[FIX] Unexpected behavior of get_write_interval (#1609)

* fix: Unexpected behavior of get_write_interval Adresses Issue#1606 * docs: Add changes to `CHANGES.TXT`
CCExtractor · May 24, 2024 · 5748042 · 5748042
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commit 5748042
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diff --git a/docs/CHANGES.TXT b/docs/CHANGES.TXT
@@ -1,5 +1,6 @@
 0.95 (to be released)
 -----------------
+- Fix: Unexpected behavior of get_write_interval (#1609)
 - Update: Bump rsmpeg to latest version for ffmpeg bindings (#1600)
 - New: Add SCC support for CEA-708 decoder (#1595)
 - Fix: respect `-stdout` even if multiple CC tracks are present in a Matroska input file (#1453)

diff --git a/src/rust/src/decoder/tv_screen.rs b/src/rust/src/decoder/tv_screen.rs
@@ -105,7 +105,8 @@ impl dtvcc_tv_screen {
     /// Returns the bounds in which captions are present
     pub fn get_write_interval(&self, row_index: usize) -> (usize, usize) {
         let mut first = 0;
-        let mut last = CCX_DTVCC_SCREENGRID_COLUMNS as usize - 1;
+        let mut last = 0;
+
         for col in 0..CCX_DTVCC_SCREENGRID_COLUMNS as usize {
             if self.chars[row_index][col].is_set() {
                 first = col;