| Message ID | 20220621230826.23906-2-laurent.pinchart@ideasonboard.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series |
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| Related | show |
Quoting Laurent Pinchart via libcamera-devel (2022-06-22 00:08:26) > The README.rst file contains the getting started instructions, but lacks > a simple way to test libcamera. Add a short section about basic cam > usage. > > Suggested-by: Pavel Machek <pavel@ucw.cz> > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > --- > Documentation/environment_variables.rst | 2 ++ > README.rst | 15 +++++++++++++++ > 2 files changed, 17 insertions(+) > > diff --git a/Documentation/environment_variables.rst b/Documentation/environment_variables.rst > index f092cbbd29c5..dcfdb1a33a32 100644 > --- a/Documentation/environment_variables.rst > +++ b/Documentation/environment_variables.rst > @@ -86,6 +86,8 @@ global environment: > :~$ export LIBCAMERA_LOG_LEVELS='Camera:DEBUG,V4L2:DEBUG' > :~$ cam --list > > +.. _log levels: > + > Log levels > ~~~~~~~~~~ > > diff --git a/README.rst b/README.rst > index f81d6e2e7867..578aa19f0f54 100644 > --- a/README.rst > +++ b/README.rst > @@ -101,6 +101,21 @@ for android: [optional] > for lc-compliance: [optional] > libevent-dev > > +Basic testing with cam utility > +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > + > +The ``cam`` utility can be used for basic testing. You can list the cameras > +detected on the system with ``cam -l``, and capture ten frames from the first > +camera and save them to disk with ``cam -c 1 --capture=10 --file``. See > +``cam -h`` for more information about the ``cam`` tool. > + > +In case of problems, a detailed debug log can be obtained from libcamera by > +setting the :ref:`LIBCAMERA_LOG_LEVELS <log levels>` environment variable: Will this try to hyperlink to a document that isn't currently available on https://libcamera.org/getting-started.html ? Other than that Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> > + > +.. code:: > + > + :~$ LIBCAMERA_LOG_LEVELS=*:DEBUG cam -l > + > Using GStreamer plugin > ~~~~~~~~~~~~~~~~~~~~~~ > > -- > Regards, > > Laurent Pinchart >
Hi Kieran, On Wed, Jun 22, 2022 at 12:23:02AM +0100, Kieran Bingham via libcamera-devel wrote: > Quoting Laurent Pinchart via libcamera-devel (2022-06-22 00:08:26) > > The README.rst file contains the getting started instructions, but lacks > > a simple way to test libcamera. Add a short section about basic cam > > usage. > > > > Suggested-by: Pavel Machek <pavel@ucw.cz> > > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > > --- > > Documentation/environment_variables.rst | 2 ++ > > README.rst | 15 +++++++++++++++ > > 2 files changed, 17 insertions(+) > > > > diff --git a/Documentation/environment_variables.rst b/Documentation/environment_variables.rst > > index f092cbbd29c5..dcfdb1a33a32 100644 > > --- a/Documentation/environment_variables.rst > > +++ b/Documentation/environment_variables.rst > > @@ -86,6 +86,8 @@ global environment: > > :~$ export LIBCAMERA_LOG_LEVELS='Camera:DEBUG,V4L2:DEBUG' > > :~$ cam --list > > > > +.. _log levels: > > + > > Log levels > > ~~~~~~~~~~ > > > > diff --git a/README.rst b/README.rst > > index f81d6e2e7867..578aa19f0f54 100644 > > --- a/README.rst > > +++ b/README.rst > > @@ -101,6 +101,21 @@ for android: [optional] > > for lc-compliance: [optional] > > libevent-dev > > > > +Basic testing with cam utility > > +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > + > > +The ``cam`` utility can be used for basic testing. You can list the cameras > > +detected on the system with ``cam -l``, and capture ten frames from the first > > +camera and save them to disk with ``cam -c 1 --capture=10 --file``. See > > +``cam -h`` for more information about the ``cam`` tool. > > + > > +In case of problems, a detailed debug log can be obtained from libcamera by > > +setting the :ref:`LIBCAMERA_LOG_LEVELS <log levels>` environment variable: > > Will this try to hyperlink to a document that isn't currently available > on https://libcamera.org/getting-started.html ? Won't this link to the "Log levels" section ? Just compiled and checked, it does :) Looks good to me Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Thanks j > > Other than that > > > Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> > > > + > > +.. code:: > > + > > + :~$ LIBCAMERA_LOG_LEVELS=*:DEBUG cam -l > > + > > Using GStreamer plugin > > ~~~~~~~~~~~~~~~~~~~~~~ > > > > -- > > Regards, > > > > Laurent Pinchart > >
