Support on-hover autoplay and position save.

Telegram/SourceFiles/core/local_url_handlers.cpp

@@ -61,6 +61,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "settings/settings_privacy_security.h"
 #include "settings/settings_chat.h"
 #include "settings/settings_premium.h"
+#include "storage/storage_account.h"
 #include "mainwidget.h"
 #include "main/main_account.h"
 #include "main/main_app_config.h"
@@ -782,8 +783,8 @@ bool OpenMediaTimestamp(
 	if (!controller) {
 		return false;
 	}
-	const auto time = match->captured(2).toInt();
+	const auto position = match->captured(2).toInt();
-	if (time < 0) {
+	if (position < 0) {
 		return false;
 	}
 	const auto base = match->captured(1);
@@ -796,7 +797,7 @@ bool OpenMediaTimestamp(
 		const auto session = &controller->session();
 		const auto document = session->data().document(documentId);
 		const auto context = session->data().message(itemId);
-		const auto timeMs = time * crl::time(1000);
+		const auto time = position * crl::time(1000);
 		if (document->isVideoFile()) {
 			controller->window().openInMediaView(Media::View::OpenRequest(
 				controller,
@@ -804,11 +805,9 @@ bool OpenMediaTimestamp(
 				context,
 				context ? context->topicRootId() : MsgId(0),
 				false,
-				timeMs));
+				time));
 		} else if (document->isSong() || document->isVoiceMessage()) {
-			session->settings().setMediaLastPlaybackPosition(
+			session->local().setMediaLastPlaybackPosition(documentId, time);
-				documentId,
-				timeMs);
 			Media::Player::instance()->play({ document, itemId });
 		}
 		return true;

Telegram/SourceFiles/history/view/media/history_view_gif.cpp

@@ -58,6 +58,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_file_origin.h"
 #include "data/data_document_media.h"
 #include "data/data_web_page.h"
+#include "storage/storage_account.h"
 #include "styles/style_chat.h"
 
 #include <QSvgRenderer>
@@ -406,11 +407,17 @@ bool Gif::downloadInCorner() const {
 		&& !_data->inappPlaybackFailed();
 }
 
+bool Gif::autoplayUnderCursor() const {
+	return (_videoTimestamp || _hasVideoCover);
+}
+
+bool Gif::underCursor() const {
+	return ClickHandler::getActive() == currentVideoLink();
+}
+
 bool Gif::autoplayEnabled() const {
 	if (_realParent->isSponsored()) {
 		return true;
-	} else if (_videoTimestamp || _hasVideoCover) {
-		return false;
 	}
 	return Data::AutoDownload::ShouldAutoPlay(
 		_data->session().settings().autoDownload(),
@@ -425,6 +432,8 @@ bool Gif::hideMessageText() const {
 void Gif::draw(Painter &p, const PaintContext &context) const {
 	if (width() < st::msgPadding.left() + st::msgPadding.right() + 1) return;
 
+	_smallGroupPart = false;
+
 	ensureDataMediaCreated();
 	const auto item = _parent->data();
 	const auto loaded = dataLoaded();
@@ -481,11 +490,14 @@ void Gif::draw(Painter &p, const PaintContext &context) const {
 		validateSpoilerImageCache(rthumb.size(), rounding);
 	}
 
-	const auto startPlay = autoplay
+	const auto canStartPlay = autoplay
 		&& !_streamed
 		&& !activeRoundPlaying
 		&& !fullHiddenBySpoiler;
-	if (startPlay) {
+	const auto shouldBePlaying = !autoplayUnderCursor() || underCursor();
+	if (!shouldBePlaying && _videoTimestamp != 0) {
+		const_cast<Gif*>(this)->stopAnimation();
+	} else if (canStartPlay) {
 		const_cast<Gif*>(this)->playAnimation(true);
 	} else {
 		checkStreamedIsStarted();
@@ -526,8 +538,9 @@ void Gif::draw(Painter &p, const PaintContext &context) const {
 
