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authorVedant Paranjape <vedantparanjape160201@gmail.com>2021-09-08 13:24:42 +0530
committerPaul Elder <paul.elder@ideasonboard.com>2021-09-08 17:40:53 +0900
commit39c2d5dc95e46b8c1659b721521e4e438ab7d8a3 (patch)
tree55a422523a840363e0dcf24071238e09a95c9a59 /test/gstreamer/gstreamer_test.cpp
parenta25710428e1a6ef9fff3d70e3f50c01a88cde9f2 (diff)
test: gstreamer: Factor out code into a base class
A lot of code used in the single stream test is boiler plate and common across every gstreamer test. Factor out this code into a base class called GstreamerTest. Also update the gstreamer_single_stream_test to use the GstreamerTest base class. Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Diffstat (limited to 'test/gstreamer/gstreamer_test.cpp')
-rw-r--r--test/gstreamer/gstreamer_test.cpp155
1 files changed, 155 insertions, 0 deletions
diff --git a/test/gstreamer/gstreamer_test.cpp b/test/gstreamer/gstreamer_test.cpp
new file mode 100644
index 00000000..dbdcaec0
--- /dev/null
+++ b/test/gstreamer/gstreamer_test.cpp
@@ -0,0 +1,155 @@
+/* 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()
+{
+ /*
+ * 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()
+{
+ if (libcameraSrc_ &&
+ !gst_object_has_as_ancestor(GST_OBJECT(libcameraSrc_),
+ GST_OBJECT(pipeline_)))
+ gst_object_unref(libcameraSrc_);
+ if (pipeline_)
+ gst_object_unref(pipeline_);
+
+ gst_deinit();
+}
+
+int GstreamerTest::createPipeline()
+{
+ g_autoptr(GstElement) libcameraSrc = gst_element_factory_make("libcamerasrc", "libcamera");
+ pipeline_ = gst_pipeline_new("test-pipeline");
+ g_object_ref_sink(libcameraSrc);
+
+ if (!libcameraSrc || !pipeline_) {
+ g_printerr("Unable to create create pipeline %p.%p\n",
+ libcameraSrc, pipeline_);
+
+ return TestFail;
+ }
+
+ libcameraSrc_ = reinterpret_cast<GstElement *>(g_steal_pointer(&libcameraSrc));
+
+ return TestPass;
+}
+
+int GstreamerTest::startPipeline()
+{
+ GstStateChangeReturn ret;
+
+ /* Start playing */
+ ret = gst_element_set_state(pipeline_, GST_STATE_PLAYING);
+ if (ret == GST_STATE_CHANGE_FAILURE) {
+ g_printerr("Unable to set the pipeline to the playing state.\n");
+ return TestFail;
+ }
+
+ return TestPass;
+}
+
+int GstreamerTest::processEvent()
+{
+ /* Wait until error or EOS or timeout after 2 seconds */
+ constexpr GstMessageType msgType =
+ static_cast<GstMessageType>(GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
+ constexpr GstClockTime timeout = 2 * GST_SECOND;
+
+ g_autoptr(GstBus) bus = gst_element_get_bus(pipeline_);
+ g_autoptr(GstMessage) msg = gst_bus_timed_pop_filtered(bus, timeout, msgType);
+
+ gst_element_set_state(pipeline_, GST_STATE_NULL);
+
+ /* Parse error message */
+ if (msg == NULL)
+ return TestPass;
+
+ switch (GST_MESSAGE_TYPE(msg)) {
+ case GST_MESSAGE_ERROR:
+ printError(msg);
+ break;
+ case GST_MESSAGE_EOS:
+ g_print("End-Of-Stream reached.\n");
+ break;
+ default:
+ g_printerr("Unexpected message received.\n");
+ break;
+ }
+
+ return TestFail;
+}
+
+void GstreamerTest::printError(GstMessage *msg)
+{
+ g_autoptr(GError) err = NULL;
+ g_autofree gchar *debug_info = NULL;
+
+ gst_message_parse_error(msg, &err, &debug_info);
+ g_printerr("Error received from element %s: %s\n",
+ GST_OBJECT_NAME(msg->src), err->message);
+ g_printerr("Debugging information: %s\n",
+ debug_info ? debug_info : "none");
+}