Migrate from YYImage to SDWebImage

2025-12-05 01:10:41 +00:00 · 2025-09-10 21:39:41 -05:00
parent 2b763d5f26
commit 1761235f88
23 changed files with 88 additions and 103 deletions
--- a/Signal.xcodeproj/project.pbxproj
+++ b/Signal.xcodeproj/project.pbxproj
@@ -1002,7 +1002,7 @@
 		667DEE672BC7342900EFF32D /* AttachmentReferenceId.swift in Sources */ = {isa = PBXBuildFile; fileRef = 667DEE662BC7342900EFF32D /* AttachmentReferenceId.swift */; };
 		667DEE6B2BC7603C00EFF32D /* DatedAttachmentReferenceId.swift in Sources */ = {isa = PBXBuildFile; fileRef = 667DEE6A2BC7603C00EFF32D /* DatedAttachmentReferenceId.swift */; };
 		667E90D028E799D1005FE603 /* ConnectionsEducationSheetViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 667E90CF28E799D1005FE603 /* ConnectionsEducationSheetViewController.swift */; };
-		667EDE6428F8D6B7001FB487 /* YYAnimatedImage+Duration.swift in Sources */ = {isa = PBXBuildFile; fileRef = 667EDE6328F8D6B7001FB487 /* YYAnimatedImage+Duration.swift */; };
+		667EDE6428F8D6B7001FB487 /* SDAnimatedImage+Duration.swift in Sources */ = {isa = PBXBuildFile; fileRef = 667EDE6328F8D6B7001FB487 /* SDAnimatedImage+Duration.swift */; };
 		667EDE6628FA0372001FB487 /* StoryBadgeCountManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 667EDE6528FA0372001FB487 /* StoryBadgeCountManager.swift */; };
 		6681AB652B7AE53B0099D187 /* PreloadedTextAttachment.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6681AB642B7AE53B0099D187 /* PreloadedTextAttachment.swift */; };
 		668345502DCA9BEE00566AB3 /* BackupAttachmentUploadProgress.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6683454F2DCA9BE700566AB3 /* BackupAttachmentUploadProgress.swift */; };
@@ -1058,7 +1058,7 @@
 		668B5BFA2C7E420E0018CF36 /* BackupArchiveChatStyleArchiver.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668B5BF92C7E420E0018CF36 /* BackupArchiveChatStyleArchiver.swift */; };
 		668B5BFC2C7E46D30018CF36 /* PaletteChatColor+Constants.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668B5BFB2C7E46D30018CF36 /* PaletteChatColor+Constants.swift */; };
 		668CAB3E289983520085A2C3 /* AudioMessagePlaybackRateView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668CAB3D289983520085A2C3 /* AudioMessagePlaybackRateView.swift */; };
-		668E403C2BE43752004B6730 /* YYImage+Attachment.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668E403B2BE43752004B6730 /* YYImage+Attachment.swift */; };
+		668E403C2BE43752004B6730 /* SDAnimatedImage+Attachment.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668E403B2BE43752004B6730 /* SDAnimatedImage+Attachment.swift */; };
 		668FE09B28B923A4008B9071 /* Bool+SSK.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668FE09A28B923A4008B9071 /* Bool+SSK.swift */; };
 		668FE09F28B947ED008B9071 /* StoryContextMenuGenerator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 668FE09E28B947ED008B9071 /* StoryContextMenuGenerator.swift */; };
 		6691E7EF2996E8FB0032A68A /* TSRequestOWSURLSessionMock.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6691E7EE2996E8FB0032A68A /* TSRequestOWSURLSessionMock.swift */; };
@@ -4950,7 +4950,7 @@
 		667DEE662BC7342900EFF32D /* AttachmentReferenceId.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AttachmentReferenceId.swift; sourceTree = "<group>"; };
 		667DEE6A2BC7603C00EFF32D /* DatedAttachmentReferenceId.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DatedAttachmentReferenceId.swift; sourceTree = "<group>"; };
 		667E90CF28E799D1005FE603 /* ConnectionsEducationSheetViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ConnectionsEducationSheetViewController.swift; sourceTree = "<group>"; };
-		667EDE6328F8D6B7001FB487 /* YYAnimatedImage+Duration.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "YYAnimatedImage+Duration.swift"; sourceTree = "<group>"; };
+		667EDE6328F8D6B7001FB487 /* SDAnimatedImage+Duration.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "SDAnimatedImage+Duration.swift"; sourceTree = "<group>"; };
 		667EDE6528FA0372001FB487 /* StoryBadgeCountManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StoryBadgeCountManager.swift; sourceTree = "<group>"; };
 		6681AB642B7AE53B0099D187 /* PreloadedTextAttachment.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PreloadedTextAttachment.swift; sourceTree = "<group>"; };
 		6683454F2DCA9BE700566AB3 /* BackupAttachmentUploadProgress.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BackupAttachmentUploadProgress.swift; sourceTree = "<group>"; };
