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2024-07-26gstreamer: Fix width and height range handlingHou Qi
This changes is fixing critical error message "gst_value_set_int_range_step: assertion 'start < end' failed" observed when building GStreamer caps from a stream configuration whose size range holds a single size. GStreamer range step definition requires distinct min and max values definitions, otherwise above error message is output. libcamera SizeRange instance may return a single size leading to identical min and max values. Add a conditional check where the min and max of the range are distinct during iterating the supported sizes for each pixelformat. To prevent appending structures that are already expressed with this update, gst_caps_merge_structure() is used in place of gst_caps_append_structure(). Signed-off-by: Hou Qi <qi.hou@nxp.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-25gst: Add child proxy support to libcamerasrcNicolas Dufresne
The child proxy interface is needed in order to allow setting properties on pad using parse launch syntax. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-25gstreamer: allocator: Ensure camera manager stay aliveNicolas Dufresne
Without the camera manager, it is not possible to cleanly delete the FrameBufferAllocator object. Keep the camera manager alive until all the memory object have been released. A shared_ptr to the CameraManager is introduced which is itself stored as a plain pointer and allocated and released explicitly. When more than one C++ member is required, this can be refactored to use a new C++ class, but the struct _GstLibcameraAllocator is allocated and freed by glib, so it does not have automatic destruction presently. Bug: https://bugs.libcamera.org/show_bug.cgi?id=211 [Kieran: Update test framework to remove expected test fail] Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-25gstreamer: pool: Replace GstAtomicQueue with deque and mutexNicolas Dufresne
The GstAtomicQueue only supports 2 threads, one pushing, and one popping. We pop and push on error cases and we may have multiple threads downstream returning buffer (using tee), which breaks this assumption. On top of which, the release function, that notifies when the queue goes from empty to not-empty relies on a racy empty check. The downstream thread that does this check is effectively concurrent with our thread calling acquire(). Fix this by replacing the GstAtomicQueue with a std::deque, and protect access to that using the object lock. Bug: https://bugs.libcamera.org/show_bug.cgi?id=201 Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-05-21treewide: Query list of cameras just onceBarnabás Pőcze
This is more efficient since only a single vector will be constructed, and furthermore, it prevents the TOCTOU issue that might arise when the list of cameras changes between the two queries. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-05-14gstreamer: Use copied camera nameBarnabás Pőcze
The camera name is copied in gst_libcamera_src_open() as we can't hold the lock protecting the name while calling GST_ELEMENT_ERROR(). The GST_ELEMENT_ERROR() macro sends a message on the bus, taking more locks and possibly causing issues. However, the current code makes the copy, but does not actually use it. So fix that. Fixes: 58feb69f852289 ("gst: libcamerasrc: Implement selection and acquisition") Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-05-14gstreamer: Fix string memory leakBarnabás Pőcze
The string returned by `gst_video_colorimetry_to_string()` has to be freed, this was missing. Fixes: fc9783acc6083a ("gstreamer: Provide colorimetry <> ColorSpace mappings") Signed-off-by: Barnabás Pőcze <pobrn@protonmail.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>
2024-05-09libcamera: Drop remaining file name from header comment blocksLaurent Pinchart
Source files in libcamera start by a comment block header, which includes the file name and a one-line description of the file contents. While the latter is useful to get a quick overview of the file contents at a glance, the former is mostly a source of inconvenience. The name in the comments can easily get out of sync with the file name when files are renamed, and copy & paste during development have often lead to incorrect names being used to start with. Readers of the source code are expected to know which file they're looking it. Drop the file name from the header comment blocks in all remaining locations that were not caught by the automated script as they are out of sync with the file name. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
2024-05-08libcamera: Drop file name from header comment blocksLaurent Pinchart
