janus-echotest-plugin

An independently installable, fully typed client for the Janus EchoTest plugin. It depends only on janus-api-core; importing it does not install any other named Janus plugin.

from janus_api.models.base import Jsep
from janus_echotest_plugin import EchoTestPlugin

echo = EchoTestPlugin(session=session)
await echo.attach()
reply = await echo.negotiate(
    Jsep(type="offer", sdp=local_offer),
    audio=True,
    video=True,
    bitrate=1_500_000,
)
remote_answer = reply.jsep

configure() changes media, recording, bitrate, simulcast, or SVC settings without renegotiating. negotiate() requires an offer and returns the outer JSEP answer alongside typed plugin data. Plugin and Janus envelope failures are raised as typed exceptions.

The request schema follows the official EchoTest API. Outbound messages reject undocumented keys; inbound events retain unknown future keys.