@@ -5007,7 +5007,7 @@
 		668B5BF92C7E420E0018CF36 /* BackupArchiveChatStyleArchiver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BackupArchiveChatStyleArchiver.swift; sourceTree = "<group>"; };
 		668B5BFB2C7E46D30018CF36 /* PaletteChatColor+Constants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "PaletteChatColor+Constants.swift"; sourceTree = "<group>"; };
 		668CAB3D289983520085A2C3 /* AudioMessagePlaybackRateView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AudioMessagePlaybackRateView.swift; sourceTree = "<group>"; };
-		668E403B2BE43752004B6730 /* YYImage+Attachment.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "YYImage+Attachment.swift"; sourceTree = "<group>"; };
+		668E403B2BE43752004B6730 /* SDAnimatedImage+Attachment.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "SDAnimatedImage+Attachment.swift"; sourceTree = "<group>"; };
 		668FE09A28B923A4008B9071 /* Bool+SSK.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Bool+SSK.swift"; sourceTree = "<group>"; };
 		668FE09E28B947ED008B9071 /* StoryContextMenuGenerator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StoryContextMenuGenerator.swift; sourceTree = "<group>"; };
 		6691E7EE2996E8FB0032A68A /* TSRequestOWSURLSessionMock.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TSRequestOWSURLSessionMock.swift; sourceTree = "<group>"; };
@@ -9558,8 +9558,8 @@
 			isa = PBXGroup;
 			children = (
 				6649651B2BDC6EAD00E2DE98 /* AVAsset+Attachment.swift */,
+				668E403B2BE43752004B6730 /* SDAnimatedImage+Attachment.swift */,
 				6649651D2BDF169F00E2DE98 /* UIImage+Attachment.swift */,
-				668E403B2BE43752004B6730 /* YYImage+Attachment.swift */,
 			);
 			path = Playback;
 			sourceTree = "<group>";
@@ -10552,12 +10552,12 @@
 				888CC15828E3CE8100A13493 /* ProxyConnectionChecker.swift */,
 				66A22C0828A18D49007CD4F5 /* RingerSwitch.swift */,
 				7677E41229F84C2100AC6A75 /* ScreenLockUI.swift */,
+				667EDE6328F8D6B7001FB487 /* SDAnimatedImage+Duration.swift */,
 				8822558C26B9D1D7001A33C4 /* SignalDotMePhoneNumberLink.swift */,
 				6675F64E29261C39007A311E /* SyncPushTokensJob.swift */,
 				4521C3BF1F59F3BA00B4C582 /* TextHelper.swift */,
 				660248EF2BBCD29D009E2956 /* TSMessage+RenderableContent.swift */,
 				8811CF832295D8DA00FF6549 /* VolumeButtons.swift */,
-				667EDE6328F8D6B7001FB487 /* YYAnimatedImage+Duration.swift */,
 			);
 			path = util;
 			sourceTree = "<group>";
@@ -17417,6 +17417,7 @@
 				D9E43C2C2CC194140001536E /* RTCIceServerFetcher.swift in Sources */,
 				C1D9B1552B7FA28200D94595 /* SafetyTipsViewController.swift in Sources */,
 				7677E41329F84C2100AC6A75 /* ScreenLockUI.swift in Sources */,
+				667EDE6428F8D6B7001FB487 /* SDAnimatedImage+Duration.swift in Sources */,
 				45069FCE29D64CB300D0DD14 /* SelectionButton.swift in Sources */,
 				88C659B024688335002AC115 /* SelfSignedIdentity.swift in Sources */,
 				4C4AE6A1224AF35700D4AF6F /* SendMediaNavigationController.swift in Sources */,
@@ -17521,7 +17522,6 @@
 				45069FC629D3A7C800D0DD14 /* WideMediaTileViewLayout.swift in Sources */,
 				45906C6B29D238560025906D /* WidePhotoCell.swift in Sources */,
 				76616C9D2A266A05005F7001 /* WindowManager.swift in Sources */,
-				667EDE6428F8D6B7001FB487 /* YYAnimatedImage+Duration.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -18492,6 +18492,7 @@
 				668A01332C2B6088007B8808 /* Scheduler.swift in Sources */,
 				72C905912B9ACA3D00E586B8 /* ScreenLock.swift in Sources */,
 				7255A4D22B98E2B700E95368 /* ScrubbingLogFormatter.swift in Sources */,
+				668E403C2BE43752004B6730 /* SDAnimatedImage+Attachment.swift in Sources */,
 				F9C5CDEE289453B400548EEE /* SDS+Enums.swift in Sources */,
 				D9F6553229D6531D002A330A /* SDSCodableModel+ColumnName.swift in Sources */,
 				D9F6554229D67708002A330A /* SDSCodableModel+SDSSerialization.swift in Sources */,
@@ -18825,7 +18826,6 @@
 				F9C5CCA2289453B300548EEE /* WebSocketResources.pb.swift in Sources */,
 				66533E3729B7B56000E8D928 /* WhoAmIManager.swift in Sources */,
 				72454E802C9BCEA80084B483 /* YDBStorage.swift in Sources */,
-				668E403C2BE43752004B6730 /* YYImage+Attachment.swift in Sources */,
 				724D47B02B97BE13001BE973 /* ZkParamsMigrator.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
--- a/Signal/ConversationView/CellViews/ReusableMediaView.swift
+++ b/Signal/ConversationView/CellViews/ReusableMediaView.swift
@@ -5,7 +5,7 @@

