diff options
| -rw-r--r-- | src/ipa/libipa/agc_mean_luminance.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/ipa/libipa/agc_mean_luminance.cpp b/src/ipa/libipa/agc_mean_luminance.cpp index 02555a44..f617fde8 100644 --- a/src/ipa/libipa/agc_mean_luminance.cpp +++ b/src/ipa/libipa/agc_mean_luminance.cpp @@ -541,6 +541,18 @@ AgcMeanLuminance::calculateNewEv(uint32_t constraintModeIndex, std::shared_ptr<ExposureModeHelper> exposureModeHelper = exposureModeHelpers_.at(exposureModeIndex); + if (effectiveExposureValue == 0s) { + LOG(AgcMeanLuminance, Error) + << "Effective exposure value is 0. This is a bug in AGC " + "and must be fixed for proper operation."; + /* + * Return an arbitrary exposure time > 0 to ensure regulation + * doesn't get stuck with 0 in case the sensor driver allows a + * min exposure of 0. + */ + return exposureModeHelper->splitExposure(10ms); + } + double gain = estimateInitialGain(); gain = constraintClampGain(constraintModeIndex, yHist, gain); |