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Reuse static screen frames across encoder changes and test rollback

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evgeny committed 2026-10-14 12:27:50 +02:00
1 parent c08415a255
commit e4f9a48c2c
2 files changed
+21 -3
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tools/chatgui/src/stream_publish_engine.cpp
+2 -2
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@@ -133,7 +133,7 @@ bool StreamPublishEngine::openSource(const StreamPublishConfig& config) {
uint64_t generation;
{ std::lock_guard<std::mutex> guard(m->lock); generation = ++m->sourceGeneration;
m->backendOrigin = m->backendAnchor = -1; m->capturedFrames = 0; }
m->session = std::make_unique<QMediaCaptureSession>(); m->sink = std::make_unique<QVideoSink>();
m->session = std::make_unique<QMediaCaptureSession>(); m->sink = std::make_unique<QVideoSink>(this);
m->session->setVideoSink(m->sink.get());
connect(m->sink.get(), &QVideoSink::videoFrameChanged, this, [this, generation](const QVideoFrame& frame) {
if (!frame.isValid()) { DEBUG_TRACE(DEBUG_CATEGORY_VIDEO, "desktop capture sink invalid frame generation=%llu", (unsigned long long)generation); return; }
@@ -430,7 +430,7 @@ void StreamPublishEngine::videoLoop() {
}
bool screen = config.source.kind != StreamVideoSource::Camera;
if (frame.isValid()) {
if (capture <= lastPts || monotonicUs() - m->origin - capture > 250000) { skipped++; continue; }
if (!screen && (capture <= lastPts || monotonicUs() - m->origin - capture > 250000)) { skipped++; continue; }
lastImage = frame.toImage();
if (lastImage.isNull()) {
DEBUG_ERROR(DEBUG_CATEGORY_VIDEO, "desktop captured frame conversion failed format=%d", frame.pixelFormat());