 public import SignalServiceKit
 import SignalUI
-import YYImage
+import SDWebImage

 // MARK: -

@@ -320,7 +320,7 @@ class MediaViewAdapterAnimated: MediaViewAdapter {
        guard attachmentStream.contentType.isAnimatedImage else {
            throw ReusableMediaError.invalidMedia
        }
-        guard let animatedImage = try? attachmentStream.decryptedYYImage() else {
+        guard let animatedImage = try? attachmentStream.decryptedSDAnimatedImage() else {
            throw OWSAssertionError("Invalid animated image.")
        }
        return animatedImage
@@ -329,7 +329,7 @@ class MediaViewAdapterAnimated: MediaViewAdapter {
    func applyMedia(_ media: AnyObject) {
        AssertIsOnMainThread()

-        guard let image = media as? YYImage else {
+        guard let image = media as? SDAnimatedImage else {
            owsFailDebug("Media has unexpected type: \(type(of: media))")
            return
        }
@@ -544,7 +544,7 @@ public class MediaViewAdapterSticker: MediaViewAdapter {
            throw ReusableMediaError.invalidMedia
        }
        if shouldBeRenderedByYY {
-            guard let animatedImage = try? attachmentStream.decryptedYYImage() else {
+            guard let animatedImage = try? attachmentStream.decryptedSDAnimatedImage() else {
                throw OWSAssertionError("Invalid animated image.")
            }
            return animatedImage
@@ -560,7 +560,7 @@ public class MediaViewAdapterSticker: MediaViewAdapter {
        AssertIsOnMainThread()

        if shouldBeRenderedByYY {
-            guard let image = media as? YYImage else {
+            guard let image = media as? SDAnimatedImage else {
                owsFailDebug("Media has unexpected type: \(type(of: media))")
                return
            }
--- a/Signal/Sharing/AttachmentSharing.swift
+++ b/Signal/Sharing/AttachmentSharing.swift
@@ -4,7 +4,6 @@
 //

