[libcamera-devel] [PATCH v4 00/12] Raspberry Pi: Platform configuration and buffer allocation improvements

[Naushir Patuck]

Another ping.  Anyone have time to provide some feedback?

Thanks,
Naush

On Tue, 10 Jan 2023 at 09:01, Naushir Patuck <naush at raspberrypi.com> wrote:

> Hi all,
>
> Just a gentle ping to get some feedback on this series.
>
> Many thanks,
> Naush
>
>
> On Fri, 9 Dec 2022 at 09:01, Naushir Patuck <naush at raspberrypi.com> wrote:
>
>> Hi,
>>
>> As mentioned in another email, this version fixes a minor regression
>> introduced
>> in version 3 where the delayed stream on for the ISP nodes causes some
>> frame
>> drops.  This comes at the expense of allocating an additional buffer for
>> the ISP
>> output when we have to drop frames for 3A convergence.
>>
>> Thanks,
>> Naush
>>
>> Naushir Patuck (12):
>>   libcamera: stream: Add stream hints to StreamConfiguration
>>   libcamera: pipeline: Add a platform configuration file helper
>>   pipeline: raspberrypi: Add a pipeline config structure
>>   pipeline: raspberrypi: Reorder startup drop frame initialisation
>>   pipeline: raspberrypi: Handle MandatoryRequestBuffer hints for Unicam
>>     Image
>>   libcamera: pipeline: build: Add pipeline_data_dir variable
>>   pipeline: raspberrypi: Read config parameters from a file
>>   pipeline: raspberrypi: Handle MandatoryRequestBuffer hints for ISP
>>     Output0
>>   pipeline: raspberrypi: Validate MandatoryRequestBuffer in
>>     queueRequestDevice()
>>   pipeline: raspberrypi: Add a parameter to disable startup drop frames
>>   pipeline: raspberrypi: Allow pipeline handler to always use the newest
>>     frame
>>   pipeline: raspberrypi: Add minimal memory usage config file
>>
>>  include/libcamera/internal/pipeline_handler.h |   3 +
>>  include/libcamera/stream.h                    |   8 +
>>  src/libcamera/pipeline/meson.build            |   3 +
>>  .../pipeline/raspberrypi/data/example.yaml    |  29 +++
>>  .../pipeline/raspberrypi/data/meson.build     |   9 +
>>  .../raspberrypi/data/minimal_mem.yaml         |  29 +++
>>  .../pipeline/raspberrypi/meson.build          |   2 +
>>  .../pipeline/raspberrypi/raspberrypi.cpp      | 216 +++++++++++++++---
>>  src/libcamera/pipeline_handler.cpp            |  60 +++++
>>  src/libcamera/stream.cpp                      |  24 ++
>>  10 files changed, 352 insertions(+), 31 deletions(-)
>>  create mode 100644 src/libcamera/pipeline/raspberrypi/data/example.yaml
>>  create mode 100644 src/libcamera/pipeline/raspberrypi/data/meson.build
>>  create mode 100644
>> src/libcamera/pipeline/raspberrypi/data/minimal_mem.yaml
>>
>> --
>> 2.25.1
>>
>>
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