add: h265 & AV1 support (with a lot of fixes)

crates/server/src/codec/mod.rs

@@ -0,0 +1,18 @@
+use bytes::Bytes;
+
+pub mod av1;
+pub mod h264;
+pub mod h265;
+
+#[cfg(test)]
+mod flv_replay_test;
+
+pub trait CodecParser: Send {
+    fn parse(&mut self, data: &[u8], timestamp_ms: u32) -> Option<VideoFrame>;
+}
+
+pub struct VideoFrame {
+    pub data: Bytes,
+    pub is_keyframe: bool,
+    pub timestamp_ms: u32,
+}