Source files in libcamera start by a comment block header, which includes the file name and a one-line description of the file contents. While the latter is useful to get a quick overview of the file contents at a glance, the former is mostly a source of inconvenience. The name in the comments can easily get out of sync with the file name when files are renamed, and copy & paste during development have often lead to incorrect names being used to start with. Readers of the source code are expected to know which file they're looking it. Drop the file name from the header comment block. The change was generated with the following script: ---------------------------------------- dirs="include/libcamera src test utils" declare -rA patterns=( ['c']=' \* ' ['cpp']=' \* ' ['h']=' \* ' ['py']='# ' ['sh']='# ' ) for ext in ${!patterns[@]} ; do files=$(for dir in $dirs ; do find $dir -name "*.${ext}" ; done) pattern=${patterns[${ext}]} for file in $files ; do name=$(basename ${file}) sed -i "s/^\(${pattern}\)${name} - /\1/" "$file" done done ---------------------------------------- This misses several files that are out of sync with the comment block header. Those will be addressed separately and manually. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
2024-02-02gstreamer: Map 10/12/14/16 bayer formats supportsNicolas Dufresne
These formats are now defined in upstream GStreamer main branch, so it is now safe to use their names. Note that libcamera only supports little endian variants of these formats. 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>
2024-02-02gstreamer: Map R8/R16 pixel formatNicolas Dufresne
This enables monochrome support in libcamerasrc. 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>
2024-01-23gstreamer: Add meson devenv supportNicolas Dufresne
This change to the build system will prepend the plugin build directory to GST_PLUGIN_PATH environment. This makes the built plugin visible to GStreamer inside meson devenv enabling uninstalled testing. In order to avoid polluting the user registry, the GST_REGISTRY environment is also set. 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> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-01-09gstreamer: Support for pre-1.16 GstEventLaurent Pinchart
The gst_clear_event() function used by libcamerasrc has been introduced in GStreamer 1.16, while libcamera claims to need 1.14 or newer. This causes a compilation error. Fix it by copying the gst_clear_event() implementation to gstlibcamera-utils.h when compiling with older GStreamer version. The version check makes it clear that the workaround is needed with older versions only, flagging it for removal when the minimum GStreamer version requirement will be bumped. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-12-07gstreamer: Implement renegotiationJaslo Ziska
This commit implements renegotiation of the camera configuration and source pad caps. A renegotiation can happen when a downstream element decides to change caps or the pipeline is dynamically changed. To handle a renegotiation the GST_FLOW_NOT_NEGOTIATED return value has to be handled in GstLibcameraSrcState::processRequest(). Otherwise the default would be to print an error and stop streaming. To archive this in a clean way the if statement is altered into a switch statement which now also has a case for GST_FLOW_NOT_NEGOTIATED. In the case of GST_FLOW_NOT_NEGOTIATED every source pad is checked for the reconfiguration flag with gst_pad_needs_reconfigure() which does not clear this flag. If at least one pad requested a reconfiguration the function returns without an error and the renegotiation will happen later in the running task. If no pad requested a reconfiguration then the function will return with an error. In gst_libcamera_src_task_run() the source pads are checked for the reconfigure flag by calling gst_pad_check_reconfigure() and if one pad returns true and the caps are not sufficient anymore then the negotiation is triggered. It is fine to trigger the negotiation after only a single pad returns true for gst_pad_check_reconfigure() because the reconfigure flags are cleared in the gst_libcamera_src_negotiate() function. If any pad requested a reconfiguration the following will happen: 1. The camera is stopped because changing the configuration may not happen while running. 2. The completedRequests queue will be cleared by calling GstLibcameraSrcState::clearRequests() because the completed buffers have the wrong configuration. 3. The new caps are negotiated by calling gst_libcamera_src_negotiate(). When the negotiation fails streaming will stop. 4. The camera is started again. Signed-off-by: Jaslo Ziska <jaslo@ziska.de> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2023-12-07gstreamer: Add GstLibcameraSrcState::clearRequests methodJaslo Ziska
Add a clearRequests() function to GstLibcameraSrcState which clears the GstLibcameraSrcState::completedRequests_ queue. Use this new function in gst_libcamera_src_task_leave() instead of doing it manually. Signed-off-by: Jaslo Ziska <jaslo@ziska.de> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2023-12-07gstreamer: Move negotiation logic to separate functionJaslo Ziska
Move the code which negotiates all the source pad caps into a separate function called gst_libcamera_src_negotiate(). When the negotiation fails this function will return false and true otherwise. Use this function instead of doing the negotiation manually in gst_libcamera_src_task_enter() and remove the now redundant error handling code accordingly. Signed-off-by: Jaslo Ziska <jaslo@ziska.de> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2023-11-23gstreamer: Fix unused variable errorJaslo Ziska