 public import SignalServiceKit
-public import YYImage

 public class AttachmentSharing {

@@ -284,10 +283,3 @@ public class ShareableAttachment: NSObject, UIActivityItemSource {
        }
    }
 }
-
-// YYImage does not specify that the sublcass still supports secure coding,
-// this is required for anything that subclasses a class that supports secure
-// coding. We do so here, otherwise copy / save will not work for YYImages
-extension YYImage {
-    open class override var supportsSecureCoding: Bool { true }
-}
--- a/Signal/src/ViewControllers/GifPicker/GifPickerCell.swift
+++ b/Signal/src/ViewControllers/GifPicker/GifPickerCell.swift
@@ -5,11 +5,11 @@

 import SignalServiceKit
 import SignalUI
-import YYImage
+import SDWebImage

 class GifPickerCell: UICollectionViewCell {

-    private let imageView = YYAnimatedImageView()
+    private let imageView = SDAnimatedImageView()
    private let mp4View = LoopingVideoView()
    private let activityIndicator: UIActivityIndicatorView = {
        let view = UIActivityIndicatorView(style: .medium)
@@ -197,8 +197,10 @@ class GifPickerCell: UICollectionViewCell {
           let video = LoopingVideo(decryptedLocalFileUrl: URL(fileURLWithPath: asset.filePath)) {
            mp4View.video = video
            mp4View.isHidden = false
-        } else if Data.ows_isValidImage(atPath: asset.filePath, mimeType: MimeType.imageGif.rawValue),
-                  let image = YYImage(contentsOfFile: asset.filePath) {
+        } else if
+            Data.ows_isValidImage(atPath: asset.filePath, mimeType: MimeType.imageGif.rawValue),
+            let image = SDAnimatedImage(contentsOfFile: asset.filePath)
+        {
            imageView.image = image
            imageView.isHidden = false
        } else if Data.ows_isValidImage(atPath: asset.filePath, mimeType: MimeType.imageJpeg.rawValue),
--- a/Signal/src/ViewControllers/HomeView/Stories/Context
+++ b/Signal/src/ViewControllers/HomeView/Stories/Context
@@ -9,7 +9,7 @@ import SafariServices
 import SignalServiceKit
 import SignalUI
 import UIKit
-import YYImage
+import SDWebImage

 protocol StoryItemMediaViewDelegate: ContextMenuButtonDelegate {
    func storyItemMediaViewWantsToPause(_ storyItemMediaView: StoryItemMediaView)
@@ -252,7 +252,7 @@ class StoryItemMediaView: UIView {
                    // as it would cause the video to loop leading to weird UX
                    glyphCount = nil
                }
-            } else if let animatedImageDuration = (yyImageView?.image as? YYAnimatedImage)?.duration {
+            } else if let animatedImageDuration = (yyImageView?.image as? SDAnimatedImage)?.animationDuration {
                // GIFs should loop 3 times, or play for 5 seconds
                // whichever is longer.
                return max(5, animatedImageDuration * 3)
@@ -948,10 +948,10 @@ class StoryItemMediaView: UIView {
        return playerView
    }

-    private var yyImageView: YYAnimatedImageView?
+    private var yyImageView: SDAnimatedImageView?
    private func buildYYImageView(attachment: AttachmentStream) -> UIView {
        guard
-            let image = try? attachment.decryptedYYImage()
+            let image = try? attachment.decryptedSDAnimatedImage()
        else {
            owsFailDebug("Could not load attachment.")
            return buildContentUnavailableView()
@@ -961,7 +961,7 @@ class StoryItemMediaView: UIView {
                owsFailDebug("Attachment has invalid size.")
                return buildContentUnavailableView()
        }
-        let animatedImageView = YYAnimatedImageView()
+        let animatedImageView = SDAnimatedImageView()
        animatedImageView.contentMode = .scaleAspectFit
        animatedImageView.layer.minificationFilter = .trilinear
        animatedImageView.layer.magnificationFilter = .trilinear
--- a/Signal/src/ViewControllers/MediaGallery/MediaItemViewController.swift
+++ b/Signal/src/ViewControllers/MediaGallery/MediaItemViewController.swift
@@ -6,7 +6,7 @@
 import CoreMedia
 import SignalServiceKit
 import SignalUI
-import YYImage
+import SDWebImage

