start on sdp impl

1 files changed, 56 insertions, 0 deletions

diff --git a/src/sdp/mod.rs b/src/sdp/mod.rs
new file mode 100644
index 0000000..635c182
--- /dev/null
+++ b/src/sdp/mod.rs
@@ -0,0 +1,56 @@
+use anyhow::{anyhow, bail};
+use std::str::FromStr;
+
+pub struct SessionDescription {
+    version: String,
+    originator: String,
+    session_name: String,
+    session_information: Option<String>,
+    description_uri: Option<String>,
+    email_address: Option<String>,
+    phone_number: Option<String>,
+    connection_information: Vec<String>,
+    bandwidth: Vec<String>,
+    time_descriptions: Vec<TimeDescription>,
+    time_zone_adjustments: Option<String>,
+    encryption_key: Option<String>,
+    session_attribute: Vec<String>,
+    media_descriptions: Vec<MediaDescription>,
+}
+
+pub struct TimeDescription {
+    time: String,
+    repeat_times: Vec<String>,
+}
+
+pub struct MediaDescription {
+    name: String,
+    title: String,
+    connection_information: String,
+}
+
+impl FromStr for SessionDescription {
+    type Err = anyhow::Error;
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let mut version = None;
+        let mut originator = None;
+        let mut session_name = None;
+        let mut session_information = None;
+        let mut description_uri = None;
+        let mut email_address = None;
+        let mut phone_number = None;
+        let mut connection_information = Vec::new();
+        let mut bandwidth = Vec::new();
+        for line in s.lines() {
+            let (r#type, value) = line.split_once("=").ok_or(anyhow!("sdp line invalid"))?;
+            match r#type {
+                "v" => version = Some(value.to_string()),
+                "o" => originator = Some(value.to_string()),
+                "s" => session_name = Some(value.to_string()),
+                "s" => session_name = Some(value.to_string()),
+                x => bail!("unknown sdp type ({x:?})"),
+            }
+        }
+        Ok(Self {})
+    }
+}