[v4,1/3] libcamera: pipeline: Rename pipelines to a shorter name
diff mbox series

Message ID 20240503144919.2371357-2-julien.vuillaumier@nxp.com
State Accepted
Commit 5ed35fca680c531538ea242bc9a68e8f243e9050
Headers show
Series
  • Add environment variable to order pipelines match
Related show

Commit Message

Julien Vuillaumier May 3, 2024, 2:49 p.m. UTC
The PipelineHandlerFactoryBase class has a name that is
propagated to the PipelineHandler instance it creates.

In present implementation, this name comes from the
REGISTER_PIPELINE_HANDLER registration macro. It corresponds to
the stringified name of the PipelineHandler derived class.
Therefore, PipelineHandler factories and instances names can be
quite long such as "PipelineHandlerRkISP1".

A libcamera user may have to explicitly refer to a PipelineHandler
name for configuration purpose: one usage of the name can be to
define a pipeline handlers match list and their priorities.
It is desired, for user convenience, to use a short name to
designate a pipeline handler. Reusing the short pipeline names
already defined in the meson option files is an existing and
consistent way of naming pipelines.

This change adds an explicit name parameter to the
REGISTER_PIPELINE_HANDLER registration macro. That parameter is
used to define the name of a pipeline handler factory, instead of
the current pipeline handler class name.

Each pipeline registration is updated accordingly. The short name
assigned corresponds to the pipeline directory name in the
source tree. It is consistent with pipelines names used in meson.

Changing the pipeline name has an impact on the IPA modules:
each module defines a IPAModuleInfo structure. This structure has
a pipelineName member defining the pipeline handler name it shall
match with.
Therefore, each internal IPA module definition has to be changed
to have its IPAModuleInfo pipelineName name updated with the short
pipeline handler name.

In addition to this pipelineName member, the IPAModuleInfo structure
also has a name member, associated to the IPA module name.
Having renamed the pipelines to a short name, the pipeline name and
the IPA module names of the IPAModuleInfo structure are the same:
for in-tree IPA, they correspond to the respective pipeline and IPA
subdirectories in the source tree.
However the IPA name could be different, for instance with a close
source IPA implementation built out-of-tree. Thus, it makes sense to
keep the IPA name in that structure, as the 2 definitions may not
always be redundant.

Signed-off-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
---
 Documentation/guides/pipeline-handler.rst     | 4 +++-
 include/libcamera/internal/pipeline_handler.h | 4 ++--
 src/ipa/ipu3/ipu3.cpp                         | 2 +-
 src/ipa/rkisp1/rkisp1.cpp                     | 2 +-
 src/ipa/rpi/vc4/vc4.cpp                       | 2 +-
 src/ipa/simple/soft_simple.cpp                | 2 +-
 src/ipa/vimc/vimc.cpp                         | 2 +-
 src/libcamera/pipeline/imx8-isi/imx8-isi.cpp  | 2 +-
 src/libcamera/pipeline/ipu3/ipu3.cpp          | 2 +-
 src/libcamera/pipeline/mali-c55/mali-c55.cpp  | 2 +-
 src/libcamera/pipeline/rkisp1/rkisp1.cpp      | 2 +-
 src/libcamera/pipeline/rpi/vc4/vc4.cpp        | 2 +-
 src/libcamera/pipeline/simple/simple.cpp      | 2 +-
 src/libcamera/pipeline/uvcvideo/uvcvideo.cpp  | 2 +-
 src/libcamera/pipeline/vimc/vimc.cpp          | 2 +-
 src/libcamera/pipeline_handler.cpp            | 2 ++
 test/ipa/ipa_interface_test.cpp               | 2 +-
 test/ipa/ipa_module_test.cpp                  | 2 +-
 18 files changed, 22 insertions(+), 18 deletions(-)

Comments

Kieran Bingham May 9, 2024, 8:33 a.m. UTC | #1
Quoting Julien Vuillaumier (2024-05-03 15:49:17)
> The PipelineHandlerFactoryBase class has a name that is
> propagated to the PipelineHandler instance it creates.
> 
> In present implementation, this name comes from the
> REGISTER_PIPELINE_HANDLER registration macro. It corresponds to
> the stringified name of the PipelineHandler derived class.
> Therefore, PipelineHandler factories and instances names can be
> quite long such as "PipelineHandlerRkISP1".
> 
> A libcamera user may have to explicitly refer to a PipelineHandler
> name for configuration purpose: one usage of the name can be to
> define a pipeline handlers match list and their priorities.
> It is desired, for user convenience, to use a short name to
> designate a pipeline handler. Reusing the short pipeline names
> already defined in the meson option files is an existing and
> consistent way of naming pipelines.
> 
> This change adds an explicit name parameter to the
> REGISTER_PIPELINE_HANDLER registration macro. That parameter is
> used to define the name of a pipeline handler factory, instead of
> the current pipeline handler class name.
> 
> Each pipeline registration is updated accordingly. The short name
> assigned corresponds to the pipeline directory name in the
> source tree. It is consistent with pipelines names used in meson.

All of the above sounds great.

> Changing the pipeline name has an impact on the IPA modules:
> each module defines a IPAModuleInfo structure. This structure has
> a pipelineName member defining the pipeline handler name it shall
> match with.
> Therefore, each internal IPA module definition has to be changed
> to have its IPAModuleInfo pipelineName name updated with the short
> pipeline handler name.
> 
> In addition to this pipelineName member, the IPAModuleInfo structure
> also has a name member, associated to the IPA module name.
> Having renamed the pipelines to a short name, the pipeline name and
> the IPA module names of the IPAModuleInfo structure are the same:
> for in-tree IPA, they correspond to the respective pipeline and IPA
> subdirectories in the source tree.
> However the IPA name could be different, for instance with a close
> source IPA implementation built out-of-tree. Thus, it makes sense to
> keep the IPA name in that structure, as the 2 definitions may not
> always be redundant.

This was the first thing I noticed in the code ... why do we duplicate.

But it does sound like it makes sense, particularly if we want to
register or 'select' distinct IPAs which could be forseen in the future.
Even to be able to select which IPA to prefer as you have done for the
Pipeline handlers, so I do think this is worthwhile. There are other
ways we could handle this, with substring matching, or 'compatible'
strings ... but it could always be updated on top IMO if we decide to.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>


> Signed-off-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
> ---
>  Documentation/guides/pipeline-handler.rst     | 4 +++-
>  include/libcamera/internal/pipeline_handler.h | 4 ++--
>  src/ipa/ipu3/ipu3.cpp                         | 2 +-
>  src/ipa/rkisp1/rkisp1.cpp                     | 2 +-
>  src/ipa/rpi/vc4/vc4.cpp                       | 2 +-
>  src/ipa/simple/soft_simple.cpp                | 2 +-
>  src/ipa/vimc/vimc.cpp                         | 2 +-
>  src/libcamera/pipeline/imx8-isi/imx8-isi.cpp  | 2 +-
>  src/libcamera/pipeline/ipu3/ipu3.cpp          | 2 +-
>  src/libcamera/pipeline/mali-c55/mali-c55.cpp  | 2 +-
>  src/libcamera/pipeline/rkisp1/rkisp1.cpp      | 2 +-
>  src/libcamera/pipeline/rpi/vc4/vc4.cpp        | 2 +-
>  src/libcamera/pipeline/simple/simple.cpp      | 2 +-
>  src/libcamera/pipeline/uvcvideo/uvcvideo.cpp  | 2 +-
>  src/libcamera/pipeline/vimc/vimc.cpp          | 2 +-
>  src/libcamera/pipeline_handler.cpp            | 2 ++
>  test/ipa/ipa_interface_test.cpp               | 2 +-
>  test/ipa/ipa_module_test.cpp                  | 2 +-
>  18 files changed, 22 insertions(+), 18 deletions(-)
> 
> diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
> index 728e9676..7e45cdb8 100644
> --- a/Documentation/guides/pipeline-handler.rst
> +++ b/Documentation/guides/pipeline-handler.rst
> @@ -258,7 +258,7 @@ implementations for the overridden class members.
>            return false;
>     }
>  
> -   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid)
> +   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid, "vivid")
>  
>     } /* namespace libcamera */
>  
> @@ -266,6 +266,8 @@ Note that you must register the ``PipelineHandler`` subclass with the pipeline
>  handler factory using the `REGISTER_PIPELINE_HANDLER`_ macro which
>  registers it and creates a global symbol to reference the class and make it
>  available to try and match devices.
> +String "vivid" is the name assigned to the pipeline, matching the pipeline
> +subdirectory name in the source tree.

