Sergey Krashevich
8a21809f18
- implement ONVIF motion watcher to handle motion events - add configuration options for motion hold time and ONVIF URL - remap motion mode from "onvif" to "api" for compatibility - log ONVIF motion watcher activity for better debugging feat(onvif): implement event subscription for motion detection - create PullPoint subscription to receive motion events - implement methods for pulling messages and renewing subscriptions - handle event requests and responses specific to motion detection test(onvif): add unit tests for motion event parsing and subscription - create tests for parsing various motion event XML responses - verify correct handling of multiple notifications and edge cases - test resolving event addresses for ONVIF clients fix(hksv): improve motion detection logging - log warnings when accessory or character not found during motion detection - log number of listeners notified during motion state changes feat(hap): add listener count method - introduce method to retrieve the number of listeners for a character feat(onvif): enhance ONVIF client with event URL handling - extract event URL from ONVIF device response for subscription management
Home Accessory Protocol
PS. Character = Characteristic
Device - HomeKit end device (swith, camera, etc)
- mDNS name:
MyCamera._hap._tcp.local. - DeviceID - mac-like:
0E:AA:CE:2B:35:71 - HomeKit device is described by:
- one or more
Accessories- hasAIDandServices Services- hasIID,TypeandCharactersCharacters- hasIID,Type,FormatandValue
- one or more
Client - HomeKit client (iPhone, iPad, MacBook or opensource library)
- ClientID - static random UUID
- ClientPublic/ClientPrivate - static random 32 byte keypair
- can pair with Device (exchange ClientID/ClientPublic, ServerID/ServerPublic using Pin)
- can auth to Device using ClientPrivate
- holding persistant Secure connection to device
- can read device Accessories
- can read and write device Characters
- can subscribe on device Characters change (Event)
Server - HomeKit server (soft on end device or opensource library)
- ServerID - same as DeviceID (using for Client auth)
- ServerPublic/ServerPrivate - static random 32 byte keypair
AAC ELD
Requires ffmpeg built with --enable-libfdk-aac
-acodec libfdk_aac -aprofile aac_eld
| SampleRate | RTPTime | constantDuration | objectType |
|---|---|---|---|
| 8000 | 60 | =8000/1000*60=480 | 39 (AAC ELD) |
| 16000 | 30 | =16000/1000*30=480 | 39 (AAC ELD) |
| 24000 | 20 | =24000/1000*20=480 | 39 (AAC ELD) |
| 16000 | 60 | =16000/1000*60=960 | 23 (AAC LD) |
| 24000 | 40 | =24000/1000*40=960 | 23 (AAC LD) |
Useful links
- https://github.com/apple/HomeKitADK/blob/master/Documentation/crypto.md
- https://github.com/apple/HomeKitADK/blob/master/HAP/HAPPairingPairSetup.c
- Extracting HomeKit Pairing Keys
- HAP in AirPlay2 receiver
- HomeKit Secure Video Unofficial Specification
- Homebridge Camera FFmpeg
- https://github.com/ljezny/Particle-HAP/blob/master/HAP-Specification-Non-Commercial-Version.pdf