 protocol MediaItemViewControllerDelegate: AnyObject {
    func mediaItemViewControllerDidTapMedia(_ viewController: MediaItemViewController)
@@ -117,8 +117,8 @@ class MediaItemViewController: OWSViewController, VideoPlaybackStatusProvider {
                view = buildPlaceholderView()
            }
        } else if attachmentStream.contentType.isAnimatedImage {
-            if let animatedGif = try? attachmentStream.decryptedYYImage() {
-                view = YYAnimatedImageView(image: animatedGif)
+            if let animatedGif = try? attachmentStream.decryptedSDAnimatedImage() {
+                view = SDAnimatedImageView(image: animatedGif)
            } else {
                view = buildPlaceholderView()
            }
--- a/Signal/src/ViewControllers/ViewOnceMessageViewController.swift
+++ b/Signal/src/ViewControllers/ViewOnceMessageViewController.swift
@@ -6,7 +6,7 @@
 import CoreMedia
 import SignalServiceKit
 import SignalUI
-import YYImage
+import SDWebImage

 class ViewOnceMessageViewController: OWSViewController {

@@ -141,7 +141,7 @@ class ViewOnceMessageViewController: OWSViewController {
                    owsFailDebug("Attachment has invalid size.")
                    return nil
            }
-            let animatedImageView = YYAnimatedImageView()
+            let animatedImageView = SDAnimatedImageView()
            // We need to specify a contentMode since the size of the image
            // might not match the aspect ratio of the view.
            animatedImageView.contentMode = .scaleAspectFit
--- a/Signal/util/SDAnimatedImage+Duration.swift
+++ b/Signal/util/SDAnimatedImage+Duration.swift
@@ -4,13 +4,13 @@
 //

 import Foundation
-public import YYImage
+public import SDWebImage

-public extension YYAnimatedImage {
+public extension SDAnimatedImage {

-    /// YYAnimatedImageView's duration sometimes returns 0 duration even when this extended method works.
-    var duration: TimeInterval? {
-        let frameCount = self.animatedImageFrameCount()
+    /// SDAnimatedImageView's duration sometimes returns 0 duration even when this extended method works.
+    var animationDuration: TimeInterval? {
+        let frameCount = self.animatedImageFrameCount
        guard frameCount > 0 else {
            return nil
        }
--- a/SignalServiceKit/Attachments/SignalAttachment.swift
+++ b/SignalServiceKit/Attachments/SignalAttachment.swift
@@ -6,7 +6,7 @@
 public import AVFoundation
 import Foundation
 import MobileCoreServices
-import YYImage
+import SDWebImage

 public enum SignalAttachmentError: Error {
    case missingData
@@ -1079,7 +1079,7 @@ public class SignalAttachment: NSObject {
            // CGImageSource doesn't know how to handle webp, so we have
            // to pass it through YYImage. This is costly and we could
            // perhaps do better, but webp images are usually small.
-            guard let yyImage = YYImage(data: dataSource.data) else {
+            guard let yyImage = UIImage.sd_image(with: dataSource.data) else {
                owsFailDebug("Failed to initialized YYImage")
                return nil
            }
--- a/SignalServiceKit/Environment/AppSetup.swift
+++ b/SignalServiceKit/Environment/AppSetup.swift
@@ -5,6 +5,8 @@

 import Foundation
 public import LibSignalClient
+import SDWebImage
+import SDWebImageWebPCoder

 public class AppSetup {
    public init() {}
@@ -1884,6 +1886,12 @@ extension AppSetup.FinalContinuation {

