wip temp

Add new options to query start-start recording API. A resolution
("540p", "720p", "1080p") and a profile ("talking_heads", "text", "mixed")
are resolved to provide a width, height, fps and bitrate which
are passed on to the encoder. Using profiles allows for some flexibility
on quality if necessary without changing front facing user config.

Co-authored-by: sarthakbahal <sarthakbahal.45@gmail.com>

CHANGELOG.md

@@ -8,8 +8,16 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Added
+
+- ✨(backend) add per-recording encoding quality presets to start-recording API
+
 ## [1.30.0] - 2026-09-01
 
+### Changed
+
+- ♿️(frontend) close side panel with Escape key #1507
+
 ### Added
 
 - ✨(agent) support Voxtral realtime as inference engine
@@ -25,7 +33,6 @@ and this project adheres to
 - ⬆️(frontend) upgrade @fontsource/opendyslexic from 5.2.5 to 5.3.0
 - ⬆️(addons) upgrade core-js from 3.49.0 to 3.50.0
 - ♻️(backend) factorize s3 client creation in utils
-- ♿️(frontend) close side panel with Escape key #1507
 
 ### Fixed
 

UPGRADE.md

@@ -16,6 +16,92 @@ the following command inside your docker container:
 
 ## [Unreleased]
 
+### Recording encoding settings replaced by a resolution/profile model
+
+The `RECORDING_ENCODING_*` settings introduced in v1.16.0 exposed raw encoder
+values (width, height, framerate, bitrate). They are replaced by two named and configurable sets of
+dimensions, a **resolution** (default: `540p`, `720p`, `1080p`) and a **profile**
+(default: `talking_heads`, `text`, `mixed`, `full`), which are resolved to the width, height,
+fps and video bitrate.
+
+**The following environment variables are no longer read. If they are still set in
+your deployment they are silently ignored, and your recordings will be encoded with
+the new defaults instead of your tuned values.**
+
+| Removed variable                        | Replaced by                                                                                                   |
+| --------------------------------------- | ------------------------------------------------------------------------------------------------------------- |
+| `RECORDING_ENCODING_ENABLED`            | Nothing. A default encoding is now always built (see below). **Not** `RECORDING_CUSTOM_ENCODING_ENABLED`, which gates a different feature. |
+| `RECORDING_ENCODING_WIDTH`              | The `width` of the entry selected by `RECORDING_ENCODING_DEFAULT_RESOLUTION` in `RECORDING_ENCODING_AVAILABLE_RESOLUTIONS`. |
+| `RECORDING_ENCODING_HEIGHT`             | The `height` of that same entry.                                                                              |
+| `RECORDING_ENCODING_FRAMERATE`          | The `fps` of the profile selected by `RECORDING_ENCODING_DEFAULT_PROFILE` in `RECORDING_ENCODING_AVAILABLE_PROFILES`. |
+| `RECORDING_ENCODING_VIDEO_BITRATE_KBPS` | That profile's `kbps`.                                                                  |
+
+`RECORDING_ENCODING_AUDIO_BITRATE_KBPS` and `RECORDING_ENCODING_KEY_FRAME_INTERVAL_S`
+are unchanged and keep their values.
+
+#### If you never set `RECORDING_ENCODING_ENABLED=True`
+
+No action is required. The shipped defaults (`RECORDING_ENCODING_DEFAULT_PROFILE=full`,
+`RECORDING_ENCODING_DEFAULT_RESOLUTION=720p`) match LiveKit's built-in
+`H264_720P_30` preset: 1280×720, 30 fps, 3000 kbps H.264 MAIN, 128 kbps AAC.
+
+Note that these values are now sent explicitly as advanced `EncodingOptions`
+rather than relying on LiveKit's preset, so `RECORDING_ENCODING_AUDIO_BITRATE_KBPS`
+and `RECORDING_ENCODING_KEY_FRAME_INTERVAL_S` now apply to every recording. They
+previously applied only when `RECORDING_ENCODING_ENABLED` was `True`.
+
+To keep letting LiveKit pick the encoding instead, set either default to an empty
+value:
+
+```
+RECORDING_ENCODING_DEFAULT_RESOLUTION=
+RECORDING_ENCODING_DEFAULT_PROFILE=
+```
+
+#### If you had tuned `RECORDING_ENCODING_*` values
+
+Translate your old values into a default resolution and a default profile. Declare your own resolution and/or profile. Both maps are read from the
+environment as a single-line Python/JSON dict literal (parsed with
+`ast.literal_eval`, so use double-quoted keys and no trailing commas, and do not
+add outer quotes in `.env`-style files):
+
+```bash
+RECORDING_ENCODING_AVAILABLE_RESOLUTIONS={"540p": {"width": 960, "height": 540}, "720p": {"width": 1280, "height": 720}, "1080p": {"width": 1920, "height": 1080}}
+RECORDING_ENCODING_AVAILABLE_PROFILES={"my_old_profile": {"fps": 15, "kbps": {"540p": 350, "720p": 600, "1080p": 1100}}}
+RECORDING_ENCODING_DEFAULT_RESOLUTION=720p
+RECORDING_ENCODING_DEFAULT_PROFILE=my_old_profile
+```
+
+Two constraints are validated at startup and may raise a `ValueError`:
+
+- every profile in `RECORDING_ENCODING_AVAILABLE_PROFILES` must define a `kbps`
+  entry for **exactly** the keys of `RECORDING_ENCODING_AVAILABLE_RESOLUTIONS`;
+  overriding one of the two maps usually means overriding both;
+- `RECORDING_ENCODING_DEFAULT_RESOLUTION` and `RECORDING_ENCODING_DEFAULT_PROFILE`,
+  when non-empty, must be keys of their respective map.
+
+#### Optional: per-recording encoding
+
+`RECORDING_CUSTOM_ENCODING_ENABLED` (default `False`) toggles whether the
+start-recording API accepts an `encoding` object
+(`{"resolution": "720p", "profile": "talking_heads"}`, `profile` optional) that
+overrides the default for a single recording. It does not enable or disable the
+default encoding, which is built from the two `RECORDING_ENCODING_DEFAULT_*`
+settings either way. Leaving it at `False` preserves the previous behaviour, where
+every recording uses the server-side encoding: requests carrying
+`options.encoding` are rejected with a `400` before the recording is created, so
+nothing is persisted and no egress is started.
+
+Before enabling it:
+
+- clients can only pick keys you declared; there is no way to send a raw width or bitrate
+- as of this implementation, the frontend never sends `encoding`
+- `encoding` is accepted but ignored for `transcript` recordings, whose audio-only
+  egress has no video encoding to configure.
+
+See [docs/features/recording.md](docs/features/recording.md#tuning-recording-encoding)
+for the full setting reference, the shipped profile table and the tuning caveats.
+
 ## v1.30.0
 
 ### Removing S3 storage-event webhooks for recordings

compose.yml

@@ -213,8 +213,6 @@ services:
       - "7880:7880"
       - "7881:7881"
       - "7882:7882/udp"
-      - "3478:3478/udp"
-      - "30000-30100:30000-30100/udp"
     volumes:
       - ./docker/livekit/config/livekit-server.yaml:/config.yaml
     depends_on:

docker/livekit/config/livekit-server.yaml

@@ -8,16 +8,3 @@ webhook:
   api_key: devkey
   urls:
       - http://app-dev:8000/api/v1.0/rooms/webhooks-livekit/
-
-turn:
-  enabled: true
-  domain: turn.127.0.0.1.nip.io
-  udp_port: 3478
-  tls_port: 0
-  external_tls: false
-  relay_range_start: 30000
-  relay_range_end: 30100
-  allow_restricted_peer_cidrs:
-    - 192.168.0.0/16
-    - 172.16.0.0/12
-

env.d/development/common.dist

@@ -69,17 +69,31 @@ SUMMARY_SERVICE_WEBHOOK_API_TOKEN=webhook-password
 RECORDING_DOWNLOAD_BASE_URL=http://localhost:3000/recording
 
 # Recording encoding (LiveKit Egress advanced options).
-# When RECORDING_ENCODING_ENABLED is False (default), LiveKit uses its built-in
+# Encoding is described by a named resolution (width/height) and a named profile
-# H264_720P_30 preset (1280x720, 30fps, 3000 kbps). Enable and tune to reduce
+# (framerate + video bitrate per resolution) instead of raw encoder values. The
-# file size and CPU load on the egress worker.
+# start-recording API accepts a pair per recording, e.g.
-# RECORDING_ENCODING_ENABLED=False
+# options.encoding={"resolution": "720p", "profile": "talking_heads"}; only keys
-# RECORDING_ENCODING_WIDTH=1280
+# declared in the two maps below are accepted, "profile" is optional.
-# RECORDING_ENCODING_HEIGHT=720
+# Both maps are read as a one-line Python dict literal (ast.literal_eval): double
-# RECORDING_ENCODING_FRAMERATE=30
+# quoted keys, no outer quotes, no trailing comma. Every profile must define a
-# RECORDING_ENCODING_VIDEO_BITRATE_KBPS=3000
+# kbps entry for exactly the resolutions of the resolutions map, or startup fails.
+# RECORDING_ENCODING_AVAILABLE_RESOLUTIONS={"540p": {"width": 960, "height": 540}, "720p": {"width": 1280, "height": 720}, "1080p": {"width": 1920, "height": 1080}}
+# RECORDING_ENCODING_AVAILABLE_PROFILES={"talking_heads": {"fps": 15, "kbps": {"540p": 400, "720p": 700, "1080p": 1200}}, "text": {"fps": 15, "kbps": {"540p": 600, "720p": 1000, "1080p": 1800}}, "mixed": {"fps": 20, "kbps": {"540p": 900, "720p": 1500, "1080p": 2500}}, "full": {"fps": 30, "kbps": {"540p": 2000, "720p": 3000, "1080p": 4500}}}
+
+# Defaults for recordings that don't carry an encoding. Must be keys of the maps
+# above. Declared but not yet read by the recording code at this commit.
+# RECORDING_ENCODING_DEFAULT_RESOLUTION=720p
+# RECORDING_ENCODING_DEFAULT_PROFILE=full
+
+# Applied to every resolved encoding, independent of resolution and profile.
 # RECORDING_ENCODING_AUDIO_BITRATE_KBPS=128
 # RECORDING_ENCODING_KEY_FRAME_INTERVAL_S=4.0
 
