use fullrange by default for yuv420p if supported (#6655)

1. Explicitly specify the color space as bt601
2. Use fullrange by default for yuv420p if supported
3. Use the pix_fmt space range format to identify codec capabilities, make i444 proto field deprecated, and cause the non-release version of 444 true color to fail.

Signed-off-by: 21pages <pages21@163.com>

src/flutter_ffi.rs

@@ -1416,6 +1416,15 @@ pub fn session_change_prefer_codec(session_id: SessionID) {
     }
 }
 
+pub fn session_is_codec_support_444(session_id: SessionID, codec: String) -> SyncReturn<bool> {
+    let res = if let Some(session) = sessions::get_session_by_session_id(&session_id) {
+        session.is_codec_support_444(codec)
+    } else {
+        false
+    };
+    SyncReturn(res)
+}
+
 pub fn session_on_waiting_for_image_dialog_show(session_id: SessionID) {
     super::flutter::session_on_waiting_for_image_dialog_show(session_id);
 }