I would write 'The string "vivid" is the name .... ' but that's minor.
Could be fixed when applying if desired if everyone else is happy with
this patch.


Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>




>  
>  .. _REGISTER_PIPELINE_HANDLER: https://libcamera.org/api-html/pipeline__handler_8h.html
>  
> diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h
> index c96944f4..cc70f69c 100644
> --- a/include/libcamera/internal/pipeline_handler.h
> +++ b/include/libcamera/internal/pipeline_handler.h
> @@ -140,7 +140,7 @@ public:
>         }
>  };
>  
> -#define REGISTER_PIPELINE_HANDLER(handler) \
> -static PipelineHandlerFactory<handler> global_##handler##Factory(#handler);
> +#define REGISTER_PIPELINE_HANDLER(handler, name) \
> +static PipelineHandlerFactory<handler> global_##handler##Factory(name);
>  
>  } /* namespace libcamera */
> diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
> index 08ee6eb3..994c0eda 100644
> --- a/src/ipa/ipu3/ipu3.cpp
> +++ b/src/ipa/ipu3/ipu3.cpp
> @@ -672,7 +672,7 @@ extern "C" {
>  const struct IPAModuleInfo ipaModuleInfo = {
>         IPA_MODULE_API_VERSION,
>         1,
> -       "PipelineHandlerIPU3",
> +       "ipu3",
>         "ipu3",
>  };
>  
> diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
> index 9dc5f53c..5319c98f 100644
> --- a/src/ipa/rkisp1/rkisp1.cpp
> +++ b/src/ipa/rkisp1/rkisp1.cpp
> @@ -458,7 +458,7 @@ extern "C" {
>  const struct IPAModuleInfo ipaModuleInfo = {
>         IPA_MODULE_API_VERSION,
>         1,
> -       "PipelineHandlerRkISP1",
> +       "rkisp1",
>         "rkisp1",
>  };
>  
> diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp
> index d2159a51..11316e05 100644
> --- a/src/ipa/rpi/vc4/vc4.cpp
> +++ b/src/ipa/rpi/vc4/vc4.cpp
> @@ -583,7 +583,7 @@ extern "C" {
>  const struct IPAModuleInfo ipaModuleInfo = {
>         IPA_MODULE_API_VERSION,
>         1,
> -       "PipelineHandlerVc4",
> +       "rpi/vc4",
>         "rpi/vc4",
>  };
>  
> diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
> index b9fb58b5..39c49448 100644
> --- a/src/ipa/simple/soft_simple.cpp
> +++ b/src/ipa/simple/soft_simple.cpp
> @@ -389,7 +389,7 @@ extern "C" {
>  const struct IPAModuleInfo ipaModuleInfo = {
>         IPA_MODULE_API_VERSION,
>         0,
> -       "SimplePipelineHandler",
> +       "simple",
>         "simple",
>  };
>  
> diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp
> index 2c255778..1bda772f 100644
> --- a/src/ipa/vimc/vimc.cpp
> +++ b/src/ipa/vimc/vimc.cpp
> @@ -200,7 +200,7 @@ extern "C" {
>  const struct IPAModuleInfo ipaModuleInfo = {
>         IPA_MODULE_API_VERSION,
>         0,
> -       "PipelineHandlerVimc",
> +       "vimc",
>         "vimc",
>  };
>  
> diff --git a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> index 63082cea..f4d755c2 100644
> --- a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> +++ b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> @@ -1112,6 +1112,6 @@ void PipelineHandlerISI::bufferReady(FrameBuffer *buffer)
>         completeRequest(request);
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerISI)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerISI, "imx8-isi")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
> index fa4bd0bb..d1708d42 100644
> --- a/src/libcamera/pipeline/ipu3/ipu3.cpp
> +++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
> @@ -1420,6 +1420,6 @@ void IPU3CameraData::frameStart(uint32_t sequence)
>                                 *testPatternMode);
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3, "ipu3")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
> index 78343553..44e84bcf 100644
> --- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
> +++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
> @@ -1061,6 +1061,6 @@ bool PipelineHandlerMaliC55::match(DeviceEnumerator *enumerator)
>         return true;
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55, "mali-c55")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> index abb21968..d8f99135 100644
> --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> @@ -1322,6 +1322,6 @@ void PipelineHandlerRkISP1::statReady(FrameBuffer *buffer)
>                                        data->delayedCtrls_->get(buffer->metadata().sequence));
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1, "rkisp1")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/rpi/vc4/vc4.cpp b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
> index 947b1e73..013c6519 100644
> --- a/src/libcamera/pipeline/rpi/vc4/vc4.cpp
> +++ b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
> @@ -1018,6 +1018,6 @@ bool Vc4CameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&em
>         return true;
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4, "rpi/vc4")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
> index 61a59926..e62e9172 100644
> --- a/src/libcamera/pipeline/simple/simple.cpp
> +++ b/src/libcamera/pipeline/simple/simple.cpp
> @@ -1732,6 +1732,6 @@ void SimplePipelineHandler::releasePipeline(SimpleCameraData *data)
>         }
>  }
>  
> -REGISTER_PIPELINE_HANDLER(SimplePipelineHandler)
> +REGISTER_PIPELINE_HANDLER(SimplePipelineHandler, "simple")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> index ed9c7f88..33464517 100644
> --- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> +++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> @@ -709,6 +709,6 @@ void UVCCameraData::bufferReady(FrameBuffer *buffer)
>         pipe()->completeRequest(request);
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC, "uvcvideo")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
> index 5e66ee1d..f681102d 100644
> --- a/src/libcamera/pipeline/vimc/vimc.cpp
> +++ b/src/libcamera/pipeline/vimc/vimc.cpp
> @@ -623,6 +623,6 @@ void VimcCameraData::paramsBufferReady([[maybe_unused]] unsigned int id,
>  {
>  }
>  
> -REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc)
> +REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc, "vimc")
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
> index 29e0c98a..0c913e50 100644
> --- a/src/libcamera/pipeline_handler.cpp
> +++ b/src/libcamera/pipeline_handler.cpp
> @@ -830,6 +830,8 @@ std::vector<PipelineHandlerFactoryBase *> &PipelineHandlerFactoryBase::factories
>   * \def REGISTER_PIPELINE_HANDLER
>   * \brief Register a pipeline handler with the pipeline handler factory
>   * \param[in] handler Class name of PipelineHandler derived class to register
> + * \param[in] name Name assigned to the pipeline handler, matching the pipeline
> + * subdirectory name in the source tree.
>   *
>   * Register a PipelineHandler subclass with the factory and make it available to
>   * try and match devices.
> diff --git a/test/ipa/ipa_interface_test.cpp b/test/ipa/ipa_interface_test.cpp
> index 56f3cd6d..b489b5f6 100644
> --- a/test/ipa/ipa_interface_test.cpp
> +++ b/test/ipa/ipa_interface_test.cpp
> @@ -56,7 +56,7 @@ protected:
>                 const std::vector<PipelineHandlerFactoryBase *> &factories =