+# Server-wide encoding used when a recording carries no encoding of its own.
+# Keep False: when True, the worker factory still reads RECORDING_ENCODING_WIDTH,
+# _HEIGHT, _FRAMERATE and _VIDEO_BITRATE_KBPS, which no longer exist.
+# RECORDING_ENCODING_ENABLED=False
+
 # Telephony
 ROOM_TELEPHONY_ENABLED=True
 

src/backend/core/api/serializers.py

@@ -13,7 +13,12 @@ from django.core.exceptions import SuspiciousOperation
 from django.utils.translation import gettext_lazy as _
 
 from django_pydantic_field.rest_framework import SchemaField
-from pydantic import BaseModel, Field, field_serializer
+from pydantic import (
+    BaseModel,
+    Field,
+    field_serializer,
+    field_validator,
+)
 from pydantic import ValidationError as PydanticValidationError
 from rest_framework import serializers
 from rest_framework.exceptions import PermissionDenied
@@ -244,6 +249,49 @@ class BaseValidationOnlySerializer(serializers.Serializer):
         raise NotImplementedError(f"{self.__class__.__name__} is validation-only")
 
 
+class EncodingConfig(BaseModel):
+    """Configuration options for recording encoding.
+
+    The allowed `resolution` and `profile` values are derived at validation time
+    from ``settings.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS`` and
+    ``settings.RECORDING_ENCODING_AVAILABLE_PROFILES``, so adding a resolution or profile
+    to those maps is enough to make it accepted here.
+
+    Attributes:
+        resolution: Target video resolution.
+        profile: Encoding profile to balance quality and CPU usage. When `None`,
+        LiveKit default framerate/bitrate are used for the resolution.
+    """
+
+    resolution: str
+    profile: str | None = None
+    model_config = {"extra": "forbid"}
+
+    @field_validator("resolution")
+    @classmethod
+    def _validate_resolution(cls, value):
+        """Reject resolutions absent from RECORDING_ENCODING_AVAILABLE_RESOLUTIONS."""
+        allowed = set(settings.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS)
+        if value not in allowed:
+            raise ValueError(
+                f"Invalid resolution '{value}'. Choose from {sorted(allowed)}."
+            )
+        return value
+
+    @field_validator("profile")
+    @classmethod
+    def _validate_profile(cls, value):
+        """Reject profiles absent from RECORDING_ENCODING_AVAILABLE_PROFILES."""
+        if value is None:
+            return None
+        allowed = set(settings.RECORDING_ENCODING_AVAILABLE_PROFILES)
+        if value not in allowed:
+            raise ValueError(
+                f"Invalid profile '{value}'. Choose from {sorted(allowed)}."
+            )
+        return value
+
+
 class RecordingOptions(BaseModel):
     """Configuration options for recording.
 
@@ -264,7 +312,7 @@ class RecordingOptions(BaseModel):
     transcribe: bool | None = None
     collect_metadata: bool | None = None
     original_mode: Literal["screen_recording", "transcript"] | None = None
-
+    encoding: EncodingConfig | None = None
     model_config = {"extra": "forbid"}
 
 

src/backend/core/api/viewsets.py

@@ -60,6 +60,7 @@ from core.recording.worker.factories import (
 from core.recording.worker.mediator import (
     WorkerServiceMediator,
 )
+from core.recording.worker.services import resolve_encoding_config
 from core.services.invitation import InvitationService
 from core.services.livekit_events import (
     LiveKitEventsService,
@@ -400,12 +401,20 @@ class RoomViewSet(
         options = serializer.validated_data.get("options")
         room = self.get_object()
 
+        options_data = options.model_dump(exclude_none=True) if options else {}
+        if options is not None and options.encoding is not None:
+            # Persist the resolved encoding (concrete width/height/framerate/
+            # bitrate) alongside the requested resolution/profile for traceability.
+            options_data["encoding"]["resolved"] = resolve_encoding_config(
+                options.encoding
+            )
+
         try:
             with transaction.atomic():
                 recording = models.Recording.objects.create(
                     room=room,
                     mode=mode,
-                    options=options.model_dump(exclude_none=True) if options else {},
+                    options=options_data,
                 )
                 models.RecordingAccess.objects.create(
                     user=self.request.user,

src/backend/core/recording/worker/factories.py

@@ -22,6 +22,37 @@ _RECORDING_AUDIO_CODEC = livekit_api.AudioCodec.AAC
 _RECORDING_AUDIO_FREQUENCY_HZ = 48000
 
 
+def _build_default_encoding_options() -> Optional[Dict[str, Any]]:
+    """Build the server-wide EncodingOptions kwargs, or None to keep LiveKit's preset.
+
+    Operator-tunable values live in Django settings; the default resolution gives
+    width / height, the default profile gives framerate and video bitrate, while
+    codec and frequency are pinned constants. Either default left empty means we
+    use the livekit defaults.
+    """
+
+    resolution = settings.RECORDING_ENCODING_DEFAULT_RESOLUTION
+    profile = settings.RECORDING_ENCODING_DEFAULT_PROFILE
+
+    if not resolution or not profile:
+        return None
+
+    dimensions = settings.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS[resolution]
+    profile_spec = settings.RECORDING_ENCODING_AVAILABLE_PROFILES[profile]
+
+    return {
+        "width": dimensions["width"],
+        "height": dimensions["height"],
+        "framerate": profile_spec["fps"],
+        "video_bitrate": profile_spec["kbps"][resolution],
+        "audio_bitrate": settings.RECORDING_ENCODING_AUDIO_BITRATE_KBPS,
+        "key_frame_interval": settings.RECORDING_ENCODING_KEY_FRAME_INTERVAL_S,
+        "video_codec": _RECORDING_VIDEO_CODEC,
+        "audio_codec": _RECORDING_AUDIO_CODEC,
+        "audio_frequency": _RECORDING_AUDIO_FREQUENCY_HZ,
+    }
+
+
 @dataclass(frozen=True)
 class WorkerServiceConfig:
     """Declare Worker Service common configurations"""
@@ -38,22 +69,14 @@ class WorkerServiceConfig:
 
         logger.debug("Loading WorkerServiceConfig from settings.")
 
-        encoding_options: Optional[Dict[str, Any]] = None
+        # Single source of truth for the EncodingOptions kwargs; the services
-        if settings.RECORDING_ENCODING_ENABLED:
+        # layer only unpacks this dict. Recordings carrying their own encoding
-            # Single source of truth for the EncodingOptions kwargs:
+        # resolve it per request and bypass this default.
-            # operator-tunable values live in Django settings, codec / frequency
+        encoding_options: Optional[Dict[str, Any]] = (
-            # are pinned constants. The services layer only unpacks this dict.
+            _build_default_encoding_options()
-            encoding_options = {
+            if settings.RECORDING_ENCODING_ENABLED
-                "width": settings.RECORDING_ENCODING_WIDTH,
+            else None
-                "height": settings.RECORDING_ENCODING_HEIGHT,
+        )
-                "framerate": settings.RECORDING_ENCODING_FRAMERATE,
-                "video_bitrate": settings.RECORDING_ENCODING_VIDEO_BITRATE_KBPS,
-                "audio_bitrate": settings.RECORDING_ENCODING_AUDIO_BITRATE_KBPS,
-                "key_frame_interval": settings.RECORDING_ENCODING_KEY_FRAME_INTERVAL_S,
-                "video_codec": _RECORDING_VIDEO_CODEC,
-                "audio_codec": _RECORDING_AUDIO_CODEC,
-                "audio_frequency": _RECORDING_AUDIO_FREQUENCY_HZ,
-            }
 
         return cls(
             output_folder=settings.RECORDING_OUTPUT_FOLDER,
@@ -78,7 +101,12 @@ class WorkerService(Protocol):
     def __init__(self, config: WorkerServiceConfig):
         """Initialize the service with the given configuration."""
 
-    def start(self, room_id: str, recording_id: str) -> str:
+    def start(
+        self,
+        room_id: str,
+        recording_id: str,
+        encoding_options: Optional[Dict[str, Any]] = None,
+    ) -> str:
         """Start a recording for a specified room."""
 
     def stop(self, worker_id: str) -> str:

src/backend/core/recording/worker/mediator.py

@@ -51,8 +51,11 @@ class WorkerServiceMediator:
             raise RecordingStartError()
 
         room_name = str(recording.room.id)
+        encoding_options = (recording.options.get("encoding") or {}).get("resolved")
         try:
-            worker_id = self._worker_service.start(room_name, recording.id)
+            worker_id = self._worker_service.start(
+                room_name, recording.id, encoding_options=encoding_options
+            )
         except (WorkerRequestError, WorkerConnectionError, WorkerResponseError) as e:
             logger.exception(
                 "Failed to start recording for room %s: %s", recording.room.slug, e

src/backend/core/recording/worker/services.py

@@ -2,6 +2,8 @@
 
 # pylint: disable=no-member
 
+from django.conf import settings
+
 from asgiref.sync import async_to_sync
 from livekit import api as livekit_api
 
@@ -11,6 +13,41 @@ from .exceptions import WorkerConnectionError, WorkerResponseError
 from .factories import WorkerServiceConfig
 
 
+def resolve_encoding_config(encoding_config):
+    """Resolve a per-recording EncodingConfig to concrete encoding fields.
+
+    Returns a JSON-serializable dict of the LiveKit ``EncodingOptions`` kwargs
+    derived from the request's resolution / profile, or None when no
+    encoding_config is provided. This allows to derive width, height, fps, and
+    bitrate from (resolution, profile).
+
+    Only the fields that can actually be resolved are included: width/height
+    require a resolution, framerate/video_bitrate require both a resolution and a
+    profile.
+    """
+    if encoding_config is None:
+        return None
+
+    resolution = encoding_config.resolution
+    profile = encoding_config.profile
+
+    resolved = {
+        "key_frame_interval": settings.RECORDING_ENCODING_KEY_FRAME_INTERVAL_S,
+    }
+
+    if resolution:
+        dimensions = settings.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS[resolution]
+        resolved["width"] = dimensions["width"]
+        resolved["height"] = dimensions["height"]
+
+    if resolution and profile:
+        profile_spec = settings.RECORDING_ENCODING_AVAILABLE_PROFILES[profile]
+        resolved["framerate"] = profile_spec["fps"]
+        resolved["video_bitrate"] = profile_spec["kbps"][resolution]
+
+    return resolved
+
+
 class BaseEgressService:
     """Base egress defining common methods to manage and interact with LiveKit egress processes."""
 
