- // For each card, the last three frames (or fields), with 0 being the
- // most recent one. Note that we only need the actual history if we have
- // interlaced output (for deinterlacing), so if we detect progressive input,
- // we immediately clear out all history and all entries will point to the same
- // frame.
- BufferedFrame buffered_frames[MAX_CARDS][FRAME_HISTORY_LENGTH];