fix: dvd regressions (#1714)

* fix: dvd regressions

* chore: fix clippy errors

Author: hrideshmg

docs/CHANGES.TXT

@@ -1,5 +1,6 @@
 1.0 (to be released)
 -----------------
+- Fix: Regression failures on DVD files
 - Fix: Segmentation faults on MP4 files with CEA-708 captions
 - Refactor: Remove API structures from ccextractor
 - New: Add Encoder Module to Rust

src/rust/src/libccxr_exports/bitstream.rs

@@ -74,6 +74,8 @@ unsafe fn copy_bitstream_c_to_rust(value: *mut bitstream) -> BitStreamRust<'stat
                 let i_offset = (*value)._i_pos.offset_from((*value).pos);
                 i_pos_in_slice = i_offset.max(0) as usize;
             }
+        } else if (*value).pos == (*value).end {
+            slice = std::slice::from_raw_parts((*value).pos, 1);
         }
     }