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ipa: ipu3: agc: Return the inter-quantile mean from measureBrightness()

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The inter-quantile mean is a value that is computed as part of the AGC
run. It doesn't need to be stored in a member variable. Return it from
measureBrightness(), which makes the flow of data easier to follow.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2021-11-16 16:29:23 +02:00
parent 6e02f67457
commit a2b4975a1c
2 changed files with 33 additions and 29 deletions
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9
src/ipa/ipu3/algorithms/agc.h
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@ -31,10 +31,11 @@ public:
void process(IPAContext &context, const ipu3_uapi_stats_3a *stats) override;
private:
void measureBrightness(const ipu3_uapi_stats_3a *stats,
const ipu3_uapi_grid_config &grid);
double measureBrightness(const ipu3_uapi_stats_3a *stats,
const ipu3_uapi_grid_config &grid) const;
void filterExposure();
void computeExposure(IPAFrameContext &frameContext, double yGain);
void computeExposure(IPAFrameContext &frameContext, double yGain,
double iqMeanGain);
double estimateLuminance(IPAFrameContext &frameContext,
const ipu3_uapi_grid_config &grid,
const ipu3_uapi_stats_3a *stats,
@ -42,8 +43,6 @@ private:
uint64_t frameCount_;
double iqMean_;
utils::Duration lineDuration_;
utils::Duration minShutterSpeed_;
utils::Duration maxShutterSpeed_;