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Code Issues Releases Wiki Activity

Save last camera image as a placeholder.

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This commit is contained in:
John Preston
2024-10-23 22:34:12 +04:00
parent 9ce6636c6a
commit ccc6c6daa5
5 changed files with 113 additions and 22 deletions
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59
Telegram/SourceFiles/ui/controls/round_video_recorder.cpp
View File

@@ -1052,6 +1052,10 @@ Fn<void(Media::Capture::Chunk)> RoundVideoRecorder::audioChunkProcessor() {
};
}
rpl::producer<QImage> RoundVideoRecorder::placeholderUpdates() const {
return _placeholderUpdates.events();
}
int RoundVideoRecorder::previewSize() const {
return _side;
}
@@ -1096,6 +1100,31 @@ void RoundVideoRecorder::progressTo(float64 progress) {
_preview->update();
}
void RoundVideoRecorder::preparePlaceholder(const QImage &placeholder) {
const auto ratio = style::DevicePixelRatio();
const auto full = QSize(_side, _side) * ratio;
if (!placeholder.isNull()) {
_framePlaceholder = Images::Circle(
placeholder.scaled(
full,
Qt::KeepAspectRatio,
Qt::SmoothTransformation));
_framePlaceholder.setDevicePixelRatio(ratio);
} else {
_framePlaceholder = QImage(
full,
QImage::Format_ARGB32_Premultiplied);
_framePlaceholder.fill(Qt::transparent);
_framePlaceholder.setDevicePixelRatio(ratio);
auto p = QPainter(&_framePlaceholder);
auto hq = PainterHighQualityEnabler(p);
p.setPen(Qt::NoPen);
p.setBrush(Qt::black);
p.drawEllipse(0, 0, _side, _side);
}
}
void RoundVideoRecorder::prepareFrame(bool blurred) {
if (_frameOriginal.isNull()) {
return;
@@ -1124,18 +1153,14 @@ void RoundVideoRecorder::prepareFrame(bool blurred) {
const auto ratio = style::DevicePixelRatio();
if (blurred) {
static constexpr auto kRadius = 16;
_framePlaceholder = Images::Circle(
Images::BlurLargeImage(
copy.scaled(
QSize(kBlurredSize, kBlurredSize),
Qt::KeepAspectRatio,
Qt::FastTransformation),
kRadius
).scaled(
QSize(_side, _side) * ratio,
auto image = Images::BlurLargeImage(
copy.scaled(
QSize(kBlurredSize, kBlurredSize),
Qt::KeepAspectRatio,
Qt::SmoothTransformation));
_framePlaceholder.setDevicePixelRatio(ratio);
Qt::FastTransformation),
kRadius);
preparePlaceholder(image);
_placeholderUpdates.fire(std::move(image));
} else {
_framePrepared = Images::Circle(copy.scaled(
QSize(_side, _side) * ratio,
@@ -1147,17 +1172,7 @@ void RoundVideoRecorder::prepareFrame(bool blurred) {
void RoundVideoRecorder::createImages() {
const auto ratio = style::DevicePixelRatio();
_framePlaceholder = QImage(
QSize(_side, _side) * ratio,
QImage::Format_ARGB32_Premultiplied);
_framePlaceholder.fill(Qt::transparent);
_framePlaceholder.setDevicePixelRatio(ratio);
auto p = QPainter(&_framePlaceholder);
auto hq = PainterHighQualityEnabler(p);
p.setPen(Qt::NoPen);
p.setBrush(Qt::black);
p.drawEllipse(0, 0, _side, _side);
preparePlaceholder(_descriptor.placeholder);
const auto side = _side + 2 * _extent;
_shadow = QImage(

4
Telegram/SourceFiles/ui/controls/round_video_recorder.h
View File

@@ -38,6 +38,7 @@ struct RoundVideoRecorderDescriptor {
Fn<void(not_null<RoundVideoRecorder*>)> hidden;
std::shared_ptr<tgcalls::VideoCaptureInterface> capturer;
std::shared_ptr<Webrtc::VideoTrack> track;
QImage placeholder;
};
struct RoundVideoResult {
@@ -62,6 +63,7 @@ public:
[[nodiscard]] int previewSize() const;
[[nodiscard]] Fn<void(Media::Capture::Chunk)> audioChunkProcessor();
[[nodiscard]] rpl::producer<QImage> placeholderUpdates() const;
void pause(Fn<void(RoundVideoResult)> done = nullptr);
void resume(RoundVideoPartial partial);
@@ -84,6 +86,7 @@ private:
void setup();
void prepareFrame(bool blurred = false);
void preparePlaceholder(const QImage &placeholder);
void createImages();
void progressTo(float64 progress);
void fade(bool visible);
@@ -100,6 +103,7 @@ private:
Ui::Animations::Simple _progressAnimation;
Ui::Animations::Simple _fadeAnimation;
Ui::Animations::Simple _fadeContentAnimation;
rpl::event_stream<QImage> _placeholderUpdates;
std::shared_ptr<Ui::DynamicImage> _silentPreview;
std::shared_ptr<Ui::DynamicImage> _soundedPreview;