[libcamera-devel] [RFC PATCH 03/12] libcamera: request: Add PFCError flag

[Kieran Bingham]

Provide a new flag for the Request error state to indicate that a
per-frame control error has occurred. One or more controls set for this
request could not be guaranteed on this frame.

Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
---
 include/libcamera/request.h | 1 +
 src/libcamera/request.cpp   | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/include/libcamera/request.h b/include/libcamera/request.h
index 992629e11aa4..d6d9f0d214dc 100644
--- a/include/libcamera/request.h
+++ b/include/libcamera/request.h
@@ -47,6 +47,7 @@ public:
 	enum ErrorFlag {
 		NoError = 0,
 		ControlError = (1 << 0),
+		PFCError = (1 << 1),
 	};
 
 	using ErrorFlags = Flags<ErrorFlag>;
diff --git a/src/libcamera/request.cpp b/src/libcamera/request.cpp
index 8b82757ea7e3..509ed4ca6ed5 100644
--- a/src/libcamera/request.cpp
+++ b/src/libcamera/request.cpp
@@ -339,10 +339,15 @@ void Request::Private::timeout()
  * Flags to report non-fatal errors
  * \var Request::NoError
  * No error
+ *
  * \var Request::ControlError
  * Control Error. At least on control was not able to be applied to the device.
  * The application should compare the metadata to the requested control values
  * to check which controls weren't applied.
+ *
+ * \var Request::PFCError
+ * A per-frame-control error has occured. Controls that were expected to be set
+ * during the processing of this request were not processed in time.
  */
 
 /**
-- 
2.34.1