>                         PipelineHandlerFactoryBase::factories();
>                 for (const PipelineHandlerFactoryBase *factory : factories) {
> -                       if (factory->name() == "PipelineHandlerVimc") {
> +                       if (factory->name() == "vimc") {
>                                 pipe_ = factory->create(nullptr);
>                                 break;
>                         }
> diff --git a/test/ipa/ipa_module_test.cpp b/test/ipa/ipa_module_test.cpp
> index bd5e0e4c..ae6f7a52 100644
> --- a/test/ipa/ipa_module_test.cpp
> +++ b/test/ipa/ipa_module_test.cpp
> @@ -57,7 +57,7 @@ protected:
>                 const struct IPAModuleInfo testInfo = {
>                         IPA_MODULE_API_VERSION,
>                         0,
> -                       "PipelineHandlerVimc",
> +                       "vimc",
>                         "vimc",
>                 };
>  
> -- 
> 2.34.1
>
Kieran Bingham May 9, 2024, 2:35 p.m. UTC | #2
Quoting Kieran Bingham (2024-05-09 09:33:36)
> Quoting Julien Vuillaumier (2024-05-03 15:49:17)
> > The PipelineHandlerFactoryBase class has a name that is
> > propagated to the PipelineHandler instance it creates.
> > 
> > In present implementation, this name comes from the
> > REGISTER_PIPELINE_HANDLER registration macro. It corresponds to
> > the stringified name of the PipelineHandler derived class.
> > Therefore, PipelineHandler factories and instances names can be
> > quite long such as "PipelineHandlerRkISP1".
> > 
> > A libcamera user may have to explicitly refer to a PipelineHandler
> > name for configuration purpose: one usage of the name can be to
> > define a pipeline handlers match list and their priorities.
> > It is desired, for user convenience, to use a short name to
> > designate a pipeline handler. Reusing the short pipeline names
> > already defined in the meson option files is an existing and
> > consistent way of naming pipelines.
> > 
> > This change adds an explicit name parameter to the
> > REGISTER_PIPELINE_HANDLER registration macro. That parameter is
> > used to define the name of a pipeline handler factory, instead of
> > the current pipeline handler class name.
> > 
> > Each pipeline registration is updated accordingly. The short name
> > assigned corresponds to the pipeline directory name in the
> > source tree. It is consistent with pipelines names used in meson.
> 
> All of the above sounds great.
> 
> > Changing the pipeline name has an impact on the IPA modules:
> > each module defines a IPAModuleInfo structure. This structure has
> > a pipelineName member defining the pipeline handler name it shall
> > match with.
> > Therefore, each internal IPA module definition has to be changed
> > to have its IPAModuleInfo pipelineName name updated with the short
> > pipeline handler name.
> > 
> > In addition to this pipelineName member, the IPAModuleInfo structure
> > also has a name member, associated to the IPA module name.
> > Having renamed the pipelines to a short name, the pipeline name and
> > the IPA module names of the IPAModuleInfo structure are the same:
> > for in-tree IPA, they correspond to the respective pipeline and IPA
> > subdirectories in the source tree.
> > However the IPA name could be different, for instance with a close
> > source IPA implementation built out-of-tree. Thus, it makes sense to
> > keep the IPA name in that structure, as the 2 definitions may not
> > always be redundant.
> 
> This was the first thing I noticed in the code ... why do we duplicate.
> 
> But it does sound like it makes sense, particularly if we want to
> register or 'select' distinct IPAs which could be forseen in the future.
> Even to be able to select which IPA to prefer as you have done for the
> Pipeline handlers, so I do think this is worthwhile. There are other
> ways we could handle this, with substring matching, or 'compatible'
> strings ... but it could always be updated on top IMO if we decide to.
> 
> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> 
> 
> > Signed-off-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
> > ---
> >  Documentation/guides/pipeline-handler.rst     | 4 +++-
> >  include/libcamera/internal/pipeline_handler.h | 4 ++--
> >  src/ipa/ipu3/ipu3.cpp                         | 2 +-
> >  src/ipa/rkisp1/rkisp1.cpp                     | 2 +-
> >  src/ipa/rpi/vc4/vc4.cpp                       | 2 +-
> >  src/ipa/simple/soft_simple.cpp                | 2 +-
> >  src/ipa/vimc/vimc.cpp                         | 2 +-
> >  src/libcamera/pipeline/imx8-isi/imx8-isi.cpp  | 2 +-
> >  src/libcamera/pipeline/ipu3/ipu3.cpp          | 2 +-
> >  src/libcamera/pipeline/mali-c55/mali-c55.cpp  | 2 +-
> >  src/libcamera/pipeline/rkisp1/rkisp1.cpp      | 2 +-
> >  src/libcamera/pipeline/rpi/vc4/vc4.cpp        | 2 +-
> >  src/libcamera/pipeline/simple/simple.cpp      | 2 +-
> >  src/libcamera/pipeline/uvcvideo/uvcvideo.cpp  | 2 +-
> >  src/libcamera/pipeline/vimc/vimc.cpp          | 2 +-
> >  src/libcamera/pipeline_handler.cpp            | 2 ++
> >  test/ipa/ipa_interface_test.cpp               | 2 +-
> >  test/ipa/ipa_module_test.cpp                  | 2 +-
> >  18 files changed, 22 insertions(+), 18 deletions(-)
> > 
> > diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
> > index 728e9676..7e45cdb8 100644
> > --- a/Documentation/guides/pipeline-handler.rst
> > +++ b/Documentation/guides/pipeline-handler.rst
> > @@ -258,7 +258,7 @@ implementations for the overridden class members.
> >            return false;
> >     }
> >  
> > -   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid)
> > +   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid, "vivid")
> >  
> >     } /* namespace libcamera */
> >  
> > @@ -266,6 +266,8 @@ Note that you must register the ``PipelineHandler`` subclass with the pipeline
> >  handler factory using the `REGISTER_PIPELINE_HANDLER`_ macro which
> >  registers it and creates a global symbol to reference the class and make it
> >  available to try and match devices.
> > +String "vivid" is the name assigned to the pipeline, matching the pipeline
> > +subdirectory name in the source tree.
> 
> I would write 'The string "vivid" is the name .... ' but that's minor.
> Could be fixed when applying if desired if everyone else is happy with
> this patch.
> 
> 
> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> 
> 
> 
> 
> >  
> >  .. _REGISTER_PIPELINE_HANDLER: https://libcamera.org/api-html/pipeline__handler_8h.html
> >  
> > diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h
> > index c96944f4..cc70f69c 100644
> > --- a/include/libcamera/internal/pipeline_handler.h
> > +++ b/include/libcamera/internal/pipeline_handler.h
> > @@ -140,7 +140,7 @@ public:
> >         }
> >  };
> >  
> > -#define REGISTER_PIPELINE_HANDLER(handler) \
> > -static PipelineHandlerFactory<handler> global_##handler##Factory(#handler);
> > +#define REGISTER_PIPELINE_HANDLER(handler, name) \
> > +static PipelineHandlerFactory<handler> global_##handler##Factory(name);
> >  

