1 files changed, 29 insertions, 0 deletions
diff --git a/evc/src/format/header.rs b/evc/src/format/header.rs
new file mode 100644
index 0000000..371b4ba
--- /dev/null
+++ b/evc/src/format/header.rs
@@ -0,0 +1,29 @@
+use crate::{
+    helpers::vector::Vec2,
+    format::ser::{Ser, Sink, Source},
+};
+
+#[derive(Debug, Clone, PartialEq, Copy)]
+pub struct Header {
+    pub resolution: Vec2<isize>,
+    pub frame_count: usize,
+}
+
+pub const MAGIC: [u8; 4] = [0x5eu8, 0xb1u8, 0xc3u8, 0x08u8];
+
+impl Ser for Header {
+    fn write(&self, sink: &mut impl std::io::Write) -> anyhow::Result<()> {
+        sink.put(MAGIC)?;
+        sink.put((self.resolution, self.frame_count))?;
+        Ok(())
+    }
+
+    fn read(source: &mut impl std::io::Read) -> anyhow::Result<Self> {
+        assert_eq!(source.get::<[u8; 4]>()?, MAGIC);
+        let (resolution, frame_count) = source.get()?;
+        Ok(Self {
+            resolution,
+            frame_count,
+        })
+    }
+}