diff options
| author | Jacopo Mondi <jacopo@jmondi.org> | 2021-01-20 12:28:10 +0100 |
|---|---|---|
| committer | Jacopo Mondi <jacopo@jmondi.org> | 2021-03-09 08:54:54 +0100 |
| commit | 02a1186536e5e266c5719afa5ef864bd1acbe861 (patch) | |
| tree | 15f6008614d0b3bbba560d23c0d46c787367284e | |
| parent | cbd4617a098afe251e9c3386ed3fa0aedb0e89ec (diff) | |
libcamera: ipu3: Register FrameDurations control
Register the FrameDurations control in the IPU3 pipeline handler
computed using the vertical blanking limits and the sensor
pixel rate as parameters.
The FrameDurations control limits should be updated everytime a new
configuration is applied to the sensor.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
| -rw-r--r-- | src/libcamera/pipeline/ipu3/ipu3.cpp | 29 |
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) |