 	const auto skipDrawingContent = context.skipDrawingParts
 		== PaintContext::SkipDrawingParts::Content;
-	if (streamed && !skipDrawingContent && !fullHiddenBySpoiler) {
+	const auto drawStreamed = streamed && (shouldBePlaying || !_videoCover);
-		auto paused = context.paused;
+	if (drawStreamed && !skipDrawingContent && !fullHiddenBySpoiler) {
+		auto paused = context.paused || !shouldBePlaying;
 		auto request = ::Media::Streaming::FrameRequest{
 			.outer = QSize(usew, painth) * style::DevicePixelRatio(),
 			.blurredBackground = true,
@@ -594,8 +607,8 @@ void Gif::draw(Painter &p, const PaintContext &context) const {
 		ensureDataMediaCreated();
 		validateThumbCache({ usew, painth }, isRound, rounding);
 		p.drawImage(rthumb, _thumbCache);
-		paintTimestampMark(p, rthumb, rounding);
 	}
+	paintTimestampMark(p, rthumb, rounding);
 
 	if (revealed < 1.) {
 		p.setOpacity(1. - revealed);
@@ -885,7 +898,7 @@ void Gif::paintTimestampMark(
 		Painter &p,
 		QRect rthumb,
 		std::optional<Ui::BubbleRounding> rounding) const {
-	if (_videoTimestamp <= 0) {
+	if (_videoTimestamp <= 0 && _videoPosition < crl::time(200)) {
 		return;
 	}
 	const auto convert = [](Ui::BubbleCornerRounding rounding) {
@@ -902,15 +915,18 @@ void Gif::paintTimestampMark(
 		? convert(rounding->bottomRight)
 		: st::roundRadiusSmall;
 	const auto line = st::historyVideoTimestampProgressLine;
-	const auto duration = _data->duration() / 1000;
+	const auto duration = _data->duration();
+	const auto position = (_videoPosition > 0)
+		? _videoPosition
+		: (_videoTimestamp * crl::time(1000));
 	if (rthumb.height() <= line
 		|| rthumb.width() <= radiusl + radiusr
-		|| _videoTimestamp >= duration) {
+		|| position > duration) {
 		return;
 	}
 	auto hq = PainterHighQualityEnabler(p);
 	const auto used = rthumb.width() - radiusl - radiusr;
-	const auto progress = _videoTimestamp / float64(duration);
+	const auto progress = position / float64(duration);
 	const auto edge = radiusl + int(base::SafeRound(used * progress));
 	const auto top = rthumb.y() + rthumb.height() - line;
 	p.save();
@@ -1278,15 +1294,7 @@ TextState Gif::textState(QPoint point, StateRequest request) const {
 				: (isRound && _parent->data()->media()->ttlSeconds())
 				? _openl // Overriden.
 				: _spoiler->link)
-			: _data->uploading()
+			: currentVideoLink();
-			? _cancell
-			: _realParent->isSending()
-			? nullptr
-			: (dataLoaded() || _dataMedia->canBePlayed(_realParent))
-			? _openl
-			: _data->loading()
-			? _cancell
-			: _savel;
 	}
 	const auto checkBottomInfo = !inWebPage
 		&& (unwrapped || !bubble || isBubbleBottom());
@@ -1394,8 +1402,8 @@ void Gif::drawGrouped(
 		|| _data->displayLoading();
 	const auto st = context.st;
 	const auto sti = context.imageStyle();
-	const auto fullFeatured = fullFeaturedGrouped(sides);
+	_smallGroupPart = !fullFeaturedGrouped(sides);
-	const auto cornerDownload = fullFeatured && downloadInCorner();
+	const auto cornerDownload = !_smallGroupPart && downloadInCorner();
 	const auto canBePlayed = _dataMedia->canBePlayed(_realParent);
 
 	const auto revealed = _spoiler
@@ -1406,16 +1414,22 @@ void Gif::drawGrouped(
 		validateSpoilerImageCache(geometry.size(), rounding);
 	}
 
-	const auto autoplay = fullFeatured
+	const auto autoplay = !_smallGroupPart
 		&& autoplayEnabled()
 		&& canBePlayed
 		&& CanPlayInline(_data);
-	const auto startPlay = autoplay && !_streamed;
+	const auto canStartPlay = autoplay
-	if (startPlay) {
+		&& !_streamed
+		&& !fullHiddenBySpoiler;
+	const auto shouldBePlaying = !autoplayUnderCursor() || underCursor();
+	if (!shouldBePlaying && _videoTimestamp != 0) {
+		const_cast<Gif*>(this)->stopAnimation();
+	} else if (canStartPlay) {
 		const_cast<Gif*>(this)->playAnimation(true);
 	} else {
 		checkStreamedIsStarted();
 	}
+
 	const auto streamingMode = _streamed || autoplay;
 	const auto activeOwnPlaying = activeOwnStreamed();
 
