Add a null filter to re-enable frame count (#107)

tvercaut · web-flow · commit 44c81e61d5e5 · 2024-05-23T13:38:07.000+02:00
* Add a null filter to re-enable frame count This aims at addressing #99 * Relax testing criteria in test_read_nframes See #107 (comment)
diff --git a/imageio_ffmpeg/_io.py b/imageio_ffmpeg/_io.py
@@ -153,8 +153,8 @@ def count_frames_and_secs(path):
         path,
         "-map",
         "0:v:0",
-        "-c",
-        "copy",
+        "-vf",
+        "null",
         "-f",
         "null",
         "-",
diff --git a/tests/test_io.py b/tests/test_io.py
@@ -40,7 +40,7 @@ def test_ffmpeg_version():
 def test_read_nframes():
     nframes, nsecs = imageio_ffmpeg.count_frames_and_secs(test_file1)
     assert nframes == 280
-    assert 13.80 < nsecs < 13.99
+    assert 13.80 < nsecs <= 14.00
 
 
 def test_read_frames_resource_warning():

-Original file line number
+Diff line change
         path,
         "-map",
         "0:v:0",
 -        "-c",
 -        "copy",
 +        "-vf",
 +        "null",
         "-f",
         "null",
         "-",