@@ -76,7 +113,7 @@ class BaseEgressService:
 
         return "FAILED_TO_STOP"
 
-    def start(self, room_name, recording_id):
+    def start(self, room_name, recording_id, encoding_options=None):
         """Start the egress process for a recording (not implemented in the base class).
         Each derived class must implement this method, providing the necessary parameters for
         its specific egress type (e.g. audio_only, streaming output).
@@ -99,13 +136,24 @@ class BaseEgressService:
 
         return livekit_api.EncodingOptions(**opts)
 
+    def _resolve_encoding_options(self, encoding_options):
+        """Build LiveKit EncodingOptions from a resolved per-recording dict, or None.
+
+        ``encoding_options`` is the dict persisted by the API in
+        ``recording.options["encoding"]["resolved"]``.
+        """
+        if not encoding_options:
+            return None
+
+        return livekit_api.EncodingOptions(**encoding_options)
+
 
 class VideoCompositeEgressService(BaseEgressService):
     """Record multiple participant video and audio tracks into a single output '.mp4' file."""
 
     hrid = "video-recording-composite-livekit-egress"
 
-    def start(self, room_name, recording_id):
+    def start(self, room_name, recording_id, encoding_options=None):
         """Start the video composite egress process for a recording."""
 
         # Save room's recording as a mp4 video file.
@@ -126,7 +174,10 @@ class VideoCompositeEgressService(BaseEgressService):
             "layout": "speaker-light",
         }
 
-        advanced = self._build_encoding_options()
+        advanced = (
+            self._resolve_encoding_options(encoding_options)
+            or self._build_encoding_options()
+        )
         if advanced is not None:
             request_kwargs["advanced"] = advanced
 
@@ -145,8 +196,13 @@ class AudioCompositeEgressService(BaseEgressService):
 
     hrid = "audio-recording-composite-livekit-egress"
 
-    def start(self, room_name, recording_id):
+    def start(self, room_name, recording_id, encoding_options=None):
-        """Start the audio composite egress process for a recording."""
+        """Start the audio composite egress process for a recording.
+
+        ``encoding_options`` is accepted for signature compatibility with the
+        WorkerService protocol but ignored: audio-only egress has no
+        encoding to configure.
+        """
 
         # Save room's recording as an ogg audio file.
         file_type = livekit_api.EncodedFileType.OGG

src/backend/core/tests/recording/worker/test_encoding_resolver.py

@@ -0,0 +1,109 @@
+"""Tests for the per-recording encoding resolution in BaseEgressService."""
+
+# pylint: disable=protected-access,redefined-outer-name,unused-argument
+
+from unittest.mock import Mock
+
+from django.conf import settings
+
+import pytest
+from pydantic import ValidationError as PydanticValidationError
+
+from core.api.serializers import EncodingConfig
+from core.recording.worker.services import (
+    VideoCompositeEgressService,
+    resolve_encoding_config,
+)
+
+
+def make_config():
+    """Build a minimal WorkerServiceConfig-like mock for service instantiation."""
+    config = Mock()
+    config.bucket_args = {
+        "endpoint": "https://s3.test.com",
+        "access_key": "test_key",
+        "secret": "test_secret",
+        "region": "test-region",
+        "bucket": "test-bucket",
+        "force_path_style": True,
+    }
+    config.encoding_options = None
+    return config
+
+
+@pytest.fixture
+def service():
+    """Return a VideoCompositeEgressService with mocked handle_request."""
+    svc = VideoCompositeEgressService(make_config())
+    svc._handle_request = Mock()
+    return svc
+
+
+# --- resolve_encoding_config ---
+
+
+def test_resolve_config_returns_none_without_config():
+    """Resolver should return None when no encoding config is provided."""
+    assert resolve_encoding_config(None) is None
+
+
+def test_resolve_config_without_profile_omits_profile_fields():
+    """A resolution-only config should resolve dimensions but no framerate/bitrate."""
+    resolved = resolve_encoding_config(EncodingConfig(resolution="720p"))
+
+    assert resolved == {
+        "key_frame_interval": settings.RECORDING_ENCODING_KEY_FRAME_INTERVAL_S,
+        "width": 1280,
+        "height": 720,
+    }
+
+
+def test_encoding_config_requires_resolution():
+    """A profile-only or empty encoding config should be rejected at validation."""
+    with pytest.raises(PydanticValidationError):
+        EncodingConfig(profile="mixed")
+    with pytest.raises(PydanticValidationError):
+        EncodingConfig()
+
+
+# --- _resolve_encoding_options ---
+
+
+@pytest.mark.parametrize("encoding_options", [None, {}])
+def test_resolve_options_returns_none_when_empty(service, encoding_options):
+    """Resolver should return None when the resolved dict is empty or missing."""
+    assert service._resolve_encoding_options(encoding_options) is None
+
+
+@pytest.mark.parametrize(
+    "resolution",
+    list(settings.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS),
+)
+@pytest.mark.parametrize(
+    "profile",
+    list(settings.RECORDING_ENCODING_AVAILABLE_PROFILES),
+)
+def test_resolve_profile_resolution_combinations(service, profile, resolution):
+    """Every (profile, resolution) pair should resolve to the values from settings."""
+    dimensions = settings.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS[resolution]
+    profile_spec = settings.RECORDING_ENCODING_AVAILABLE_PROFILES[profile]
+
+    resolved = resolve_encoding_config(
+        EncodingConfig(resolution=resolution, profile=profile)
+    )
+    result = service._resolve_encoding_options(resolved)
+
+    assert result.width == dimensions["width"]
+    assert result.height == dimensions["height"]
+    assert result.framerate == profile_spec["fps"]
+    assert result.video_bitrate == profile_spec["kbps"][resolution]
+
+
+def test_resolve_options_none_profile_uses_livekit_defaults(service):
+    """Missing profile should pass 0 fps/bitrate (LiveKit protobuf default)."""
+    resolved = resolve_encoding_config(EncodingConfig(resolution="720p"))
+    result = service._resolve_encoding_options(resolved)
+    assert result.width == 1280
+    assert result.height == 720
+    assert result.framerate == 0
+    assert result.video_bitrate == 0

src/backend/core/tests/recording/worker/test_factories.py

@@ -85,18 +85,22 @@ def test_config_immutability(default_config):
     AWS_S3_REGION_NAME="test-region",
     AWS_STORAGE_BUCKET_NAME="test-bucket",
     RECORDING_ENCODING_ENABLED=True,
-    RECORDING_ENCODING_WIDTH=1280,
+    RECORDING_ENCODING_AVAILABLE_RESOLUTIONS={
-    RECORDING_ENCODING_HEIGHT=720,
+        "720p": {"width": 1280, "height": 720},
-    RECORDING_ENCODING_FRAMERATE=15,
+    },
-    RECORDING_ENCODING_VIDEO_BITRATE_KBPS=600,
+    RECORDING_ENCODING_AVAILABLE_PROFILES={
+        "talking_heads": {"fps": 15, "kbps": {"720p": 600}},
+    },
+    RECORDING_ENCODING_DEFAULT_RESOLUTION="720p",
+    RECORDING_ENCODING_DEFAULT_PROFILE="talking_heads",
     RECORDING_ENCODING_AUDIO_BITRATE_KBPS=64,
     RECORDING_ENCODING_KEY_FRAME_INTERVAL_S=10.0,
 )
 def test_config_encoding_options_enabled():
     """When RECORDING_ENCODING_ENABLED is True, encoding options are populated.
 
-    The dict mixes operator-tunable values from settings with pinned codec /
+    The dict mixes values resolved from the default resolution / profile with
-    frequency constants, so the services layer can simply unpack it.
+    pinned codec / frequency constants, so the services layer can simply unpack it.
     """
 
     WorkerServiceConfig.from_settings.cache_clear()
@@ -115,6 +119,27 @@ def test_config_encoding_options_enabled():
     }
 
 
+@override_settings(
+    RECORDING_OUTPUT_FOLDER="/test/output",
+    LIVEKIT_CONFIGURATION={"server": "test.example.com"},
+    AWS_S3_ENDPOINT_URL="https://s3.test.com",
+    AWS_S3_ACCESS_KEY_ID="test_key",
+    AWS_S3_SECRET_ACCESS_KEY="test_secret",
+    AWS_S3_REGION_NAME="test-region",
+    AWS_STORAGE_BUCKET_NAME="test-bucket",
+    RECORDING_ENCODING_ENABLED=True,
+    RECORDING_ENCODING_DEFAULT_RESOLUTION="",
+    RECORDING_ENCODING_DEFAULT_PROFILE="",
+)
+def test_config_encoding_options_without_defaults():
+    """An empty default resolution or profile leaves the encoding to LiveKit."""
+
+    WorkerServiceConfig.from_settings.cache_clear()
+    config = WorkerServiceConfig.from_settings()
+
+    assert config.encoding_options is None
+
+
 @override_settings(
     RECORDING_OUTPUT_FOLDER="/test/output",
     LIVEKIT_CONFIGURATION={"server": "test.example.com"},

src/backend/core/tests/recording/worker/test_mediator.py

@@ -50,7 +50,7 @@ def test_start_recording_success(mock_update_metadata, mediator, mock_worker_ser
     # Verify worker service call
     expected_room_name = str(mock_recording.room.id)
     mock_worker_service.start.assert_called_once_with(
-        expected_room_name, mock_recording.id
+        expected_room_name, mock_recording.id, encoding_options=None
     )
 