The only checkstyle failure on this series is here, as clang wants to
indent the static definition line.

I think it's fine keeping it aligned left as it was, but I'm also
tempted to indent it just to silence the checker.

Any preferences from anyone?


https://gitlab.freedesktop.org/camera/libcamera/-/jobs/58532646:

------------------------------------------------------------------------------------------------
2598ba4a94839d63ed1904a0080d6b8285220a5c libcamera: pipeline: Rename pipelines to a shorter name
------------------------------------------------------------------------------------------------
--- include/libcamera/internal/pipeline_handler.h
+++ include/libcamera/internal/pipeline_handler.h
@@ -141,6 +142,6 @@
 };

 #define REGISTER_PIPELINE_HANDLER(handler, name) \
-static PipelineHandlerFactory<handler> global_##handler##Factory(name);
+	static PipelineHandlerFactory<handler> global_##handler##Factory(name);

 } /* namespace libcamera */



--
Kieran



> >  } /* namespace libcamera */

> > diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
> > index 08ee6eb3..994c0eda 100644
> > --- a/src/ipa/ipu3/ipu3.cpp
> > +++ b/src/ipa/ipu3/ipu3.cpp
> > @@ -672,7 +672,7 @@ extern "C" {
> >  const struct IPAModuleInfo ipaModuleInfo = {
> >         IPA_MODULE_API_VERSION,
> >         1,
> > -       "PipelineHandlerIPU3",
> > +       "ipu3",
> >         "ipu3",
> >  };
> >  
> > diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
> > index 9dc5f53c..5319c98f 100644
> > --- a/src/ipa/rkisp1/rkisp1.cpp
> > +++ b/src/ipa/rkisp1/rkisp1.cpp
> > @@ -458,7 +458,7 @@ extern "C" {
> >  const struct IPAModuleInfo ipaModuleInfo = {
> >         IPA_MODULE_API_VERSION,
> >         1,
> > -       "PipelineHandlerRkISP1",
> > +       "rkisp1",
> >         "rkisp1",
> >  };
> >  
> > diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp
> > index d2159a51..11316e05 100644
> > --- a/src/ipa/rpi/vc4/vc4.cpp
> > +++ b/src/ipa/rpi/vc4/vc4.cpp
> > @@ -583,7 +583,7 @@ extern "C" {
> >  const struct IPAModuleInfo ipaModuleInfo = {
> >         IPA_MODULE_API_VERSION,
> >         1,
> > -       "PipelineHandlerVc4",
> > +       "rpi/vc4",
> >         "rpi/vc4",
> >  };
> >  
> > diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
> > index b9fb58b5..39c49448 100644
> > --- a/src/ipa/simple/soft_simple.cpp
> > +++ b/src/ipa/simple/soft_simple.cpp
> > @@ -389,7 +389,7 @@ extern "C" {
> >  const struct IPAModuleInfo ipaModuleInfo = {
> >         IPA_MODULE_API_VERSION,
> >         0,
> > -       "SimplePipelineHandler",
> > +       "simple",
> >         "simple",
> >  };
> >  
> > diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp
> > index 2c255778..1bda772f 100644
> > --- a/src/ipa/vimc/vimc.cpp
> > +++ b/src/ipa/vimc/vimc.cpp
> > @@ -200,7 +200,7 @@ extern "C" {
> >  const struct IPAModuleInfo ipaModuleInfo = {
> >         IPA_MODULE_API_VERSION,
> >         0,
> > -       "PipelineHandlerVimc",
> > +       "vimc",
> >         "vimc",
> >  };
> >  
> > diff --git a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> > index 63082cea..f4d755c2 100644
> > --- a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> > +++ b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> > @@ -1112,6 +1112,6 @@ void PipelineHandlerISI::bufferReady(FrameBuffer *buffer)
> >         completeRequest(request);
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerISI)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerISI, "imx8-isi")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
> > index fa4bd0bb..d1708d42 100644
> > --- a/src/libcamera/pipeline/ipu3/ipu3.cpp
> > +++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
> > @@ -1420,6 +1420,6 @@ void IPU3CameraData::frameStart(uint32_t sequence)
> >                                 *testPatternMode);
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3, "ipu3")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
> > index 78343553..44e84bcf 100644
> > --- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
> > +++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
> > @@ -1061,6 +1061,6 @@ bool PipelineHandlerMaliC55::match(DeviceEnumerator *enumerator)
> >         return true;
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55, "mali-c55")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> > index abb21968..d8f99135 100644
> > --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> > +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> > @@ -1322,6 +1322,6 @@ void PipelineHandlerRkISP1::statReady(FrameBuffer *buffer)
> >                                        data->delayedCtrls_->get(buffer->metadata().sequence));
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1, "rkisp1")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/rpi/vc4/vc4.cpp b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
> > index 947b1e73..013c6519 100644
> > --- a/src/libcamera/pipeline/rpi/vc4/vc4.cpp
> > +++ b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
> > @@ -1018,6 +1018,6 @@ bool Vc4CameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&em
> >         return true;
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4, "rpi/vc4")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
> > index 61a59926..e62e9172 100644
> > --- a/src/libcamera/pipeline/simple/simple.cpp
> > +++ b/src/libcamera/pipeline/simple/simple.cpp
> > @@ -1732,6 +1732,6 @@ void SimplePipelineHandler::releasePipeline(SimpleCameraData *data)
> >         }
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(SimplePipelineHandler)
> > +REGISTER_PIPELINE_HANDLER(SimplePipelineHandler, "simple")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> > index ed9c7f88..33464517 100644
> > --- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> > +++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> > @@ -709,6 +709,6 @@ void UVCCameraData::bufferReady(FrameBuffer *buffer)
> >         pipe()->completeRequest(request);
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC, "uvcvideo")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
> > index 5e66ee1d..f681102d 100644
> > --- a/src/libcamera/pipeline/vimc/vimc.cpp
> > +++ b/src/libcamera/pipeline/vimc/vimc.cpp
> > @@ -623,6 +623,6 @@ void VimcCameraData::paramsBufferReady([[maybe_unused]] unsigned int id,
> >  {
> >  }
> >  
> > -REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc)
> > +REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc, "vimc")
> >  
> >  } /* namespace libcamera */
> > diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
> > index 29e0c98a..0c913e50 100644
> > --- a/src/libcamera/pipeline_handler.cpp
> > +++ b/src/libcamera/pipeline_handler.cpp
> > @@ -830,6 +830,8 @@ std::vector<PipelineHandlerFactoryBase *> &PipelineHandlerFactoryBase::factories
> >   * \def REGISTER_PIPELINE_HANDLER
> >   * \brief Register a pipeline handler with the pipeline handler factory
> >   * \param[in] handler Class name of PipelineHandler derived class to register
> > + * \param[in] name Name assigned to the pipeline handler, matching the pipeline
> > + * subdirectory name in the source tree.
> >   *
> >   * Register a PipelineHandler subclass with the factory and make it available to
> >   * try and match devices.
> > diff --git a/test/ipa/ipa_interface_test.cpp b/test/ipa/ipa_interface_test.cpp
> > index 56f3cd6d..b489b5f6 100644
> > --- a/test/ipa/ipa_interface_test.cpp
> > +++ b/test/ipa/ipa_interface_test.cpp
> > @@ -56,7 +56,7 @@ protected:
> >                 const std::vector<PipelineHandlerFactoryBase *> &factories =
> >                         PipelineHandlerFactoryBase::factories();
> >                 for (const PipelineHandlerFactoryBase *factory : factories) {
> > -                       if (factory->name() == "PipelineHandlerVimc") {
> > +                       if (factory->name() == "vimc") {
> >                                 pipe_ = factory->create(nullptr);
> >                                 break;
> >                         }
> > diff --git a/test/ipa/ipa_module_test.cpp b/test/ipa/ipa_module_test.cpp
> > index bd5e0e4c..ae6f7a52 100644
> > --- a/test/ipa/ipa_module_test.cpp
> > +++ b/test/ipa/ipa_module_test.cpp
> > @@ -57,7 +57,7 @@ protected:
> >                 const struct IPAModuleInfo testInfo = {
> >                         IPA_MODULE_API_VERSION,
> >                         0,
> > -                       "PipelineHandlerVimc",
> > +                       "vimc",
> >                         "vimc",
> >                 };
> >  
> > -- 
> > 2.34.1
> >
Julien Vuillaumier May 13, 2024, 8:29 a.m. UTC | #3
Hi Kieran,

On 09/05/2024 10:33, Kieran Bingham wrote:
> Quoting Julien Vuillaumier (2024-05-03 15:49:17)
>> The PipelineHandlerFactoryBase class has a name that is
>> propagated to the PipelineHandler instance it creates.
>>
>> In present implementation, this name comes from the
>> REGISTER_PIPELINE_HANDLER registration macro. It corresponds to
>> the stringified name of the PipelineHandler derived class.
>> Therefore, PipelineHandler factories and instances names can be
>> quite long such as "PipelineHandlerRkISP1".
>>
>> A libcamera user may have to explicitly refer to a PipelineHandler
>> name for configuration purpose: one usage of the name can be to
>> define a pipeline handlers match list and their priorities.
>> It is desired, for user convenience, to use a short name to
>> designate a pipeline handler. Reusing the short pipeline names
>> already defined in the meson option files is an existing and
>> consistent way of naming pipelines.
>>
>> This change adds an explicit name parameter to the
>> REGISTER_PIPELINE_HANDLER registration macro. That parameter is
>> used to define the name of a pipeline handler factory, instead of
>> the current pipeline handler class name.
>>
>> Each pipeline registration is updated accordingly. The short name
>> assigned corresponds to the pipeline directory name in the
>> source tree. It is consistent with pipelines names used in meson.
> 
> All of the above sounds great.
> 
>> Changing the pipeline name has an impact on the IPA modules:
>> each module defines a IPAModuleInfo structure. This structure has
>> a pipelineName member defining the pipeline handler name it shall
>> match with.
>> Therefore, each internal IPA module definition has to be changed
>> to have its IPAModuleInfo pipelineName name updated with the short
>> pipeline handler name.
>>
>> In addition to this pipelineName member, the IPAModuleInfo structure
>> also has a name member, associated to the IPA module name.
>> Having renamed the pipelines to a short name, the pipeline name and
>> the IPA module names of the IPAModuleInfo structure are the same:
>> for in-tree IPA, they correspond to the respective pipeline and IPA
>> subdirectories in the source tree.
>> However the IPA name could be different, for instance with a close
>> source IPA implementation built out-of-tree. Thus, it makes sense to
>> keep the IPA name in that structure, as the 2 definitions may not
>> always be redundant.
> 
> This was the first thing I noticed in the code ... why do we duplicate.
> 
> But it does sound like it makes sense, particularly if we want to
> register or 'select' distinct IPAs which could be forseen in the future.
> Even to be able to select which IPA to prefer as you have done for the
> Pipeline handlers, so I do think this is worthwhile. There are other
> ways we could handle this, with substring matching, or 'compatible'
> strings ... but it could always be updated on top IMO if we decide to.

Agreed, having a way to select a specific IPA module could be a 
convenient addition for the future. As of now, there is presumably a way 
to do so by setting the LIBCAMERA_IPA_MODULE_PATH variable. But it 
requires the IPA modules to be installed in different paths, which is 
not always desired.

