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node_modules/matrix-js-sdk/lib/webrtc/stats/media/mediaTrackHandler.js

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+export class MediaTrackHandler {
+  constructor(pc) {
+    this.pc = pc;
+  }
+  getLocalTracks(kind) {
+    const isNotNullAndKind = track => {
+      return track !== null && track.kind === kind;
+    };
+    return this.pc.getTransceivers().filter(t => t.currentDirection === "sendonly" || t.currentDirection === "sendrecv").filter(t => t.sender !== null).map(t => t.sender).map(s => s.track).filter(isNotNullAndKind);
+  }
+  getTackById(trackId) {
+    return this.pc.getTransceivers().map(t => {
+      if (t?.sender.track !== null && t.sender.track.id === trackId) {
+        return t.sender.track;
+      }
+      if (t?.receiver.track !== null && t.receiver.track.id === trackId) {
+        return t.receiver.track;
+      }
+      return undefined;
+    }).find(t => t !== undefined);
+  }
+  getLocalTrackIdByMid(mid) {
+    const transceiver = this.pc.getTransceivers().find(t => t.mid === mid);
+    return transceiver?.sender?.track?.id;
+  }
+  getRemoteTrackIdByMid(mid) {
+    const transceiver = this.pc.getTransceivers().find(t => t.mid === mid);
+    return transceiver?.receiver?.track?.id;
+  }
+  getActiveSimulcastStreams() {
+    //@TODO implement this right.. Check how many layer configured
+    return 3;
+  }
+  getTransceiverByTrackId(trackId) {
+    return this.pc.getTransceivers().find(t => {
+      return t.receiver.track.id === trackId || t.sender.track !== null && t.sender.track.id === trackId;
+    });
+  }
+}
+//# sourceMappingURL=mediaTrackHandler.js.map