From e744c9adb02f5d82773ff897e6b72ac56bff70cf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= Date: Tue, 24 Mar 2020 21:15:28 +0100 Subject: libcamera: pipeline: rkisp1: Queue parameters even if they are not ready MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If the IPA has not filled in the parameters buffer still queue it to hardware. Not queuing the buffer results in the pipeline and hardware going out of sync. This is not a permanent fix of the problem and a todo is added to fix it properly. This change does not make the situation worse as the state of the pipeline is just as unknown as if no param buffer is queued as if one with old content in it. Signed-off-by: Niklas Söderlund Acked-by: Laurent Pinchart --- src/libcamera/pipeline/rkisp1/rkisp1.cpp | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'src/libcamera/pipeline/rkisp1/rkisp1.cpp') diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp index 2f909cef..3d37677f 100644 --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp @@ -351,13 +351,23 @@ protected: if (!info) LOG(RkISP1, Fatal) << "Frame not known"; - if (info->paramFilled) - pipe_->param_->queueBuffer(info->paramBuffer); - else + /* + * \todo: If parameters are not filled a better method to handle + * the situation than queuing a buffer with unknown content + * should be used. + * + * It seems excessive to keep an internal zeroed scratch + * parameters buffer around as this should not happen unless the + * devices is under too much load. Perhaps failing the request + * and returning it to the application with an error code is + * better than queue it to hardware? + */ + if (!info->paramFilled) LOG(RkISP1, Error) << "Parameters not ready on time for frame " - << frame() << ", ignore parameters."; + << frame(); + pipe_->param_->queueBuffer(info->paramBuffer); pipe_->stat_->queueBuffer(info->statBuffer); pipe_->video_->queueBuffer(info->videoBuffer); } -- cgit v1.2.1