movmuxer: fix writing co64 atom

diff --git a/nihav-commonfmt/src/muxers/mov/mod.rs b/nihav-commonfmt/src/muxers/mov/mod.rs
index 467cd9af7cd851738fb49f869a77620c52a33a52..8d21582b5a40c283f0cd8877542c4dc467db8037 100644 (file)
--- a/nihav-commonfmt/src/muxers/mov/mod.rs
+++ b/nihav-commonfmt/src/muxers/mov/mod.rs
@@ -185,6 +185,7 @@ impl ChunkAccount {
             let co64 = AtomMarker::start(bw, b"co64")?;
             bw.write_byte(0)?;  // version
             bw.write_u24be(0)?; // flags
+            bw.write_u32be(self.offsets64.len() as u32)?;
             for &off in self.offsets64.iter() {
                 bw.write_u64be(off)?;
             }