Change #263546

Comments

vf_mpdecimate: Fix keep option logic for keep > 0
Fix the following issues with the keep option:

- Add similarity check during keep period. Previously, the code
  returned early during the keep period without checking if the
  frame is actually similar to the reference.

- Reset keep_count on different frames. Previously, the counter
  could accumulate across non-consecutive similar frames, causing
  frames to be dropped earlier than expected.

- Keep the same frame reference if appropriate. Previously, the
  code made similar frames the new reference, causing reference
  drift and gradual scene changes.

Signed-off-by: Dana Feng <danaf@twosigma.com>

Changed files

• libavfilter/vf_mpdecimate.c