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potmat / homebridge-google-nest-sdm

A Homebridge plugin for Google Nest devices that uses the Google Smart Device Management API. Supports Cameras, Doorbells, Displays, and Thermostats. Includes support for HomeKit Secure Video.
ISC License
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Camera Stream Fails with Strange WebRTC Cryptographic Error #68

Closed yuxiangc25 closed 1 year ago

yuxiangc25 commented 1 year ago

The SDM support for the new wired nest doorbell is added by Google today. I can successly detect the device using this plugin but when trying to open the live video, I see following error:

[homebridge-google-nest-sdm] Error: Cannot get schema for 'Array' target at AsnSchemaStorage.get (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/asn1-schema/build/cjs/schema.js:17:19) at Function.toASN (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/asn1-schema/build/cjs/serializer.js:24:48) at Function.toAsnItem (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/asn1-schema/build/cjs/serializer.js:152:33) at Function.toASN (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/asn1-schema/build/cjs/serializer.js:52:48) at Function.serialize (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/asn1-schema/build/cjs/serializer.js:14:21) at Function.serialize (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/asn1-schema/build/cjs/convert.js:10:43) at Function.create (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/@peculiar/x509/build/x509.cjs.js:2405:43) at runMicrotasks () at processTicksAndRejections (node:internal/process/task_queues:96:5) at Function.CipherContext.createSelfSignedCertificateWithKey (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/dtls/src/context/cipher.ts:111:18) at RTCDtlsTransport.setupCertificate (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/werift/src/transport/dtls.ts:69:9) at RTCPeerConnection.createOffer (/usr/lib/node_modules/homebridge-google-nest-sdm/node_modules/werift/src/peerConnection.ts:221:7) at WebRtcNestStreamer.initialize (/usr/lib/node_modules/homebridge-google-nest-sdm/src/NestStreamer.ts:104:21) at DoorbellStreamingDelegate.startStream (/usr/lib/node_modules/homebridge-google-nest-sdm/src/StreamingDelegate.ts:300:20)

potmat commented 1 year ago

Hi @yuxiangc25, something failed way down in the bowels of WebRTC. What environment are you running the plugin on?

yuxiangc25 commented 1 year ago

Hi @potmat , the plugin runs on a Raspberry Pi 4 Model B,

OS version: PRETTY_NAME="Raspbian GNU/Linux 10 (buster)" NAME="Raspbian GNU/Linux" VERSION_ID="10" VERSION="10 (buster)" VERSION_CODENAME=buster ID=raspbian ID_LIKE=debian

potmat commented 1 year ago

Looks like there's some problem with cyptography when creating the offer SDP. What could be causing this I haven't the foggiest idea. I'm using a RPi4 myself without issues. Maybe try installing the preconfigured homebridge image: https://github.com/homebridge/homebridge-raspbian-image/releases/tag/v1.0.39

yuxiangc25 commented 1 year ago

Update: I tried to set this plugin as child bridge, and paired with homekit again...then it worked. Thanks!