[libcamera-devel] [PATCH v2 3/3] android: camera_stream: Add documentation

Jacopo Mondi jacopo at jmondi.org
Wed Oct 14 20:12:44 CEST 2020


Hi Laurent,

On Mon, Oct 12, 2020 at 02:33:08AM +0300, Laurent Pinchart wrote:
> Hi Jacopo,
>
> Thank you for the patch.
>
> On Sat, Oct 10, 2020 at 11:58:30AM +0200, Jacopo Mondi wrote:
> > Add a brief documentation block to the CameraStream class.
> >
> > Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
> > ---
> >  src/android/camera_stream.cpp | 21 +++++++++++++++++++++
> >  src/android/camera_stream.h   |  5 -----
> >  2 files changed, 21 insertions(+), 5 deletions(-)
> >
> > diff --git a/src/android/camera_stream.cpp b/src/android/camera_stream.cpp
> > index eac1480530f8..d8e45c2a274d 100644
> > --- a/src/android/camera_stream.cpp
> > +++ b/src/android/camera_stream.cpp
> > @@ -17,6 +17,27 @@ using namespace libcamera;
> >
> >  LOG_DECLARE_CATEGORY(HAL);
> >
> > +/*
>
> /* or /** ? It doesn't matter much in practice as src/android/ is not
> parsed by doxygen.
>

If I'm not mistaken we use /* in the HAL as, even if we retain the
doxygen syntax, it is not actually parsed by it.

> > + * \class CameraStream
> > + * \brief Map a camera3_stream_t to a StreamConfiguration
> > + *
> > + * The CameraStream class maps a camera3_stream_t provided by Android
> > + * camera framework to a libcamera::StreamConfiguration.
> > + *
> > + * The StreamConfiguration is represented by its index as recorded in the
> > + * CameraConfiguration and not by pointer as StreamConfiguration is subject to
> > + * relocation.
> > + *
> > + * A single StreamConfiguration may be used to deliver one or more streams to
> > + * the Android framework. The mapping type between a camera3 stream to a
> > + * StreamConfiguration is described by the CameraStream::Type.
> > + *
> > + * CameraStream handles all the aspects of producing a stream with the size
> > + * and format requested by the camera3 stream from the data produced by
> > + * the associated libcamera::Stream, including the creation of the encoder
> > + * and buffer allocation.
> > + */
> > +
>
> A useful addition for readers who are not familiar with the code.
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
>
> >  CameraStream::CameraStream(CameraDevice *cameraDevice, Type type,
> >  			   camera3_stream_t *camera3Stream, unsigned int index)
> >  	: cameraDevice_(cameraDevice), type_(type),
> > diff --git a/src/android/camera_stream.h b/src/android/camera_stream.h
> > index 8df0101c403c..47f3fc61ac2c 100644
> > --- a/src/android/camera_stream.h
> > +++ b/src/android/camera_stream.h
> > @@ -128,11 +128,6 @@ private:
> >  	libcamera::CameraConfiguration *config_;
> >  	Type type_;
> >  	camera3_stream_t *camera3Stream_;
> > -	/*
> > -	 * The index of the libcamera StreamConfiguration as added during
> > -	 * configureStreams(). A single libcamera Stream may be used to deliver
> > -	 * one or more streams to the Android framework.
> > -	 */
> >  	unsigned int index_;
> >
> >  	std::unique_ptr<Encoder> encoder_;
>
> --
> Regards,
>
> Laurent Pinchart


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