@@ -1468,7 +1482,9 @@ void Gif::drawGrouped(
 				activeOwnPlaying->frozenStatusText = QString();
 			}
 			p.drawImage(geometry, streamed->frame(request));
-			if (!context.paused) {
+			const auto paused = context.paused
+				|| (autoplayUnderCursor() && !underCursor());
+			if (!paused) {
 				streamed->markFrameShown();
 			}
 		}
@@ -1583,7 +1599,7 @@ void Gif::drawGrouped(
 		}
 		p.setOpacity(1.);
 	}
-	if (fullFeatured) {
+	if (!_smallGroupPart) {
 		drawCornerStatus(p, context, geometry.topLeft());
 	}
 }
@@ -1596,8 +1612,7 @@ TextState Gif::getStateGrouped(
 	if (!geometry.contains(point)) {
 		return {};
 	}
-	const auto isFullFeaturedGrouped = fullFeaturedGrouped(sides);
+	if (!_smallGroupPart) {
-	if (isFullFeaturedGrouped) {
 		const auto state = cornerStatusTextState(
 			point,
 			request,
@@ -1607,20 +1622,27 @@ TextState Gif::getStateGrouped(
 		}
 	}
 	ensureDataMediaCreated();
+
 	auto link = (_spoiler && !_spoiler->revealed)
 		? (_sensitiveSpoiler ? spoilerTagLink() : _spoiler->link)
-		: _data->uploading()
+		: currentVideoLink();
+	return TextState(_parent, std::move(link));
+}
+
+ClickHandlerPtr Gif::currentVideoLink() const {
+	return _data->uploading()
 		? _cancell
 		: _realParent->isSending()
 		? nullptr
 		: dataLoaded()
 		? _openl
-		: (_data->loading() && !isFullFeaturedGrouped)
+		: (_data->loading() && _smallGroupPart)
 		? _cancell
 		: _dataMedia->canBePlayed(_realParent)
 		? _openl
+		: _data->loading()
+		? _cancell
 		: _savel;
-	return TextState(_parent, std::move(link));
 }
 
 void Gif::ensureDataMediaCreated() const {
@@ -1859,7 +1881,8 @@ void Gif::updateStatusText() const {
 	}
 	const auto round = activeRoundStreamed();
 	const auto own = activeOwnStreamed();
-	if (round || (own && own->frozenFrame.isNull() && _data->isVideoFile())) {
+	if (round || (own && _data->isVideoFile())) {
+		const auto frozen = !own->frozenFrame.isNull();
 		const auto streamed = round ? round : &own->instance;
 		const auto state = streamed->player().prepareLegacyState();
 		if (state.length) {
@@ -1869,9 +1892,17 @@ void Gif::updateStatusText() const {
 			} else if (!::Media::Player::IsStoppedOrStopping(state.state)) {
 				position = state.position;
 			}
-			statusSize = -1 - int((state.length - position) / state.frequency + 1);
+			if (!frozen) {
+				statusSize = -1 - int((state.length - position) / state.frequency + 1);
+			}
+			_videoPosition = std::max(
+				position * crl::time(1000) / state.frequency,
+				crl::time(1));
 		} else {
-			statusSize = -1 - (_data->duration() / 1000);
+			if (!frozen) {
+				statusSize = -1 - (_data->duration() / 1000);
+			}
+			_videoPosition = 0;
 		}
 	}
 	if (statusSize != _statusSize) {
@@ -2031,6 +2062,10 @@ void Gif::startStreamedPlayer() const {
 	//if (!_streamed->withSound) {
 	options.mode = ::Media::Streaming::Mode::Video;
 	options.loop = true;
+	options.position = _videoTimestamp
+		? (_videoTimestamp * crl::time(1000))
+		: _parent->history()->session().local().mediaLastPlaybackPosition(
+			_data->id);
 	//}
 	_streamed->instance.play(options);
 }
@@ -2038,10 +2073,12 @@ void Gif::startStreamedPlayer() const {
 void Gif::checkStreamedIsStarted() const {
 	if (!_streamed || _streamed->instance.playerLocked()) {
 		return;
-	} else if (_streamed->instance.paused()) {
-		_streamed->instance.resume();
 	}
-	if (!_streamed->instance.active() && !_streamed->instance.failed()) {
+	if (_streamed->instance.active()) {
+		if (_streamed->instance.paused()) {
+			_streamed->instance.resume();
+		}
+	} else if (!_streamed->instance.failed()) {
 		startStreamedPlayer();
 	}
 }
@@ -2054,6 +2091,7 @@ void Gif::setStreamed(std::unique_ptr<Streamed> value) {
 		history()->owner().registerHeavyViewPart(_parent);
 		togglePollingStory(true);
 	} else if (removed) {
+		_videoPosition = 0;
 		_parent->checkHeavyPart();
 	}
 }