On Wed, Jun 22, 2022 at 09:20:16AM +0200, Jacopo Mondi wrote: > On Wed, Jun 22, 2022 at 12:23:02AM +0100, Kieran Bingham via libcamera-devel wrote: > > Quoting Laurent Pinchart via libcamera-devel (2022-06-22 00:08:26) > > > The README.rst file contains the getting started instructions, but lacks > > > a simple way to test libcamera. Add a short section about basic cam > > > usage. > > > > > > Suggested-by: Pavel Machek <pavel@ucw.cz> > > > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > > > --- > > > Documentation/environment_variables.rst | 2 ++ > > > README.rst | 15 +++++++++++++++ > > > 2 files changed, 17 insertions(+) > > > > > > diff --git a/Documentation/environment_variables.rst b/Documentation/environment_variables.rst > > > index f092cbbd29c5..dcfdb1a33a32 100644 > > > --- a/Documentation/environment_variables.rst > > > +++ b/Documentation/environment_variables.rst > > > @@ -86,6 +86,8 @@ global environment: > > > :~$ export LIBCAMERA_LOG_LEVELS='Camera:DEBUG,V4L2:DEBUG' > > > :~$ cam --list > > > > > > +.. _log levels: > > > + > > > Log levels > > > ~~~~~~~~~~ > > > > > > diff --git a/README.rst b/README.rst > > > index f81d6e2e7867..578aa19f0f54 100644 > > > --- a/README.rst > > > +++ b/README.rst > > > @@ -101,6 +101,21 @@ for android: [optional] > > > for lc-compliance: [optional] > > > libevent-dev > > > > > > +Basic testing with cam utility > > > +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > + > > > +The ``cam`` utility can be used for basic testing. You can list the cameras > > > +detected on the system with ``cam -l``, and capture ten frames from the first > > > +camera and save them to disk with ``cam -c 1 --capture=10 --file``. See > > > +``cam -h`` for more information about the ``cam`` tool. > > > + > > > +In case of problems, a detailed debug log can be obtained from libcamera by > > > +setting the :ref:`LIBCAMERA_LOG_LEVELS <log levels>` environment variable: > > > > Will this try to hyperlink to a document that isn't currently available > > on https://libcamera.org/getting-started.html ? > > Won't this link to the "Log levels" section ? > > Just compiled and checked, it does :) It does, but only on local builds, not on the website. I'll drop the link for now. > Looks good to me > Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> > > > Other than that > > > > Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> > > > > > + > > > +.. code:: > > > + > > > + :~$ LIBCAMERA_LOG_LEVELS=*:DEBUG cam -l > > > + > > > Using GStreamer plugin > > > ~~~~~~~~~~~~~~~~~~~~~~ > > >
diff --git a/Documentation/environment_variables.rst b/Documentation/environment_variables.rst index f092cbbd29c5..dcfdb1a33a32 100644 --- a/Documentation/environment_variables.rst +++ b/Documentation/environment_variables.rst @@ -86,6 +86,8 @@ global environment: :~$ export LIBCAMERA_LOG_LEVELS='Camera:DEBUG,V4L2:DEBUG' :~$ cam --list +.. _log levels: + Log levels ~~~~~~~~~~ diff --git a/README.rst b/README.rst index f81d6e2e7867..578aa19f0f54 100644 --- a/README.rst +++ b/README.rst @@ -101,6 +101,21 @@ for android: [optional] for lc-compliance: [optional] libevent-dev +Basic testing with cam utility +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The ``cam`` utility can be used for basic testing. You can list the cameras +detected on the system with ``cam -l``, and capture ten frames from the first +camera and save them to disk with ``cam -c 1 --capture=10 --file``. See +``cam -h`` for more information about the ``cam`` tool. + +In case of problems, a detailed debug log can be obtained from libcamera by +setting the :ref:`LIBCAMERA_LOG_LEVELS <log levels>` environment variable: + +.. code:: + + :~$ LIBCAMERA_LOG_LEVELS=*:DEBUG cam -l + Using GStreamer plugin ~~~~~~~~~~~~~~~~~~~~~~
The README.rst file contains the getting started instructions, but lacks a simple way to test libcamera. Add a short section about basic cam usage. Suggested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- Documentation/environment_variables.rst | 2 ++ README.rst | 15 +++++++++++++++ 2 files changed, 17 insertions(+)