From 9e3ad28d09b061534a411624c14fa1bc0c3e112f Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Sun, 1 Aug 2021 07:40:57 +0300
Subject: [PATCH] Allow video notes without sound and prevent their creation.

---
 td/telegram/DocumentsManager.cpp  | 9 +++++++--
 td/telegram/VideoNotesManager.cpp | 2 +-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/td/telegram/DocumentsManager.cpp b/td/telegram/DocumentsManager.cpp
index e66b4f731..977c6b573 100644
--- a/td/telegram/DocumentsManager.cpp
+++ b/td/telegram/DocumentsManager.cpp
@@ -118,9 +118,14 @@ Document DocumentsManager::on_get_document(RemoteDocument remote_document, Dialo
     }
 
     if (animated != nullptr) {
-      // video animation
       type_attributes--;
-      video = nullptr;
+      if ((video->flags_ & telegram_api::documentAttributeVideo::ROUND_MESSAGE_MASK) != 0) {
+        // video note without sound
+        animated = nullptr;
+      } else {
+        // video animation
+        video = nullptr;
+      }
     }
   }
   if (animated != nullptr && audio != nullptr) {
diff --git a/td/telegram/VideoNotesManager.cpp b/td/telegram/VideoNotesManager.cpp
index cf967a041..cd9a6f691 100644
--- a/td/telegram/VideoNotesManager.cpp
+++ b/td/telegram/VideoNotesManager.cpp
@@ -219,7 +219,7 @@ tl_object_ptr<telegram_api::InputMedia> VideoNotesManager::get_input_media(
         telegram_api::documentAttributeVideo::ROUND_MESSAGE_MASK, false /*ignored*/, false /*ignored*/,
         video_note->duration, video_note->dimensions.width ? video_note->dimensions.width : 240,
         video_note->dimensions.height ? video_note->dimensions.height : 240));
-    int32 flags = 0;
+    int32 flags = telegram_api::inputMediaUploadedDocument::NOSOUND_VIDEO_MASK;
     if (input_thumbnail != nullptr) {
       flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
     }