Files
Dermot Duffy 11cc543406 fix: Hold the 2-way audio backchannel open for the shortest possible time (#2697)
The card claimed a camera's ONVIF audio backchannel in two places that
had
nothing to do with a call: the capability probe at camera init
(`&microphone`),
and a pre-armed `sendonly` audio transceiver on every live WebRTC offer.
Merely
looking at a dashboard occupied the camera's speaker line. Outbound
audio now
travels on its own audio-only WebRTC connection, opened when a call is
answered
and closed when it ends.

- The backchannel is claimed only for the duration of a call. Idle
viewing
  claims nothing.
- Two-way audio now works in `mse`, `mp4` and `mjpeg` modes (note: the
outbound
  audio still traverses WebRTC).
- No renegotiation and no video blink at call start or end.
- A call that cannot carry audio now reports it and ends, instead of
showing a
  live microphone that goes nowhere.
- `live.microphone.always_connected` is now purely about the browser
microphone
  permission prompt.
- Call setup measured at 66ms (LAN) and ~260ms (cellular) for ICE and
DTLS, plus
  ~300ms for `go2rtc` to open an RTSP backchannel.

Verified against a live Frigate + `go2rtc` instance, and by unit tests
at 100%
coverage.

 - Closes #2691
 - Closes #2039
 - Closes #2178

Ref #2299 -- the probe no longer opens a backchannel, but it still runs
per
camera on every load and reconnect, and still dials the camera on the
direct-`go2rtc` path. Caching remains to be done.

Ref AlexxIT/go2rtc#1860 -- once a call has opened a backchannel,
`go2rtc` keeps
that media set up on the camera's RTSP session for the life of the
producer.

Diagnoses #2678
2026-08-21 20:13:58 -07:00

117 lines
2.7 KiB
TypeScript

import { describe, expect, it } from 'vitest';
import {
getGo2RTCMetadataEndpoint,
getGo2RTCStreamEndpoint,
} from '../../src/go2rtc/endpoint.js';
import { createCameraConfig } from '../config/test-utils';
describe('getGo2RTCStreamEndpoint', () => {
it('with local configuration', () => {
expect(
getGo2RTCStreamEndpoint(
createCameraConfig({
go2rtc: {
stream: 'stream',
url: '/local/path',
},
}),
),
).toEqual({
endpoint: '/local/path/api/ws?src=stream',
sign: true,
});
});
it('with remote configuration', () => {
expect(
getGo2RTCStreamEndpoint(
createCameraConfig({
go2rtc: {
stream: 'stream',
url: 'https://my-custom-go2rtc',
},
}),
),
).toEqual({
endpoint: 'https://my-custom-go2rtc/api/ws?src=stream',
sign: false,
});
});
it('should encode the stream name', () => {
expect(
getGo2RTCStreamEndpoint(
createCameraConfig({
go2rtc: {
stream: 'front door&microphone',
url: '/local/path',
},
}),
),
).toEqual({
endpoint: '/local/path/api/ws?src=front%20door%26microphone',
sign: true,
});
});
it('without configuration', () => {
expect(getGo2RTCStreamEndpoint(createCameraConfig())).toBeNull();
});
});
describe('getGo2RTCMetadataEndpoint', () => {
it('with local configuration', () => {
expect(
getGo2RTCMetadataEndpoint(
createCameraConfig({
go2rtc: {
stream: 'stream',
url: '/local/path',
},
}),
),
).toEqual({
endpoint: '/local/path/api/streams?src=stream&video=all&audio=all',
sign: true,
});
});
it('with remote configuration', () => {
expect(
getGo2RTCMetadataEndpoint(
createCameraConfig({
go2rtc: {
stream: 'stream',
url: 'https://my-custom-go2rtc',
},
}),
),
).toEqual({
endpoint: 'https://my-custom-go2rtc/api/streams?src=stream&video=all&audio=all',
sign: false,
});
});
it('should encode the stream name so it cannot add probe parameters', () => {
expect(
getGo2RTCMetadataEndpoint(
createCameraConfig({
go2rtc: {
stream: 'front door&microphone',
url: '/local/path',
},
}),
),
).toEqual({
endpoint:
'/local/path/api/streams?src=front%20door%26microphone&video=all&audio=all',
sign: true,
});
});
it('without configuration', () => {
expect(getGo2RTCMetadataEndpoint(createCameraConfig())).toBeNull();
});
});