Enable x-msvideo conversion (#304)

Author: rob93c

src/main/java/com/github/stickerifier/stickerify/media/MediaHelper.java

@@ -53,7 +53,7 @@ public final class MediaHelper {
 	static final ProcessLocator FFMPEG_LOCATOR = new PathLocator();
 	private static final int PRESERVE_ASPECT_RATIO = -2;
 	private static final List<String> SUPPORTED_VIDEOS = List.of("image/gif", "video/quicktime", "video/webm",
-			"video/mp4", "video/x-m4v", "application/x-matroska");
+			"video/mp4", "video/x-m4v", "application/x-matroska", "video/x-msvideo");
 
 	/**
 	 * Based on the type of passed-in file, it converts it into the proper media.

src/test/java/com/github/stickerifier/stickerify/media/MediaHelperTest.java

@@ -215,6 +215,14 @@ void convertGifVideo() throws Exception {
 		assertVideoConsistency(result, 512, 274, 10F, 1_000L);
 	}
 
+	@Test
+	void convertAviVideo() throws Exception {
+		var aviVideo = loadResource("valid.avi");
+		var result = MediaHelper.convert(aviVideo);
+
+		assertVideoConsistency(result, 512, 512, 30F, 3_000L);
+	}
+
 	@Test
 	void noVideoConversionNeeded() throws Exception {
 		var webmVideo = loadResource("no_conversion_needed.webm");
@@ -319,6 +327,14 @@ void concurrentWebmVideoConversions() {
 			executeConcurrentConversionsOf(webmVideo);
 		}
 
+		@Test
+		@DisplayName("avi videos")
+		void concurrentAviVideoConversions() {
+			var aviVideo = loadResource("valid.avi");
+
+			executeConcurrentConversionsOf(aviVideo);
+		}
+
 		@Test
 		@DisplayName("gif videos")
 		void concurrentGifVideoConversions() {