     # Verify recording updates
@@ -64,6 +64,38 @@ def test_start_recording_success(mock_update_metadata, mediator, mock_worker_ser
     )
 
 
+@mock.patch("core.utils.update_room_metadata")
+def test_start_recording_passes_resolved_encoding(
+    mock_update_room_metadata, mediator, mock_worker_service
+):
+    """The resolved encoding persisted in recording.options reaches the worker."""
+    mock_worker_service.start.return_value = "test-worker-123"
+
+    resolved = {
+        "key_frame_interval": 4.0,
+        "width": 1280,
+        "height": 720,
+        "framerate": 15,
+        "video_bitrate": 700,
+    }
+    mock_recording = RecordingFactory(
+        status=RecordingStatusChoices.INITIATED,
+        worker_id=None,
+        options={
+            "encoding": {
+                "resolution": "720p",
+                "profile": "talking_heads",
+                "resolved": resolved,
+            }
+        },
+    )
+    mediator.start(mock_recording)
+
+    mock_worker_service.start.assert_called_once_with(
+        str(mock_recording.room.id), mock_recording.id, encoding_options=resolved
+    )
+
+
 @pytest.mark.parametrize(
     "error_class", [WorkerRequestError, WorkerConnectionError, WorkerResponseError]
 )

src/backend/core/tests/rooms/test_api_rooms_start_recording.py

@@ -470,6 +470,160 @@ def test_start_recording_options_unknown_field_rejected(settings):
     assert response.status_code == 400
 
 
+def test_start_recording_options_encoding_valid(
+    settings, mock_worker_service_factory, mock_worker_manager
+):
+    """Should accept a valid encoding configuration."""
+    settings.RECORDING_ENABLE = True
+    room = RoomFactory()
+    user = UserFactory()
+    room.accesses.create(user=user, role="owner")
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.post(
+        f"/api/v1.0/rooms/{room.id}/start-recording/",
+        {
+            "mode": "screen_recording",
+            "options": {"encoding": {"resolution": "720p", "profile": "talking_heads"}},
+        },
+        format="json",
+    )
+
+    assert response.status_code == 201
+
+
+def test_start_recording_persists_resolved_encoding(
+    settings, mock_worker_service_factory, mock_worker_manager
+):
+    """The resolved encoding should be persisted in recording.options alongside
+    the requested resolution/profile for traceability."""
+    settings.RECORDING_ENABLE = True
+    room = RoomFactory()
+    user = UserFactory()
+    room.accesses.create(user=user, role="owner")
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.post(
+        f"/api/v1.0/rooms/{room.id}/start-recording/",
+        {
+            "mode": "screen_recording",
+            "options": {"encoding": {"resolution": "720p", "profile": "talking_heads"}},
+        },
+        format="json",
+    )
+
+    assert response.status_code == 201
+    recording = Recording.objects.get(room=room)
+    assert recording.options["encoding"] == {
+        "resolution": "720p",
+        "profile": "talking_heads",
+        "resolved": {
+            "key_frame_interval": settings.RECORDING_ENCODING_KEY_FRAME_INTERVAL_S,
+            "width": 1280,
+            "height": 720,
+            "framerate": 15,
+            "video_bitrate": 700,
+        },
+    }
+
+
+def test_start_recording_forwards_resolved_encoding_to_worker(
+    settings, mock_worker_service, mock_worker_service_factory
+):
+    """The resolved encoding should passed on to the worker."""
+    settings.RECORDING_ENABLE = True
+    room = RoomFactory()
+    user = UserFactory()
+    room.accesses.create(user=user, role="owner")
+    client = APIClient()
+    client.force_login(user)
+
+    mock_worker_service.start.return_value = "egress-123"
+
+    with mock.patch("core.utils.update_room_metadata"):
+        response = client.post(
+            f"/api/v1.0/rooms/{room.id}/start-recording/",
+            {
+                "mode": "screen_recording",
+                "options": {
+                    "encoding": {"resolution": "720p", "profile": "talking_heads"}
+                },
+            },
+            format="json",
+        )
+
+    assert response.status_code == 201
+    recording = Recording.objects.get(room=room)
+    mock_worker_service.start.assert_called_once_with(
+        str(room.id),
+        recording.id,
+        encoding_options=recording.options["encoding"]["resolved"],
+    )
+
+
+def test_start_recording_options_encoding_invalid_resolution(settings):
+    """Should reject invalid encoding resolution values."""
+    settings.RECORDING_ENABLE = True
+    room = RoomFactory()
+    user = UserFactory()
+    room.accesses.create(user=user, role="owner")
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.post(
+        f"/api/v1.0/rooms/{room.id}/start-recording/",
+        {"mode": "screen_recording", "options": {"encoding": {"resolution": "4K"}}},
+        format="json",
+    )
+
+    assert response.status_code == 400
+
+
+def test_start_recording_options_encoding_unknown_key_rejected(settings):
+    """Should reject unknown keys in encoding configuration."""
+    settings.RECORDING_ENABLE = True
+    room = RoomFactory()
+    user = UserFactory()
+    room.accesses.create(user=user, role="owner")
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.post(
+        f"/api/v1.0/rooms/{room.id}/start-recording/",
+        {
+            "mode": "screen_recording",
+            "options": {"encoding": {"bitrate": 9000}},
+        },
+        format="json",
+    )
+
+    assert response.status_code == 400
+
+
+def test_start_recording_options_without_encoding_unchanged(
+    settings, mock_worker_service_factory, mock_worker_manager
+):
+    """Requests without encoding should keep existing options behavior."""
+    settings.RECORDING_ENABLE = True
+    room = RoomFactory()
+    user = UserFactory()
+    room.accesses.create(user=user, role="owner")
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.post(
+        f"/api/v1.0/rooms/{room.id}/start-recording/",
+        {"mode": "screen_recording", "options": {"language": "fr"}},
+        format="json",
+    )
+
+    assert response.status_code == 201
+    recording = Recording.objects.get(room=room)
+    assert recording.options == {"language": "fr"}
+
+
 @pytest.mark.parametrize("value", ["foo", 12])
 def test_start_recording_options_invalid_transcribe_type(settings, value):
     """Should reject non-boolean transcribe values."""

src/backend/meet/settings.py

@@ -747,26 +747,63 @@ class Base(Configuration):
     # recordings), whose request never carries advanced EncodingOptions.
     # When disabled, LiveKit falls back to its built-in H264_720P_30 preset
     # (1280x720, 30 fps, 3000 kbps H.264 MAIN video, 128 kbps AAC audio).
-    # When enabled, the values below are passed to LiveKit as EncodingOptions
+    # When enabled, the encoding parameters are resolved from the default profile
-    # (advanced) and replace the preset. Lowering framerate and bitrate reduces
+    # and resolution below and passed to LiveKit as EncodingOptions (advanced),
-    # output file size and CPU load on the egress worker.
+    # replacing the preset. Lowering framerate and bitrate reduces output file
+    # size and CPU load on the egress worker.
     RECORDING_ENCODING_ENABLED = values.BooleanValue(
         False, environ_name="RECORDING_ENCODING_ENABLED", environ_prefix=None
     )
-    RECORDING_ENCODING_WIDTH = values.PositiveIntegerValue(
+
-        1280, environ_name="RECORDING_ENCODING_WIDTH", environ_prefix=None
+    # Map resolution name -> {"width": ..., "height": ...} in pixels.
-    )
+    RECORDING_ENCODING_AVAILABLE_RESOLUTIONS = values.DictValue(
-    RECORDING_ENCODING_HEIGHT = values.PositiveIntegerValue(
+        {
-        720, environ_name="RECORDING_ENCODING_HEIGHT", environ_prefix=None
+            "540p": {"width": 960, "height": 540},
-    )
+            "720p": {"width": 1280, "height": 720},
-    RECORDING_ENCODING_FRAMERATE = values.PositiveIntegerValue(
+            "1080p": {"width": 1920, "height": 1080},
-        30, environ_name="RECORDING_ENCODING_FRAMERATE", environ_prefix=None
+        },
-    )
+        environ_name="RECORDING_ENCODING_AVAILABLE_RESOLUTIONS",
-    RECORDING_ENCODING_VIDEO_BITRATE_KBPS = values.PositiveIntegerValue(
-        3000,
-        environ_name="RECORDING_ENCODING_VIDEO_BITRATE_KBPS",
         environ_prefix=None,
     )
+
+    # Bitrate scales with resolution so quality stays consistent across sizes.
+    RECORDING_ENCODING_AVAILABLE_PROFILES = values.DictValue(
+        {
+            "talking_heads": {
+                "fps": 15,
+                "kbps": {"540p": 400, "720p": 700, "1080p": 1200},
+            },
+            "text": {
+                "fps": 15,
+                "kbps": {"540p": 600, "720p": 1000, "1080p": 1800},
+            },
+            "mixed": {
+                "fps": 20,
+                "kbps": {"540p": 900, "720p": 1500, "1080p": 2500},
+            },
+            "full": {
+                "fps": 30,
+                "kbps": {"540p": 2000, "720p": 3000, "1080p": 4500},
+            },
+        },
+        environ_name="RECORDING_ENCODING_AVAILABLE_PROFILES",
+        environ_prefix=None,
+    )
+
+    # Defaults used when no profile/resolution is specified per recording.
+    # Must be keys of the two dicts above (validated at startup).
+    RECORDING_ENCODING_DEFAULT_PROFILE = values.Value(
+        "full",
+        environ_name="RECORDING_ENCODING_DEFAULT_PROFILE",
+        environ_prefix=None,
+    )
+    RECORDING_ENCODING_DEFAULT_RESOLUTION = values.Value(
+        "720p",
+        environ_name="RECORDING_ENCODING_DEFAULT_RESOLUTION",
+        environ_prefix=None,
+    )
+
+    # Settings independent of profile/resolution.
     RECORDING_ENCODING_AUDIO_BITRATE_KBPS = values.PositiveIntegerValue(
         128,
         environ_name="RECORDING_ENCODING_AUDIO_BITRATE_KBPS",
@@ -781,6 +818,7 @@ class Base(Configuration):
     SUMMARY_SERVICE_VERSION = values.PositiveIntegerValue(
         1, environ_name="SUMMARY_SERVICE_VERSION", environ_prefix=None
     )
+
     SUMMARY_SERVICE_ENDPOINT = values.Value(
         None, environ_name="SUMMARY_SERVICE_ENDPOINT", environ_prefix=None
     )
@@ -1169,6 +1207,49 @@ class Base(Configuration):
             },
         }
 
