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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>
2022-11-22video-source: add fill_bufferPaul Elder
We are preparing to allow video sources whose data is generated in userspace. To this end, add a fill_buffer function to video_source. Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@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>
2019-02-06stream, uvc: add uvc_stream_set_frame_ratePaul Elder
We would like to be able to set the frame rate of the video source of a stream. This patch adds such a function to set the source's frame rate from the stream. The frame rate is set right after the format is set. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-06video-source: add video_source_set_frame_ratePaul Elder
We would like to be able to set the frame rate for video sources. This patch adds a set_frame_rate op for video sources, along with a wrapper to call video sources' set_frame_rate functions. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2018-07-31lib: Compile custom glob() implementation for AndroidPaul Elder
The Android C library doesn't provide the glob() function which we use in the configfs code. Add conditional compilation to cmake such that a local copy of glob is automatically compiled if glob isn't provided. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-07-31lib: glob: Fix compilation on AndroidLaurent Pinchart
The glibc glob() implementation doesn't compile on Android due to missing support for getlogin_r (before Android ABI 28) and to missing __THROW, __THROWNL and __attribute_noinline__ macros. getlogin_r is only used to implement support for the '~' path component which we don't use in the uvc-gadget library, so we can compile it out. The three macros can safely be defined as no-op. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-07-31lib: Import glob.c from glibc 2.26Laurent Pinchart
The Android libc implementation (bionic) doesn't provide the glob() function. To enable compilation of the UVC gadget library for Android, import the glibc glob() implementation. The glob.c and glob.h files are imported unmodified to ease copyright management, even if they don't compile as-is. Compilation will be fixed separately. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-06-12Import the g_uvc.h header from the kernel sourcesLaurent Pinchart
In order to avoid depending on an external kernel source tree recent enough to provide the g_uvc.h header, import in the the project. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-06-12lib: Relicense code under the LGPL-2.1+Laurent Pinchart
To allow usage of the UVC gadget library in closed-source or otherwise GPL-incompatible applications, relicense the library under the terms of the LGPL v2.1 or later, as published by the Free Software Foundation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-06-12Update copyright dates and ownerLaurent Pinchart
Ideas on Board SPRL, the original copyright owner of the UVC gadget application code, has been dissolved. All company copyrights have been transferred to Laurent Pinchart. Update the copyright notices to accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-06-12Use SPDX headersLaurent Pinchart
Replace the boilerplate copyright headers with an SPDX header to ease license compliance. This doesn't change the license of any of the files. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-06-12Split UVC gadget into a library and test applicationLaurent Pinchart
Split the project into a UVC gadget library and a test application. To avoid rolling out a custom build system, switch to CMake. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>