(startTime).Seconds(), fileInfo.Size())
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}
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// 执行复制
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logger.Logger.Printf("[%.3f] 开始执行文件复制操作", time.Since(startTime).Seconds())
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copyStartTime := time.Now()
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n, err := io.Copy(out, in)
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elapsed := time.Since(copyStartTime)
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if err != nil {
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logger.Logger.Printf("[%.3f] 文件复制失败: %v, 已复制 %d 字节, 耗时 %v", time.Since(startTime).Seconds(), err, n, elapsed)
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resultChan <- copyResult{n, err}
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return
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}
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logger.Logger.Printf("[%.3f] 文件复制成功: 复制 %d 字节, 耗时 %v", time.Since(startTime).Seconds(), n, elapsed)
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// 同步文件到磁盘
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logger.Logger.Printf("[%.3f] 开始同步文件到磁盘", time.Since(startTime).Seconds())
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syncStartTime := time.Now()
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if err = out.Sync(); err != nil {
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logger.Logger.Printf("[%.3f] 文件同步失败: %v, 耗时 %v", time.Since(startTime).Seconds(), err, time.Since(syncStartTime))
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resultChan <- copyResult{n, err}
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return
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}
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logger.Logger.Printf("[%.3f] 文件同步成功, 耗时 %v", time.Since(startTime).Seconds(), time.Since(syncStartTime))
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resultChan <- copyResult{n, nil}
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}()
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// 等待复制结果或超时
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select {
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case result := <-resultChan:
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if result.err != nil {
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return result.err
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}
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case <-ctx.Done():
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err := ctx.Err()
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logger.Logger.Printf("[%.3f] 文件复制操作超时: %v", time.Since(startTime).Seconds(), err)
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return fmt.Errorf("copy file timeout: %v", err)
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}
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logger.Logger.Printf("[%.3f] 文件复制操作完成", time.Since(startTime).Seconds())
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return nil
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}
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// alignTo10Seconds 将时间对齐到最近的10秒间隔
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func alignTo10Seconds(timestamp int64) int64 {
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t := time.Unix(timestamp, 0)
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// 获取秒数并对齐到10秒
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seconds := t.Second()
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alignedSeconds := (seconds / 10) * 10
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// 创建新的时间
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alignedTime := time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), alignedSeconds, 0, t.Location())
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return alignedTime.Unix()
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}
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// parseSimpleTimestamp 解析简单的时间戳文件名
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func parseSimpleTimestamp(filename string) (int64, error) {
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nameWithoutExt := strings.TrimSuffix(filename, filepath.Ext(filename))
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if len(nameWithoutExt) != 14 {
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}
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// 解析时间戳
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year, _ := strconv.Atoi(nameWithoutExt[0:4])
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month, _ := strconv.Atoi(nameWithoutExt[4:6])
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day, _ := strconv.Atoi(nameWithoutExt[6:8])
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hour, _ := strconv.Atoi(nameWithoutExt[8:10])
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minute, _ := strconv.Atoi(nameWithoutExt[10:12])
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second, _ := strconv.Atoi(nameWithoutExt[12:14])
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t := time.Date(year, time.Month(month), day, hour, minute, second, 0, time.Local)
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return t.Unix(), nil
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}
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// getTimestampFromPath 从文件路径中提取时间戳
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func getTimestampFromPath(filePath string) int64 {
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filename := filepath.Base(filePath)
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timestamp, err := parseSimpleTimestamp(filename)
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if err != nil {
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return 0
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}
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return timestamp
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}
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// contains 检查切片是否包含某个元素
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func contains(slice []string, item string) bool {
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for _, s := range slice {
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if s == item {
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return true
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}
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}
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return false
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}
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// CleanupOldVideos 清理旧的合并视频文件，保留最近的 10 个
|
||
func CleanupOldVideos(deviceUUID string) {
|
||
const maxFiles = 10
|
||
videoDir := "/data/upload"
|
||
prefix := fmt.Sprintf("%s_", deviceUUID)
|
||
|
||
files, err := os.ReadDir(videoDir)
|
||
if err != nil {
|
||
logger.Logger.Printf("read the signals %s Error: %v", videoDir, err)
|
||
return
|
||
}
|
||
|
||
var videoFiles []os.DirEntry
|
||
for _, file := range files {
|
||
if strings.HasPrefix(file.Name(), prefix) && strings.HasSuffix(file.Name(), "_merged.mp4") {
|
||
videoFiles = append(videoFiles, file)
|
||
}
|
||
}
|
||
|
||
if len(videoFiles) <= maxFiles {
|
||
return
|
||
}
|
||
|
||
sort.Slice(videoFiles, func(i, j int) bool {
|
||
infoI, _ := videoFiles[i].Info()
|
||
infoJ, _ := videoFiles[j].Info()
|
||
return infoI.ModTime().Before(infoJ.ModTime())
|
||
})
|
||
|
||
for i := 0; i < len(videoFiles)-maxFiles; i++ {
|
||
filePath := filepath.Join(videoDir, videoFiles[i].Name())
|
||
if err := os.Remove(filePath); err != nil {
|
||
logger.Logger.Printf("Clean up old videos %s Error: %v", filePath, err)
|
||
} else {
|
||
logger.Logger.Printf("Clean up old videos: %s", filePath)
|
||
}
|
||
}
|
||
}
|
||
|
||
// CleanupOldRawVideos 清理推理程序生成的原始10s视频，保留最近60条
|
||
func CleanupOldRawVideos(deviceUUID string) {
|
||
// 清理主设备目录
|
||
cleanupRawVideosDirectory(filepath.Join("/usr/data/camera", deviceUUID))
|
||
|
||
// 清理火焰检测目录
|
||
cleanupRawVideosDirectory(filepath.Join("/usr/data/camera", deviceUUID+"_fire_check"))
|
||
}
|
||
|
||
// cleanupRawVideosDirectory 清理单个目录中的原始视频文件
|
||
func cleanupRawVideosDirectory(rawDir string) {
|
||
if _, err := os.Stat(rawDir); os.IsNotExist(err) {
|
||
return
|
||
}
|
||
|
||
files, err := os.ReadDir(rawDir)
|
||
if err != nil {
|
||
logger.Logger.Printf("Failed to read the original video directory %s: %v", rawDir, err)
|
||
return
|
||
}
|
||
|
||
var videoFiles []string
|
||
for _, file := range files {
|
||
if !file.IsDir() && filepath.Ext(file.Name()) == ".mp4" {
|
||
videoFiles = append(videoFiles, filepath.Join(rawDir, file.Name()))
|
||
}
|
||
}
|
||
|
||
if len(videoFiles) <= 60 {
|
||
return // 不超过60条，不清理
|
||
}
|
||
|
||
sort.Slice(videoFiles, func(i, j int) bool {
|
||
fi, _ := os.Stat(videoFiles[i])
|
||
fj, _ := os.Stat(videoFiles[j])
|
||
return fi.ModTime().Before(fj.ModTime())
|
||
})
|
||
|
||
for i := 0; i < len(videoFiles)-60; i++ {
|
||
if err := os.Remove(videoFiles[i]); err != nil {
|
||
logger.Logger.Printf("Failed to delete the old original video %s: %v", videoFiles[i], err)
|
||
} else {
|
||
logger.Logger.Printf("Clear the old original videos: %s", videoFiles[i])
|
||
}
|
||
}
|
||
}
|