Telegram/SourceFiles/history/view/media/history_view_gif.h

@@ -141,6 +141,8 @@ private:
 	void dataMediaCreated() const;
 
 	[[nodiscard]] bool autoplayEnabled() const;
+	[[nodiscard]] bool autoplayUnderCursor() const;
+	[[nodiscard]] bool underCursor() const;
 
 	void playAnimation(bool autoplay) override;
 	QSize countOptimalSize() override;
@@ -210,6 +212,7 @@ private:
 		QPoint point,
 		StateRequest request,
 		QPoint position) const;
+	[[nodiscard]] ClickHandlerPtr currentVideoLink() const;
 
 	void togglePollingStory(bool enabled) const;
 
@@ -228,12 +231,14 @@ private:
 	QString _downloadSize;
 	mutable QImage _thumbCache;
 	mutable QImage _roundingMask;
+	mutable crl::time _videoPosition = 0;
 	mutable TimeId _videoTimestamp = 0;
 	mutable std::optional<Ui::BubbleRounding> _thumbCacheRounding;
 	mutable bool _thumbCacheBlurred : 1 = false;
 	mutable bool _thumbIsEllipse : 1 = false;
 	mutable bool _pollingStory : 1 = false;
 	mutable bool _purchasedPriceTag : 1 = false;
+	mutable bool _smallGroupPart : 1 = false;
 	const bool _sensitiveSpoiler : 1 = false;
 	const bool _hasVideoCover : 1 = false;
 

Telegram/SourceFiles/main/main_session_settings.cpp

@@ -23,7 +23,6 @@ namespace {
 constexpr auto kLegacyCallsPeerToPeerNobody = 4;
 constexpr auto kVersionTag = -1;
 constexpr auto kVersion = 2;
-constexpr auto kMaxSavedPlaybackPositions = 16;
 
 } // namespace
 
@@ -38,8 +37,7 @@ QByteArray SessionSettings::serialize() const {
 		+ _groupStickersSectionHidden.size() * sizeof(quint64)
 		+ sizeof(qint32) * 4
 		+ Serialize::bytearraySize(autoDownload)
-		+ sizeof(qint32) * 5
+		+ sizeof(qint32) * 4
-		+ _mediaLastPlaybackPosition.size() * 2 * sizeof(quint64)
 		+ sizeof(qint32) * 5
 		+ sizeof(qint32)
 		+ (_mutePeriods.size() * sizeof(quint64))
@@ -71,11 +69,6 @@ QByteArray SessionSettings::serialize() const {
 			<< qint32(_archiveCollapsed.current() ? 1 : 0)
 			<< qint32(_archiveInMainMenu.current() ? 1 : 0)
 			<< qint32(_skipArchiveInSearch.current() ? 1 : 0)
-			<< qint32(_mediaLastPlaybackPosition.size());
-		for (const auto &[id, time] : _mediaLastPlaybackPosition) {
-			stream << quint64(id) << qint64(time);
-		}
-		stream
 			<< qint32(0) // very old _hiddenPinnedMessages.size());
 			<< qint32(_dialogsFiltersEnabled ? 1 : 0)
 			<< qint32(_supportAllSilent ? 1 : 0)
@@ -156,7 +149,6 @@ void SessionSettings::addFromSerialized(const QByteArray &serialized) {
 	qint32 appSuggestEmoji = app.suggestEmoji() ? 1 : 0;
 	qint32 appSuggestStickersByEmoji = app.suggestStickersByEmoji() ? 1 : 0;
 	qint32 appSpellcheckerEnabled = app.spellcheckerEnabled() ? 1 : 0;
-	std::vector<std::pair<DocumentId, crl::time>> mediaLastPlaybackPosition;
 	qint32 appVideoPlaybackSpeed = app.videoPlaybackSpeedSerialized();
 	QByteArray appVideoPipGeometry = app.videoPipGeometry();
 	std::vector<int> appDictionariesEnabled;
@@ -313,7 +305,7 @@ void SessionSettings::addFromSerialized(const QByteArray &serialized) {
 						"Bad data for SessionSettings::addFromSerialized()"));
 					return;
 				}
-				mediaLastPlaybackPosition.emplace_back(documentId, time);
+				// Old mediaLastPlaybackPosition.
 			}
 		}
 	}
@@ -486,7 +478,6 @@ void SessionSettings::addFromSerialized(const QByteArray &serialized) {
 	_archiveCollapsed = (archiveCollapsed == 1);
 	_archiveInMainMenu = (archiveInMainMenu == 1);
 	_skipArchiveInSearch = (skipArchiveInSearch == 1);
-	_mediaLastPlaybackPosition = std::move(mediaLastPlaybackPosition);
 	_hiddenPinnedMessages = std::move(hiddenPinnedMessages);
 	_dialogsFiltersEnabled = (dialogsFiltersEnabled == 1);
 	_supportAllSilent = (supportAllSilent == 1);
@@ -567,34 +558,6 @@ rpl::producer<bool> SessionSettings::supportAllSearchResultsValue() const {
 	return _supportAllSearchResults.value();
 }
 