Commit fd84180d7a09 ("gstreamer: Implement element EOS handling") has introduced a compilation warning with clang: ../../src/gstreamer/gstlibcamerasrc.cpp:768:23: error: unused variable 'oldEvent' [-Werror,-Wunused-variable] g_autoptr(GstEvent) oldEvent = self->pending_eos.exchange(event); ^ This seems to be a false positive, but nonetheless breaks the build. Fix it. Fixes: fd84180d7a09 ("gstreamer: Implement element EOS handling") Signed-off-by: Jaslo Ziska <jaslo@ziska.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2023-11-22gstreamer: Implement element EOS handlingJaslo Ziska
This commit implements EOS handling for events sent to the libcamerasrc element by the send_event method (which can happen when pressing Ctrl-C while running gst-launch-1.0 -e, see below). EOS events from downstream elements returning GST_FLOW_EOS are not considered here. To archive this add a function for the send_event method which handles the GST_EVENT_EOS event. This function will set an atomic to the received event and push this EOS event to all source pads in the running task. Also set the GST_ELEMENT_FLAG_SOURCE flag to identify libcamerasrc as a source element which enables it to receive EOS events sent to the (pipeline) bin containing it. This in turn enables libcamerasrc to receive EOS events, for example, from gst-launch-1.0 with the -e (--eos-on-shutdown) flag applied. Bug: https://bugs.libcamera.org/show_bug.cgi?id=91 Signed-off-by: Jaslo Ziska <jaslo@ziska.de> Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
2023-07-07meson: Fix space around colon issuesLaurent Pinchart
The meson style, which libcamera follows, recommends a space before colons in function parameters. Fix the style violations through the project. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2023-07-04libcamera: Remove `StreamRoles` aliasBarnabás Pőcze
Now that `Camera::generateConfiguration()` takes a `libcamera::Span` of `StreamRole`, remove the `StreamRoles` type, which was an alias to `std::vector<libcamera::StreamRole>`. The removal has two reasons: - it is no longer strictly necessary, - its presence may suggest that that is the preferred (or correct) way to build/pass a list of `StreamRole`. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> [Kieran: Fix small checkstyle report on roles initialiser] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-06-28gstreamer: Drop libcamera_private dependencyUmang Jain
Drop libcamera_private dependency entirely as to avoid libcamerasrc getting more dependent on it. In order to achieve that, one of the mutex locks in GstLibcameraSrcState needs to be replaced with GMutex. However doing so, this won't let us to use the clang's thread annotation macros in libcamera (which should be fine as libcamerasrc would move out of libcamera repo once matured). Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
2023-06-18gstreamer: Add enable_auto_focus option to the GStreamer pluginCedric Nugteren
Cameras such as the PiCam 3 support auto-focus, but the GStreamer plugin for libcamera does not enable auto-focus. With this patch auto-focus can be enabled for cameras that support it. By default it is disabled, which means default behaviour remains unchanged. For cameras that do not support auto-focus, an error message shows up if auto-focus is enabled. This was tested on cameras that do not support auto-focus (e.g. PiCam2) and was tested on a camera that does support auto-focus (PiCam3). The test involved setting the focus to AfModeContinous and observing it. However, by not setting "auto-focus-mode" or using AfModeManual as the "auto-focus-mode" both resulting in auto-focus being disabled. Bug: https://bugs.libcamera.org/show_bug.cgi?id=188 Signed-off-by: Cedric Nugteren <cedric@plumerai.com> Reviewed-by: Maarten Lankhorst <dev@lankhorst.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
2023-01-05libcamera: Use C++17 [[fallthrough]] everywhereMatti Lehtimäki
Fixes build failure on some build environments. Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-12-24gstreamer: Add bayer8 support to libcamerasrc elementPavel Machek
Bayer8 support is useful on hardware such as Librem 5, as GStreamer provides easy solution for debayering and display of the camera data. Add necessary glue to libcamerasrc element. Signed-off-by: Pavel Machek <pavel@ucw.cz> 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>
2022-11-25libcamera: stream: Turn StreamRole into scoped enumerationLaurent Pinchart
The StreamRole enum has enumerators such as 'Raw' that are too generic to be in the global libcamera namespace. Turn it into a scoped enum to avoid namespace clashes, and update users accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2022-11-21gstreamer: Do not lookup controls by idJacopo Mondi
