1 files changed, 46 insertions, 0 deletions
diff --git a/src/boxes/minf.rs b/src/boxes/minf.rs
new file mode 100644
index 0000000..70a6cc4
--- /dev/null
+++ b/src/boxes/minf.rs
@@ -0,0 +1,46 @@
+use four_cc::FourCC;
+
+use bytes::BytesMut;
+
+use crate::Mp4Box;
+use crate::Mp4BoxError;
+
+use super::{DataInformationBox, SampleTableBox, SoundMediaHeaderBox, VideoMediaHeaderBox};
+
+pub enum MediaHeader {
+    Video(VideoMediaHeaderBox),
+    Sound(SoundMediaHeaderBox),
+}
+
+pub struct MediaInformationBox {
+    pub media_header: MediaHeader,
+    pub dinf: DataInformationBox,
+    pub stbl: SampleTableBox,
+}
+
+impl Mp4Box for MediaInformationBox {
+    const NAME: FourCC = FourCC(*b"minf");
+
+    fn content_size(&self) -> u64 {
+        let mut size = self.dinf.size() + self.stbl.size();
+
+        match &self.media_header {
+            MediaHeader::Video(vmhd) => size += vmhd.size(),
+            MediaHeader::Sound(smhd) => size += smhd.size(),
+        }
+
+        size
+    }
+
+    fn write_box_contents(&self, writer: &mut BytesMut) -> Result<(), Mp4BoxError> {
+        match &self.media_header {
+            MediaHeader::Video(vmhd) => vmhd.write(writer)?,
+            MediaHeader::Sound(smhd) => smhd.write(writer)?,
+        }
+
+        self.dinf.write(writer)?;
+        self.stbl.write(writer)?;
+
+        Ok(())
+    }
+}