Description: Fix MP4 test failure with FFmpeg 9
 Newer FFmpeg calculates the movie timescale from the stream timescales
 (resulting in 720000 for dirty.mp4) rather than defaulting to 1000.
Forwarded: no

--- a/tests/test_libmat2.py
+++ b/tests/test_libmat2.py
@@ -611,6 +611,7 @@
             },
             'extra_expected_meta': {
                 'VideoFullRangeFlag': 0,
+                'TimeScale': 720000,
              }
         },{
             'name': 'wmv',