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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Collabora Ltd.
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
*
* GStreamer libcamera Utility Functions
*/
#pragma once
#include <libcamera/camera_manager.h>
#include <libcamera/controls.h>
#include <libcamera/stream.h>
#include <gst/gst.h>
#include <gst/video/video.h>
GstCaps *gst_libcamera_stream_formats_to_caps(const libcamera::StreamFormats &formats);
GstCaps *gst_libcamera_stream_configuration_to_caps(const libcamera::StreamConfiguration &stream_cfg,
GstVideoTransferFunction transfer);
void gst_libcamera_configure_stream_from_caps(libcamera::StreamConfiguration &stream_cfg,
GstCaps *caps, GstVideoTransferFunction *transfer);
void gst_libcamera_get_framerate_from_caps(GstCaps *caps, GstStructure *element_caps);
void gst_libcamera_clamp_and_set_frameduration(libcamera::ControlList &controls,
const libcamera::ControlInfoMap &camera_controls,
GstStructure *element_caps);
void gst_libcamera_framerate_to_caps(GstCaps *caps, const GstStructure *element_caps);
#if !GST_CHECK_VERSION(1, 16, 0)
static inline void gst_clear_event(GstEvent **event_ptr)
{
g_clear_pointer(event_ptr, gst_mini_object_unref);
}
#endif
#if !GST_CHECK_VERSION(1, 17, 1)
gboolean gst_task_resume(GstTask *task);
#endif
std::shared_ptr<libcamera::CameraManager> gst_libcamera_get_camera_manager(int &ret);
/**
* \class GLibLocker
* \brief A simple scoped mutex locker for GMutex
*/
class GLibLocker
{
public:
GLibLocker(GMutex *mutex)
: mutex_(mutex)
{
g_mutex_lock(mutex_);
}
GLibLocker(GstObject *object)
: mutex_(GST_OBJECT_GET_LOCK(object))
{
g_mutex_lock(mutex_);
}
~GLibLocker()
{
g_mutex_unlock(mutex_);
}
private:
GMutex *mutex_;
};
/**
* \class GLibRecLocker
* \brief A simple scoped mutex locker for GRecMutex
*/
class GLibRecLocker
{
public:
GLibRecLocker(GRecMutex *mutex)
: mutex_(mutex)
{
g_rec_mutex_lock(mutex_);
}
~GLibRecLocker()
{
g_rec_mutex_unlock(mutex_);
}
private:
GRecMutex *mutex_;
};
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