Added support of mxf videos (#2514)

* added support of mxf videos

CHANGELOG.md

@@ -66,6 +66,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - MOTS png mask format support (<https://github.com/openvinotoolkit/cvat/pull/2198>)
 - Ability to correct upload video with a rotation record in the metadata (<https://github.com/openvinotoolkit/cvat/pull/2218>)
 - User search field for assignee fields (<https://github.com/openvinotoolkit/cvat/pull/2370>)
+- Support of mxf videos (<https://github.com/openvinotoolkit/cvat/pull/2514>)
 
 ### Changed
 

cvat/apps/engine/media.mimetypes

@@ -61,6 +61,7 @@ video/mp2t	m2t
 video/mp2t	bdmv
 video/vnd.mpegurl	m4u
 video/mp4	m4v
+video/mxf	mxf
 
 # possible image formats
 image/x-minolta-mrw	mrw

cvat/apps/engine/tests/test_rest_api.py

@@ -1697,12 +1697,13 @@ def generate_image_files(*args):
 
     return image_sizes, images
 
-def generate_video_file(filename, width=1920, height=1080, duration=1, fps=25):
+def generate_video_file(filename, width=1920, height=1080, duration=1, fps=25, codec_name='mpeg4'):
     f = BytesIO()
     total_frames = duration * fps
-    container = av.open(f, mode='w', format='mp4')
+    file_ext = os.path.splitext(filename)[1][1:]
+    container = av.open(f, mode='w', format=file_ext)
 
-    stream = container.add_stream('mpeg4', rate=fps)
+    stream = container.add_stream(codec_name=codec_name, rate=fps)
     stream.width = width
     stream.height = height
     stream.pix_fmt = 'yuv420p'
@@ -2339,6 +2340,23 @@ class TaskDataAPITestCase(APITestCase):
         self._test_api_v1_tasks_id_data_spec(user, task_spec, task_data, self.ChunkType.IMAGESET,
             self.ChunkType.VIDEO, image_sizes, StorageMethodChoice.CACHE)
 
+        task_spec = {
+            "name": "test mxf format",
+            "use_zip_chunks": False,
+            "labels": [
+                {"name": "car"},
+                {"name": "person"},
+            ],
+        }
+
+        image_sizes, video = generate_video_file(filename="test_video_1.mxf", width=1280, height=720, codec_name='mpeg2video')
+        task_data = {
+            "client_files[0]": video,
+            "image_quality": 51,
+        }
+
+        self._test_api_v1_tasks_id_data_spec(user, task_spec, task_data, self.ChunkType.VIDEO, self.ChunkType.VIDEO, image_sizes)
+
     def test_api_v1_tasks_id_data_admin(self):
         self._test_api_v1_tasks_id_data(self.admin)