ipa: libipa: algorithm: Add queueRequest() to the Algorithm class

Add queueRequest() function to the Algorithm class. The queueRequest() function
provides controls values coming from the application to each algorithm.
Each algorithm is responsible for retrieving the controls associated to them.

Signed-off-by: Florian Sylvestre <fsylvestre@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/ipa/libipa/algorithm.cpp b/src/ipa/libipa/algorithm.cpp
index 8549fe3f..38200e57 100644
--- a/src/ipa/libipa/algorithm.cpp
+++ b/src/ipa/libipa/algorithm.cpp
@@ -82,6 +82,22 @@ namespace ipa {
  */
 
 /**
+ * \fn Algorithm::queueRequest()
+ * \brief Provide control values to the algorithm
+ * \param[in] context The shared IPA context
+ * \param[in] frame The frame number to apply the control values
+ * \param[in] controls The list of user controls
+ *
+ * This function is called for each request queued to the camera. It provides
+ * the controls stored in the request to the algorithm. The \a frame number
+ * is the Request sequence number and identifies the desired corresponding
+ * frame to target for the controls to take effect.
+ *
+ * Algorithms shall read the applicable controls and store their value for later
+ * use during frame processing.
+ */
+
+/**
  * \fn Algorithm::process()
  * \brief Process ISP statistics, and run algorithm operations
  * \param[in] context The shared IPA context