mkv: fixed off-by-one error in FixedSize lacing mode

pdeljanov · Nov 18, 2021 · 911affc · 911affc
1 parent a9e5d81
commit 911affc
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/symphonia-format-mkv/src/lib.rs b/symphonia-format-mkv/src/lib.rs
@@ -135,7 +135,7 @@ fn extract_frames(block: &[u8], buffer: &mut VecDeque<(u32, Box<[u8]>)>) -> Resu
             buffer.push_back((track, reader.read_boxed_slice_exact(size)?));
         }
         Lacing::FixedSize => {
-            let frames = reader.read_byte()? as usize;
+            let frames = reader.read_byte()? as usize + 1;
             let total_size = block.len() - reader.pos() as usize;
             if total_size % frames != 0 {
                 return Err(Error::DecodeError("mkv: invalid block size"));
@@ -322,7 +322,7 @@ impl FormatReader for MkvReader {
                 }
             }
 
-            match header.etype {
+            match dbg!(header).etype {
                 ElementType::Cluster => {
                     self.current_cluster = Some(ClusterState {
                         timestamp: None,