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[fix] prevent screen capture without connected peers

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This commit is contained in:
dijunkun
2026-08-19 15:51:37 +08:00
parent 5d0453fff3
commit 3be283238c
2 changed files with 35 additions and 5 deletions
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src/gui/features/devices/session_device_manager.cpp
+24 -1
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@@ -60,6 +60,26 @@ int SessionDeviceManager::InitializeScreenCapturer() {
return;
}
std::vector<std::string> connected_remote_ids;
{
std::shared_lock lock(owner_.connection_status_mutex_);
connected_remote_ids.reserve(owner_.connection_status_.size());
for (const auto &[remote_id, status] : owner_.connection_status_) {
if (status == ConnectionStatus::Connected) {
connected_remote_ids.push_back(remote_id);
}
}
}
// Capture can still deliver frames while ICE is gathering or after
// the final controller disconnects. Do not broadcast those frames to
// MiniRTC: a broadcast also reaches newly joining peers whose ICE
// transport is not ready yet.
if (connected_remote_ids.empty()) {
last_frame_time_ = now_time;
return;
}
const std::string stream_id = display_name ? display_name : "";
const bool resumed_after_gap =
last_frame_time_ != 0 && duration >= kCaptureResumeKeyFrameGapMs;
@@ -79,7 +99,10 @@ int SessionDeviceManager::InitializeScreenCapturer() {
frame.width = width;
frame.height = height;
frame.captured_timestamp = GetSystemTimeMicros(owner_.peer_);
SendVideoFrame(owner_.peer_, &frame, stream_id.c_str());
for (const std::string &remote_id : connected_remote_ids) {
SendVideoFrameToPeer(owner_.peer_, &frame, stream_id.c_str(),
remote_id.data(), remote_id.size());
}
last_video_frame_stream_id_ = stream_id;
last_frame_time_ = now_time;
});