> 
> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> 
> 
>> Signed-off-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
>> ---
>>   Documentation/guides/pipeline-handler.rst     | 4 +++-
>>   include/libcamera/internal/pipeline_handler.h | 4 ++--
>>   src/ipa/ipu3/ipu3.cpp                         | 2 +-
>>   src/ipa/rkisp1/rkisp1.cpp                     | 2 +-
>>   src/ipa/rpi/vc4/vc4.cpp                       | 2 +-
>>   src/ipa/simple/soft_simple.cpp                | 2 +-
>>   src/ipa/vimc/vimc.cpp                         | 2 +-
>>   src/libcamera/pipeline/imx8-isi/imx8-isi.cpp  | 2 +-
>>   src/libcamera/pipeline/ipu3/ipu3.cpp          | 2 +-
>>   src/libcamera/pipeline/mali-c55/mali-c55.cpp  | 2 +-
>>   src/libcamera/pipeline/rkisp1/rkisp1.cpp      | 2 +-
>>   src/libcamera/pipeline/rpi/vc4/vc4.cpp        | 2 +-
>>   src/libcamera/pipeline/simple/simple.cpp      | 2 +-
>>   src/libcamera/pipeline/uvcvideo/uvcvideo.cpp  | 2 +-
>>   src/libcamera/pipeline/vimc/vimc.cpp          | 2 +-
>>   src/libcamera/pipeline_handler.cpp            | 2 ++
>>   test/ipa/ipa_interface_test.cpp               | 2 +-
>>   test/ipa/ipa_module_test.cpp                  | 2 +-
>>   18 files changed, 22 insertions(+), 18 deletions(-)
>>
>> diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
>> index 728e9676..7e45cdb8 100644
>> --- a/Documentation/guides/pipeline-handler.rst
>> +++ b/Documentation/guides/pipeline-handler.rst
>> @@ -258,7 +258,7 @@ implementations for the overridden class members.
>>             return false;
>>      }
>>
>> -   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid)
>> +   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid, "vivid")
>>
>>      } /* namespace libcamera */
>>
>> @@ -266,6 +266,8 @@ Note that you must register the ``PipelineHandler`` subclass with the pipeline
>>   handler factory using the `REGISTER_PIPELINE_HANDLER`_ macro which
>>   registers it and creates a global symbol to reference the class and make it
>>   available to try and match devices.
>> +String "vivid" is the name assigned to the pipeline, matching the pipeline
>> +subdirectory name in the source tree.
> 
> I would write 'The string "vivid" is the name .... ' but that's minor.
> Could be fixed when applying if desired if everyone else is happy with
> this patch.
> 

Point noted - I will add that fix if there is a new version of the patch 
set then.

Thanks,
Julien

> 
> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> 
> 
> 
> 
>>
>>   .. _REGISTER_PIPELINE_HANDLER: https://libcamera.org/api-html/pipeline__handler_8h.html
>>
>> diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h
>> index c96944f4..cc70f69c 100644
>> --- a/include/libcamera/internal/pipeline_handler.h
>> +++ b/include/libcamera/internal/pipeline_handler.h
>> @@ -140,7 +140,7 @@ public:
>>          }
>>   };
>>
>> -#define REGISTER_PIPELINE_HANDLER(handler) \
>> -static PipelineHandlerFactory<handler> global_##handler##Factory(#handler);
>> +#define REGISTER_PIPELINE_HANDLER(handler, name) \
>> +static PipelineHandlerFactory<handler> global_##handler##Factory(name);
>>
>>   } /* namespace libcamera */
>> diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
>> index 08ee6eb3..994c0eda 100644
>> --- a/src/ipa/ipu3/ipu3.cpp
>> +++ b/src/ipa/ipu3/ipu3.cpp
>> @@ -672,7 +672,7 @@ extern "C" {
>>   const struct IPAModuleInfo ipaModuleInfo = {
>>          IPA_MODULE_API_VERSION,
>>          1,
>> -       "PipelineHandlerIPU3",
>> +       "ipu3",
>>          "ipu3",
>>   };
>>
>> diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
>> index 9dc5f53c..5319c98f 100644
>> --- a/src/ipa/rkisp1/rkisp1.cpp
>> +++ b/src/ipa/rkisp1/rkisp1.cpp
>> @@ -458,7 +458,7 @@ extern "C" {
>>   const struct IPAModuleInfo ipaModuleInfo = {
>>          IPA_MODULE_API_VERSION,
>>          1,
>> -       "PipelineHandlerRkISP1",
>> +       "rkisp1",
>>          "rkisp1",
>>   };
>>
>> diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp
>> index d2159a51..11316e05 100644
>> --- a/src/ipa/rpi/vc4/vc4.cpp
>> +++ b/src/ipa/rpi/vc4/vc4.cpp
>> @@ -583,7 +583,7 @@ extern "C" {
>>   const struct IPAModuleInfo ipaModuleInfo = {
>>          IPA_MODULE_API_VERSION,
>>          1,
>> -       "PipelineHandlerVc4",
>> +       "rpi/vc4",
>>          "rpi/vc4",
>>   };
>>
>> diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
>> index b9fb58b5..39c49448 100644
>> --- a/src/ipa/simple/soft_simple.cpp
>> +++ b/src/ipa/simple/soft_simple.cpp
>> @@ -389,7 +389,7 @@ extern "C" {
>>   const struct IPAModuleInfo ipaModuleInfo = {
>>          IPA_MODULE_API_VERSION,
>>          0,
>> -       "SimplePipelineHandler",
>> +       "simple",
>>          "simple",
>>   };
>>
>> diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp
>> index 2c255778..1bda772f 100644
>> --- a/src/ipa/vimc/vimc.cpp
>> +++ b/src/ipa/vimc/vimc.cpp
>> @@ -200,7 +200,7 @@ extern "C" {
>>   const struct IPAModuleInfo ipaModuleInfo = {
>>          IPA_MODULE_API_VERSION,
>>          0,
>> -       "PipelineHandlerVimc",
>> +       "vimc",
>>          "vimc",
>>   };
>>
>> diff --git a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
>> index 63082cea..f4d755c2 100644
>> --- a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
>> +++ b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
>> @@ -1112,6 +1112,6 @@ void PipelineHandlerISI::bufferReady(FrameBuffer *buffer)
>>          completeRequest(request);
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerISI)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerISI, "imx8-isi")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
>> index fa4bd0bb..d1708d42 100644
>> --- a/src/libcamera/pipeline/ipu3/ipu3.cpp
>> +++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
>> @@ -1420,6 +1420,6 @@ void IPU3CameraData::frameStart(uint32_t sequence)
>>                                  *testPatternMode);
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3, "ipu3")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
>> index 78343553..44e84bcf 100644
>> --- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
>> +++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
>> @@ -1061,6 +1061,6 @@ bool PipelineHandlerMaliC55::match(DeviceEnumerator *enumerator)
>>          return true;
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55, "mali-c55")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
>> index abb21968..d8f99135 100644
>> --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
>> +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
>> @@ -1322,6 +1322,6 @@ void PipelineHandlerRkISP1::statReady(FrameBuffer *buffer)
>>                                         data->delayedCtrls_->get(buffer->metadata().sequence));
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1, "rkisp1")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/rpi/vc4/vc4.cpp b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
>> index 947b1e73..013c6519 100644
>> --- a/src/libcamera/pipeline/rpi/vc4/vc4.cpp
>> +++ b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
>> @@ -1018,6 +1018,6 @@ bool Vc4CameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&em
>>          return true;
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4, "rpi/vc4")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
>> index 61a59926..e62e9172 100644
>> --- a/src/libcamera/pipeline/simple/simple.cpp
>> +++ b/src/libcamera/pipeline/simple/simple.cpp
>> @@ -1732,6 +1732,6 @@ void SimplePipelineHandler::releasePipeline(SimpleCameraData *data)
>>          }
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(SimplePipelineHandler)
>> +REGISTER_PIPELINE_HANDLER(SimplePipelineHandler, "simple")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
>> index ed9c7f88..33464517 100644
>> --- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
>> +++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
>> @@ -709,6 +709,6 @@ void UVCCameraData::bufferReady(FrameBuffer *buffer)
>>          pipe()->completeRequest(request);
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC, "uvcvideo")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
>> index 5e66ee1d..f681102d 100644
>> --- a/src/libcamera/pipeline/vimc/vimc.cpp
>> +++ b/src/libcamera/pipeline/vimc/vimc.cpp
>> @@ -623,6 +623,6 @@ void VimcCameraData::paramsBufferReady([[maybe_unused]] unsigned int id,
>>   {
>>   }
>>
>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc)
>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc, "vimc")
>>
>>   } /* namespace libcamera */
>> diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
>> index 29e0c98a..0c913e50 100644
>> --- a/src/libcamera/pipeline_handler.cpp
>> +++ b/src/libcamera/pipeline_handler.cpp
>> @@ -830,6 +830,8 @@ std::vector<PipelineHandlerFactoryBase *> &PipelineHandlerFactoryBase::factories
>>    * \def REGISTER_PIPELINE_HANDLER
>>    * \brief Register a pipeline handler with the pipeline handler factory
>>    * \param[in] handler Class name of PipelineHandler derived class to register
>> + * \param[in] name Name assigned to the pipeline handler, matching the pipeline
>> + * subdirectory name in the source tree.
>>    *
>>    * Register a PipelineHandler subclass with the factory and make it available to
>>    * try and match devices.
>> diff --git a/test/ipa/ipa_interface_test.cpp b/test/ipa/ipa_interface_test.cpp
>> index 56f3cd6d..b489b5f6 100644
>> --- a/test/ipa/ipa_interface_test.cpp
>> +++ b/test/ipa/ipa_interface_test.cpp
>> @@ -56,7 +56,7 @@ protected:
>>                  const std::vector<PipelineHandlerFactoryBase *> &factories =
>>                          PipelineHandlerFactoryBase::factories();
>>                  for (const PipelineHandlerFactoryBase *factory : factories) {
>> -                       if (factory->name() == "PipelineHandlerVimc") {
>> +                       if (factory->name() == "vimc") {
>>                                  pipe_ = factory->create(nullptr);
>>                                  break;
>>                          }
>> diff --git a/test/ipa/ipa_module_test.cpp b/test/ipa/ipa_module_test.cpp
>> index bd5e0e4c..ae6f7a52 100644
>> --- a/test/ipa/ipa_module_test.cpp
>> +++ b/test/ipa/ipa_module_test.cpp
>> @@ -57,7 +57,7 @@ protected:
>>                  const struct IPAModuleInfo testInfo = {
>>                          IPA_MODULE_API_VERSION,
>>                          0,
>> -                       "PipelineHandlerVimc",
>> +                       "vimc",
>>                          "vimc",
>>                  };
>>
>> --
>> 2.34.1
>>
Julien Vuillaumier May 13, 2024, 8:55 a.m. UTC | #4
Hi Kieran,

