[PATCH v4 7/7] pipeline: rpi: Handler controls::rpi::ScalerCrops

Naushir Patuck naush at raspberrypi.com
Mon Nov 4 10:05:04 CET 2024


Hi all,

One last tag needed on this patch and the series can then be merged.

Regards,
Naush

On Thu, 31 Oct 2024 at 09:52, Naushir Patuck <naush at raspberrypi.com> wrote:
>
> Handle multiple scaler crops being set through the rpi::ScalerCrops
> control. We now populate the cropParams_ map in the loop where we handle
> the output stream configuration items. The key of this map is the index
> of the stream configuration structure set by the application. This will
> also be the same index used to specify the crop rectangles through the
> ScalerCrops control.
>
> CameraData::applyScalerCrop() has been adapted to look at either
> controls::ScalerCrop or controls::rpi::ScalerCrops. The latter takes
> priority over the former. If only controls::ScalerCrop is provided, the
> pipeline handler will apply the same scaler crop to all output streams.
>
> Finally return all crops through the same ScalerCrops control via
> request metadata. The first configure stream's crop rectangle is also
> returned via the ScalerCrop control in the request metadata.
>
> Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
> Reviewed-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
> ---
>  .../pipeline/rpi/common/pipeline_base.cpp     | 77 +++++++++++++++----
>  1 file changed, 60 insertions(+), 17 deletions(-)
>
> diff --git a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
> index 267e6bd9cd70..917c45b3f052 100644
> --- a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
> +++ b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
> @@ -181,12 +181,14 @@ CameraConfiguration::Status RPiCameraConfiguration::validate()
>
>         rawStreams_.clear();
>         outStreams_.clear();
> +       unsigned int rawStreamIndex = 0;
> +       unsigned int outStreamIndex = 0;
>
> -       for (const auto &[index, cfg] : utils::enumerate(config_)) {
> +       for (auto &cfg : config_) {
>                 if (PipelineHandlerBase::isRaw(cfg.pixelFormat))
> -                       rawStreams_.emplace_back(index, &cfg);
> +                       rawStreams_.emplace_back(rawStreamIndex++, &cfg);
>                 else
> -                       outStreams_.emplace_back(index, &cfg);
> +                       outStreams_.emplace_back(outStreamIndex++, &cfg);
>         }
>
>         /* Sort the streams so the highest resolution is first. */
> @@ -565,10 +567,24 @@ int PipelineHandlerBase::configure(Camera *camera, CameraConfiguration *config)
>         const auto cropParamsIt = data->cropParams_.find(0);
>         if (cropParamsIt != data->cropParams_.end()) {
>                 const CameraData::CropParams &cropParams = cropParamsIt->second;
> -               /* Add the ScalerCrop control limits based on the current mode. */
> +               /*
> +                * Add the ScalerCrop control limits based on the current mode and
> +                * the first configured stream.
> +                */
>                 Rectangle ispMinCrop = data->scaleIspCrop(Rectangle(cropParams.ispMinCropSize));
>                 ctrlMap[&controls::ScalerCrop] = ControlInfo(ispMinCrop, data->sensorInfo_.analogCrop,
>                                                              data->scaleIspCrop(cropParams.ispCrop));
> +               if (data->cropParams_.size() == 2) {
> +                       /*
> +                        * The control map for rpi::ScalerCrops has the min value
> +                        * as the default crop for stream 0, max value as the default
> +                        * value for stream 1.
> +                        */
> +                       ctrlMap[&controls::rpi::ScalerCrops] =
> +                               ControlInfo(data->scaleIspCrop(data->cropParams_.at(0).ispCrop),
> +                                           data->scaleIspCrop(data->cropParams_.at(1).ispCrop),
> +                                           ctrlMap[&controls::ScalerCrop].def());
> +               }
>         }
>
>         data->controlInfo_ = ControlInfoMap(std::move(ctrlMap), result.controlInfo.idmap());