-void SessionSettings::setMediaLastPlaybackPosition(DocumentId id, crl::time time) {
-	auto &map = _mediaLastPlaybackPosition;
-	const auto i = ranges::find(
-		map,
-		id,
-		&std::pair<DocumentId, crl::time>::first);
-	if (i != map.end()) {
-		if (time > 0) {
-			i->second = time;
-		} else {
-			map.erase(i);
-		}
-	} else if (time > 0) {
-		if (map.size() >= kMaxSavedPlaybackPositions) {
-			map.erase(map.begin());
-		}
-		map.emplace_back(id, time);
-	}
-}
-
-crl::time SessionSettings::mediaLastPlaybackPosition(DocumentId id) const {
-	const auto i = ranges::find(
-		_mediaLastPlaybackPosition,
-		id,
-		&std::pair<DocumentId, crl::time>::first);
-	return (i != _mediaLastPlaybackPosition.end()) ? i->second : 0;
-}
-
 void SessionSettings::setArchiveCollapsed(bool collapsed) {
 	_archiveCollapsed = collapsed;
 }

Telegram/SourceFiles/main/main_session_settings.h

@@ -85,9 +85,6 @@ public:
 		_groupEmojiSectionHidden.remove(peerId);
 	}
 
-	void setMediaLastPlaybackPosition(DocumentId id, crl::time time);
-	[[nodiscard]] crl::time mediaLastPlaybackPosition(DocumentId id) const;
-
 	[[nodiscard]] Data::AutoDownload::Full &autoDownload() {
 		return _autoDownload;
 	}
@@ -166,7 +163,6 @@ private:
 	rpl::variable<bool> _archiveCollapsed = false;
 	rpl::variable<bool> _archiveInMainMenu = false;
 	rpl::variable<bool> _skipArchiveInSearch = false;
-	std::vector<std::pair<DocumentId, crl::time>> _mediaLastPlaybackPosition;
 	base::flat_map<ThreadId, MsgId> _hiddenPinnedMessages;
 	bool _dialogsFiltersEnabled = false;
 	int _photoEditorHintShowsCount = 0;

Telegram/SourceFiles/media/player/media_player_instance.cpp

@@ -34,6 +34,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "main/main_account.h" // session->account().sessionChanges().
 #include "main/main_session_settings.h"
+#include "storage/storage_account.h"
 
 namespace Media {
 namespace Player {
@@ -50,7 +51,8 @@ constexpr auto kIdsPreloadAfter = 28;
 constexpr auto kShufflePlaylistLimit = 10'000;
 constexpr auto kRememberShuffledOrderItems = 16;
 
-constexpr auto kMinLengthForSavePosition = 20 * TimeId(60); // 20 minutes.
+constexpr auto kMinLengthForSavePositionVideo = TimeId(60); // 1 minute.
+constexpr auto kMinLengthForSavePositionMusic = 20 * TimeId(60); // 20.
 
