add marshal and upgrade to v0.6.1

Author: rainliu

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rtcp"
-version = "0.6.0"
+version = "0.6.1"
 authors = ["Rain Liu <[email protected]>", "Michael Uti <[email protected]>"]
 edition = "2018"
 description = "A pure Rust implementation of RTCP"

src/packet.rs

@@ -11,7 +11,7 @@ use crate::{
 use util::marshal::{Marshal, Unmarshal};
 
 use crate::extended_report::ExtendedReport;
-use bytes::Buf;
+use bytes::{Buf, BufMut, Bytes, BytesMut};
 use std::any::Any;
 use std::fmt;
 
@@ -38,6 +38,16 @@ impl Clone for Box<dyn Packet + Send + Sync> {
     }
 }
 
+/// marshal takes an array of Packets and serializes them to a single buffer
+pub fn marshal(packets: &[Box<dyn Packet + Send + Sync>]) -> Result<Bytes> {
+    let mut out = BytesMut::new();
+    for p in packets {
+        let data = p.marshal()?;
+        out.put(data);
+    }
+    Ok(out.freeze())
+}
+
 /// Unmarshal takes an entire udp datagram (which may consist of multiple RTCP packets) and
 /// returns the unmarshaled packets it contains.
 ///