Add .m4v as a video file format.

Telegram/SourceFiles/core/file_utilities.cpp

@@ -334,7 +334,7 @@ QString ImagesOrAllFilter() {
 }
 
 QString PhotoVideoFilesFilter() {
-	return u"Image and Video Files (*.png *.jpg *.jpeg *.mp4 *.mov);;"_q
+	return u"Image and Video Files (*.png *.jpg *.jpeg *.mp4 *.mov *.m4v);;"_q
 		+ AllFilesFilter();
 }
 

Telegram/SourceFiles/storage/localimageloader.cpp

@@ -682,6 +682,7 @@ bool FileLoadTask::CheckForVideo(
 	static const auto extensions = {
 		u".mp4"_q,
 		u".mov"_q,
+		u".m4v"_q,
 		u".webm"_q,
 	};
 	if (!CheckMimeOrExtensions(filepath, result->filemime, mimes, extensions)) {