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Code Issues Releases Wiki Activity

Support streaming speed changing.

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This commit is contained in:
John Preston
2019-02-21 20:01:55 +04:00
parent a7d9281768
commit 93c548c013
12 changed files with 296 additions and 116 deletions
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131
Telegram/SourceFiles/data/data_document.cpp
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@@ -295,6 +295,12 @@ void StartStreaming(
using namespace Media::Streaming;
if (auto loader = document->createStreamingLoader(origin)) {
static auto player = std::unique_ptr<Player>();
static auto pauseOnSeek = false;
static auto duration = crl::time(0);
static auto options = Media::Streaming::PlaybackOptions();
static auto subscribe = Fn<void()>();
static auto speed = 1.;
static auto step = pow(2., 1. / 12);
class Panel
#if defined Q_OS_MAC && !defined OS_MAC_OLD
@@ -319,68 +325,97 @@ void StartStreaming(
} else {
player->pause();
}
} else if (e->key() == Qt::Key_Plus) {
speed = std::min(speed * step, 2.);
player->setSpeed(speed);
} else if (e->key() == Qt::Key_Minus) {
speed = std::max(speed / step, 0.5);
player->setSpeed(speed);
}
}
void mousePressEvent(QMouseEvent *e) override {
pauseOnSeek = player->paused();
player->pause();
}
void mouseReleaseEvent(QMouseEvent *e) override {
options.position = std::clamp(
(duration * e->pos().x()) / width(),
crl::time(0),
crl::time(duration));
player->play(options);
subscribe();
}
};
static auto video = base::unique_qptr<Panel>();
subscribe = [] {
player->updates(
) | rpl::start_with_next_error_done([=](Update &&update) {
update.data.match([&](Information &update) {
duration = update.video.state.duration;
if (!video && !update.video.cover.isNull()) {
video = base::make_unique_q<Panel>();
video->setAttribute(Qt::WA_OpaquePaintEvent);
video->paintRequest(
) | rpl::start_with_next([=](QRect rect) {
if (player->ready()) {
Painter(video.get()).drawImage(
video->rect(),
player->frame(FrameRequest()));
} else {
Painter(video.get()).fillRect(
rect,
Qt::black);
}
}, video->lifetime());
const auto size = QSize(
ConvertScale(update.video.size.width()),
ConvertScale(update.video.size.height()));
const auto center = App::wnd()->geometry().center();
video->setGeometry(QRect(
center - QPoint(size.width(), size.height()) / 2,
size));
video->show();
video->shownValue(
) | rpl::start_with_next([=](bool shown) {
if (!shown) {
base::take(player) = nullptr;
}
}, video->lifetime());
}
}, [&](PreloadedVideo &update) {
}, [&](UpdateVideo &update) {
Expects(video != nullptr);
video->update();
}, [&](PreloadedAudio &update) {
}, [&](UpdateAudio &update) {
}, [&](WaitingForData &update) {
}, [&](MutedByOther &update) {
});
}, [=](const Error &error) {
base::take(video) = nullptr;
}, [=] {
}, player->lifetime());
};
player = std::make_unique<Player>(
&document->owner(),
std::move(loader));
video = nullptr;
document->session().lifetime().add([] {
base::take(player) = nullptr;
base::take(video) = nullptr;
player->lifetime().add([] {
base::take(video) = nullptr;
});
document->session().lifetime().add([] {
base::take(player) = nullptr;
});
auto options = Media::Streaming::PlaybackOptions();
options.speed = 1.7;
options.speed = speed;
//options.syncVideoByAudio = false;
options.position = (document->duration() / 2) * crl::time(1000);
options.position = 0;
player->play(options);
player->updates(
) | rpl::start_with_next_error_done([=](Update &&update) {
update.data.match([&](Information &update) {
if (!update.video.cover.isNull()) {
video = base::make_unique_q<Panel>();
video->setAttribute(Qt::WA_OpaquePaintEvent);
video->paintRequest(
) | rpl::start_with_next([=](QRect rect) {
Painter(video.get()).drawImage(
video->rect(),
player->frame(FrameRequest()));
}, video->lifetime());
const auto size = QSize(
ConvertScale(update.video.size.width()),
ConvertScale(update.video.size.height()));
const auto center = App::wnd()->geometry().center();
video->setGeometry(QRect(
center - QPoint(size.width(), size.height()) / 2,
size));
video->show();
video->shownValue(
) | rpl::start_with_next([=](bool shown) {
if (!shown) {
base::take(player) = nullptr;
}
}, video->lifetime());
}
}, [&](PreloadedVideo &update) {
}, [&](UpdateVideo &update) {
Expects(video != nullptr);
video->update();
}, [&](PreloadedAudio &update) {
}, [&](UpdateAudio &update) {
}, [&](WaitingForData &update) {
}, [&](MutedByOther &update) {
});
}, [=](const Error &error) {
base::take(video) = nullptr;
}, [=] {
base::take(video) = nullptr;
}, player->lifetime());
subscribe();
}
}