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Display every new desktop call preview frame

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evgeny committed 2026-10-15 02:18:54 +02:00
1 parent 55293483da
commit 459b1ecc01
1 file changed
+18 -4
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tools/chatgui/src/call_video_engine.cpp
+18 -4
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@@ -35,7 +35,8 @@ struct CallVideoEngine::Impl {
uint64_t captured = 0;
QImage shown;
uint64_t shownSerial = 0, deliveredSerial = 0;
int64_t previewPts = -1, previewAt = 0;
int64_t previewPts = -1, previewReportAt = 0, previewMaxUs = 0;
unsigned previewFrames = 0;
bool previewVisible = false;
QString status;
bool statusDirty = false;
@@ -52,6 +53,7 @@ struct CallVideoEngine::Impl {
};
CallVideoEngine::CallVideoEngine(QObject* parent) : QObject(parent), m(std::make_unique<Impl>()) {
m_timer.setInterval(20);
m_timer.setTimerType(Qt::PreciseTimer);
connect(&m_timer, &QTimer::timeout, this, [this] {
QImage image; QString status; bool changed = false, report = false;
{ std::lock_guard<std::mutex> guard(m->lock);
@@ -64,8 +66,8 @@ CallVideoEngine::CallVideoEngine(QObject* parent) : QObject(parent), m(std::make
int64_t now = nowUs();
{ std::lock_guard<std::mutex> guard(m->lock);
if (!m->enabled && m->previewVisible) { m->previewVisible = false; clear = true; }
if (m->enabled && m->raw.isValid() && m->pts != m->previewPts && now - m->previewAt >= 100000) {
preview = m->raw; m->previewPts = m->pts; m->previewAt = now;
if (m->enabled && m->raw.isValid() && m->pts != m->previewPts) {
preview = m->raw; m->previewPts = m->pts;
} }
if (clear) emit localImageChanged({});
if (preview.isValid()) {
@@ -73,8 +75,15 @@ CallVideoEngine::CallVideoEngine(QObject* parent) : QObject(parent), m(std::make
if (!local.isNull()) {
m->previewVisible = true;
emit localImageChanged(local.scaled(320, 240, Qt::KeepAspectRatio, Qt::SmoothTransformation));
++m->previewFrames;
m->previewMaxUs = std::max(m->previewMaxUs, nowUs() - now);
} else DEBUG_WARN(DEBUG_CATEGORY_CALL, "call camera preview conversion failed");
}
if (m->previewVisible && now - m->previewReportAt >= 1000000) {
DEBUG_DEBUG(DEBUG_CATEGORY_CALL, "video local preview call=%llu interval_us=%lld frames=%u update_max_us=%lld",
(unsigned long long)m->id, (long long)(now - m->previewReportAt), m->previewFrames, (long long)m->previewMaxUs);
m->previewReportAt = now; m->previewFrames = 0; m->previewMaxUs = 0;
}
#endif
});
}
@@ -99,7 +108,8 @@ void CallVideoEngine::closeCamera() {
m->capture.reset(); m->camera.reset(); m->sink.reset();
{ std::lock_guard<std::mutex> guard(m->lock); m->raw = {}; m->pts = m->backend = m->anchor = -1; }
#endif
m->previewPts = -1; m->previewVisible = false; emit localImageChanged({});
m->previewPts = -1; m->previewVisible = false; m->previewReportAt = nowUs(); m->previewFrames = 0; m->previewMaxUs = 0;
emit localImageChanged({});
}
void CallVideoEngine::stop() {
m->running = false; m_timer.stop(); closeCamera();
@@ -127,6 +137,10 @@ void CallVideoEngine::setVideo(bool enabled, const QByteArray& cameraId, int wid
if (score < distance) { best = f; distance = score; }
}
if (!best.isNull()) m->camera->setCameraFormat(best);
const auto selectedFormat = m->camera->cameraFormat();
DEBUG_INFO(DEBUG_CATEGORY_CALL, "call camera selected device=%s size=%dx%d pixel=%d fps=%.3f..%.3f",
selected.id().constData(), selectedFormat.resolution().width(), selectedFormat.resolution().height(),
selectedFormat.pixelFormat(), selectedFormat.minFrameRate(), selectedFormat.maxFrameRate());
connect(m->sink.get(), &QVideoSink::videoFrameChanged, this, [this, revision](const QVideoFrame& frame) {
if (!frame.isValid() || !m->running) return;
std::lock_guard<std::mutex> guard(m->lock);