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MJPEG is an extremely useful format given its compression allows
high framerates even over limited bandwith USB connections. Add
an MJPEG encoder class that converts YUV420 data into MJPEG data.
Where a libcamera-source does not support MJPEG natively, convert
YUV420 into MJPEG if the user tries to set MJPEG format.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
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Allow callers to create a libcamera source when available. libcamera
support is optional, so conditionally compile the new options
depending on whether libcamera is available.
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
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Provide the integration of a libcamera source within uvc-gadget.
This adds C++ support to the project and adds libcamera as an
optional external dependency.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
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This release extends UVC Gadget with the ability to provide a
'slideshow' source.
This can assist in the testing of performance and capabilities of a UVC
Gadget based device, by providing a known set of data frames and
configurations to stream to the host.
Further more this release contains:
- lib/timer: Add timer infrastructure
- lib/jpg-source: Constrain fps
These allow sources with out a controlling device to be configured to
deliver at the rate requested by the host.
Finally, the Makefile 'helper' is fixed to correctly call the install
target in ninja.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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This release culminates being able to integrate many historical changes
and updates that we had pending for quite some time along with some
bugfixes and clean ups.
Key new features already added to this release include:
- SuperSpeed descriptor support
- MJPEG support fixes
- Update to support new gadget locations
- Conversion to Meson build infrastructure
- A new test pattern source generator
- Support for JPEG sources
- Improved logging
- Commencement of control support
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Provide infrastructure to be able to build the uvc-gadget library as a
shared object and an executable which links against this as a dependency
to implment the reference 'uvc-gadget' application.
All existing cmake infrastructure is removed. This removes custom glob
support that was previously used by an early development for Android,
which is expected to be re-added later when required.
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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