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authorJacopo Mondi <jacopo.mondi@ideasonboard.com>2023-05-29 14:39:25 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2023-06-06 18:17:35 +0300
commitdb86713ec17978cd4d42b74cece5be34aaa6a693 (patch)
treeea4bd916b93216cf4a1dd3c984d9e30303100dc0 /src
parent0a37c203da58b3c23c011d8233c16c6063e3cb86 (diff)
ipa: ipu3: agc: Drop hard-codec analogue gain max
As the sensor's analogue gain range is known, drop the arbitrary maximum limit for the sensor analogue gain. Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Tested-by: Daniel Scally <dan.scally@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src')
-rw-r--r--src/ipa/ipu3/algorithms/agc.cpp7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/ipa/ipu3/algorithms/agc.cpp b/src/ipa/ipu3/algorithms/agc.cpp
index b5309bdb..606a237a 100644
--- a/src/ipa/ipu3/algorithms/agc.cpp
+++ b/src/ipa/ipu3/algorithms/agc.cpp
@@ -47,9 +47,8 @@ namespace ipa::ipu3::algorithms {
LOG_DEFINE_CATEGORY(IPU3Agc)
-/* Limits for analogue gain values */
+/* Minimum limit for analogue gain value */
static constexpr double kMinAnalogueGain = 1.0;
-static constexpr double kMaxAnalogueGain = 8.0;
/* \todo Honour the FrameDurationLimits control instead of hardcoding a limit */
static constexpr utils::Duration kMaxShutterSpeed = 60ms;
@@ -97,10 +96,10 @@ int Agc::configure(IPAContext &context,
kMaxShutterSpeed);
minAnalogueGain_ = std::max(configuration.agc.minAnalogueGain, kMinAnalogueGain);
- maxAnalogueGain_ = std::min(configuration.agc.maxAnalogueGain, kMaxAnalogueGain);
+ maxAnalogueGain_ = configuration.agc.maxAnalogueGain;
/* Configure the default exposure and gain. */
- activeState.agc.gain = std::max(minAnalogueGain_, kMinAnalogueGain);
+ activeState.agc.gain = minAnalogueGain_;
activeState.agc.exposure = 10ms / configuration.sensor.lineDuration;
frameCount_ = 0;