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path: root/src/gstreamer/gstlibcamera-utils.h
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2022-11-12gstreamer: Provide framerate support for libcamerasrcRishikesh Donadkar
Control the framerate by passing the controls::FrameDurationLimits during Camera::start(). Framerate in gstreamer is expressed as GST_TYPE_FRACTION so we maximise on maintaining it as a fraction throughout and only do arithematic computations as and when required (to compute frame-duration and vice-versa). To weed out abritrary framerate as input, place the clamping via the controls::FrameDurationLimits provided after camera::configure() phase. This is handled by a helper function gst_libcamera_clamp_and_set_frameduration(). Set the bound checked framerate (done in the above mentioned helper) into the caps and pass the ControlList containing the frame-duration to Camera::start(ctrls). Signed-off-by: Rishikesh Donadkar <rishikeshdonadkar@gmail.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2022-07-04gstreamer: Use gst_task_resume() when availableLaurent Pinchart
The gst_libcamera_resume_task() helper is an implementation of the gst_task_resume() function that predates its addition to GStreamer. Use gst_task_resume() when available, and rename gst_libcamera_resume_task() to gst_task_resume() to support older GStreamer versions. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Vedant Paranjape <vedantparanjape160201@gmail.com>
2021-11-24gstreamer: Convert to pragma onceKieran Bingham
Remove the verbose #ifndef/#define/#endif pattern for maintaining header idempotency, and replace it with a simple #pragma once. This simplifies the headers, and prevents redundant changes when header files get moved. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
2021-09-28gstreamer: Fix spelling of the work manager used in a util functionVedant Paranjape
Fix all name in all instances of the function gst_libcamera_get_camera_mananger to gst_libcamera_get_camera_manager. Spelling of manager was incorrect. This patch has no functional changes. Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-08-26gstreamer: Fix concurrent access issues to CameraManagerNicolas Dufresne
It's not allowed to have multiple instances of CameraManager. This requirement is not easy for GStreamer were the device monitor and the camerasrc, or two camerasrc instances don't usually have any interaction between each other. Fix this by implementing a minimalist singleton around CameraManager constructor and start()/stop() operations. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-07gst: utils: Factor-out the task resume helperJakub Adam
Task resume will be added in the core GStreamer API in the future and we will need to call this in another location in the following patches. Signed-off-by: Jakub Adam <jakub.adam@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-07gst: utils: Add StreamConfiguration helpersNicolas Dufresne
This adds helpers to deal with the conversion from StreamConfiguration to caps and vice-versa. This is needed to implement caps negotiation. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-07gst: utils: Add simple scoped lockers for GMutex and GRectMutexNicolas Dufresne
While GLib has locker implementation already using g_autoptr(), recursive mutex locker was only introduced in recent GLib. Implement a simple locker for GMutex and GRectMutex in order to allow making locking simpler and safer. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-07gst: Add utility to convert StreamFormats to GstCapsNicolas Dufresne
This transforms the basic information found in StreamFormats to GstCaps. This can be handy to reply to early caps query or inside a device provider. Note that we ignored generated range as they are harmful to caps negotiation. We also don't simplify the caps for readability reasons, so some of the discrete value may be included in a range. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>