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-rw-r--r--src/libcamera/pipeline/ipu3/ipu3.cpp29
1 files changed, 28 insertions, 1 deletions
diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index a7be2c54..00da2bb2 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -889,6 +889,7 @@ int PipelineHandlerIPU3::initControls(IPU3CameraData *data)
return ret;
ControlInfoMap::Map controls = IPU3Controls;
+ const ControlInfoMap &sensorControls = sensor->controls();
/*
* Compute exposure time limits.
@@ -900,7 +901,6 @@ int PipelineHandlerIPU3::initControls(IPU3CameraData *data)
*/
double lineDuration = sensorInfo.lineLength
/ (sensorInfo.pixelRate / 1e6);
- const ControlInfoMap &sensorControls = sensor->controls();
const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second;
int32_t minExposure = v4l2Exposure.min().get<int32_t>() * lineDuration;
int32_t maxExposure = v4l2Exposure.max().get<int32_t>() * lineDuration;
@@ -916,6 +916,33 @@ int PipelineHandlerIPU3::initControls(IPU3CameraData *data)
defExposure);
/*
+ * Compute the frame duration limits.
+ *
+ * The frame length is computed assuming a fixed line length combined
+ * with the vertical frame sizes.
+ */
+ const ControlInfo &v4l2HBlank = sensorControls.find(V4L2_CID_HBLANK)->second;
+ uint32_t hblank = v4l2HBlank.def().get<int32_t>();
+ uint32_t lineLength = sensorInfo.outputSize.width + hblank;
+
+ const ControlInfo &v4l2VBlank = sensorControls.find(V4L2_CID_VBLANK)->second;
+ std::array<uint32_t, 3> frameHeights{
+ v4l2VBlank.min().get<int32_t>() + sensorInfo.outputSize.height,
+ v4l2VBlank.max().get<int32_t>() + sensorInfo.outputSize.height,
+ v4l2VBlank.def().get<int32_t>() + sensorInfo.outputSize.height,
+ };
+
+ std::array<int64_t, 3> frameDurations;
+ for (unsigned int i = 0; i < frameHeights.size(); ++i) {
+ uint64_t frameSize = lineLength * frameHeights[i];
+ frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U);
+ }
+
+ controls[&controls::FrameDurations] = ControlInfo(frameDurations[0],
+ frameDurations[1],
+ frameDurations[2]);
+
+ /*
* Compute the scaler crop limits.
*
* Initialize the control use the 'Viewfinder' configuration (1280x720)