diff options
| author | Naushir Patuck <naush@raspberrypi.com> | 2023-03-27 08:35:28 +0100 |
|---|---|---|
| committer | Kieran Bingham <kieran.bingham@ideasonboard.com> | 2023-03-28 14:11:41 +0100 |
| commit | d6e85bdfe944354e3e4243ec8f0b5717b350f661 (patch) | |
| tree | 7305ca8b03e15ec12171bfe7b02ac003f488a37c /src/ipa | |
| parent | d942bdc913c5a7f0895bfcb0180db3f279be246e (diff) | |
ipa: raspberrypi: Add sensor mode limits to CameraMode
Add fields in the CameraMode structure to capture the mode specific
limits for analogue gain and shutter speed. For convenience, also add
fields for minimum and maximum frame durations.
Populate these new fields when setting up the CameraMode structure.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'src/ipa')
| -rw-r--r-- | src/ipa/raspberrypi/controller/camera_mode.h | 10 | ||||
| -rw-r--r-- | src/ipa/raspberrypi/raspberrypi.cpp | 16 |
2 files changed, 25 insertions, 1 deletions
diff --git a/src/ipa/raspberrypi/controller/camera_mode.h b/src/ipa/raspberrypi/controller/camera_mode.h index 94c51ddf..63b11778 100644 --- a/src/ipa/raspberrypi/controller/camera_mode.h +++ b/src/ipa/raspberrypi/controller/camera_mode.h @@ -36,9 +36,11 @@ struct CameraMode { double scaleY; /* scaling of the noise compared to the native sensor mode */ double noiseFactor; - /* minimum and maximum line time */ + /* minimum and maximum line time and frame durations */ libcamera::utils::Duration minLineLength; libcamera::utils::Duration maxLineLength; + libcamera::utils::Duration minFrameDuration; + libcamera::utils::Duration maxFrameDuration; /* any camera transform *not* reflected already in the camera tuning */ libcamera::Transform transform; /* minimum and maximum frame lengths in units of lines */ @@ -48,4 +50,10 @@ struct CameraMode { double sensitivity; /* pixel clock rate */ uint64_t pixelRate; + /* Mode specific shutter speed limits */ + libcamera::utils::Duration minShutter; + libcamera::utils::Duration maxShutter; + /* Mode specific analogue gain limits */ + double minAnalogueGain; + double maxAnalogueGain; }; diff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp index 13757955..3f1afb84 100644 --- a/src/ipa/raspberrypi/raspberrypi.cpp +++ b/src/ipa/raspberrypi/raspberrypi.cpp @@ -407,11 +407,27 @@ void IPARPi::setMode(const IPACameraSensorInfo &sensorInfo) mode_.minFrameLength = sensorInfo.minFrameLength; mode_.maxFrameLength = sensorInfo.maxFrameLength; + /* Store these for convenience. */ + mode_.minFrameDuration = mode_.minFrameLength * mode_.minLineLength; + mode_.maxFrameDuration = mode_.maxFrameLength * mode_.maxLineLength; + /* * Some sensors may have different sensitivities in different modes; * the CamHelper will know the correct value. */ mode_.sensitivity = helper_->getModeSensitivity(mode_); + + const ControlInfo &gainCtrl = sensorCtrls_.at(V4L2_CID_ANALOGUE_GAIN); + const ControlInfo &shutterCtrl = sensorCtrls_.at(V4L2_CID_EXPOSURE); + + mode_.minAnalogueGain = helper_->gain(gainCtrl.min().get<int32_t>()); + mode_.maxAnalogueGain = helper_->gain(gainCtrl.max().get<int32_t>()); + + /* Shutter speed is calculated based on the limits of the frame durations. */ + mode_.minShutter = helper_->exposure(shutterCtrl.min().get<int32_t>(), mode_.minLineLength); + mode_.maxShutter = Duration::max(); + helper_->getBlanking(mode_.maxShutter, + mode_.minFrameDuration, mode_.maxFrameDuration); } int IPARPi::configure(const IPACameraSensorInfo &sensorInfo, const IPAConfig &ipaConfig, |