provider-analysis

Apps & Automation

Use this skill when integrating, debugging, or auditing third-party provider integrations (transcription APIs, MediaMTX, Jitsi, future Eventyay API integration).

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Skill: Provider Analysis

Use this skill when integrating, debugging, or auditing third-party provider integrations (transcription APIs, MediaMTX, Jitsi, future Eventyay API integration).

MediaMTX

Role: Media server — WHIP ingest, WHEP playback, RTSP for transcription.

Key integration points

Endpoint	Used by	Purpose
`{MEDIAMTX_WHIP_BASE}/{path}/whip`	Browser (JS)	Interpreter audio ingest
`{MEDIAMTX_WHIP_BASE}/{path}/whep`	Browser (JS)	Listener audio playback
`rtsp://mediamtx:8554/{path}`	ffmpeg (Python)	Transcription audio source
`{MEDIAMTX_API_BASE}/v3/config/paths/add/{path}`	FastAPI (`_ensure_mediamtx_path`)	Create named path with `alwaysAvailable`
`{MEDIAMTX_API_BASE}/v3/config/paths/patch/{path}`	FastAPI (fallback)	Update existing path config
`{MEDIAMTX_API_BASE}/v3/paths/list`	FastAPI (`_check_mediamtx`)	Reachability check

`alwaysAvailable` path creation

Called before returning WHIP URL or rendering booth page.
Creates named path so WHEP readers survive publisher handoffs.
Cache: _created_paths set prevents duplicate API calls.
Idempotent: if path exists, PATCHes it to ensure alwaysAvailable: True.

`overridePublisher`

Set in mediamtx.yml — allows a new WHIP publisher to kick the previous one. Enables seamless handoff when coordinator reassigns active interpreter.

Reachability check

await _check_mediamtx()  # returns True if API responds < 500

Used by /healthz and booth page template.

Jitsi Meet

Role: Floor session monitoring — receive-only iframe embedded in interpreter booth.

Integration

Embedded as an iframe in templates/interpreter_booth.html.
URL: room-specific Jitsi URL from DBBooth.room.jitsi_url (admin-configured) OR _make_jitsi_url(base_url, default_jitsi_room).
URL format: {effective_jitsi_base_url}/{room_name} (if room is not already a full URL).
Domain passed to template as jitsi_domain (derived from effective_jitsi_base_url).
Self-hosted; image: jitsi/*:stable-9823.

Jitsi room naming convention (auto-generated)

When admin creates a room, a Jitsi URL is auto-generated:

clean_name = re.sub(r'[^a-zA-Z0-9]+', '', display_name)
room_id_str = f"Voxbento-{event.slug}-{clean_name}"
jitsi_url = _make_jitsi_url(effective_jitsi_base_url, room_id_str)

Critical: Jitsi is monitoring only

Never use Jitsi's audio as the broadcast source. Interpreter mic → WHIP → MediaMTX is the only valid ingest path.

OpenAI (Transcription)

whisper-1: POST https://api.openai.com/v1/audio/transcriptions — WAV file upload per 3-second chunk.
gpt-4o-realtime: wss://api.openai.com/v1/realtime?model={model} — WebSocket streaming with PCM frames.
Auth: Authorization: Bearer {api_key} header.
API key: stored encrypted as events.openai_api_key; requires event.transcription_api_enabled = True.
Retry: tenacity, exponential backoff 2–10s, max 3 attempts on 429/5xx.
HTTP client: portal.transcription.shared_http_client (shared httpx.AsyncClient).

Deepgram (Transcription)

wss://api.deepgram.com/v1/listen?model=nova-2&language={lang}&encoding=linear16&sample_rate=16000&channels=1&interim_results=true&keepalive=true&endpointing=2000&smart_format=true&punctuate=true
Auth: Authorization: Token {api_key}.
Protocol: WebSocket streaming — send raw PCM, receive JSON transcripts.
KeepAlive: sends {"type":"KeepAlive"} every 5 seconds if no audio.
API key: events.deepgram_api_key.

NVIDIA Riva (Transcription)

Parakeet-RNNT / Parakeet-CTC via Riva gRPC.
Requires optional dependency: uv add eventyay-interpretation-portal[nvidia].
Function ID configured via settings.nvidia_function_id (from NVIDIA_FUNCTION_ID env var).
API key: events.nvidia_api_key.

ElevenLabs (Transcription)

scribe_v2 model.
API key: events.elevenlabs_api_key.
Implementation in portal/transcription/providers/elevenlabs.py.

API Key Security Pattern

All external API keys follow this pattern:

Admin enters key via admin panel form.
Key encrypted via portal.crypto.encrypt_val(key) → stored in DB.
At transcription start: get_api_key(event, ProviderEnum.X) → decrypt_val(encrypted_col).
API_KEY_ENCRYPTION_KEY must be set as env var (≥32 chars); fails loudly if default.
Key rotation: add new key as prefix to comma-separated API_KEY_ENCRYPTION_KEY; MultiFernet tries all keys.

Future Eventyay Integration

Currently there is no live API coupling to Eventyay. The pattern mirrors Eventyay conventions only:

Event.slug mirrors Eventyay event slug.
Room.eventyay_room_id is a nullable foreign reference (not yet used).
Role names match Eventyay role conventions.

When integrating: use portal.* imports; do not couple to pretix.*, pretalx.*, or venueless.*.