+    @classmethod
+    def _check_recording_encoding_maps(cls):
+        """Ensure the per-recording encoding maps are mutually consistent.
+
+        Every profile in RECORDING_ENCODING_AVAILABLE_PROFILES must declare an fps and
+        a bitrate for each resolution declared in RECORDING_ENCODING_AVAILABLE_RESOLUTIONS,
+        and each non-empty default must name an entry of its map.
+        """
+        # DictValue resolves to a dict at runtime; pylint sees the descriptor.
+        # pylint: disable=no-member
+        resolutions = set(cls.RECORDING_ENCODING_AVAILABLE_RESOLUTIONS)
+        for profile, spec in cls.RECORDING_ENCODING_AVAILABLE_PROFILES.items():
+            if "fps" not in spec or "kbps" not in spec:
+                raise ValueError(
+                    f"Profile '{profile}' in RECORDING_ENCODING_AVAILABLE_PROFILES must "
+                    "define both 'fps' and 'kbps'."
+                )
+
+            profile_resolutions = set(spec["kbps"])
+            if profile_resolutions != resolutions:
+                raise ValueError(
+                    f"Profile '{profile}' in RECORDING_ENCODING_AVAILABLE_PROFILES must "
+                    "define a bitrate for exactly the resolutions in "
+                    "RECORDING_ENCODING_AVAILABLE_RESOLUTIONS, mismatch on: "
+                    f"{resolutions ^ profile_resolutions}"
+                )
+
+        default_resolution = cls.RECORDING_ENCODING_DEFAULT_RESOLUTION
+        if default_resolution and default_resolution not in resolutions:
+            raise ValueError(
+                f"RECORDING_ENCODING_DEFAULT_RESOLUTION '{default_resolution}' is not a "
+                "key of RECORDING_ENCODING_AVAILABLE_RESOLUTIONS, choose from "
+                f"{sorted(resolutions)}."
+            )
+
+        profiles = set(cls.RECORDING_ENCODING_AVAILABLE_PROFILES)
+        default_profile = cls.RECORDING_ENCODING_DEFAULT_PROFILE
+        if default_profile and default_profile not in profiles:
+            raise ValueError(
+                f"RECORDING_ENCODING_DEFAULT_PROFILE '{default_profile}' is not a key of "
+                f"RECORDING_ENCODING_AVAILABLE_PROFILES, choose from {sorted(profiles)}."
+            )
+
     @classmethod
     def post_setup(cls):
         """Post setup configuration.
@@ -1182,6 +1263,8 @@ class Base(Configuration):
                 "FILE_UPLOAD_TMP_PATH cannot be the same as FILE_UPLOAD_PATH"
             )
 
+        cls._check_recording_encoding_maps()
+
         if (
             cls.SUMMARY_SERVICE_VERSION == 1
             and cls.SUMMARY_SERVICE_ENDPOINT is not None