The libcamerasrc element looks for the availability of the FrameDurationLimits control by looking it up by numeric control id. The ControlinfoMap::find(unsigned int i) function searches the control numerical identifier on the ContorlInfoMap::idMap_ class member, which might be not initialized if the pipeline handler does not register any control, causing an invalid memory access. Avoid looking up the control by numerical id and use the ControlId instance instead to prevent that. Fixes: ccfe0a1af77c ("gstreamer: Provide framerate support for libcamerasrc") Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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>
2022-11-12gstreamer: Do not expose the caps before configuring the cameraRishikesh Donadkar
Configure the camera before exposing the caps valid controls values (and bounds) are available. These control values might be of interest to be exposed on the capabilites, which otherwise, would not be available if the camera is configured after the update caps event. For instance, the FrameDurationLimits are computed by RPi's IPA in its configure(). Hence, we need to Camera::configure() to happen in order to know the FrameDurationLimits, that can be exposed in the caps. This ties into the framerate support for libcamerasrc which will happen in a follow-up commit. 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: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-09-12gstreamer: Check gstreamer version before using newer macrosVedant Paranjape
GST_VIDEO_TRANSFER_BT601 and GST_VIDEO_TRANSFER_BT2020_10 macros are defined in GST Version 1.18.0. Usage of these macros causes gstlibcamera compilation failure if GST_VERSION < 1.18.0. These macros are used only if GST_VERSION >= 1.18.0. Fix the following compilation error: ../src/gstreamer/gstlibcamera-utils.cpp:157:7: error: ‘GST_VIDEO_TRANSFER_BT601’ was not declared in this scope; did you mean ‘GST_VIDEO_TRANSFER_BT709’? 157 | case GST_VIDEO_TRANSFER_BT601: | ^~~~~~~~~~~~~~~~~~~~~~~~ | GST_VIDEO_TRANSFER_BT709 ../src/gstreamer/gstlibcamera-utils.cpp:159:7: error: ‘GST_VIDEO_TRANSFER_BT2020_10’ was not declared in this scope; did you mean ‘GST_VIDEO_TRANSFER_BT2020_12’? 159 | case GST_VIDEO_TRANSFER_BT2020_10: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ | GST_VIDEO_TRANSFER_BT2020_12 Fixes: fc9783acc608 ("gstreamer: Provide colorimetry <> ColorSpace mappings") Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Rishikesh Donadkar <rishikeshdonadkar@gmail.com> Reviewed-by: Rishikesh Donadkar <rishikeshdonadkar@gmail.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
2022-09-01gstreamer: Provide colorimetry <> ColorSpace mappingsRishikesh Donadkar
Provide colorimetry <=> libcamera::ColorSpace mappings via: - GstVideoColorimetry colorimetry_from_colorspace(colorspace); - ColorSpace colorspace_from_colorimetry(colorimetry); Read the colorimetry field from caps into the stream configuration. After stream validation, the sensor supported colorimetry will be retrieved and the caps will be updated accordingly. Colorimetry support for gstlibcamera currently undertakes only one argument. Multiple colorimetry support shall be introduced in subsequent commits. Signed-off-by: Rishikesh Donadkar <rishikeshdonadkar@gmail.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2022-08-24gstreamer: Add support for additional RGB formatsLaurent Pinchart
libcamerasrc only supports three RGB formats. Adding the other RGB formats supported by libcamera is trivial, do so. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Xavier Roumegue <xavier.roumegue@oss.nxp.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2022-08-16libcamera: base: Make message.h and mutex.h privateLaurent Pinchart
The message.h and mutex.h headers are not used in the libcamera public API. Make them private to avoid there usage in applications, and to prevent having to maintain them with a stable ABI. As mutex.h is used by libcamerasrc, the GStreamer element must switch from the libcamera_public to the libcamera_private dependency. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-07-19gstreamer: Be pedantic on srcpads accessUmang Jain
Use the std::vector::back() instead of [0] index which corresponds to std::vector::push_back() for tracking of pads. This doesn't introduce a functional change as the gst_libcamera_src_init() will only add one pad but it helps with readability. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-07-19libcamera: controls: Use std::optional to handle invalid control valuesChristian Rauch
Previously, ControlList::get<T>() would use default constructed objects to indicate that a ControlList does not have the requested Control. This has several disadvantages: 1) It requires types to be default constructible, 2) it does not differentiate between a default constructed object and an object that happens to have the same state as a default constructed object. std::optional<T> additionally stores the information if the object is valid or not, and therefore is more expressive than a default constructed object. Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-07-04gstreamer: Fix race conditions in task pause/resumeLaurent Pinchart
