[libcamera-devel] [PATCH v3 0/5] libcamera: Initialize controls in the IPA

[Jacopo Mondi]

During the review of v1 it has been pointed out by Umang that:

# LIBCAMERA_IPA_FORCE_ISOLATION=1 cam -c1 --list-controls
[0:10:59.880617099] [11495] ERROR IPU3 ipu3.cpp:1201 Exposure control not initializaed by the IPA
Camera 1 not found

The issue boils down to the fact the control deserialization procedure
re-creates ControlId to populate the deserialized ControlIdMap.

As we have globally available ControlIdMap, the ControlId * should be taken from
there when possible, in order to allow lookup by id.

With the new patches:

# LIBCAMERA_IPA_FORCE_ISOLATION=1 cam -c1 --list-controls
Using camera \_SB_.PCI0.I2C2.CAM0 as cam0
Control: ScalerCrop: [(0x0)/1344x736..(0x0)/4224x3136]
Control: PipelineDepth: [2..3]
Control: TestPatternMode: [0..2]
Control: FrameDurationLimits: [31425..320388]
Control: ExposureTime: [41..33306]

Next, when addressing the update of ControlInfoMap due to a camera configuration
the de-serializer caching mechanism will probably play a role. But that's for
later.

Thanks
   j

v2->v3:
- Fix spelling in commit messages as suggested by Paul and collect tags

- [1/5]:
  - ControlInfoMap::validate()
  - Rework ControlInfoMap documentation as suggested by Laurent

- [2/5]:
  - Moved test earlier and simplified code

- [3/5]
  - Drop 'enum class' and use Laurent's suggested naming
  - Simplify de-serializer code that uses a localIdMap as suggested by Laurent

- [4/5]
  - Change IPAIPU3::init() prototype

       init(libcamera.IPASettings settings,
            libcamera.IPACameraSensorInfo sensorInfo,
            libcamera.ControlInfoMap sensorControls)

  - Move exposureTime_ initialization in PH back to initControls()

v1->v2:
- [1/5]. [2/5], [3/5]: new patches
- [4/5]
  - Do not remove IPASettings but include it it IPAInitInfo
  - Rework a todo item as suggested by Laurent
  - Remove an non necessay initialization
 - [5/5]
  - Collect tags





Jacopo Mondi (5):
  libcamera: controls: Create ControlInfoMap with ControlIdMap
  test: control serialization: Test lookup by ControlId
  libcamera: controls: Use ControlIdMap in deserialization
  libcamera: ipu3: Initialize controls in the IPA
  ipa: ipu3: Tidy-up includes

 include/libcamera/controls.h                  | 13 ++-
 .../libcamera/internal/control_serializer.h   |  1 +
 include/libcamera/internal/v4l2_device.h      |  1 +
 include/libcamera/ipa/ipa_controls.h          |  9 +-
 include/libcamera/ipa/ipu3.mojom              |  5 +-
 include/libcamera/ipa/raspberrypi.h           | 40 ++++----
 src/ipa/ipu3/ipu3.cpp                         | 78 ++++++++++++++-
 src/ipa/ipu3/ipu3_agc.cpp                     |  2 +-
 src/ipa/ipu3/ipu3_agc.h                       |  3 -
 src/ipa/ipu3/ipu3_awb.cpp                     |  3 +-
 src/libcamera/control_serializer.cpp          | 66 +++++++++++--
 src/libcamera/controls.cpp                    | 94 +++++-------------
 src/libcamera/ipa_controls.cpp                | 29 ++++++
 src/libcamera/pipeline/ipu3/ipu3.cpp          | 98 ++++++++-----------
 src/libcamera/pipeline/rkisp1/rkisp1.cpp      |  3 +-
 src/libcamera/pipeline/uvcvideo/uvcvideo.cpp  |  2 +-
 src/libcamera/pipeline/vimc/vimc.cpp          |  2 +-
 src/libcamera/v4l2_device.cpp                 |  3 +-
 test/serialization/control_serialization.cpp  |  9 ++
 .../ipa_data_serializer_test.cpp              | 14 +--
 20 files changed, 292 insertions(+), 183 deletions(-)

--
2.32.0