src/frontend/src/features/devtools/MeetDevtools.tsx

@@ -1,595 +0,0 @@
-import { CSSProperties, useState } from 'react'
-import { useConnectionState, useRoomContext } from '@livekit/components-react'
-import { ConnectionState } from 'livekit-client'
-import { StatsSnapshot, TrackRow, useWebRTCStats } from './useWebRTCStats'
-import { readRoomConfig } from './roomConfig'
-import {
-  forceTransport,
-  releaseForcedTransport,
-  Scenario,
-  SCENARIOS,
-  setDownlinkCap,
-  setUplinkCap,
-  stepBitrate,
-  TransportMode,
-  transportModeFromRoute,
-} from './simulation'
-
-const SANS =
-  "-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif"
-const MONO = 'ui-monospace, SFMono-Regular, Menlo, Consolas, monospace'
-
-const COLOR = {
-  text: '#e8e8e8',
-  muted: '#9a9a9a',
-  faint: '#6f6f6f',
-  hairline: '#2c2d31',
-  border: '#3d3e44',
-  surface: '#1b1c1e',
-  chartBg: '#141517',
-  down: '#f6821f',
-  up: '#5a9cf8',
-  ok: '#10b981',
-  bad: '#f05a4a',
-  busy: '#e5a13c',
-}
-
-const stateColor = (state: ConnectionState): string => {
-  switch (state) {
-    case ConnectionState.Connected:
-      return COLOR.ok
-    case ConnectionState.Reconnecting:
-    case ConnectionState.SignalReconnecting:
-      return COLOR.busy
-    case ConnectionState.Connecting:
-      return COLOR.up
-    case ConnectionState.Disconnected:
-      return COLOR.bad
-  }
-}
-
-const styles: Record<string, CSSProperties> = {
-  toggle: {
-    position: 'fixed',
-    bottom: 12,
-    right: 12,
-    zIndex: 9999,
-    fontFamily: SANS,
-    fontSize: 12,
-    lineHeight: 1,
-    padding: '8px 12px',
-    borderRadius: 999,
-    borderWidth: 1,
-    borderStyle: 'solid',
-    borderColor: COLOR.border,
-    background: COLOR.surface,
-    color: COLOR.text,
-    cursor: 'pointer',
-    boxShadow: '0 2px 10px #0006',
-  },
-  panel: {
-    position: 'fixed',
-    bottom: 12,
-    right: 12,
-    zIndex: 9999,
-    width: 460,
-    maxWidth: 'calc(100vw - 24px)',
-    maxHeight: 'calc(100vh - 24px)',
-    overflowY: 'auto',
-    fontFamily: SANS,
-    fontSize: 11,
-    lineHeight: 1.5,
-    color: COLOR.text,
-    background: COLOR.surface,
-    borderWidth: 1,
-    borderStyle: 'solid',
-    borderColor: COLOR.border,
-    borderRadius: 10,
-    padding: 14,
-    boxShadow: '0 10px 34px #00000080',
-  },
-  sectionTitle: {
-    margin: '14px 0 5px',
-    color: COLOR.faint,
-    textTransform: 'uppercase',
-    letterSpacing: 1.2,
-    fontSize: 9,
-    fontWeight: 600,
-    display: 'flex',
-    justifyContent: 'space-between',
-  },
-  metricsLine: {
-    display: 'flex',
-    alignItems: 'center',
-    gap: 16,
-    margin: '0 0 10px',
-    paddingBottom: 10,
-    borderBottom: `1px solid ${COLOR.hairline}`,
-    fontVariantNumeric: 'tabular-nums',
-  },
-  legend: {
-    display: 'flex',
-    gap: 12,
-    marginTop: 3,
-    color: COLOR.faint,
-    fontSize: 10,
-  },
-  list: {
-    display: 'flex',
-    flexDirection: 'column',
-    maxHeight: '400px',
-    overflowY: 'auto',
-  },
-  configList: { display: 'flex', flexWrap: 'wrap' },
-  configRow: {
-    display: 'flex',
-    gap: 6,
-    flex: '0 0 50%',
-    minWidth: 0,
-    boxSizing: 'border-box',
-    padding: '1px 8px 1px 0',
-  },
-  configLabel: {
-    color: COLOR.muted,
-    flex: '0 0 45%',
-    whiteSpace: 'nowrap',
-    overflow: 'hidden',
-    textOverflow: 'ellipsis',
-  },
-  configValue: {
-    flex: 1,
-    minWidth: 0,
-    whiteSpace: 'nowrap',
-    overflow: 'hidden',
-    textOverflow: 'ellipsis',
-  },
-  trackRow: {
-    display: 'flex',
-    gap: 8,
-    padding: '3px 0',
-    borderBottom: `1px solid ${COLOR.hairline}`,
-    alignItems: 'baseline',
-  },
-  trackLabel: {
-    flex: '0 0 34%',
-    whiteSpace: 'nowrap',
-    overflow: 'hidden',
-    textOverflow: 'ellipsis',
-  },
-  trackCodec: {
-    flex: '0 0 11%',
-    fontFamily: MONO,
-    fontSize: 10,
-    color: COLOR.muted,
-  },
-  trackKbps: {
-    flex: '0 0 9%',
-    textAlign: 'right',
-    fontVariantNumeric: 'tabular-nums',
-  },
-  trackDetail: {
-    flex: 1,
-    minWidth: 0,
-    whiteSpace: 'nowrap',
-    overflow: 'hidden',
-    textOverflow: 'ellipsis',
-  },
-  mono: { fontFamily: MONO, fontSize: 10, color: COLOR.muted },
-  button: {
-    fontFamily: SANS,
-    fontSize: 11,
-    padding: '3px 9px',
-    borderRadius: 5,
-    borderWidth: 1,
-    borderStyle: 'solid',
-    borderColor: COLOR.border,
-    background: '#232428',
-    color: COLOR.text,
-    cursor: 'pointer',
-  },
-  buttonActive: { borderColor: COLOR.down, color: COLOR.down },
-  buttonDisabled: { color: COLOR.faint, cursor: 'not-allowed' },
-  row: { display: 'flex', alignItems: 'center', gap: 6, flexWrap: 'wrap' },
-  stepperValue: {
-    minWidth: 92,
-    textAlign: 'center',
-    borderWidth: 1,
-    borderStyle: 'solid',
-    borderColor: COLOR.hairline,
-    borderRadius: 4,
-    padding: '2px 6px',
-    background: COLOR.chartBg,
-    fontVariantNumeric: 'tabular-nums',
-  },
-  close: {
-    background: 'none',
-    border: 'none',
-    color: COLOR.faint,
-    cursor: 'pointer',
-    fontSize: 14,
-  },
-}
-
-const Sparkline = ({ history }: { history: StatsSnapshot[] }) => {
-  const width = 430
-  const height = 54
-  const max = Math.max(...history.map((s) => Math.max(s.upKbps, s.downKbps)), 1)
-  const points = (pick: (s: StatsSnapshot) => number) =>
-    history
-      .map(
-        (s, i) =>
-          `${((i / Math.max(history.length - 1, 1)) * width).toFixed(1)},${(
-            height -
-            (pick(s) / max) * (height - 6) -
-            3
-          ).toFixed(1)}`
-      )
-      .join(' ')
-  return (
-    <>
-      <svg
-        width={width}
-        height={height}
-        role="img"
-        aria-label="Bandwidth over the last minute"
-        style={{
-          display: 'block',
-          background: COLOR.chartBg,
-          borderRadius: 6,
-          border: `1px solid ${COLOR.hairline}`,
-        }}
-      >
-        {history.length >= 2 && (
-          <>
-            <polyline
-              points={points((s) => s.downKbps)}
-              fill="none"
-              stroke={COLOR.down}
-              strokeWidth="1.5"
-            />
-            <polyline
-              points={points((s) => s.upKbps)}
-              fill="none"
-              stroke={COLOR.up}
-              strokeWidth="1.5"
-            />
-          </>
-        )}
-      </svg>
-      {/* Legend outside the plot: text over the lines was unreadable. */}
-      <div style={styles.legend}>
-        <span>
-          <span style={{ color: COLOR.down }}>●</span> down
-        </span>
-        <span>
-          <span style={{ color: COLOR.up }}>●</span> up
-        </span>
-        <span>last 60s · max {Math.round(max)} kbps</span>
-      </div>
-    </>
-  )
-}
-
-const CapStepper = ({
-  label,
-  hint,
-  valueKbps,
-  onChange,
-}: {
-  label: string
-  hint: string
-  valueKbps: number | null
-  onChange: (kbps: number | null) => void
-}) => (
-  <div style={styles.row}>
-    <span style={{ flex: '0 0 70px' }}>{label}</span>
-    <button
-      type="button"
-      style={styles.button}
-      aria-label={`Decrease ${label} bandwidth`}
-      onClick={() => onChange(stepBitrate(valueKbps, 'decrease'))}
-    >
-      −
-    </button>
-    <span
-      style={{
-        ...styles.stepperValue,
-        ...(valueKbps !== null ? { color: COLOR.down } : {}),
-      }}
-    >
-      {valueKbps === null ? 'unlimited' : `≤ ${valueKbps} kbps`}
-    </span>
-    <button
-      type="button"
-      style={styles.button}
-      aria-label={`Increase ${label} bandwidth`}
-      onClick={() => onChange(stepBitrate(valueKbps, 'increase'))}
-    >
-      +
-    </button>
-    <span style={styles.mono}>{hint}</span>
-  </div>
-)
-
-const TrackList = ({ title, rows }: { title: string; rows: TrackRow[] }) => (
-  <>
-    <div style={styles.sectionTitle}>
-      <span>
-        {title} ({rows.length})
-      </span>
-      <span>
-        {Math.round(rows.reduce((sum, t) => sum + t.kbps, 0))} kbps media
-      </span>
-    </div>
-    <div style={styles.list}>
-      {rows.map((track) => (
-        <div key={track.key} style={styles.trackRow}>
-          <span style={styles.trackLabel}>{track.label}</span>
-          <span style={styles.trackCodec}>{track.codec ?? '–'}</span>
-          <span style={styles.trackKbps}>{Math.round(track.kbps)}</span>
-          <span style={styles.trackDetail}>
-            {[
-              track.res,
-              track.fps !== undefined && `${Math.round(track.fps)}fps`,
-            ]
-              .filter(Boolean)
-              .join(' · ')}
-          </span>
-        </div>
-      ))}
-      {rows.length === 0 && <span style={{ color: COLOR.faint }}>none</span>}
-    </div>
-  </>
-)
-
-const MeetDevtools = () => {
-  const room = useRoomContext()
-  const connState = useConnectionState(room)
-  const [open, setOpen] = useState(false)
-  const [firedScenario, setFiredScenario] = useState<string>()
-  const [uplinkCap, setUplinkCapState] = useState<number | null>(null)
-  const [downlinkCap, setDownlinkCapState] = useState<number | null>(null)
-  const { snapshot, history } = useWebRTCStats(room, open)
-
-  const transportMode: TransportMode = transportModeFromRoute(snapshot?.route)
-
-  const fireScenario = (scenario: Scenario) => {
-    setFiredScenario(scenario.id)
-    scenario.run(room).catch((e) => {
-      console.warn('[MeetDevtools] simulateScenario failed', e)
-    })
-    window.setTimeout(
-      () =>
-        setFiredScenario((current) =>
-          current === scenario.id ? undefined : current
-        ),
-      1200
-    )
-  }
-
-  if (!open) {
-    return (
-      <button
-        type="button"
-        style={styles.toggle}
-        onClick={() => setOpen(true)}
-        aria-label="Open WebRTC devtools"
-      >
-        <span style={{ color: stateColor(connState) }}>●</span> rtc
-      </button>
-    )
-  }
-
-  const config = readRoomConfig(room)
-  const published = snapshot?.tracks.filter((t) => t.dir === 'up') ?? []
-  const subscribed = snapshot?.tracks.filter((t) => t.dir === 'down') ?? []
-  const turnProtocols = snapshot?.turnProtocols ?? []
-  const transports: Array<{
-    mode: TransportMode
-    label: string
-    requires?: string
-    title: string
-  }> = [
-    {
-      mode: 'auto',
-      label: 'auto (udp)',
-      title:
-        'clears the server-cached transport preference and relay-only policy, then full reconnect',
-    },
-    {
-      mode: 'tcp',
-      label: 'tcp',
-      title: 'force-tcp — server prefers TCP candidates (ICE/TCP)',
-    },
-    {
-      mode: 'turn-udp',
-      label: 'turn:udp',
-      requires: 'udp',
-      title:
-        'client-side: iceTransportPolicy relay + full reconnect (no server hook exists)',
-    },
-    {
-      mode: 'turn-tcp',
-      label: 'turn:tcp',
-      requires: 'tcp',
-      title: 'force-tcp — lands on TURN/TCP when it is the TCP path',
-    },
-    {
-      mode: 'turn-tls',
-      label: 'turn:tls',
-      requires: 'tls',
-      title: 'force-tls — server switches you to TURN over TLS',
-    },
-  ]
-
-  return (
-    <section style={styles.panel} aria-label="WebRTC devtools">
-      <div style={styles.metricsLine}>
-        <span>
-          <span style={{ color: COLOR.down }}>↓</span> {snapshot?.downKbps ?? 0}{' '}
-          kbps
-        </span>
-        <span>
-          <span style={{ color: COLOR.up }}>↑</span> {snapshot?.upKbps ?? 0}{' '}
-          kbps
-        </span>
-        <span style={{ color: COLOR.muted }}>
-          rtt{' '}
-          <span style={{ color: COLOR.text }}>{snapshot?.rttMs ?? '–'}</span> ms
-        </span>
-        <span style={{ color: COLOR.muted }}>
-          jitter{' '}
-          <span style={{ color: COLOR.text }}>{snapshot?.jitterMs ?? '–'}</span>{' '}
-          ms
-        </span>
-        <span
-          style={{
-            color: stateColor(connState),
-            fontSize: 10,
-            marginLeft: 'auto',
-          }}
-        >
-          ● {connState}
-        </span>
-        <button
-          type="button"
-          style={styles.close}
-          onClick={() => setOpen(false)}
-          aria-label="Close WebRTC devtools"
-        >
-          ✕
-        </button>
-      </div>
-
-      <Sparkline history={history} />
-
-      <div style={styles.sectionTitle}>room configuration (live)</div>
-      <div style={styles.configList}>
-        {config.map((entry) => (
-          <div key={entry.label} style={styles.configRow}>
-            <span
-              style={{
-                color:
-                  entry.on === undefined
-                    ? COLOR.faint
-                    : entry.on
-                      ? COLOR.ok
-                      : COLOR.bad,
-              }}
-            >
-              ●
-            </span>
-            <span style={styles.configLabel}>{entry.label}</span>
-            <span style={styles.configValue} title={entry.value}>
-              {entry.value}
-            </span>
-          </div>
-        ))}
-      </div>
-
-      <TrackList title="published ↑" rows={published} />
-      <TrackList title="subscribed ↓" rows={subscribed} />
-
-      <div style={styles.sectionTitle}>bandwidth</div>
-      <div style={{ ...styles.list, gap: 4 }}>
-        <CapStepper
-          label="uplink"
-          hint="encoder cap (setParameters)"
-          valueKbps={uplinkCap}
-          onChange={(kbps) => {
-            setUplinkCapState(kbps)
-            void setUplinkCap(room, kbps)
-          }}
-        />
-        <CapStepper
-          label="downlink"
-          hint="SFU limit (subscriber-bandwidth)"
-          valueKbps={downlinkCap}
-          onChange={(kbps) => {
-            setDownlinkCapState(kbps)
-            void setDownlinkCap(room, kbps).catch((e) =>
-              console.warn('[MeetDevtools] downlink cap failed', e)
-            )
-          }}
-        />
-      </div>
-
-      <div style={styles.sectionTitle}>transport</div>
-      <div style={styles.row}>
-        {transports.map(({ mode, label, requires, title }) => {
-          const available = !requires || turnProtocols.includes(requires)
-          const active = transportMode === mode
-          const clickable = available && !active
-          return (
-            <button
-              key={mode}
-              type="button"
-              aria-pressed={active}
-              disabled={!clickable}
-              title={available ? title : `${title} — not configured`}
-              style={{
-                ...styles.button,
-                ...(clickable || active ? {} : styles.buttonDisabled),
-                ...(active ? styles.buttonActive : {}),
-              }}
-              onClick={() => {
-                if (!clickable) return
-                void (
-                  mode === 'auto'
-                    ? releaseForcedTransport(room)
-                    : forceTransport(
-                        room,
-                        mode as 'tcp' | 'turn-udp' | 'turn-tcp' | 'turn-tls'
-                      )
-                ).catch((e) =>
-                  console.warn('[MeetDevtools] transport change failed', e)
-                )
-              }}
-            >
-              {requires && (
-                <span style={{ color: available ? COLOR.ok : COLOR.faint }}>
-                  ●{' '}
-                </span>
-              )}
-              {label}
-            </button>
-          )
-        })}
-        <span style={styles.mono}>
-          route:{' '}
-          {snapshot?.route
-            ? [
-                snapshot.route.protocol,
-                snapshot.route.type,
-                snapshot.route.relayProtocol &&
-                  `relay:${snapshot.route.relayProtocol}`,
-              ]
-                .filter(Boolean)
-                .join('·')
-            : '–'}
-        </span>
-      </div>
-
-      <div style={styles.sectionTitle}>connection scenarios</div>
-      <div style={styles.row}>
-        {SCENARIOS.map((scenario) => (
-          <button
-            key={scenario.id}
-            type="button"
-            title={`${scenario.side}-side simulation — momentary, watch the state dot`}
-            style={{
-              ...styles.button,
-              ...(firedScenario === scenario.id ? styles.buttonActive : {}),
-            }}
-            onClick={() => fireScenario(scenario)}
-          >
-            {scenario.side === 'server' ? '☁ ' : ''}
-            {scenario.label}
-          </button>
-        ))}
-      </div>
-    </section>
-  )
-}
-
-export default MeetDevtools

