feat(ui): option to set target resolution during the call (#1119)

* option to set target resolution during the call

* tweak

Author: Brazol

packages/stream_video/lib/src/call/call.dart

@@ -2876,6 +2876,30 @@ class Call {
     return result.map((_) => none);
   }
 
+  /// Changes the camera capture target resolution during an active call.
+  Future<Result<None>> setCameraTargetResolution(
+    StreamTargetResolution targetResolution,
+  ) async {
+    connectOptions = _connectOptions.copyWith(
+      targetResolution: targetResolution,
+    );
+
+    if (_session?.rtcManager == null) {
+      return const Result.success(none);
+    }
+
+    final params = targetResolution.toVideoParams();
+    final result = await _session!.rtcManager!.setCameraVideoParameters(
+      params: params,
+    );
+
+    if (result.isSuccess) {
+      return const Result.success(none);
+    } else {
+      return result.map((_) => none);
+    }
+  }
+
   Future<Result<None>> setMicrophoneEnabled({
     required bool enabled,
     AudioConstraints? constraints,

packages/stream_video/lib/src/webrtc/rtc_manager.dart

@@ -1021,6 +1021,40 @@ extension PublisherRtcManager on RtcManager {
     tracks[updatedTrack.trackId] = updatedTrack;
     return Result.success(updatedTrack);
   }
+
+  Future<Result<RtcLocalCameraTrack>> setCameraVideoParameters({
+    required RtcVideoParameters params,
+  }) async {
+    final track = getPublisherTrackByType(SfuTrackType.video);
+
+    if (track == null) {
+      _logger.w(() => '[setCameraVideoParameters] rejected (track not found)');
+      return Result.error('Track not found');
+    }
+
+    if (track is! RtcLocalCameraTrack) {
+      _logger.w(
+        () => '[setCameraVideoParameters] rejected (track is not camera)',
+      );
+      return Result.error('Track is not camera');
+    }
+
+    final transceivers = transceiversManager
+        .getTransceiversForTrack(track.trackId)
+        .toList();
+
+    final updatedTrack = await track.recreate(
+      transceivers,
+      mediaConstraints: track.mediaConstraints.copyWith(
+        params: track.mediaConstraints.params.copyWith(
+          dimension: params.dimension,
+        ),
+      ),
+    );
+
+    tracks[updatedTrack.trackId] = updatedTrack;
+    return Result.success(updatedTrack);
+  }
 }
 
 extension RtcManagerTrackHelper on RtcManager {

packages/stream_video_flutter/CHANGELOG.md

@@ -1,5 +1,8 @@
 ## Unreleased
 
+### ✅ Added
+* Added support for changing the camera target resolution during an ongoing call using the `call.setCameraTargetResolution()` method.
+
 #### LivestreamPlayer Improvements
 * Added support for Picture in Picture (PiP) mode, configurable via the `pictureInPictureConfiguration` parameter. For platform-specific setup, refer to the [documentation](https://getstream.io/video/docs/flutter/advanced/picture_in_picture/).
 * Introduced the `joinBehaviour` parameter, allowing control over whether and when the `LivestreamPlayer` automatically connects the user to a call.