    @MainActor
    public func runLaunchTasksIfNeededAndReloadCaches() {
+
+        // Coders are consulted in reverse order of adding, so add
+        // the AWebPCoder last, which used the native ImageIO, if supported
+        SDImageCodersManager.shared.addCoder(SDImageWebPCoder.shared)
+        SDImageCodersManager.shared.addCoder(SDImageAWebPCoder.shared)
+
        // Warm (or re-warm) all of the caches. In theory, every cache is
        // susceptible to diverging state between the Main App & NSE and should be
        // reloaded here. In practice, some caches exist but aren't used by the
--- a/SignalServiceKit/Messages/Attachments/V2/AttachmentStream.swift
+++ b/SignalServiceKit/Messages/Attachments/V2/AttachmentStream.swift
@@ -5,7 +5,7 @@

 public import AVFoundation
 import Foundation
-public import YYImage
+public import SDWebImage

 /// Represents a downloaded attachment with the fullsize contents available on local disk.
 public class AttachmentStream {
@@ -174,8 +174,8 @@ public class AttachmentStream {
            let data = try self.decryptedRawData()
            let image: UIImage?
            if mimeType.caseInsensitiveCompare(MimeType.imageWebp.rawValue) == .orderedSame {
-                /// Use YYImage for webp.
-                image = YYImage(data: data)
+                /// Use SDAnimatedImage for webp.
+                image = SDAnimatedImage(data: data)
            } else {
                image = UIImage(data: data)
            }
@@ -197,12 +197,12 @@ public class AttachmentStream {
        }
    }

-    public func decryptedYYImage() throws -> YYImage {
+    public func decryptedSDAnimatedImage() throws -> SDAnimatedImage {
        switch contentType {
        case .file, .invalid, .audio, .video:
            throw OWSAssertionError("Requesting image from non-visual attachment")
        case .image, .animatedImage:
-            return try YYImage.yyImage(from: self)
+            return try SDAnimatedImage.sdImage(from: self)
        }
    }

--- a/SignalServiceKit/Messages/Attachments/V2/Playback/SDAnimatedImage+Attachment.swift
+++ b/SignalServiceKit/Messages/Attachments/V2/Playback/SDAnimatedImage+Attachment.swift
@@ -3,13 +3,13 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 //

-public import YYImage
+public import SDWebImage

-extension YYImage {
+extension SDAnimatedImage {

-    public static func yyImage(
+    public static func sdImage(
        from attachment: AttachmentStream
-    ) throws -> YYImage {
+    ) throws -> SDAnimatedImage {
        // YYImage has an initializer that takes a file path, but that
        // initializer loads the entire file's data into memory.
        // So we don't use any more memory at any point compared to that.
@@ -19,7 +19,7 @@ extension YYImage {
        // file types other than png and jpeg and its unclear if it would work
        // at all for animated images.
        let data = try attachment.decryptedRawData()
-        guard let image = YYImage(data: data) else {
+        guard let image = SDAnimatedImage(data: data) else {
            throw OWSAssertionError("Unable to decode image")
        }
        return image
--- a/SignalServiceKit/Messages/Attachments/V2/Playback/UIImage+Attachment.swift
+++ b/SignalServiceKit/Messages/Attachments/V2/Playback/UIImage+Attachment.swift
@@ -4,7 +4,7 @@
 //

 import Foundation
-import YYImage
+import SDWebImage

 extension UIImage {

@@ -80,8 +80,8 @@ extension UIImage {
        )
        let image: UIImage?
        if mimeType.caseInsensitiveCompare(MimeType.imageWebp.rawValue) == .orderedSame {
-            /// Use YYImage for webp.
-            image = YYImage(data: data)
+            /// Use SDAnimatedImage for webp.
+            image = SDAnimatedImage(data: data)
        } else {
            image = UIImage(data: data)
        }
--- a/SignalServiceKit/Messages/Attachments/V2/ViewOnce/ViewOnceContent.swift
+++ b/SignalServiceKit/Messages/Attachments/V2/ViewOnce/ViewOnceContent.swift
@@ -5,7 +5,7 @@

 public import AVFoundation
 import Foundation
-public import YYImage
+public import SDWebImage

 /// When presenting a view-once message, we:
 /// 1. copy the displayable attachment contents to a tmp file
@@ -60,7 +60,7 @@ public class ViewOnceContent {
        )
    }

