Make Notification Video Length apply to new video extract method

libs/events/utils.js

@@ -18,6 +18,9 @@ module.exports = (s,config,lang,app,io) => {
     const {
         moveCameraPtzToMatrix
     } = require('../control/ptz.js')(s,config,lang)
+    const {
+        cutVideoLength
+    } = require('../video/utils.js')(s,config,lang)
     async function saveImageFromEvent(options,frameBuffer){
         const monitorId = options.mid || options.id
         const groupKey = options.ke
@@ -425,13 +428,24 @@ module.exports = (s,config,lang,app,io) => {
             if(activeMonitor && activeMonitor.eventBasedRecording && activeMonitor.eventBasedRecording.process){
                 const eventBasedRecording = activeMonitor.eventBasedRecording
                 const monitorConfig = s.group[groupKey].rawMonitorConfigurations[monitorId]
+                const videoLength = monitorConfig.details.detector_send_video_length
                 const recordingDirectory = s.getVideoDirectory(monitorConfig)
                 const fileTime = eventBasedRecording.lastFileTime
                 const filename = `${fileTime}.mp4`
                 response.filename = `${filename}`
                 response.filePath = `${recordingDirectory}${filename}`
                 eventBasedRecording.process.on('close',function(){
-                    setTimeout(() => {
+                    setTimeout(async () => {
+                        if(!isNaN(videoLength)){
+                            const cutResponse = await cutVideoLength({
+                                ke: groupKey,
+                                mid: monitorId,
+                                filePath: response.filePath,
+                                cutLength: parseInt(videoLength),
+                            })
+                            response.filename = cutResponse.filename
+                            response.filePath = cutResponse.filePath
+                        }
                         resolve(response)
                     },1000)
                 })

libs/video/utils.js

@@ -176,8 +176,42 @@ module.exports = (s,config,lang) => {
             finish()
         }
     }
+    function cutVideoLength(options){
+        return new Promise((resolve,reject) => {
+            const response = {ok: false}
+            const inputFilePath = options.filePath
+            const monitorId = options.mid
+            const groupKey = options.ke
+            const cutLength = options.cutLength || 10
+            const tempDirectory = s.getStreamsDirectory(options)
+            let fileExt = inputFilePath.split('.')
+            fileExt = fileExt[fileExt.length -1]
+            const filename = `${s.gid(10)}.${fileExt}`
+            const videoOutPath = `${tempDirectory}`
+            const cuttingProcess = spawn(config.ffmpegDir,['-loglevel','warning','-i', inputFilePath, '-c','copy','-t',`${cutLength}`,videoOutPath])
+            cuttingProcess.stderr.on('data',(data) => {
+                const err = data.toString()
+                s.debugLog('cutVideoLength',options,err)
+            })
+            cuttingProcess.on('close',(data) => {
+                fs.stat(videoOutPath,(err) => {
+                    if(!err){
+                        response.filename = filename
+                        response.filePath = videoOutPath
+                        setTimeout(() => {
+                            s.file('delete',videoOutPath)
+                        },1000 * 60 * 3)
+                    }else{
+                        s.debugLog('cutVideoLength:readFile',options,err)
+                    }
+                    resolve(response)
+                })
+            })
+        })
+    }
     return {
         orphanedVideoCheck: orphanedVideoCheck,
         scanForOrphanedVideos: scanForOrphanedVideos,
+        cutVideoLength: cutVideoLength,
     }
 }