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-rw-r--r--src/ipa/raspberrypi/raspberrypi.cpp33
1 files changed, 30 insertions, 3 deletions
diff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp
index a464268b..f8d37b87 100644
--- a/src/ipa/raspberrypi/raspberrypi.cpp
+++ b/src/ipa/raspberrypi/raspberrypi.cpp
@@ -74,8 +74,8 @@ constexpr Duration controllerMinFrameDuration = 1.0s / 30.0;
/* List of controls handled by the Raspberry Pi IPA */
static const ControlInfoMap::Map ipaControls{
{ &controls::AeEnable, ControlInfo(false, true) },
- { &controls::ExposureTime, ControlInfo(0, 999999) },
- { &controls::AnalogueGain, ControlInfo(1.0f, 32.0f) },
+ { &controls::ExposureTime, ControlInfo(0, 66666) },
+ { &controls::AnalogueGain, ControlInfo(1.0f, 16.0f) },
{ &controls::AeMeteringMode, ControlInfo(controls::AeMeteringModeValues) },
{ &controls::AeConstraintMode, ControlInfo(controls::AeConstraintModeValues) },
{ &controls::AeExposureMode, ControlInfo(controls::AeExposureModeValues) },
@@ -89,7 +89,7 @@ static const ControlInfoMap::Map ipaControls{
{ &controls::Sharpness, ControlInfo(0.0f, 16.0f, 1.0f) },
{ &controls::ColourCorrectionMatrix, ControlInfo(-16.0f, 16.0f) },
{ &controls::ScalerCrop, ControlInfo(Rectangle{}, Rectangle(65535, 65535, 65535, 65535), Rectangle{}) },
- { &controls::FrameDurationLimits, ControlInfo(INT64_C(1000), INT64_C(1000000000)) },
+ { &controls::FrameDurationLimits, ControlInfo(INT64_C(33333), INT64_C(120000)) },
{ &controls::draft::NoiseReductionMode, ControlInfo(controls::draft::NoiseReductionModeValues) }
};
@@ -446,6 +446,33 @@ int IPARPi::configure(const IPACameraSensorInfo &sensorInfo,
ASSERT(controls);
*controls = std::move(ctrls);
+ /*
+ * Apply the correct limits to the exposure, gain and frame duration controls
+ * based on the current sensor mode.
+ */
+ ControlInfoMap::Map ctrlMap = ipaControls;
+ const Duration minSensorFrameDuration = mode_.min_frame_length * mode_.line_length;
+ const Duration maxSensorFrameDuration = mode_.max_frame_length * mode_.line_length;
+ ctrlMap[&controls::FrameDurationLimits] =
+ ControlInfo(static_cast<int64_t>(minSensorFrameDuration.get<std::micro>()),
+ static_cast<int64_t>(maxSensorFrameDuration.get<std::micro>()));
+
+ ctrlMap[&controls::AnalogueGain] =
+ ControlInfo(1.0f, static_cast<float>(helper_->Gain(maxSensorGainCode_)));
+
+ /*
+ * Calculate the max exposure limit from the frame duration limit as V4L2
+ * will limit the maximum control value based on the current VBLANK value.
+ */
+ Duration maxShutter = Duration::max();
+ helper_->GetVBlanking(maxShutter, minSensorFrameDuration, maxSensorFrameDuration);
+ const uint32_t exposureMin = sensorCtrls_.at(V4L2_CID_EXPOSURE).min().get<int32_t>();
+
+ ctrlMap[&controls::ExposureTime] =
+ ControlInfo(static_cast<int32_t>(helper_->Exposure(exposureMin).get<std::micro>()),
+ static_cast<int32_t>(maxShutter.get<std::micro>()));
+
+ result->controlInfo = ControlInfoMap(std::move(ctrlMap), controls::controls);
return 0;
}