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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2021, Vedant Paranjape
 *
 * libcamera Gstreamer element API tests
 */

#include "gstreamer_test.h"

#include "test.h"

using namespace std;

extern "C" {
const char *__asan_default_options()
{
	/*
	 * Disable leak detection due to a known global variable initialization
	 * leak in glib's g_quark_init(). This should ideally be handled by
	 * using a suppression file instead of disabling leak detection.
	 */
	return "detect_leaks=false";
}
}

GstreamerTest::GstreamerTest()
	: pipeline_(nullptr), libcameraSrc_(nullptr)
{
	/*
	* GStreamer by default spawns a process to run the
	* gst-plugin-scanner helper. If libcamera is compiled with ASan
	* enabled, and as GStreamer is most likely not, this causes the
	* ASan link order check to fail when gst-plugin-scanner
	* dlopen()s the plugin as many libraries will have already been
	* loaded by then. Fix this issue by disabling spawning of a
	* child helper process when scanning the build directory for
	* plugins.
	*/
	gst_registry_fork_set_enabled(false);

	/* Initialize GStreamer */
	g_autoptr(GError) errInit = NULL;
	if (!gst_init_check(nullptr, nullptr, &errInit)) {
		g_printerr("Could not initialize GStreamer: %s\n",
			   errInit ? errInit->message : "unknown error");

		status_ = TestFail;
		return;
	}

	/*
	* Remove the system libcamera plugin, if any, and add the
	* plugin from the build directory.
	*/
	GstRegistry *registry = gst_registry_get();
	g_autoptr(GstPlugin) plugin = gst_registry_lookup(registry, "libgstlibcamera.so");
	if (plugin)
		gst_registry_remove_plugin(registry, plugin);

	std::string path = libcamera::utils::libcameraBuildPath() + "src/gstreamer";
	if (!gst_registry_scan_path(registry, path.c_str())) {
		g_printerr("Failed to add plugin to registry\n");

		status_ = TestFail;
		return;
	}

	status_ = TestPass;
}

GstreamerTest::~GstreamerTest()
{
	g_clear_object(&pipeline_);
	g_clear_object(&libcameraSrc_);

	gst_deinit();
}

int GstreamerTest::createPipeline()
{
	libcameraSrc_ = gst_element_factory_make("libcamerasrc", "libcamera");