diff options
| author | Milan Zamazal <mzamazal@redhat.com> | 2025-03-27 19:59:44 +0100 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2025-03-28 02:09:16 +0200 |
| commit | 485a807dcb5845a8438d3d84ce25bc38098785c4 (patch) | |
| tree | 9621b59e92696292b56e89a2116ac9f921c0098f /src/ipa/simple/algorithms | |
| parent | 1375b07edea987856f2cb5cb4cdf4e705411777a (diff) | |
ipa: simple: Report exposure in metadata
Report exposure and gain in metadata.
This is more complicated than it could be expected because the exposure
value should be in microseconds but it's handled using V4L2_CID_EXPOSURE
control, which doesn't specify the unit, see
https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html.
So the unit conversion is done in the way rkisp1 IPA uses.
This requires getting and passing IPACameraSensorInfo around. To avoid
naming confusion and to improve consistency with rkisp1 IPA,
sensorCtrlInfoMap parameter is renamed to sensorControls.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/ipa/simple/algorithms')
| -rw-r--r-- | src/ipa/simple/algorithms/agc.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/ipa/simple/algorithms/agc.cpp b/src/ipa/simple/algorithms/agc.cpp index 72aade14..c46bb0eb 100644 --- a/src/ipa/simple/algorithms/agc.cpp +++ b/src/ipa/simple/algorithms/agc.cpp @@ -11,6 +11,8 @@ #include <libcamera/base/log.h> +#include "control_ids.h" + namespace libcamera { LOG_DEFINE_CATEGORY(IPASoftExposure) @@ -97,10 +99,15 @@ void Agc::updateExposure(IPAContext &context, IPAFrameContext &frameContext, dou void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame, - [[maybe_unused]] IPAFrameContext &frameContext, + IPAFrameContext &frameContext, const SwIspStats *stats, - [[maybe_unused]] ControlList &metadata) + ControlList &metadata) { + utils::Duration exposureTime = + context.configuration.agc.lineDuration * frameContext.sensor.exposure; + metadata.set(controls::ExposureTime, exposureTime.get<std::micro>()); + metadata.set(controls::AnalogueGain, frameContext.sensor.gain); + /* * Calculate Mean Sample Value (MSV) according to formula from: * https://www.araa.asn.au/acra/acra2007/papers/paper84final.pdf |