Do not compress GIFs (#1616, #1254)

CHANGES.md

@@ -16,6 +16,7 @@ Bugfix 🐛:
  - Double bottomsheet effect after verify with passphrase
  - EditText cursor jumps to the start while typing fast (#2469)
  - Show preview when sending attachment from the keyboard (#2440)
+ - Do not compress GIFs (#1616, #1254)
 
 Translations 🗣:
  -

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/content/UploadContentWorker.kt

@@ -151,7 +151,10 @@ internal class UploadContentWorker(val context: Context, params: WorkerParameter
                         params.attachment.size
                 )
 
-                if (attachment.type == ContentAttachmentData.Type.IMAGE && params.compressBeforeSending) {
+                if (attachment.type == ContentAttachmentData.Type.IMAGE
+                        // Do not compress gif
+                        && attachment.mimeType != "image/gif"
+                        && params.compressBeforeSending) {
                     fileToUpload = imageCompressor.compress(context, workingFile, MAX_IMAGE_SIZE, MAX_IMAGE_SIZE)
                             .also { compressedFile ->
                                 // Get new Bitmap size