src/frontend/src/features/devtools/index.tsx

@@ -1,14 +0,0 @@
-import { lazy, Suspense } from 'react'
-
-const LazyPanel = import.meta.env.DEV
-  ? lazy(() => import('./MeetDevtools'))
-  : null
-
-export const MeetDevtools = () => {
-  if (!LazyPanel) return null
-  return (
-    <Suspense fallback={null}>
-      <LazyPanel />
-    </Suspense>
-  )
-}

src/frontend/src/features/devtools/roomConfig.ts

@@ -1,88 +0,0 @@
-import { Room } from 'livekit-client'
-
-export type ConfigEntry = {
-  label: string
-  value: string
-  /** true = feature actively on, false = off, undefined = informational */
-  on?: boolean
-}
-
-const formatBackupCodec = (backup: unknown): string => {
-  if (backup === undefined || backup === true) return 'auto'
-  if (backup === false) return 'off'
-  if (typeof backup === 'object' && backup !== null && 'codec' in backup) {
-    return String((backup as { codec: unknown }).codec)
-  }
-  return String(backup)
-}
-
-export const readRoomConfig = (room: Room): ConfigEntry[] => {
-  const options = room.options
-  const publish = options.publishDefaults
-  const adaptive = options.adaptiveStream
-
-  const entries: ConfigEntry[] = [
-    {
-      label: 'adaptiveStream',
-      value:
-        typeof adaptive === 'object'
-          ? JSON.stringify(adaptive)
-          : String(!!adaptive),
-      on: !!adaptive,
-    },
-    {
-      label: 'dynacast',
-      value: String(!!options.dynacast),
-      on: !!options.dynacast,
-    },
-    {
-      label: 'e2ee',
-      value: String(room.isE2EEEnabled),
-      on: room.isE2EEEnabled,
-    },
-    {
-      label: 'videoCodec',
-      value: publish?.videoCodec ?? 'default',
-    },
-    {
-      label: 'backupCodec',
-      value: formatBackupCodec(publish?.backupCodec),
-    },
-    {
-      label: 'simulcast',
-      value: String(publish?.simulcast ?? true),
-      on: publish?.simulcast ?? true,
-    },
-    {
-      label: 'audio dtx',
-      value: String(publish?.dtx ?? true),
-      on: publish?.dtx ?? true,
-    },
-    {
-      label: 'audio red',
-      value: String(publish?.red ?? true),
-      on: publish?.red ?? true,
-    },
-    {
-      label: 'quality (local)',
-      value: room.localParticipant.connectionQuality,
-    },
-  ]
-
-  const server = room.serverInfo
-  if (server) {
-    entries.push({
-      label: 'server',
-      value: [
-        server.version && `v${server.version}`,
-        server.region,
-        server.protocol !== undefined && `proto ${server.protocol}`,
-        server.edition !== undefined && `edition ${server.edition}`,
-      ]
-        .filter(Boolean)
-        .join(' · '),
-    })
-  }
-
-  return entries
-}

src/frontend/src/features/devtools/simulation.ts

@@ -1,192 +0,0 @@
-import { Room, Track } from 'livekit-client'
-// Transitive dependency of livekit-client (pinned by it); used only to
-// build the one signal request room.simulateScenario cannot express.
-import { SimulateScenario } from '@livekit/protocol'
-
-/** Shared bandwidth ladder for the −/+ steppers; null = unlimited. */
-export const BITRATE_LADDER_KBPS: Array<number | null> = [
-  null,
-  2000,
-  1000,
-  600,
-  300,
-  150,
-]
-
-export const stepBitrate = (
-  current: number | null,
-  direction: 'decrease' | 'increase'
-): number | null => {
-  const index = BITRATE_LADDER_KBPS.indexOf(current)
-  const safeIndex = index === -1 ? 0 : index
-  const next =
-    direction === 'decrease'
-      ? Math.min(safeIndex + 1, BITRATE_LADDER_KBPS.length - 1)
-      : Math.max(safeIndex - 1, 0)
-  return BITRATE_LADDER_KBPS[next]
-}
-
-const savedEncodings = new WeakMap<RTCRtpSender, Array<number | undefined>>()
-
-export const setUplinkCap = async (
-  room: Room,
-  kbps: number | null
-): Promise<void> => {
-  const senders: RTCRtpSender[] = []
-  room.localParticipant.trackPublications.forEach((pub) => {
-    const track = pub.track
-    if (track?.kind === Track.Kind.Video && track.sender) {
-      senders.push(track.sender)
-    }
-  })
-
-  for (const sender of senders) {
-    const params = sender.getParameters()
-    if (!params.encodings || params.encodings.length === 0) continue
-
-    if (kbps === null) {
-      const original = savedEncodings.get(sender)
-      params.encodings.forEach((encoding, i) => {
-        encoding.maxBitrate = original?.[i]
-      })
-      savedEncodings.delete(sender)
-    } else {
-      if (!savedEncodings.has(sender)) {
-        savedEncodings.set(
-          sender,
-          params.encodings.map((encoding) => encoding.maxBitrate)
-        )
-      }
-      const activeCount =
-        params.encodings.filter((encoding) => encoding.active !== false)
-          .length || 1
-      // Split the budget across active simulcast layers / SVC encoding.
-      const perEncoding = Math.max(
-        30_000,
-        Math.floor((kbps * 1000) / activeCount)
-      )
-      params.encodings.forEach((encoding) => {
-        encoding.maxBitrate = perEncoding
-      })
-    }
-
-    try {
-      await sender.setParameters(params)
-    } catch (e) {
-      console.warn('[MeetDevtools] setParameters failed', e)
-    }
-  }
-}
-
-export const setDownlinkCap = (
-  room: Room,
-  kbps: number | null
-): Promise<void> =>
-  room.simulateScenario('subscriber-bandwidth', kbps === null ? 0 : kbps * 1000)
-
-export type Scenario = {
-  id: string
-  label: string
-  /** where the simulation happens */
-  side: 'client' | 'server'
-  run: (room: Room) => Promise<void>
-}
-
-export const SCENARIOS: Scenario[] = [
-  {
-    id: 'resume',
-    label: 'reconnect (resume)',
-    side: 'client',
-    // Replays a signaling WebSocket loss; media keeps flowing, client resumes.
-    run: (room) => room.simulateScenario('signal-reconnect'),
-  },
-  {
-    id: 'resume-fail',
-    label: 'reconnect (resume fails)',
-    side: 'client',
-    // Same, but the next resume attempt fails → exercises the retry ladder.
-    run: (room) => room.simulateScenario('resume-reconnect'),
-  },
-  {
-    id: 'full-reconnect',
-    label: 'full reconnect',
-    side: 'client',
-    // Complete rejoin with brand-new peer connections.
-    run: (room) => room.simulateScenario('full-reconnect'),
-  },
-  {
-    id: 'migration',
-    label: 'server migration',
-    side: 'server',
-    run: (room) => room.simulateScenario('migration'),
-  },
-  {
-    id: 'node-failure',
-    label: 'SFU node failure',
-    side: 'server',
-    run: (room) => room.simulateScenario('node-failure'),
-  },
-  {
-    id: 'server-leave',
-    label: 'server disconnect',
-    side: 'server',
-    // Server-initiated leave: the closest thing to "you got kicked".
-    run: (room) => room.simulateScenario('server-leave'),
-  },
-]
-
-export type TransportMode =
-  | 'auto'
-  | 'tcp'
-  | 'turn-udp'
-  | 'turn-tcp'
-  | 'turn-tls'
-
-const clearServerTransportPreference = (room: Room): Promise<void> =>
-  room.engine.client.sendSimulateScenario(
-    new SimulateScenario({
-      scenario: { case: 'switchCandidateProtocol', value: 0 },
-    })
-  )
-
-const setRelayOnly = (room: Room, relay: boolean) => {
-  room.engine.rtcConfig = {
-    ...room.engine.rtcConfig,
-    iceTransportPolicy: relay ? 'relay' : 'all',
-  }
-}
-
-const settle = () => new Promise((resolve) => setTimeout(resolve, 300))
-
-export const forceTransport = async (
-  room: Room,
-  mode: 'tcp' | 'turn-udp' | 'turn-tcp' | 'turn-tls'
-): Promise<void> => {
-  if (mode === 'turn-udp') {
-    await clearServerTransportPreference(room)
-    setRelayOnly(room, true)
-    await settle()
-    return room.simulateScenario('full-reconnect')
-  }
-  setRelayOnly(room, false)
-  return room.simulateScenario(mode === 'turn-tls' ? 'force-tls' : 'force-tcp')
-}
-
-export const releaseForcedTransport = async (room: Room): Promise<void> => {
-  setRelayOnly(room, false)
-  await clearServerTransportPreference(room)
-  await settle()
-  await room.simulateScenario('full-reconnect')
-}
-
-export const transportModeFromRoute = (route?: {
-  protocol?: string
-  relayProtocol?: string
-}): TransportMode => {
-  // relayProtocol is the client→TURN leg; protocol alone means no relay.
-  if (route?.relayProtocol === 'tls') return 'turn-tls'
-  if (route?.relayProtocol === 'tcp') return 'turn-tcp'
-  if (route?.relayProtocol === 'udp') return 'turn-udp'
-  if (route?.protocol === 'tcp') return 'tcp'
-  return 'auto'
-}