 base::options::toggle OptionDisableAutoplayNext({
 	.id = kOptionDisableAutoplayNext,
@@ -108,18 +110,20 @@ void finish(not_null<Audio::Instance*> instance) {
 void SaveLastPlaybackPosition(
 		not_null<DocumentData*> document,
 		const TrackState &state) {
+	const auto limit = document->isVideoFile()
+		? kMinLengthForSavePositionVideo
+		: kMinLengthForSavePositionMusic;
 	const auto time = (state.position == kTimeUnknown
 		|| state.length == kTimeUnknown
 		|| state.state == State::PausedAtEnd
 		|| IsStopped(state.state))
 		? TimeId(0)
-		: (state.length >= kMinLengthForSavePosition * state.frequency)
+		: (state.length >= limit * state.frequency)
 		? (state.position / state.frequency) * crl::time(1000)
 		: TimeId(0);
 	auto &session = document->session();
-	if (session.settings().mediaLastPlaybackPosition(document->id) != time) {
+	if (session.local().mediaLastPlaybackPosition(document->id) != time) {
-		session.settings().setMediaLastPlaybackPosition(document->id, time);
+		session.local().setMediaLastPlaybackPosition(document->id, time);
-		session.saveSettingsDelayed();
 	}
 }
 
@@ -849,9 +853,9 @@ Streaming::PlaybackOptions Instance::streamingOptions(
 	if (position >= 0) {
 		result.position = position;
 	} else if (document) {
-		auto &settings = document->session().settings();
+		auto &local = document->session().local();
-		result.position = settings.mediaLastPlaybackPosition(document->id);
+		result.position = local.mediaLastPlaybackPosition(document->id);
-		settings.setMediaLastPlaybackPosition(document->id, 0);
+		local.setMediaLastPlaybackPosition(document->id, 0);
 	} else {
 		result.position = 0;
 	}

Telegram/SourceFiles/storage/storage_account.cpp

@@ -47,6 +47,7 @@ using Database = Cache::Database;
 
 constexpr auto kDelayedWriteTimeout = crl::time(1000);
 constexpr auto kWriteSearchSuggestionsDelay = 5 * crl::time(1000);
+constexpr auto kMaxSavedPlaybackPositions = 256;
 
 constexpr auto kStickersVersionTag = quint32(-1);
 constexpr auto kStickersSerializeVersion = 4;
@@ -96,6 +97,7 @@ enum { // Local Storage Keys
 	lskWebviewTokens = 0x19, // data: QByteArray bots, QByteArray other
 	lskRoundPlaceholder = 0x1a, // no data
 	lskInlineBotsDownloads = 0x1b, // no data
+	lskMediaLastPlaybackPositions = 0x1c, // no data
 };
 
 auto EmptyMessageDraftSources()
@@ -228,6 +230,7 @@ base::flat_set<QString> Account::collectGoodNames() const {
 		_searchSuggestionsKey,
 		_roundPlaceholderKey,
 		_inlineBotsDownloadsKey,
+		_mediaLastPlaybackPositionsKey,
 	};
 	auto result = base::flat_set<QString>{
 		"map0",
@@ -316,6 +319,7 @@ Account::ReadMapResult Account::readMapWith(
 	quint64 searchSuggestionsKey = 0;
 	quint64 roundPlaceholderKey = 0;
 	quint64 inlineBotsDownloadsKey = 0;
+	quint64 mediaLastPlaybackPositionsKey = 0;
 	QByteArray webviewStorageTokenBots, webviewStorageTokenOther;
 	while (!map.stream.atEnd()) {
 		quint32 keyType;
@@ -431,6 +435,9 @@ Account::ReadMapResult Account::readMapWith(
 		case lskInlineBotsDownloads: {
 			map.stream >> inlineBotsDownloadsKey;
 		} break;
+		case lskMediaLastPlaybackPositions: {
+			map.stream >> mediaLastPlaybackPositionsKey;
+		} break;
 		case lskWebviewTokens: {
 			map.stream
 				>> webviewStorageTokenBots
@@ -474,6 +481,7 @@ Account::ReadMapResult Account::readMapWith(
 	_searchSuggestionsKey = searchSuggestionsKey;
 	_roundPlaceholderKey = roundPlaceholderKey;
 	_inlineBotsDownloadsKey = inlineBotsDownloadsKey;
+	_mediaLastPlaybackPositionsKey = mediaLastPlaybackPositionsKey;
 	_oldMapVersion = mapData.version;
 	_webviewStorageIdBots.token = webviewStorageTokenBots;
 	_webviewStorageIdOther.token = webviewStorageTokenOther;
@@ -590,6 +598,7 @@ void Account::writeMap() {
 	}
 	if (_roundPlaceholderKey) mapSize += sizeof(quint32) + sizeof(quint64);
 	if (_inlineBotsDownloadsKey) mapSize += sizeof(quint32) + sizeof(quint64);
+	if (_mediaLastPlaybackPositionsKey) mapSize += sizeof(quint32) + sizeof(quint64);
 