-    public func loadYYImage() throws -> YYImage {
+    public func loadYYImage() throws -> SDAnimatedImage {
        // hmac and digest are validated at download time; no need to revalidate every read.
        let data = try Cryptography.decryptFileWithoutValidating(
            at: fileUrl,
@@ -69,7 +69,7 @@ public class ViewOnceContent {
                plaintextLength: Int(plaintextLength)
            )
        )
-        guard let image = YYImage(data: data) else {
+        guard let image = SDAnimatedImage(data: data) else {
            throw OWSAssertionError("Couldn't load image")
        }
        return image
--- a/SignalServiceKit/Storage/Database/IncrementalMigrations/TSAttachment/TSAttachmentMigration+OWSImageSource.swift
+++ b/SignalServiceKit/Storage/Database/IncrementalMigrations/TSAttachment/TSAttachmentMigration+OWSImageSource.swift
@@ -5,7 +5,6 @@

 import Foundation
 import libwebp
-import YYImage

 // MARK: - PNG Chunker

--- a/SignalServiceKit/Util/ImageMetadata/NSData+Image.swift
+++ b/SignalServiceKit/Util/ImageMetadata/NSData+Image.swift
@@ -6,7 +6,6 @@
 import Foundation

 import libwebp
-import YYImage

 extension NSData {
    @objc
--- a/SignalServiceKit/Util/ImageMetadata/OWSImageSource.swift
+++ b/SignalServiceKit/Util/ImageMetadata/OWSImageSource.swift
@@ -5,8 +5,7 @@

 import Foundation

-import libwebp
-import YYImage
+import SDWebImage

 public protocol OWSImageSource {

@@ -487,12 +486,8 @@ extension OWSImageSource {
        guard let data = try? self.readIntoMemory() else {
            return nil
        }
-        guard let cgImage = YYCGImageCreateWithWebPData(data as CFData, false, false, false, false) else {
-            owsFailDebug("Could not generate still for webp image.")
-            return nil
-        }

-        return UIImage(cgImage: cgImage.takeRetainedValue())
+        return UIImage.sd_image(with: data)
    }

    fileprivate static func isWebp(filePath: String) -> Bool {
@@ -512,25 +507,18 @@ extension OWSImageSource {
        guard let data = try? self.readIntoMemory() else {
            return WebpMetadata(isValid: false, canvasWidth: 0, canvasHeight: 0, frameCount: 0)
        }
-        return data.withUnsafeBytes {
-            $0.withMemoryRebound(to: UInt8.self) { buffer in
-                var webPData = WebPData(bytes: buffer.baseAddress, size: buffer.count)
-                guard let demuxer = WebPDemux(&webPData) else {
-                    return WebpMetadata(isValid: false, canvasWidth: 0, canvasHeight: 0, frameCount: 0)
-                }
-                defer {
-                    WebPDemuxDelete(demuxer)
-                }
-
-                let canvasWidth = WebPDemuxGetI(demuxer, WEBP_FF_CANVAS_WIDTH)
-                let canvasHeight = WebPDemuxGetI(demuxer, WEBP_FF_CANVAS_HEIGHT)
-                let frameCount = WebPDemuxGetI(demuxer, WEBP_FF_FRAME_COUNT)
-                let result = WebpMetadata(isValid: canvasWidth > 0 && canvasHeight > 0 && frameCount > 0,
-                                          canvasWidth: canvasWidth,
-                                          canvasHeight: canvasHeight,
-                                          frameCount: frameCount)
-                return result
-            }
+        guard let image = SDAnimatedImage(data: data) else {
+            return WebpMetadata(isValid: false, canvasWidth: 0, canvasHeight: 0, frameCount: 0)
        }
+
+        let count = image.sd_imageFrameCount
+        let height = image.pixelHeight
+        let width = image.pixelWidth
+        return WebpMetadata(
+            isValid: width > 0 && height > 0 && count > 0,
+            canvasWidth: UInt32(width),
+            canvasHeight: UInt32(height),
+            frameCount: UInt32(count)
+        )
    }
 }
--- a/SignalUI/ConversationView/CVUtils.swift
+++ b/SignalUI/ConversationView/CVUtils.swift
@@ -5,7 +5,7 @@

 import SignalServiceKit
 import UIKit
-public import YYImage
+public import SDWebImage

 public class CVUtils {

@@ -199,7 +199,7 @@ open class CVImageView: UIImageView, CVView {

 // MARK: -

-open class CVAnimatedImageView: YYAnimatedImageView, CVView {
+public class CVAnimatedImageView: SDAnimatedImageView, CVView {
    public override func updateConstraints() {
        super.updateConstraints()