src/frontend/src/features/devtools/useWebRTCStats.ts

@@ -1,243 +0,0 @@
-import { useEffect, useRef, useState } from 'react'
-import { Room } from 'livekit-client'
-
-export type TrackRow = {
-  key: string
-  dir: 'up' | 'down'
-  label: string
-  codec?: string
-  kbps: number
-  fps?: number
-  res?: string
-}
-
-export type StatsSnapshot = {
-  ts: number
-  /** wire totals from transport stats (includes headers, RTCP, FEC) */
-  upKbps: number
-  downKbps: number
-  rttMs?: number
-  /** worst inbound RTP jitter across subscribed tracks */
-  jitterMs?: number
-  availableOutKbps?: number
-  /** selected ICE route of the publisher transport (measured, not assumed) */
-  route?: { protocol?: string; type?: string; relayProtocol?: string }
-  /**
-   * relayProtocol values of gathered relay local candidates — i.e. which
-   * client→TURN transports are actually configured (udp/tcp/tls). Empty
-   * when no TURN server is configured.
-   */
-  turnProtocols: string[]
-  tracks: TrackRow[]
-}
-
-type StatDict = Record<string, unknown>
-type Counters = Record<string, number>
-
-const asNumber = (v: unknown): number | undefined =>
-  typeof v === 'number' && Number.isFinite(v) ? v : undefined
-
-const asString = (v: unknown): string | undefined =>
-  typeof v === 'string' ? v : undefined
-
-const shortCodec = (mimeType?: string) =>
-  mimeType ? mimeType.replace(/^(audio|video)\//, '') : undefined
-
-const buildTrackLabels = (room: Room) => {
-  const labels = new Map<string, string>()
-  room.localParticipant.trackPublications.forEach((pub) => {
-    const id = pub.track?.mediaStreamTrack?.id
-    if (id) labels.set(id, `local ${pub.source}`)
-  })
-  room.remoteParticipants.forEach((participant) => {
-    // Keep rows scannable: participant names capped at 10 chars.
-    const rawName = participant.name || participant.identity
-    const name = rawName.length > 10 ? `${rawName.slice(0, 10)}.` : rawName
-    participant.trackPublications.forEach((pub) => {
-      const id = pub.track?.mediaStreamTrack?.id
-      if (id) labels.set(id, `${name} ${pub.source}`)
-    })
-  })
-  return labels
-}
-
-export const useWebRTCStats = (
-  room: Room,
-  enabled: boolean,
-  intervalMs = 1000
-) => {
-  // Single source of truth: the snapshot is just the last history entry.
-  const [history, setHistory] = useState<StatsSnapshot[]>([])
-  const prevRef = useRef(new Map<string, Counters>())
-
-  useEffect(() => {
-    if (!enabled) return
-
-    let cancelled = false
-    const prev = prevRef.current
-
-    /** Per-stat counter deltas; returns 0 on the first sighting. */
-    const deltas = (key: string, now: Counters): Counters => {
-      const before = prev.get(key)
-      prev.set(key, now)
-      const out: Counters = {}
-      for (const [name, value] of Object.entries(now)) {
-        out[name] = before?.[name] !== undefined ? value - before[name] : 0
-      }
-      return out
-    }
-
-    const collect = async () => {
-      const reports: Array<{ pc: 'pub' | 'sub'; report: RTCStatsReport }> = []
-      try {
-        // Not public API — see file header.
-        const manager = room.engine?.pcManager
-        const pub = await manager?.publisher?.getStats()
-        if (pub) reports.push({ pc: 'pub', report: pub })
-        const sub = await manager?.subscriber?.getStats()
-        if (sub) reports.push({ pc: 'sub', report: sub })
-      } catch {
-        // Engine not ready or SDK internals changed; panel shows nothing.
-      }
-      if (cancelled || reports.length === 0) return
-
-      const labels = buildTrackLabels(room)
-      const tracks: TrackRow[] = []
-      let upKbps = 0
-      let downKbps = 0
-      let rttMs: number | undefined
-      let jitterMs: number | undefined
-      let availableOutKbps: number | undefined
-      let route: StatsSnapshot['route']
-      const turnProtocols = new Set<string>()
-
-      for (const { pc, report } of reports) {
-        const byId = new Map<string, StatDict>()
-        report.forEach((stat) => byId.set(stat.id as string, stat as StatDict))
-
-        report.forEach((raw) => {
-          const stat = raw as StatDict
-          const type = asString(stat.type)
-          const ts = asNumber(stat.timestamp) ?? Date.now()
-          const key = `${pc}:${asString(stat.id) ?? ''}`
-
-          if (
-            type === 'local-candidate' &&
-            asString(stat.candidateType) === 'relay'
-          ) {
-            // Relay candidates are only gathered when a TURN server is
-            // configured and reachable; relayProtocol says how the client
-            // reaches it (udp/tcp/tls).
-            turnProtocols.add(
-              asString(stat.relayProtocol) ?? asString(stat.protocol) ?? 'udp'
-            )
-          }
-
-          if (type === 'transport') {
-            const d = deltas(key, {
-              sent: asNumber(stat.bytesSent) ?? 0,
-              received: asNumber(stat.bytesReceived) ?? 0,
-              ts,
-            })
-            if (d.ts > 0) {
-              upKbps += Math.max(0, (d.sent * 8) / d.ts)
-              downKbps += Math.max(0, (d.received * 8) / d.ts)
-            }
-          }
-
-          if (type === 'candidate-pair' && stat.nominated === true) {
-            const rtt = asNumber(stat.currentRoundTripTime)
-            if (rtt !== undefined) rttMs = Math.round(rtt * 1000)
-            const available = asNumber(stat.availableOutgoingBitrate)
-            if (available !== undefined && pc === 'pub') {
-              availableOutKbps = Math.round(available / 1000)
-            }
-            if (pc === 'pub') {
-              const local = byId.get(asString(stat.localCandidateId) ?? '')
-              route = {
-                protocol: asString(local?.protocol),
-                type: asString(local?.candidateType),
-                relayProtocol: asString(local?.relayProtocol),
-              }
-            }
-          }
-
-          if (type === 'outbound-rtp' || type === 'inbound-rtp') {
-            const isUp = type === 'outbound-rtp'
-
-            if (!isUp) {
-              const jitter = asNumber(stat.jitter)
-              if (jitter !== undefined) {
-                const ms = Math.round(jitter * 1000)
-                if (jitterMs === undefined || ms > jitterMs) jitterMs = ms
-              }
-            }
-
-            const d = deltas(key, {
-              bytes: asNumber(isUp ? stat.bytesSent : stat.bytesReceived) ?? 0,
-              ts,
-            })
-            const kbps = d.ts > 0 ? Math.max(0, (d.bytes * 8) / d.ts) : 0
-
-            // Resolve codec + source track.
-            const codecStat = byId.get(asString(stat.codecId) ?? '')
-            let msTrackId = asString(stat.trackIdentifier)
-            if (!msTrackId && isUp) {
-              const mediaSource = byId.get(asString(stat.mediaSourceId) ?? '')
-              msTrackId = asString(mediaSource?.trackIdentifier)
-            }
-            const rid = asString(stat.rid)
-            const baseLabel =
-              (msTrackId && labels.get(msTrackId)) ??
-              `${asString(stat.kind) ?? 'media'} ssrc ${asNumber(stat.ssrc) ?? '?'}`
-
-            const width = asNumber(stat.frameWidth)
-            const height = asNumber(stat.frameHeight)
-
-            tracks.push({
-              key,
-              dir: isUp ? 'up' : 'down',
-              label: rid ? `${baseLabel} [${rid}]` : baseLabel,
-              codec: shortCodec(asString(codecStat?.mimeType)),
-              kbps,
-              fps: asNumber(stat.framesPerSecond),
-              res: width && height ? `${width}x${height}` : undefined,
-            })
-          }
-        })
-      }
-
-      // Stable order (direction, then label): sorting by bitrate would
-      // reshuffle rows on every tick as kbps fluctuates.
-      tracks.sort((a, b) =>
-        a.dir === b.dir
-          ? a.label.localeCompare(b.label)
-          : a.dir === 'up'
-            ? -1
-            : 1
-      )
-
-      const next: StatsSnapshot = {
-        ts: Date.now(),
-        upKbps: Math.round(upKbps),
-        downKbps: Math.round(downKbps),
-        rttMs,
-        jitterMs,
-        availableOutKbps,
-        route,
-        turnProtocols: Array.from(turnProtocols).sort(),
-        tracks,
-      }
-      setHistory((h) => [...h.slice(-59), next])
-    }
-
-    void collect()
-    const id = window.setInterval(() => void collect(), intervalMs)
-    return () => {
-      cancelled = true
-      window.clearInterval(id)
-    }
-  }, [room, enabled, intervalMs])
-
-  return { snapshot: history[history.length - 1], history }
-}

src/frontend/src/features/rooms/components/Conference.tsx

@@ -43,7 +43,6 @@ import { useSnapshot } from 'valtio'
 import { userPreferencesStore } from '@/stores/userPreferences'
 import { userStore } from '@/stores/user'
 import { WatchMediaDeviceErrors } from './WatchMediaDeviceErrors'
-import { MeetDevtools } from '@/features/devtools'
 import { VOICE_AUDIO_CONSTRAINTS } from '@/features/rooms/livekit/utils/constants'
 
 export const Conference = ({
@@ -299,7 +298,6 @@ export const Conference = ({
           <VideoConference />
           {!isMobile && <InviteDialog mode={mode} />}
           <PictureInPictureConference />
-          <MeetDevtools />
         </LiveKitRoom>
       </Screen>
     </QueryAware>