1 files changed, 28 insertions, 0 deletions
diff --git a/src/frame.rs b/src/frame.rs
new file mode 100644
index 0000000..f4e8099
--- /dev/null
+++ b/src/frame.rs
@@ -0,0 +1,28 @@
+pub struct Frame {
+    pub time: std::time::Duration,
+    pub data: Vec<u8>,
+}
+
+impl std::convert::TryFrom<Frame> for Vec<u8> {
+    type Error = crate::error::Error;
+
+    fn try_from(frame: Frame) -> crate::error::Result<Self> {
+        let secs = u32::try_from(frame.time.as_secs()).map_err(|_| {
+            crate::error::Error::FrameTooLong {
+                input: frame.time.as_secs(),
+            }
+        })?;
+        let micros = frame.time.subsec_micros();
+        let len = u32::try_from(frame.data.len()).map_err(|_| {
+            crate::error::Error::FrameTooBig {
+                input: frame.data.len(),
+            }
+        })?;
+        let mut bytes = vec![];
+        bytes.extend(secs.to_le_bytes().iter());
+        bytes.extend(micros.to_le_bytes().iter());
+        bytes.extend(len.to_le_bytes().iter());
+        bytes.extend(frame.data.iter());
+        Ok(bytes)
+    }
+}