--- a/SignalUI/LinkPreview/LinkPreviewState.swift
+++ b/SignalUI/LinkPreview/LinkPreviewState.swift
@@ -4,7 +4,6 @@
 //

 public import SignalServiceKit
-import YYImage

 public enum LinkPreviewImageState: Equatable {
    case none
@@ -322,7 +321,7 @@ public class LinkPreviewSent: LinkPreviewState {
            DispatchQueue.global().async {
                switch attachmentStream.contentType {
                case .animatedImage:
-                    guard let image = try? attachmentStream.decryptedYYImage() else {
+                    guard let image = try? attachmentStream.decryptedSDAnimatedImage() else {
                        owsFailDebug("Could not load image")
                        return
                    }
--- a/SignalUI/LinkPreview/LinkPreviewView.swift
+++ b/SignalUI/LinkPreview/LinkPreviewView.swift
@@ -3,7 +3,6 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 //

-import YYImage
 import SignalServiceKit

 public protocol LinkPreviewViewDraftDelegate: AnyObject {
--- a/SignalUI/Stickers/StickerView.swift
+++ b/SignalUI/Stickers/StickerView.swift
@@ -5,7 +5,7 @@

 import Lottie
 public import SignalServiceKit
-import YYImage
+import SDWebImage

 public class StickerView {

@@ -71,15 +71,14 @@ public class StickerView {
        let stickerView: UIView
        switch stickerType {
        case .webp, .apng, .gif:
-            guard let stickerImage = YYImage(data: stickerData) else {
+            guard let stickerImage = SDAnimatedImage(data: stickerData) else {
                owsFailDebug("Sticker could not be parsed.")
                return nil
            }
-            let yyView = YYAnimatedImageView()
-            yyView.alwaysInfiniteLoop = true
-            yyView.contentMode = .scaleAspectFit
-            yyView.image = stickerImage
-            stickerView = yyView
+            let sdAnimatedImageView = SDAnimatedImageView()
+            sdAnimatedImageView.contentMode = .scaleAspectFit
+            sdAnimatedImageView.image = stickerImage
+            stickerView = sdAnimatedImageView
        }
        return stickerView
    }
--- a/SignalUI/Views/LoopingVideoView.swift
+++ b/SignalUI/Views/LoopingVideoView.swift
@@ -5,7 +5,6 @@

 public import AVKit
 public import SignalServiceKit
-import YYImage

 /// Model object for a looping video asset
 /// Any LoopingVideoViews playing this instance will all be kept in sync
--- a/SignalUI/Views/MediaMessageView.swift
+++ b/SignalUI/Views/MediaMessageView.swift
@@ -5,7 +5,7 @@

 import SignalServiceKit
 import UIKit
-import YYImage
+import SDWebImage

 class MediaMessageView: UIView, AudioPlayerDelegate {

@@ -138,13 +138,14 @@ class MediaMessageView: UIView, AudioPlayerDelegate {
    private func createAnimatedPreview() {
        guard attachment.isValidImage,
              let dataUrl = attachment.dataUrl,
-              let image = YYImage(contentsOfFile: dataUrl.path),
-              image.size.width > 0 && image.size.height > 0 else {
+              let image = SDAnimatedImage(contentsOfFile: dataUrl.path),
+              image.size.width > 0 && image.size.height > 0
+        else {
            createGenericPreview()
            return
        }

-        let animatedImageView = YYAnimatedImageView()
+        let animatedImageView = SDAnimatedImageView()
        animatedImageView.image = image
        let aspectRatio = image.size.width / image.size.height