 	EncryptedDescriptor mapData(mapSize);
 	if (!self.isEmpty()) {
@@ -668,6 +677,10 @@ void Account::writeMap() {
 		mapData.stream << quint32(lskInlineBotsDownloads);
 		mapData.stream << quint64(_inlineBotsDownloadsKey);
 	}
+	if (_mediaLastPlaybackPositionsKey) {
+		mapData.stream << quint32(lskMediaLastPlaybackPositions);
+		mapData.stream << quint64(_mediaLastPlaybackPositionsKey);
+	}
 	map.writeEncrypted(mapData, _localKey);
 
 	_mapChanged = false;
@@ -699,6 +712,7 @@ void Account::reset() {
 	_searchSuggestionsKey = 0;
 	_roundPlaceholderKey = 0;
 	_inlineBotsDownloadsKey = 0;
+	_mediaLastPlaybackPositionsKey = 0;
 	_oldMapVersion = 0;
 	_fileLocations.clear();
 	_fileLocationPairs.clear();
@@ -709,6 +723,7 @@ void Account::reset() {
 	_cacheTotalTimeLimit = Database::Settings().totalTimeLimit;
 	_cacheBigFileTotalSizeLimit = Database::Settings().totalSizeLimit;
 	_cacheBigFileTotalTimeLimit = Database::Settings().totalTimeLimit;
+	_mediaLastPlaybackPosition.clear();
 
 	const auto wvbots = _webviewStorageIdBots.path;
 	const auto wvother = _webviewStorageIdOther.path;
@@ -2943,6 +2958,96 @@ Export::Settings Account::readExportSettings() {
 		: Export::Settings();
 }
 
+void Account::setMediaLastPlaybackPosition(DocumentId id, crl::time time) {
+	auto &map = _mediaLastPlaybackPosition;
+	const auto i = ranges::find(
+		map,
+		id,
+		&std::pair<DocumentId, crl::time>::first);
+	if (i != map.end()) {
+		if (time > 0) {
+			if (i->second == time) {
+				return;
+			}
+			i->second = time;
+			std::rotate(i, i + 1, map.end());
+		} else {
+			map.erase(i);
+		}
+	} else if (time > 0) {
+		if (map.size() >= kMaxSavedPlaybackPositions) {
+			map.erase(map.begin());
+		}
+		map.emplace_back(id, time);
+	}
+	writeMediaLastPlaybackPositions();
+}
+
+crl::time Account::mediaLastPlaybackPosition(DocumentId id) const {
+	const_cast<Account*>(this)->readMediaLastPlaybackPositions();
+	const auto i = ranges::find(
+		_mediaLastPlaybackPosition,
+		id,
+		&std::pair<DocumentId, crl::time>::first);
+	return (i != _mediaLastPlaybackPosition.end()) ? i->second : 0;
+}
+
+void Account::writeMediaLastPlaybackPositions() {
+	if (_mediaLastPlaybackPosition.empty()) {
+		if (_mediaLastPlaybackPositionsKey) {
+			ClearKey(_mediaLastPlaybackPositionsKey, _basePath);
+			_mediaLastPlaybackPositionsKey = 0;
+			writeMapDelayed();
+		}
+		return;
+	}
+	if (!_mediaLastPlaybackPositionsKey) {
+		_mediaLastPlaybackPositionsKey = GenerateKey(_basePath);
+		writeMapQueued();
+	}
+	quint32 size = sizeof(quint32)
+		+ _mediaLastPlaybackPosition.size() * sizeof(quint64) * 2;
+	EncryptedDescriptor data(size);
+	data.stream << quint32(_mediaLastPlaybackPosition.size());
+	for (const auto &[id, time] : _mediaLastPlaybackPosition) {
+		data.stream << quint64(id) << qint64(time);
+	}
+
+	FileWriteDescriptor file(_mediaLastPlaybackPositionsKey, _basePath);
+	file.writeEncrypted(data, _localKey);
+}
+
+void Account::readMediaLastPlaybackPositions() {
+	if (_mediaLastPlaybackPositionsRead) {
+		return;
+	}
+	_mediaLastPlaybackPositionsRead = true;
+	if (!_mediaLastPlaybackPositionsKey) {
+		return;
+	}
+
+	FileReadDescriptor file;
+	if (!ReadEncryptedFile(
+			file,
+			_mediaLastPlaybackPositionsKey,
+			_basePath,
+			_localKey)) {
+		ClearKey(_mediaLastPlaybackPositionsKey, _basePath);
+		_mediaLastPlaybackPositionsKey = 0;
+		writeMapDelayed();
+		return;
+	}
+
+	quint32 size = 0;
+	file.stream >> size;
+	for (auto i = 0; i < size; ++i) {
+		quint64 id = 0;
+		qint64 time = 0;
+		file.stream >> id >> time;
+		_mediaLastPlaybackPosition.emplace_back(DocumentId(id), time);
+	}
+}
+
 void Account::writeSearchSuggestionsDelayed() {
 	Expects(_owner->sessionExists());
 