The task run function races with two other threads that want to resume the task: the requestCompleted() handler and the buffer-notify signal handler. If the former queues completed requests or the latter queues back buffers to the pool, and then resume the task, after the task run handler checks the queues but before it attemps to pause the task, then the task may be paused without noticing that more work is available. The most immediate way to fix this is to take the stream_lock in the requestCompleted() and buffer-notify signal handlers, or cover the whole task run handler with the GstLibcameraSrcState lock. This could cause long delays in the requestCompleted() handler, so that's not a good option. Instead, pause the task unconditionally at the beginning of its run function, and track while processing buffers and requests if the task needs to be resumed. It may also get resumed externally by the buffer-notify signal handler or the request completion handler, which are guaranteed not to race due to the lock taken by the gst_task_pause() and gst_task_resume() functions. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
2022-07-04gstreamer: Split completed request processing to a separate functionLaurent Pinchart
Simplify the task run function futher by moving the processing of completed requests to a separate function. No functional change intended, only increased readability. 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>
2022-07-04gstreamer: Split request creation to a separate functionLaurent Pinchart
In order to prepare for creation and queuing of multiple requests, move the request creation and queueing code to a separate function. No functional change intended. 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>
2022-07-04gstreamer: Fix pads lockingLaurent Pinchart
The srcpads_ vector is protected by two different locks, the GstObject lock of the libcamerasrc element, and the stream_lock that covers the run function of the thread. This isn't correct. Use the stream_lock consistently to protect the pads. 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>
2022-07-04gstreamer: Use dedicated lock for request queuesLaurent Pinchart
Add a new lock to the GstLibcameraSrcState class to protect the queued and completed requests queues. This replaces the GstObject lock, and minimizes the lock contention between the request completion handler and the task run handler as the former must run as fast as possible. 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>
2022-07-04gstreamer: Combine the two pad loops in the task run handlerLaurent Pinchart
This simplifies the code, and allows removing the internal queue in the GstLibcameraPad object. 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>
2022-07-04gstreamer: Handle completed requests in the libcamerasrc taskLaurent Pinchart
Move the request wrap to a completed queue in the request completion handler to move more of the request completion processing to the libcamerasrc task. This lowers the amount of time spent in the completion handler, and prepares for reworking the usage of locks. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2022-07-04gstreamer: Rename queued requests queue to queuedRequests_Laurent Pinchart
To prepare for the addition of a completed requests queue, rename the existing queued requests queue from requests_ to queuedRequests_. 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>
2022-07-04gstreamer: Move timestamp calculation out of pad loopLaurent Pinchart
The buffer pts and the pad latency are computed from the framebuffer timestamp, separately for each pad. Use the sensor timestamp provided through the request metadata instead, to compute the values once outside of the pads loop. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2022-07-04gstreamer: Pass Stream to RequestWrap::addBuffer()Laurent Pinchart
For symmetry with RequestWrap::removeBuffer(), pass the Stream pointer to addBuffer(). This handles streams at the GstPad level instead of the GstBuffer level, which allows making the GstLibcameraPool API a bit cleaner by removing the gst_libcamera_buffer_get_stream() helper function. 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>
2022-07-04gstreamer: Move variable to loop scopeLaurent Pinchart
The GstBuffer variable in GstLibcameraSrcState::requestCompleted() is only used within the loop scope. Make it a local loop variable. 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>
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>
2022-03-29gstreamer: Fix typo in commentLaurent Pinchart
Possibly the most trivial patch. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-01-19gstreamer: gstlibcamerasrc: Fix include orderingKieran Bingham
The libcamera coding style has libcamera headers after system headers, and before any other library headers. Move the libcamera headers above the Gst headers accordingly. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2021-12-04libcamera: base: shared_fd: Rename fd() to get()Laurent Pinchart
For consistency with UniqueFD, rename the fd() function to get(). Renaming UniqueFD::get() to fd() would have been another option, but was rejected to keep as close as possible to the std::shared_ptr<> and std::unique_ptr<> APIs. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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>