> @@ -1295,11 +1311,30 @@ Rectangle CameraData::scaleIspCrop(const Rectangle &ispCrop) const
>
>  void CameraData::applyScalerCrop(const ControlList &controls)
>  {
> -       const auto &scalerCrop = controls.get<Rectangle>(controls::ScalerCrop);
> -       const auto cropParamsIt = cropParams_.find(0);
> -       if (scalerCrop && cropParamsIt != cropParams_.end()) {
> -               Rectangle nativeCrop = *scalerCrop;
> -               CropParams &cropParams = cropParamsIt->second;
> +       const auto &scalerCropRPi = controls.get<Span<const Rectangle>>(controls::rpi::ScalerCrops);
> +       const auto &scalerCropCore = controls.get<Rectangle>(controls::ScalerCrop);
> +       std::vector<Rectangle> scalerCrops;
> +
> +       /*
> +        * First thing to do is create a vector of crops to apply to each ISP output
> +        * based on either controls::ScalerCrop or controls::rpi::ScalerCrops if
> +        * present.
> +        *
> +        * If controls::rpi::ScalerCrops is preset, apply the given crops to the
> +        * ISP output streams, indexed by the same order in which they had been
> +        * configured. This is not the same as the ISP output index. Otherwise
> +        * if controls::ScalerCrop is present, apply the same crop to all ISP
> +        * output streams.
> +        */
> +       for (unsigned int i = 0; i < cropParams_.size(); i++) {
> +               if (scalerCropRPi && i < scalerCropRPi->size())
> +                       scalerCrops.push_back(scalerCropRPi->data()[i]);
> +               else if (scalerCropCore)
> +                       scalerCrops.push_back(*scalerCropCore);
> +       }
> +
> +       for (auto const &[i, scalerCrop] : utils::enumerate(scalerCrops)) {
> +               Rectangle nativeCrop = scalerCrop;
>
>                 if (!nativeCrop.width || !nativeCrop.height)
>                         nativeCrop = { 0, 0, 1, 1 };
> @@ -1315,13 +1350,13 @@ void CameraData::applyScalerCrop(const ControlList &controls)
>                  * 2. With the same mid-point, if possible.
>                  * 3. But it can't go outside the sensor area.
>                  */
> -               Size minSize = cropParams.ispMinCropSize.expandedToAspectRatio(nativeCrop.size());
> +               Size minSize = cropParams_.at(i).ispMinCropSize.expandedToAspectRatio(nativeCrop.size());
>                 Size size = ispCrop.size().expandedTo(minSize);
>                 ispCrop = size.centeredTo(ispCrop.center()).enclosedIn(Rectangle(sensorInfo_.outputSize));
>
> -               if (ispCrop != cropParams.ispCrop) {
> -                       cropParams.ispCrop = ispCrop;
> -                       platformSetIspCrop(cropParams.ispIndex, ispCrop);
> +               if (ispCrop != cropParams_.at(i).ispCrop) {
> +                       cropParams_.at(i).ispCrop = ispCrop;
> +                       platformSetIspCrop(cropParams_.at(i).ispIndex, ispCrop);
>                 }
>         }
>  }
> @@ -1478,10 +1513,18 @@ void CameraData::fillRequestMetadata(const ControlList &bufferControls, Request
>         request->metadata().set(controls::SensorTimestamp,
>                                 bufferControls.get(controls::SensorTimestamp).value_or(0));
>
> -       const auto cropParamsIt = cropParams_.find(0);
> -       if (cropParamsIt != cropParams_.end())
> -               request->metadata().set(controls::ScalerCrop,
> -                                       scaleIspCrop(cropParamsIt->second.ispCrop));
> +       if (cropParams_.size()) {
> +               std::vector<Rectangle> crops;
> +
> +               for (auto const &[k, v] : cropParams_)
> +                       crops.push_back(scaleIspCrop(v.ispCrop));
> +
> +               request->metadata().set(controls::ScalerCrop, crops[0]);
> +               if (crops.size() > 1) {
> +                       request->metadata().set(controls::rpi::ScalerCrops,
> +                                               Span<const Rectangle>(crops.data(), crops.size()));
> +               }
> +       }
>  }
>
>  } /* namespace libcamera */
> --
> 2.34.1
>


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