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2022-11-30lib/timer: Add timer infrastructureDaniel Scally
Some sources simply fill the buffers passed by the USB subsystem and return them as quickly as possible. Particularly with compressed formats operating at superspeed this rapidly results in unrealistic frame rates. Add infrastructure that allows us to define a specific framerate and introduce blocking calls that constrain those sources to the framerates expected by the host. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
2022-11-22jpg-source: add jpg source classPaul Elder
The jpg_source class is an implementation of the video_source class that streams a still jpg image as video. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-11-22test-source: add test source classPaul Elder
The test_source class is an implementation of the video_source class that generates a test pattern in userspace to provide video. We have some operations which are implemented as no-ops. To quiet the compiler warnings this causes, flag their arguments as unused. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-11-22meson: Convert CMake to Meson build infrastructureKieran Bingham
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>