snapshot of https://github.com/jitsi/jitsi-meet.git @ fd1749dd28f4138aa80234fc7f311b19aaffa0e7 (2026-09-15)

react/features/video-quality/reducer.ts

@@ -0,0 +1,130 @@
+import { SET_CONFIG } from '../base/config/actionTypes';
+import { IConfig } from '../base/config/configType';
+import PersistenceRegistry from '../base/redux/PersistenceRegistry';
+import ReducerRegistry from '../base/redux/ReducerRegistry';
+import { set } from '../base/redux/functions';
+
+import {
+    SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_LARGE_VIDEO,
+    SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_SCREEN_SHARING_FILMSTRIP,
+    SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_STAGE_FILMSTRIP,
+    SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_TILE_VIEW,
+    SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_VERTICAL_FILMSTRIP,
+    SET_PREFERRED_VIDEO_QUALITY
+} from './actionTypes';
+import { VIDEO_QUALITY_LEVELS } from './constants';
+import { validateMinHeightForQualityLvl } from './functions';
+import logger from './logger';
+
+const DEFAULT_STATE = {
+    maxReceiverVideoQualityForLargeVideo: VIDEO_QUALITY_LEVELS.ULTRA,
+    maxReceiverVideoQualityForScreenSharingFilmstrip: VIDEO_QUALITY_LEVELS.HIGH,
+    maxReceiverVideoQualityForStageFilmstrip: VIDEO_QUALITY_LEVELS.HIGH,
+    maxReceiverVideoQualityForTileView: VIDEO_QUALITY_LEVELS.STANDARD,
+    maxReceiverVideoQualityForVerticalFilmstrip: VIDEO_QUALITY_LEVELS.LOW,
+    minHeightForQualityLvl: new Map(),
+    preferredVideoQuality: VIDEO_QUALITY_LEVELS.ULTRA
+};
+
+
+Object.values(VIDEO_QUALITY_LEVELS).sort()
+    .forEach(value => {
+        if (value > VIDEO_QUALITY_LEVELS.NONE) {
+            DEFAULT_STATE.minHeightForQualityLvl.set(value, value);
+        }
+    });
+
+export interface IVideoQualityState {
+    maxReceiverVideoQualityForLargeVideo: number;
+    maxReceiverVideoQualityForScreenSharingFilmstrip: number;
+    maxReceiverVideoQualityForStageFilmstrip: number;
+    maxReceiverVideoQualityForTileView: number;
+    maxReceiverVideoQualityForVerticalFilmstrip: number;
+    minHeightForQualityLvl: Map<number, number>;
+    preferredVideoQuality: number;
+}
+
+export interface IVideoQualityPersistedState {
+    persistedPrefferedVideoQuality?: number;
+}
+
+
+// When the persisted state is initialized the current state (for example the default state) is erased.
+// In order to workaround this issue we need additional state for the persisted properties.
+PersistenceRegistry.register('features/video-quality-persistent-storage');
+
+ReducerRegistry.register<IVideoQualityPersistedState>('features/video-quality-persistent-storage',
+(state = {}, action): IVideoQualityPersistedState => {
+    switch (action.type) {
+    case SET_PREFERRED_VIDEO_QUALITY: {
+        const { preferredVideoQuality } = action;
+
+        return {
+            ...state,
+            persistedPrefferedVideoQuality: preferredVideoQuality
+        };
+    }
+    }
+
+    return state;
+});
+
+ReducerRegistry.register<IVideoQualityState>('features/video-quality',
+(state = DEFAULT_STATE, action): IVideoQualityState => {
+    switch (action.type) {
+    case SET_CONFIG:
+        return _setConfig(state, action);
+    case SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_LARGE_VIDEO:
+        return set(state,
+            'maxReceiverVideoQualityForLargeVideo',
+            action.maxReceiverVideoQuality);
+    case SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_SCREEN_SHARING_FILMSTRIP:
+        return set(state,
+            'maxReceiverVideoQualityForScreenSharingFilmstrip',
+            action.maxReceiverVideoQuality);
+    case SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_STAGE_FILMSTRIP:
+        return set(
+            state,
+            'maxReceiverVideoQualityForStageFilmstrip',
+            action.maxReceiverVideoQuality);
+    case SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_TILE_VIEW:
+        return set(
+            state,
+            'maxReceiverVideoQualityForTileView',
+            action.maxReceiverVideoQuality);
+    case SET_MAX_RECEIVER_VIDEO_QUALITY_FOR_VERTICAL_FILMSTRIP:
+        return set(
+            state,
+            'maxReceiverVideoQualityForVerticalFilmstrip',
+            action.maxReceiverVideoQuality);
+    case SET_PREFERRED_VIDEO_QUALITY: {
+        const { preferredVideoQuality } = action;
+
+        return {
+            ...state,
+            preferredVideoQuality
+        };
+    }
+    }
+
+    return state;
+});
+
+/**
+ * Extracts the height to quality level mapping from the new config.
+ *
+ * @param {Object} state - The Redux state of feature base/lastn.
+ * @param {Action} action - The Redux action SET_CONFIG to reduce.
+ * @private
+ * @returns {Object} The new state after the reduction of the specified action.
+ */
+function _setConfig(state: IVideoQualityState, { config }: { config: IConfig; }) {
+    const configuredMap = config?.videoQuality?.minHeightForQualityLvl;
+    const convertedMap = validateMinHeightForQualityLvl(configuredMap);
+
+    if (configuredMap && !convertedMap) {
+        logger.error('Invalid config value videoQuality.minHeightForQualityLvl');
+    }
+
+    return convertedMap ? set(state, 'minHeightForQualityLvl', convertedMap) : state;
+}