refactor: 删除部分多余的代码和注释

src/rtsp/types.rs

@@ -0,0 +1,53 @@
+use rand::Rng;
+use rtsp_types as rtsp;
+use std::collections::HashMap;
+use std::fmt;
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum RtspServiceStatus {
+    Stopped,
+    Starting,
+    Running,
+    Error(String),
+}
+
+impl fmt::Display for RtspServiceStatus {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Stopped => write!(f, "stopped"),
+            Self::Starting => write!(f, "starting"),
+            Self::Running => write!(f, "running"),
+            Self::Error(err) => write!(f, "error: {}", err),
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub(crate) struct RtspRequest {
+    pub method: rtsp::Method,
+    pub uri: String,
+    pub version: rtsp::Version,
+    pub headers: HashMap<String, String>,
+}
+
+pub(crate) struct RtspConnectionState {
+    pub session_id: String,
+    pub setup_done: bool,
+    pub interleaved_channel: u8,
+}
+
+impl RtspConnectionState {
+    pub fn new() -> Self {
+        Self {
+            session_id: generate_session_id(),
+            setup_done: false,
+            interleaved_channel: 0,
+        }
+    }
+}
+
+pub(crate) fn generate_session_id() -> String {
+    let mut rng = rand::rng();
+    let value: u64 = rng.random();
+    format!("{:016x}", value)
+}