On 09/05/2024 16:35, Kieran Bingham wrote:

> Quoting Kieran Bingham (2024-05-09 09:33:36)
>> Quoting Julien Vuillaumier (2024-05-03 15:49:17)
>>> The PipelineHandlerFactoryBase class has a name that is
>>> propagated to the PipelineHandler instance it creates.
>>>
>>> In present implementation, this name comes from the
>>> REGISTER_PIPELINE_HANDLER registration macro. It corresponds to
>>> the stringified name of the PipelineHandler derived class.
>>> Therefore, PipelineHandler factories and instances names can be
>>> quite long such as "PipelineHandlerRkISP1".
>>>
>>> A libcamera user may have to explicitly refer to a PipelineHandler
>>> name for configuration purpose: one usage of the name can be to
>>> define a pipeline handlers match list and their priorities.
>>> It is desired, for user convenience, to use a short name to
>>> designate a pipeline handler. Reusing the short pipeline names
>>> already defined in the meson option files is an existing and
>>> consistent way of naming pipelines.
>>>
>>> This change adds an explicit name parameter to the
>>> REGISTER_PIPELINE_HANDLER registration macro. That parameter is
>>> used to define the name of a pipeline handler factory, instead of
>>> the current pipeline handler class name.
>>>
>>> Each pipeline registration is updated accordingly. The short name
>>> assigned corresponds to the pipeline directory name in the
>>> source tree. It is consistent with pipelines names used in meson.
>>
>> All of the above sounds great.
>>
>>> Changing the pipeline name has an impact on the IPA modules:
>>> each module defines a IPAModuleInfo structure. This structure has
>>> a pipelineName member defining the pipeline handler name it shall
>>> match with.
>>> Therefore, each internal IPA module definition has to be changed
>>> to have its IPAModuleInfo pipelineName name updated with the short
>>> pipeline handler name.
>>>
>>> In addition to this pipelineName member, the IPAModuleInfo structure
>>> also has a name member, associated to the IPA module name.
>>> Having renamed the pipelines to a short name, the pipeline name and
>>> the IPA module names of the IPAModuleInfo structure are the same:
>>> for in-tree IPA, they correspond to the respective pipeline and IPA
>>> subdirectories in the source tree.
>>> However the IPA name could be different, for instance with a close
>>> source IPA implementation built out-of-tree. Thus, it makes sense to
>>> keep the IPA name in that structure, as the 2 definitions may not
>>> always be redundant.
>>
>> This was the first thing I noticed in the code ... why do we duplicate.
>>
>> But it does sound like it makes sense, particularly if we want to
>> register or 'select' distinct IPAs which could be forseen in the future.
>> Even to be able to select which IPA to prefer as you have done for the
>> Pipeline handlers, so I do think this is worthwhile. There are other
>> ways we could handle this, with substring matching, or 'compatible'
>> strings ... but it could always be updated on top IMO if we decide to.
>>
>> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
>>
>>
>>> Signed-off-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
>>> ---
>>>   Documentation/guides/pipeline-handler.rst     | 4 +++-
>>>   include/libcamera/internal/pipeline_handler.h | 4 ++--
>>>   src/ipa/ipu3/ipu3.cpp                         | 2 +-
>>>   src/ipa/rkisp1/rkisp1.cpp                     | 2 +-
>>>   src/ipa/rpi/vc4/vc4.cpp                       | 2 +-
>>>   src/ipa/simple/soft_simple.cpp                | 2 +-
>>>   src/ipa/vimc/vimc.cpp                         | 2 +-
>>>   src/libcamera/pipeline/imx8-isi/imx8-isi.cpp  | 2 +-
>>>   src/libcamera/pipeline/ipu3/ipu3.cpp          | 2 +-
>>>   src/libcamera/pipeline/mali-c55/mali-c55.cpp  | 2 +-
>>>   src/libcamera/pipeline/rkisp1/rkisp1.cpp      | 2 +-
>>>   src/libcamera/pipeline/rpi/vc4/vc4.cpp        | 2 +-
>>>   src/libcamera/pipeline/simple/simple.cpp      | 2 +-
>>>   src/libcamera/pipeline/uvcvideo/uvcvideo.cpp  | 2 +-
>>>   src/libcamera/pipeline/vimc/vimc.cpp          | 2 +-
>>>   src/libcamera/pipeline_handler.cpp            | 2 ++
>>>   test/ipa/ipa_interface_test.cpp               | 2 +-
>>>   test/ipa/ipa_module_test.cpp                  | 2 +-
>>>   18 files changed, 22 insertions(+), 18 deletions(-)
>>>
>>> diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
>>> index 728e9676..7e45cdb8 100644
>>> --- a/Documentation/guides/pipeline-handler.rst
>>> +++ b/Documentation/guides/pipeline-handler.rst
>>> @@ -258,7 +258,7 @@ implementations for the overridden class members.
>>>             return false;
>>>      }
>>>
>>> -   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid)
>>> +   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid, "vivid")
>>>
>>>      } /* namespace libcamera */
>>>
>>> @@ -266,6 +266,8 @@ Note that you must register the ``PipelineHandler`` subclass with the pipeline
>>>   handler factory using the `REGISTER_PIPELINE_HANDLER`_ macro which
>>>   registers it and creates a global symbol to reference the class and make it
>>>   available to try and match devices.
>>> +String "vivid" is the name assigned to the pipeline, matching the pipeline
>>> +subdirectory name in the source tree.
>>
>> I would write 'The string "vivid" is the name .... ' but that's minor.
>> Could be fixed when applying if desired if everyone else is happy with
>> this patch.
>>
>>
>> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
>>
>>
>>
>>
>>>
>>>   .. _REGISTER_PIPELINE_HANDLER: https://libcamera.org/api-html/pipeline__handler_8h.html
>>>
>>> diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h
>>> index c96944f4..cc70f69c 100644
>>> --- a/include/libcamera/internal/pipeline_handler.h
>>> +++ b/include/libcamera/internal/pipeline_handler.h
>>> @@ -140,7 +140,7 @@ public:
>>>          }
>>>   };
>>>
>>> -#define REGISTER_PIPELINE_HANDLER(handler) \
>>> -static PipelineHandlerFactory<handler> global_##handler##Factory(#handler);
>>> +#define REGISTER_PIPELINE_HANDLER(handler, name) \
>>> +static PipelineHandlerFactory<handler> global_##handler##Factory(name);
>>>
> 
> The only checkstyle failure on this series is here, as clang wants to
> indent the static definition line.
> 
> I think it's fine keeping it aligned left as it was, but I'm also
> tempted to indent it just to silence the checker.
> 
> Any preferences from anyone?


