1 files changed, 31 insertions, 0 deletions
diff --git a/src/boxes/smhd.rs b/src/boxes/smhd.rs
new file mode 100644
index 0000000..dbb3869
--- /dev/null
+++ b/src/boxes/smhd.rs
@@ -0,0 +1,31 @@
+use four_cc::FourCC;
+
+use bytes::{BufMut, BytesMut};
+
+use crate::Mp4BoxError;
+use crate::{FullBoxHeader, Mp4Box};
+
+use std::mem::size_of;
+
+pub struct SoundMediaHeaderBox {}
+
+impl Mp4Box for SoundMediaHeaderBox {
+    const NAME: FourCC = FourCC(*b"smhd");
+
+    fn get_full_box_header(&self) -> Option<FullBoxHeader> {
+        Some(FullBoxHeader::new(0, 0))
+    }
+
+    fn content_size(&self) -> u64 {
+        size_of::<u16>() as u64 + // balance
+        size_of::<u16>() as u64 // reserved
+    }
+
+    fn write_box_contents(&self, writer: &mut BytesMut) -> Result<(), Mp4BoxError> {
+        let contents = [0u8; 4];
+
+        writer.put_slice(&contents);
+
+        Ok(())
+    }
+}