Init webm player for sticker set thumbnails.

Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp

@@ -38,6 +38,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_session_controller.h" // GifPauseReason.
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
+#include "media/clip/media_clip_reader.h"
 #include "apiwrap.h"
 #include "api/api_toggling_media.h" // Api::ToggleFavedSticker
 #include "styles/style_chat_helpers.h"
@@ -97,6 +98,7 @@ struct StickerIcon {
 	uint64 setId = 0;
 	StickersSet *set = nullptr;
 	mutable std::unique_ptr<Lottie::SinglePlayer> lottie;
+	mutable Media::Clip::ReaderPointer webm;
 	mutable QPixmap savedFrame;
 	DocumentData *sticker = nullptr;
 	ChannelData *megagroup = nullptr;
@@ -157,6 +159,8 @@ private:
 		int newSelected,
 		ValidateIconAnimations animations);
 	void validateIconLottieAnimation(const StickerIcon &icon);
+	void validateIconWebmAnimation(const StickerIcon &icon);
+	void validateIconAnimation(const StickerIcon &icon);
 
 	void refreshIconsGeometry(ValidateIconAnimations animations);
 	void updateSelected();
@@ -792,6 +796,7 @@ void StickersListWidget::Footer::validateIconLottieAnimation(
 	if (icon.lottie
 		|| !icon.sticker
 		|| !HasLottieThumbnail(
+			icon.set ? icon.set->flags : Data::StickersSetFlags(),
 			icon.thumbnailMedia.get(),
 			icon.stickerMedia.get())) {
 		return;
@@ -817,6 +822,30 @@ void StickersListWidget::Footer::validateIconLottieAnimation(
 	}, icon.lifetime);
 }
 
+void StickersListWidget::Footer::validateIconWebmAnimation(
+		const StickerIcon &icon) {
+	icon.ensureMediaCreated();
+	if (icon.webm
+		|| !icon.sticker
+		|| !HasWebmThumbnail(
+			icon.set ? icon.set->flags : Data::StickersSetFlags(),
+			icon.thumbnailMedia.get(),
+			icon.stickerMedia.get())) {
+		return;
+	}
+	const auto id = icon.setId;
+	icon.webm = WebmThumbnail(
+		icon.thumbnailMedia.get(),
+		icon.stickerMedia.get(),
+		[=](Media::Clip::Notification) { updateSetIcon(id); });
+}
+
+void StickersListWidget::Footer::validateIconAnimation(
+		const StickerIcon &icon) {
+	validateIconWebmAnimation(icon);
+	validateIconLottieAnimation(icon);
+}
+
 void StickersListWidget::Footer::updateSetIcon(uint64 setId) {
 	enumerateVisibleIcons([&](const StickerIcon &icon, int x) {
 		if (icon.setId != setId) {
@@ -832,7 +861,7 @@ void StickersListWidget::Footer::paintSetIcon(
 		int x) const {
 	if (icon.sticker) {
 		icon.ensureMediaCreated();
-		const_cast<Footer*>(this)->validateIconLottieAnimation(icon);
+		const_cast<Footer*>(this)->validateIconAnimation(icon);
 		const auto origin = icon.sticker->stickerSetOrigin();
 		const auto thumb = icon.thumbnailMedia
 			? icon.thumbnailMedia->image()

Telegram/SourceFiles/chat_helpers/stickers_lottie.cpp

@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_session.h"
 #include "data/data_file_origin.h"
 #include "storage/cache/storage_cache_database.h"
+#include "media/clip/media_clip_reader.h"
 #include "ui/effects/path_shift_gradient.h"
 #include "main/main_session.h"
 
@@ -130,10 +131,12 @@ not_null<Lottie::Animation*> LottieAnimationFromDocument(
 }
 
 bool HasLottieThumbnail(
+		Data::StickersSetFlags flags,
 		Data::StickersSetThumbnailView *thumb,
 		Data::DocumentMedia *media) {
 	if (thumb) {
-		return !thumb->content().isEmpty();
+		return !(flags & Data::StickersSetFlag::Webm)
+			&& !thumb->content().isEmpty();
 	} else if (!media) {
 		return false;
 	}
@@ -189,6 +192,44 @@ std::unique_ptr<Lottie::SinglePlayer> LottieThumbnail(
 		box);
 }
 
+bool HasWebmThumbnail(
+		Data::StickersSetFlags flags,
+		Data::StickersSetThumbnailView *thumb,
+		Data::DocumentMedia *media) {
+	if (thumb) {
+		return (flags & Data::StickersSetFlag::Webm)
+			&& !thumb->content().isEmpty();
+	} else if (!media) {
+		return false;
+	}
+	const auto document = media->owner();
+	if (const auto info = document->sticker()) {
+		if (!info->isWebm()) {
+			return false;
+		}
+		media->automaticLoad(document->stickerSetOrigin(), nullptr);
+		if (!media->loaded()) {
+			return false;
+		}
+		return document->bigFileBaseCacheKey().valid();
+	}
+	return false;
+}
+
+Media::Clip::ReaderPointer WebmThumbnail(
+		Data::StickersSetThumbnailView *thumb,
+		Data::DocumentMedia *media,
+		Fn<void(Media::Clip::Notification)> callback) {
+	return thumb
+		? ::Media::Clip::MakeReader(
+			thumb->content(),
+			std::move(callback))
+		: ::Media::Clip::MakeReader(
+			media->owner()->location(),
+			media->bytes(),
+			std::move(callback));
+}
+
 bool PaintStickerThumbnailPath(
 		QPainter &p,
 		not_null<Data::DocumentMedia*> media,

Telegram/SourceFiles/chat_helpers/stickers_lottie.h

@@ -7,12 +7,22 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+namespace base {
+template <typename Enum>
+class Flags;
+} // namespace base
+
 namespace Storage {
 namespace Cache {
 struct Key;
 } // namespace Cache
 } // namespace Storage
 
+namespace Media::Clip {
+class ReaderPointer;
+enum class Notification;
+} // namespace Media::Clip
+
 namespace Lottie {
 class SinglePlayer;
 class MultiPlayer;
@@ -33,6 +43,8 @@ class PathShiftGradient;
 namespace Data {
 class DocumentMedia;
 class StickersSetThumbnailView;
+enum class StickersSetFlag;
+using StickersSetFlags = base::flags<StickersSetFlag>;
 } // namespace Data
 
 namespace ChatHelpers {
@@ -70,6 +82,7 @@ enum class StickerLottieSize : uchar {
 	QSize box);
 
 [[nodiscard]] bool HasLottieThumbnail(
+	Data::StickersSetFlags flags,
 	Data::StickersSetThumbnailView *thumb,
 	Data::DocumentMedia *media);
 [[nodiscard]] std::unique_ptr<Lottie::SinglePlayer> LottieThumbnail(
@@ -79,6 +92,15 @@ enum class StickerLottieSize : uchar {
 	QSize box,
 	std::shared_ptr<Lottie::FrameRenderer> renderer = nullptr);
 
+[[nodiscard]] bool HasWebmThumbnail(
+	Data::StickersSetFlags flags,
+	Data::StickersSetThumbnailView *thumb,
+	Data::DocumentMedia *media);
+[[nodiscard]] Media::Clip::ReaderPointer WebmThumbnail(
+	Data::StickersSetThumbnailView *thumb,
+	Data::DocumentMedia *media,
+	Fn<void(Media::Clip::Notification)> callback);
+
 bool PaintStickerThumbnailPath(
 	QPainter &p,
 	not_null<Data::DocumentMedia*> media,