diff options
Diffstat (limited to 'src/ipa/simple/algorithms/blc.cpp')
| -rw-r--r-- | src/ipa/simple/algorithms/blc.cpp | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/src/ipa/simple/algorithms/blc.cpp b/src/ipa/simple/algorithms/blc.cpp index 1d7d370b..8c1e9ed0 100644 --- a/src/ipa/simple/algorithms/blc.cpp +++ b/src/ipa/simple/algorithms/blc.cpp @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: LGPL-2.1-or-later */ /* - * Copyright (C) 2024, Red Hat Inc. + * Copyright (C) 2024-2025, Red Hat Inc. * * Black level handling */ @@ -11,6 +11,8 @@ #include <libcamera/base/log.h> +#include "control_ids.h" + namespace libcamera { namespace ipa::soft::algorithms { @@ -49,13 +51,20 @@ void BlackLevel::process(IPAContext &context, [[maybe_unused]] const uint32_t frame, IPAFrameContext &frameContext, const SwIspStats *stats, - [[maybe_unused]] ControlList &metadata) + ControlList &metadata) { + /* Assign each of the R G G B channels as the same black level. */ + const int32_t blackLevel = context.activeState.blc.level * 256; + const int32_t blackLevels[] = { + blackLevel, blackLevel, blackLevel, blackLevel + }; + metadata.set(controls::SensorBlackLevels, blackLevels); + if (context.configuration.black.level.has_value()) return; - if (frameContext.sensor.exposure == exposure_ && - frameContext.sensor.gain == gain_) { + if (frameContext.sensor.exposure == context.activeState.blc.lastExposure && + frameContext.sensor.gain == context.activeState.blc.lastGain) { return; } @@ -79,8 +88,8 @@ void BlackLevel::process(IPAContext &context, seen += histogram[i]; if (seen >= pixelThreshold) { context.activeState.blc.level = i * histogramRatio; - exposure_ = frameContext.sensor.exposure; - gain_ = frameContext.sensor.gain; + context.activeState.blc.lastExposure = frameContext.sensor.exposure; + context.activeState.blc.lastGain = frameContext.sensor.gain; LOG(IPASoftBL, Debug) << "Auto-set black level: " << i << "/" << SwIspStats::kYHistogramSize |