+impl From<AllocatorError> for DecoderError {
+ fn from(_: AllocatorError) -> Self { DecoderError::AllocError }
+}
+
+macro_rules! validate {
+ ($a:expr) => { if !$a { return Err(DecoderError::InvalidData); } };
+}
+
+#[allow(dead_code)]
+struct HAMShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl HAMShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { HAMShuffler { lastframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref mut frm) = self.lastframe {
+ let newfrm = frm.copy_buffer();
+ *frm = newfrm.clone();
+ Some(newfrm)
+ } else {
+ None
+ }
+ }
+ #[allow(dead_code)]
+ fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
+ match self.lastframe {
+ Some(ref frm) => Some(frm.clone()),
+ None => None,
+ }
+ }
+}
+
+#[allow(dead_code)]
+struct IPShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl IPShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { IPShuffler { lastframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref frm) = self.lastframe {
+ Some(frm.clone())
+ } else {
+ None
+ }
+ }
+}
+