[libcamera-devel] [PATCH v2 4/4] android: camera_device: Initialize pixel array properties

[Hirokazu Honda]

On Wed, Dec 9, 2020 at 6:04 PM Jacopo Mondi <jacopo at jmondi.org> wrote:
>
> Hi Hiro,
>
> On Wed, Dec 09, 2020 at 04:26:02PM +0900, Hirokazu Honda wrote:
> > Camera service on chromeos fails starting from this patch.
>
> I wonder why I haven't noticed. I probable have run cros_camera_test
> only :/
>
> > Looks like our camera HAL implementation requires the entry of
> > ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE.
> > Shall we add else-statement to the if-statement?
> > That is,
> >
> > @@ -748,6 +754,13 @@ const camera_metadata_t *CameraDevice::getStaticMetadata()
> >                 };
> >                 staticMetadata_->addEntry(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
> >                                           data.data(), data.size());
> > +       } else {
> > +               int32_t sensorSizes[] = {
> > +                       0, 0, 2560, 1920,
> > +               };
> > +               staticMetadata_->addEntry(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
> > +                                         &sensorSizes, 4);
> > +
> >         }
> >
> > With this change, camera on chromeos can start.
> > What do you think?
>
> That's the million dollar question. Should the HAL try to default to
> some arbitrary values properties which are not provided by the sensor
> driver (the ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE is basically
> retrieved from the V4L2_SEL_TGT_CROP_DEFAULT selection target).
>
> If you ask me, the drivers should be fixed. It's a trivial operation
> and makes sure we don't report arbitrary values to the Android
> framework.
>

+Hanlin Chen +Tomasz Figa
Tomasz, can you take a look the driver implementation on soraka-libcamera?

Regards,
-Hiro

> Thanks
>    j
>
> >
> > Best Regards,
> > -Hiro
> >
> > On Wed, Dec 2, 2020 at 10:54 PM Jacopo Mondi <jacopo at jmondi.org> wrote:
> > >
> > > Initialize pixel array properties in the Android camera HAL
> > > inspecting the camera properties.
> > >
> > > If the camera does not provide any suitable property, not static
> > > metadata is registered to the Android framework.
> > >
> > > Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> > > Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
> > > ---
> > >  src/android/camera_device.cpp | 33 +++++++++++++++++++++++----------
> > >  1 file changed, 23 insertions(+), 10 deletions(-)
> > >
> > > diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
> > > index 675af5705055..017a15cac284 100644
> > > --- a/src/android/camera_device.cpp
> > > +++ b/src/android/camera_device.cpp
> > > @@ -593,6 +593,7 @@ const camera_metadata_t *CameraDevice::getStaticMetadata()
> > >         }
> > >
> > >         const ControlInfoMap &controlsInfo = camera_->controls();
> > > +       const ControlList &properties = camera_->properties();
> > >
> > >         /* Color correction static metadata. */
> > >         {
> > > @@ -725,17 +726,29 @@ const camera_metadata_t *CameraDevice::getStaticMetadata()
> > >         staticMetadata_->addEntry(ANDROID_JPEG_MAX_SIZE, &maxJpegBufferSize_, 1);
> > >
> > >         /* Sensor static metadata. */
> > > -       int32_t pixelArraySize[] = {
> > > -               2592, 1944,
> > > -       };
> > > -       staticMetadata_->addEntry(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
> > > -                                 &pixelArraySize, 2);
> > > +       if (properties.contains(properties::PixelArraySize)) {
> > > +               const Size &size =
> > > +                       properties.get<Size>(properties::PixelArraySize);
> > > +               std::vector<int32_t> data{
> > > +                       static_cast<int32_t>(size.width),
> > > +                       static_cast<int32_t>(size.height),
> > > +               };
> > > +               staticMetadata_->addEntry(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
> > > +                                         data.data(), data.size());
> > > +       }
> > >
> > > -       int32_t sensorSizes[] = {
> > > -               0, 0, 2560, 1920,
> > > -       };
> > > -       staticMetadata_->addEntry(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
> > > -                                 &sensorSizes, 4);
> > > +       if (properties.contains(properties::PixelArrayActiveAreas)) {
> > > +               const Span<const Rectangle> &rects =
> > > +                       properties.get<Span<const Rectangle>>(properties::PixelArrayActiveAreas);
> > > +               std::vector<int32_t> data{
> > > +                       static_cast<int32_t>(rects[0].x),
> > > +                       static_cast<int32_t>(rects[0].y),
> > > +                       static_cast<int32_t>(rects[0].width),
> > > +                       static_cast<int32_t>(rects[0].height),
> > > +               };
> > > +               staticMetadata_->addEntry(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
> > > +                                         data.data(), data.size());
> > > +       }
> > >
> > >         int32_t sensitivityRange[] = {
> > >                 32, 2400,
> > > --
> > > 2.29.1
> > >
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