[libcamera-devel] [PATCH v3 05/11] android: camera_device: Generate RAW resolutions

[Hirokazu Honda]

On Thu, Sep 10, 2020 at 7:48 PM Niklas Söderlund
<niklas.soderlund at ragnatech.se> wrote:
>
> Hi Jacopo,
>
> Thanks for your patch.
>
> On 2020-09-08 15:41:36 +0200, Jacopo Mondi wrote:
> > The resolutions supported for the RAW formats cannot be tested from
> > a list of known sizes like the processed ones. This is mainly due to the
> > fact RAW streams are produced by capturing frames at the CSI-2 receiver
> > output and their size corresponds to the sensor's native sizes.
> >
> > In order to obtain the RAW frame size generate a temporary
> > CameraConfiguration for the Role::StillCaptureRAW role and inspect the
> > map of StreamFormats returned by the pipeline handler.
> >
> > Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> > Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
> > Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
>
> Reviewed-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
>
> > ---
> >  src/android/camera_device.cpp | 23 ++++++++++++++++++++---
> >  src/android/camera_device.h   |  2 ++
> >  2 files changed, 22 insertions(+), 3 deletions(-)
> >
> > diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
> > index 9d460906ab08..5f4b95987615 100644
> > --- a/src/android/camera_device.cpp
> > +++ b/src/android/camera_device.cpp
> > @@ -313,6 +313,17 @@ std::vector<Size> CameraDevice::filterYUVResolutions(CameraConfiguration *camera
> >       return supportedResolutions;
> >  }
> >
> > +std::vector<Size> CameraDevice::filterRawResolutions(const libcamera::PixelFormat &pixelFormat)

nit: This function should be more getRawResolutions() because it doesn't filter?

Reviewed-by: Hirokazu Honda <hiroh at chromium.org>
> > +{
> > +     std::unique_ptr<CameraConfiguration> cameraConfig =
> > +             camera_->generateConfiguration({ StillCaptureRaw });
> > +     StreamConfiguration &cfg = cameraConfig->at(0);
> > +     const StreamFormats &formats = cfg.formats();
> > +     std::vector<Size> supportedResolutions = formats.sizes(pixelFormat);
> > +
> > +     return supportedResolutions;
> > +}
> > +
> >  /*
> >   * Initialize the format conversion map to translate from Android format
> >   * identifier to libcamera pixel formats and fill in the list of supported
> > @@ -457,9 +468,15 @@ int CameraDevice::initializeStreamConfigurations()
> >                               << camera3Format.name << " to "
> >                               << mappedFormat.toString();
> >
> > -             std::vector<Size> resolutions = filterYUVResolutions(cameraConfig.get(),
> > -                                                                  mappedFormat,
> > -                                                                  cameraResolutions);
> > +             std::vector<Size> resolutions;
> > +             const PixelFormatInfo &info = PixelFormatInfo::info(mappedFormat);
> > +             if (info.colourEncoding == PixelFormatInfo::ColourEncodingRAW)
> > +                     resolutions = filterRawResolutions(mappedFormat);
> > +             else
> > +                     resolutions = filterYUVResolutions(cameraConfig.get(),
> > +                                                        mappedFormat,
> > +                                                        cameraResolutions);
> > +
> >               for (const Size &res : resolutions) {
> >                       streamConfigurations_.push_back({ res, androidFormat });
> >
> > diff --git a/src/android/camera_device.h b/src/android/camera_device.h
> > index 359a163ebab9..dc0ee664d443 100644
> > --- a/src/android/camera_device.h
> > +++ b/src/android/camera_device.h
> > @@ -97,6 +97,8 @@ private:
> >       filterYUVResolutions(libcamera::CameraConfiguration *cameraConfig,
> >                            const libcamera::PixelFormat &pixelFormat,
> >                            const std::vector<libcamera::Size> &resolutions);
> > +     std::vector<libcamera::Size>
> > +     filterRawResolutions(const libcamera::PixelFormat &pixelFormat);
> >
> >       std::tuple<uint32_t, uint32_t> calculateStaticMetadataSize();
> >       libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer);
> > --
> > 2.28.0
> >
> > _______________________________________________
> > libcamera-devel mailing list
> > libcamera-devel at lists.libcamera.org
> > https://lists.libcamera.org/listinfo/libcamera-devel
>
> --
> Regards,
> Niklas Söderlund
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