Telegram/SourceFiles/storage/storage_account.h

@@ -150,6 +150,9 @@ public:
 	void writeExportSettings(const Export::Settings &settings);
 	[[nodiscard]] Export::Settings readExportSettings();
 
+	void setMediaLastPlaybackPosition(DocumentId id, crl::time time);
+	[[nodiscard]] crl::time mediaLastPlaybackPosition(DocumentId id) const;
+
 	void writeSearchSuggestionsDelayed();
 	void writeSearchSuggestionsIfNeeded();
 	void writeSearchSuggestions();
@@ -261,6 +264,9 @@ private:
 	void readTrustedBots();
 	void writeTrustedBots();
 
+	void readMediaLastPlaybackPositions();
+	void writeMediaLastPlaybackPositions();
+
 	std::optional<RecentHashtagPack> saveRecentHashtags(
 		Fn<RecentHashtagPack()> getPack,
 		const QString &text);
@@ -311,6 +317,7 @@ private:
 	FileKey _searchSuggestionsKey = 0;
 	FileKey _roundPlaceholderKey = 0;
 	FileKey _inlineBotsDownloadsKey = 0;
+	FileKey _mediaLastPlaybackPositionsKey = 0;
 
 	qint64 _cacheTotalSizeLimit = 0;
 	qint64 _cacheBigFileTotalSizeLimit = 0;
@@ -323,6 +330,9 @@ private:
 	bool _recentHashtagsAndBotsWereRead = false;
 	bool _searchSuggestionsRead = false;
 	bool _inlineBotsDownloadsRead = false;
+	bool _mediaLastPlaybackPositionsRead = false;
+
+	std::vector<std::pair<DocumentId, crl::time>> _mediaLastPlaybackPosition;
 
 	Webview::StorageId _webviewStorageIdBots;
 	Webview::StorageId _webviewStorageIdOther;

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -89,6 +89,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "support/support_helper.h"
 #include "storage/file_upload.h"
 #include "storage/download_manager_mtproto.h"
+#include "storage/storage_account.h"
 #include "window/themes/window_theme.h"
 #include "window/window_peer_menu.h"
 #include "window/window_session_controller_link_info.h"
@@ -2789,13 +2790,18 @@ void SessionController::openDocument(
 	} else if (showInMediaView) {
 		using namespace Media::View;
 		const auto timestamp = item ? ExtractVideoTimestamp(item) : 0;
+		const auto usedTimestamp = videoTimestampOverride
+			? ((*videoTimestampOverride) * crl::time(1000))
+			: timestamp
+			? (timestamp * crl::time(1000))
+			: session().local().mediaLastPlaybackPosition(document->id);
 		_window->openInMediaView(OpenRequest(
 			this,
 			document,
 			item,
 			message.topicRootId,
 			false,
-			videoTimestampOverride.value_or(timestamp) * crl::time(1000)));
+			usedTimestamp));
 		return;
 	}
 	Data::ResolveDocument(this, document, item, message.topicRootId);