I noticed the checkstyle report but did not update as it is the current 
implementation and because other macros like 
REGISTER_CAMERA_SENSOR_HELPER() and REGISTER_IPA_ALGORITHM() don't use 
indentation neither for the static definition line.
For consistency with the other macro definitions, I would suggest 
keeping the left alignment but do not mind changing.

Thanks,
Julien

> 
> 
> https://gitlab.freedesktop.org/camera/libcamera/-/jobs/58532646:
> 
> ------------------------------------------------------------------------------------------------
> 2598ba4a94839d63ed1904a0080d6b8285220a5c libcamera: pipeline: Rename pipelines to a shorter name
> ------------------------------------------------------------------------------------------------
> --- include/libcamera/internal/pipeline_handler.h
> +++ include/libcamera/internal/pipeline_handler.h
> @@ -141,6 +142,6 @@
>   };
> 
>   #define REGISTER_PIPELINE_HANDLER(handler, name) \
> -static PipelineHandlerFactory<handler> global_##handler##Factory(name);
> +       static PipelineHandlerFactory<handler> global_##handler##Factory(name);
> 
>   } /* namespace libcamera */
> 
> 
> 
> --
> Kieran
> 
> 
> 
>>>   } /* namespace libcamera */
> 
>>> diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
>>> index 08ee6eb3..994c0eda 100644
>>> --- a/src/ipa/ipu3/ipu3.cpp
>>> +++ b/src/ipa/ipu3/ipu3.cpp
>>> @@ -672,7 +672,7 @@ extern "C" {
>>>   const struct IPAModuleInfo ipaModuleInfo = {
>>>          IPA_MODULE_API_VERSION,
>>>          1,
>>> -       "PipelineHandlerIPU3",
>>> +       "ipu3",
>>>          "ipu3",
>>>   };
>>>
>>> diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
>>> index 9dc5f53c..5319c98f 100644
>>> --- a/src/ipa/rkisp1/rkisp1.cpp
>>> +++ b/src/ipa/rkisp1/rkisp1.cpp
>>> @@ -458,7 +458,7 @@ extern "C" {
>>>   const struct IPAModuleInfo ipaModuleInfo = {
>>>          IPA_MODULE_API_VERSION,
>>>          1,
>>> -       "PipelineHandlerRkISP1",
>>> +       "rkisp1",
>>>          "rkisp1",
>>>   };
>>>
>>> diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp
>>> index d2159a51..11316e05 100644
>>> --- a/src/ipa/rpi/vc4/vc4.cpp
>>> +++ b/src/ipa/rpi/vc4/vc4.cpp
>>> @@ -583,7 +583,7 @@ extern "C" {
>>>   const struct IPAModuleInfo ipaModuleInfo = {
>>>          IPA_MODULE_API_VERSION,
>>>          1,
>>> -       "PipelineHandlerVc4",
>>> +       "rpi/vc4",
>>>          "rpi/vc4",
>>>   };
>>>
>>> diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
>>> index b9fb58b5..39c49448 100644
>>> --- a/src/ipa/simple/soft_simple.cpp
>>> +++ b/src/ipa/simple/soft_simple.cpp
>>> @@ -389,7 +389,7 @@ extern "C" {
>>>   const struct IPAModuleInfo ipaModuleInfo = {
>>>          IPA_MODULE_API_VERSION,
>>>          0,
>>> -       "SimplePipelineHandler",
>>> +       "simple",
>>>          "simple",
>>>   };
>>>
>>> diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp
>>> index 2c255778..1bda772f 100644
>>> --- a/src/ipa/vimc/vimc.cpp
>>> +++ b/src/ipa/vimc/vimc.cpp
>>> @@ -200,7 +200,7 @@ extern "C" {
>>>   const struct IPAModuleInfo ipaModuleInfo = {
>>>          IPA_MODULE_API_VERSION,
>>>          0,
>>> -       "PipelineHandlerVimc",
>>> +       "vimc",
>>>          "vimc",
>>>   };
>>>
>>> diff --git a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
>>> index 63082cea..f4d755c2 100644
>>> --- a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
>>> +++ b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
>>> @@ -1112,6 +1112,6 @@ void PipelineHandlerISI::bufferReady(FrameBuffer *buffer)
>>>          completeRequest(request);
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerISI)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerISI, "imx8-isi")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
>>> index fa4bd0bb..d1708d42 100644
>>> --- a/src/libcamera/pipeline/ipu3/ipu3.cpp
>>> +++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
>>> @@ -1420,6 +1420,6 @@ void IPU3CameraData::frameStart(uint32_t sequence)
>>>                                  *testPatternMode);
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3, "ipu3")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
>>> index 78343553..44e84bcf 100644
>>> --- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
>>> +++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
>>> @@ -1061,6 +1061,6 @@ bool PipelineHandlerMaliC55::match(DeviceEnumerator *enumerator)
>>>          return true;
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55, "mali-c55")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
>>> index abb21968..d8f99135 100644
>>> --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
>>> +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
>>> @@ -1322,6 +1322,6 @@ void PipelineHandlerRkISP1::statReady(FrameBuffer *buffer)
>>>                                         data->delayedCtrls_->get(buffer->metadata().sequence));
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1, "rkisp1")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/rpi/vc4/vc4.cpp b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
>>> index 947b1e73..013c6519 100644
>>> --- a/src/libcamera/pipeline/rpi/vc4/vc4.cpp
>>> +++ b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
>>> @@ -1018,6 +1018,6 @@ bool Vc4CameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&em
>>>          return true;
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4, "rpi/vc4")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
>>> index 61a59926..e62e9172 100644
>>> --- a/src/libcamera/pipeline/simple/simple.cpp
>>> +++ b/src/libcamera/pipeline/simple/simple.cpp
>>> @@ -1732,6 +1732,6 @@ void SimplePipelineHandler::releasePipeline(SimpleCameraData *data)
>>>          }
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(SimplePipelineHandler)
>>> +REGISTER_PIPELINE_HANDLER(SimplePipelineHandler, "simple")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
>>> index ed9c7f88..33464517 100644
>>> --- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
>>> +++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
>>> @@ -709,6 +709,6 @@ void UVCCameraData::bufferReady(FrameBuffer *buffer)
>>>          pipe()->completeRequest(request);
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC, "uvcvideo")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
>>> index 5e66ee1d..f681102d 100644
>>> --- a/src/libcamera/pipeline/vimc/vimc.cpp
>>> +++ b/src/libcamera/pipeline/vimc/vimc.cpp
>>> @@ -623,6 +623,6 @@ void VimcCameraData::paramsBufferReady([[maybe_unused]] unsigned int id,
>>>   {
>>>   }
>>>
>>> -REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc)
>>> +REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc, "vimc")
>>>
>>>   } /* namespace libcamera */
>>> diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
>>> index 29e0c98a..0c913e50 100644
>>> --- a/src/libcamera/pipeline_handler.cpp
>>> +++ b/src/libcamera/pipeline_handler.cpp
>>> @@ -830,6 +830,8 @@ std::vector<PipelineHandlerFactoryBase *> &PipelineHandlerFactoryBase::factories
>>>    * \def REGISTER_PIPELINE_HANDLER
>>>    * \brief Register a pipeline handler with the pipeline handler factory
>>>    * \param[in] handler Class name of PipelineHandler derived class to register
>>> + * \param[in] name Name assigned to the pipeline handler, matching the pipeline
>>> + * subdirectory name in the source tree.
>>>    *
>>>    * Register a PipelineHandler subclass with the factory and make it available to
>>>    * try and match devices.
>>> diff --git a/test/ipa/ipa_interface_test.cpp b/test/ipa/ipa_interface_test.cpp
>>> index 56f3cd6d..b489b5f6 100644
>>> --- a/test/ipa/ipa_interface_test.cpp
>>> +++ b/test/ipa/ipa_interface_test.cpp
>>> @@ -56,7 +56,7 @@ protected:
>>>                  const std::vector<PipelineHandlerFactoryBase *> &factories =
>>>                          PipelineHandlerFactoryBase::factories();
>>>                  for (const PipelineHandlerFactoryBase *factory : factories) {
>>> -                       if (factory->name() == "PipelineHandlerVimc") {
>>> +                       if (factory->name() == "vimc") {
>>>                                  pipe_ = factory->create(nullptr);
>>>                                  break;
>>>                          }
>>> diff --git a/test/ipa/ipa_module_test.cpp b/test/ipa/ipa_module_test.cpp
>>> index bd5e0e4c..ae6f7a52 100644
>>> --- a/test/ipa/ipa_module_test.cpp
>>> +++ b/test/ipa/ipa_module_test.cpp
>>> @@ -57,7 +57,7 @@ protected:
>>>                  const struct IPAModuleInfo testInfo = {
>>>                          IPA_MODULE_API_VERSION,
>>>                          0,
>>> -                       "PipelineHandlerVimc",
>>> +                       "vimc",
>>>                          "vimc",
>>>                  };
>>>
>>> --
>>> 2.34.1
>>>

Patch
diff mbox series

diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
index 728e9676..7e45cdb8 100644
--- a/Documentation/guides/pipeline-handler.rst
+++ b/Documentation/guides/pipeline-handler.rst
@@ -258,7 +258,7 @@  implementations for the overridden class members.
           return false;
    }
 
-   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid)
+   REGISTER_PIPELINE_HANDLER(PipelineHandlerVivid, "vivid")
 
    } /* namespace libcamera */
 
@@ -266,6 +266,8 @@  Note that you must register the ``PipelineHandler`` subclass with the pipeline
 handler factory using the `REGISTER_PIPELINE_HANDLER`_ macro which
 registers it and creates a global symbol to reference the class and make it
 available to try and match devices.
+String "vivid" is the name assigned to the pipeline, matching the pipeline
+subdirectory name in the source tree.
 
