fix: ignore chunks with 0 size

src/mpd_encoder.rs

@@ -268,6 +268,10 @@ impl MpdEncoder {
                 .map(|info| info.uncompressed_size as u32)
                 .sum();
 
+            if compressed_size == 0 || decompressed_size == 0 {
+                continue;
+            }
+
             lod_blocks.push(LodBlock {
                 compressed_offset: compressed_offset as u32,
                 compressed_size,
@@ -281,6 +285,7 @@ impl MpdEncoder {
             sub_blocks.extend(infos);
         }
 
+        // FIXME: fails on minions defined
         assert_eq!(sub_blocks_len, sub_blocks.len());
 
         let after_data = self.writer.stream_position().map_err(Error::Io)?;