Implement live view chunking configuration for HandleLiveStreamSD function

machinery/src/cloud/Cloud.go

@@ -672,6 +672,7 @@ func HandleLiveStreamSD(livestreamCursor *packets.QueueCursor, configuration *mo
 		// Check if we need to enable the live stream
 		if config.Capture.Liveview != "false" {
 
+			deviceId := config.Key
 			hubKey := ""
 			if config.Cloud == "s3" && config.S3 != nil && config.S3.Publickey != "" {
 				hubKey = config.S3.Publickey
@@ -706,16 +707,37 @@ func HandleLiveStreamSD(livestreamCursor *packets.QueueCursor, configuration *mo
 				img, err := rtspClient.DecodePacket(pkt)
 				if err == nil {
 					bytes, _ := utils.ImageToBytes(&img)
-					//encoded := base64.StdEncoding.EncodeToString(bytes)
 
-					// Split encoded image into chunks of 1kb
+					chunking := config.LiveviewChunking
+					if chunking != "true" {
+						encoded := base64.StdEncoding.EncodeToString(bytes)
+
+						valueMap := make(map[string]interface{})
+						valueMap["image"] = encoded
+						message := models.Message{
+							Payload: models.Payload{
+								Action:   "receive-sd-stream",
+								DeviceId: configuration.Config.Key,
+								Value:    valueMap,
+							},
+						}
+						payload, err := models.PackageMQTTMessage(configuration, message)
+						if err == nil {
+							mqttClient.Publish("kerberos/hub/"+hubKey, 0, false, payload)
+						} else {
+							log.Log.Info("cloud.HandleLiveStreamSD(): something went wrong while sending acknowledge config to hub: " + string(payload))
+						}
+
+					} else {
+
+						// Split encoded image into chunks of 2kb
 						// This is to prevent the MQTT message to be too large.
 						// By default, bytes are not encoded to base64 here; you are splitting the raw JPEG/PNG bytes.
 						// However, in MQTT and web contexts, binary data may not be handled well, so base64 is often used.
 						// To avoid base64 encoding, just send the raw []byte chunks as you do here.
 						// If you want to avoid base64, make sure the receiver can handle binary payloads.
 
-					chunkSize := 1 * 1024 // 1KB chunks
+						chunkSize := 2 * 1024 // 2KB chunks
 						var chunks [][]byte
 						for i := 0; i < len(bytes); i += chunkSize {
 							end := i + chunkSize
@@ -740,13 +762,13 @@ func HandleLiveStreamSD(livestreamCursor *packets.QueueCursor, configuration *mo
 								Payload: models.Payload{
 									Version:  "v1.0.0",
 									Action:   "receive-sd-stream",
-								DeviceId: configuration.Config.Key,
+									DeviceId: deviceId,
 									Value:    valueMap,
 								},
 							}
 							payload, err := models.PackageMQTTMessage(configuration, message)
 							if err == nil {
-							mqttClient.Publish("kerberos/hub/"+hubKey, 0, false, payload)
+								mqttClient.Publish("kerberos/hub/"+hubKey+"/"+deviceId, 1, false, payload)
 								log.Log.Infof("cloud.HandleLiveStreamSD(): sent chunk %d/%d to MQTT topic kerberos/hub/%s", i+1, len(chunks), hubKey)
 							} else {
 								log.Log.Info("cloud.HandleLiveStreamSD(): something went wrong while sending acknowledge config to hub: " + string(payload))
@@ -754,6 +776,7 @@ func HandleLiveStreamSD(livestreamCursor *packets.QueueCursor, configuration *mo
 						}
 					}
 				}
+			}
 
 		} else {
 			log.Log.Debug("cloud.HandleLiveStreamSD(): stopping as Liveview is disabled.")