 .. _REGISTER_PIPELINE_HANDLER: https://libcamera.org/api-html/pipeline__handler_8h.html
 
diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h
index c96944f4..cc70f69c 100644
--- a/include/libcamera/internal/pipeline_handler.h
+++ b/include/libcamera/internal/pipeline_handler.h
@@ -140,7 +140,7 @@  public:
 	}
 };
 
-#define REGISTER_PIPELINE_HANDLER(handler) \
-static PipelineHandlerFactory<handler> global_##handler##Factory(#handler);
+#define REGISTER_PIPELINE_HANDLER(handler, name) \
+static PipelineHandlerFactory<handler> global_##handler##Factory(name);
 
 } /* namespace libcamera */
diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
index 08ee6eb3..994c0eda 100644
--- a/src/ipa/ipu3/ipu3.cpp
+++ b/src/ipa/ipu3/ipu3.cpp
@@ -672,7 +672,7 @@  extern "C" {
 const struct IPAModuleInfo ipaModuleInfo = {
 	IPA_MODULE_API_VERSION,
 	1,
-	"PipelineHandlerIPU3",
+	"ipu3",
 	"ipu3",
 };
 
diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
index 9dc5f53c..5319c98f 100644
--- a/src/ipa/rkisp1/rkisp1.cpp
+++ b/src/ipa/rkisp1/rkisp1.cpp
@@ -458,7 +458,7 @@  extern "C" {
 const struct IPAModuleInfo ipaModuleInfo = {
 	IPA_MODULE_API_VERSION,
 	1,
-	"PipelineHandlerRkISP1",
+	"rkisp1",
 	"rkisp1",
 };
 
diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp
index d2159a51..11316e05 100644
--- a/src/ipa/rpi/vc4/vc4.cpp
+++ b/src/ipa/rpi/vc4/vc4.cpp
@@ -583,7 +583,7 @@  extern "C" {
 const struct IPAModuleInfo ipaModuleInfo = {
 	IPA_MODULE_API_VERSION,
 	1,
-	"PipelineHandlerVc4",
+	"rpi/vc4",
 	"rpi/vc4",
 };
 
diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
index b9fb58b5..39c49448 100644
--- a/src/ipa/simple/soft_simple.cpp
+++ b/src/ipa/simple/soft_simple.cpp
@@ -389,7 +389,7 @@  extern "C" {
 const struct IPAModuleInfo ipaModuleInfo = {
 	IPA_MODULE_API_VERSION,
 	0,
-	"SimplePipelineHandler",
+	"simple",
 	"simple",
 };
 
diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp
index 2c255778..1bda772f 100644
--- a/src/ipa/vimc/vimc.cpp
+++ b/src/ipa/vimc/vimc.cpp
@@ -200,7 +200,7 @@  extern "C" {
 const struct IPAModuleInfo ipaModuleInfo = {
 	IPA_MODULE_API_VERSION,
 	0,
-	"PipelineHandlerVimc",
+	"vimc",
 	"vimc",
 };
 
diff --git a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
index 63082cea..f4d755c2 100644
--- a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
+++ b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
@@ -1112,6 +1112,6 @@  void PipelineHandlerISI::bufferReady(FrameBuffer *buffer)
 	completeRequest(request);
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerISI)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerISI, "imx8-isi")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index fa4bd0bb..d1708d42 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -1420,6 +1420,6 @@  void IPU3CameraData::frameStart(uint32_t sequence)
 				*testPatternMode);
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerIPU3, "ipu3")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
index 78343553..44e84bcf 100644
--- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
+++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
@@ -1061,6 +1061,6 @@  bool PipelineHandlerMaliC55::match(DeviceEnumerator *enumerator)
 	return true;
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerMaliC55, "mali-c55")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index abb21968..d8f99135 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -1322,6 +1322,6 @@  void PipelineHandlerRkISP1::statReady(FrameBuffer *buffer)
 				       data->delayedCtrls_->get(buffer->metadata().sequence));
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerRkISP1, "rkisp1")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/rpi/vc4/vc4.cpp b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
index 947b1e73..013c6519 100644
--- a/src/libcamera/pipeline/rpi/vc4/vc4.cpp
+++ b/src/libcamera/pipeline/rpi/vc4/vc4.cpp
@@ -1018,6 +1018,6 @@  bool Vc4CameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&em
 	return true;
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerVc4, "rpi/vc4")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
index 61a59926..e62e9172 100644
--- a/src/libcamera/pipeline/simple/simple.cpp
+++ b/src/libcamera/pipeline/simple/simple.cpp
@@ -1732,6 +1732,6 @@  void SimplePipelineHandler::releasePipeline(SimpleCameraData *data)
 	}
 }
 
-REGISTER_PIPELINE_HANDLER(SimplePipelineHandler)
+REGISTER_PIPELINE_HANDLER(SimplePipelineHandler, "simple")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
index ed9c7f88..33464517 100644
--- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
+++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
@@ -709,6 +709,6 @@  void UVCCameraData::bufferReady(FrameBuffer *buffer)
 	pipe()->completeRequest(request);
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC, "uvcvideo")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
index 5e66ee1d..f681102d 100644
--- a/src/libcamera/pipeline/vimc/vimc.cpp
+++ b/src/libcamera/pipeline/vimc/vimc.cpp
@@ -623,6 +623,6 @@  void VimcCameraData::paramsBufferReady([[maybe_unused]] unsigned int id,
 {
 }
 
-REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc)
+REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc, "vimc")
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
index 29e0c98a..0c913e50 100644
--- a/src/libcamera/pipeline_handler.cpp
+++ b/src/libcamera/pipeline_handler.cpp
@@ -830,6 +830,8 @@  std::vector<PipelineHandlerFactoryBase *> &PipelineHandlerFactoryBase::factories
  * \def REGISTER_PIPELINE_HANDLER
  * \brief Register a pipeline handler with the pipeline handler factory
  * \param[in] handler Class name of PipelineHandler derived class to register
+ * \param[in] name Name assigned to the pipeline handler, matching the pipeline
+ * subdirectory name in the source tree.
  *
  * Register a PipelineHandler subclass with the factory and make it available to
  * try and match devices.
diff --git a/test/ipa/ipa_interface_test.cpp b/test/ipa/ipa_interface_test.cpp
index 56f3cd6d..b489b5f6 100644
--- a/test/ipa/ipa_interface_test.cpp
+++ b/test/ipa/ipa_interface_test.cpp
@@ -56,7 +56,7 @@  protected:
 		const std::vector<PipelineHandlerFactoryBase *> &factories =
 			PipelineHandlerFactoryBase::factories();
 		for (const PipelineHandlerFactoryBase *factory : factories) {
-			if (factory->name() == "PipelineHandlerVimc") {
+			if (factory->name() == "vimc") {
 				pipe_ = factory->create(nullptr);
 				break;
 			}
diff --git a/test/ipa/ipa_module_test.cpp b/test/ipa/ipa_module_test.cpp
index bd5e0e4c..ae6f7a52 100644
--- a/test/ipa/ipa_module_test.cpp
+++ b/test/ipa/ipa_module_test.cpp
@@ -57,7 +57,7 @@  protected:
 		const struct IPAModuleInfo testInfo = {
 			IPA_MODULE_API_VERSION,
 			0,
-			"PipelineHandlerVimc",
+			"vimc",
 			"vimc",
 		};