maybe fix snippet dur

1 files changed, 7 insertions, 2 deletions

diff --git a/remuxer/src/snippet.rs b/remuxer/src/snippet.rs
index 1429df1..54bc78d 100644
--- a/remuxer/src/snippet.rs
+++ b/remuxer/src/snippet.rs
@@ -137,9 +137,14 @@ pub fn write_snippet_into(
                 .unwrap_or(&index.blocks.len()),
         )
     };
+    debug!("writing blocks {start_block_index} to {end_block_index}.");
 
     let start_block = &index.blocks[start_block_index];
-    let last_block = &index.blocks[end_block_index - 1];
+    let last_block_pts = index
+        .blocks
+        .get(end_block_index)
+        .map(|b| b.pts)
+        .unwrap_or((media_info.duration * 1000.) as u64);
 
     reader.seek(start_block.source_off, MatroskaTag::Cluster(Master::Start))?;
 
@@ -150,7 +155,7 @@ pub fn write_snippet_into(
             "{} (track {track}; snippet {n})",
             item.title.clone().unwrap_or_default()
         ),
-        (last_block.pts - start_block.pts) as f64 / 1000.,
+        (last_block_pts - start_block.pts) as f64 / 1000.,
     ))?;
     output.write_tag(&MatroskaTag::Tags(Master::Collected(vec![])))?;
     output.write_tag(&MatroskaTag::Tracks(Master::Collected(vec![